Recalls
| Campaign | Manufacturer | Manufacturing date | Type | # of units affected | Date Owner notified Mfg | Recall Initiated by | Manufacturers of recalled vehicles/products | Report Recieved Date | Record Creation Date | Regulation Part Number | FMVSS Number | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SERVICE BRAKES, AIR - ANTILOCK - CONTROL UNIT/MODULE | ||||||||||||||||
| 10V039000 | TOYOTA MOTOR NORTH AMERICA, INC. | from 04/20/2009 to 01/27/2010 | V (Vehicle) | 148549 | 03/03/2010 | MFR | TOYOTA MOTOR CORPORATION | 02/09/2010 | 02/09/2010 | |||||||
| Defect Summary | Toyota is recalling certain model year 2010 toyota prius and lexus hs250h passenger vehicles. customers have experienced inconsistent brake feel after abs actuation during slow and steady application of the brakes on rough or slick road surfaces. stopping distances may be increased compared with a customer's expectation for a given pedal force. | |||||||||||||||
| Consequence Summary | Vehicle stopping distances may increase relative to a customer's expectation increasing the risk of a crash. | |||||||||||||||
| Corrective Summary | Dealers will rewrite the programming of the abs control unit free of charge. the safety recall began on march 3, 2010, and is expected to be completed in late march 2010. owners may contact toyota at 1-800-331-4331 and lexus at 1-800-255-3987. | |||||||||||||||
| Notes | Toyota recall no. aob lexus ala.owners may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to http://www.safercar.gov . | |||||||||||||||
Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| SERVICE BRAKES, AIR - ANTILOCK - CONTROL UNIT/MODULE | |||||
| TSB-0363-10 | 12/22/2010 | 10037647 | Ready | 06/01/2011 | |
| TSB-0363-10 | 12/22/2010 | 10037647 | Toyota: when stopped there may be an abnormal noise when the brake pedal is released. this is a software problem. 2010-2011 prius. *rm | 06/01/2011 | |
Investigations
| NHTSA ID | Manufacturer | Date open | Date close | Subject | Recall campaign | |
|---|---|---|---|---|---|---|
| SERVICE BRAKES, HYDRAULIC | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
| SERVICE BRAKES, HYDRAULIC - ANTILOCK | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
| SERVICE BRAKES, HYDRAULIC - ANTILOCK - CONTROL UNIT/MODULE | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS - DISC | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
| SERVICE BRAKES, HYDRAULIC - POWER ASSIST | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
| SERVICE BRAKES, HYDRAULIC - POWER ASSIST - HYDRAULIC | ||||||
| PE10006 | TOYOTA MOTOR CORPORATION | 02/03/2010 | BRAKING PERFORMANCE | |||
| The office of defects investigation (odi) has received 124 reports from consumers alleging a momentary reduction in braking performance while traveling over an uneven road surface, a pothole or a bump and applying the brakes.odi has had contact with some consumers and conducted pre-investigatory field work.some consumers describe the condition as a brief lag in braking capability or a brief surge while braking.four of the reports allege crashes occurred. two of these reports allege 2 minor injuries occurred as a result of the crashes. a preliminary evaluation has been opened to assess the scope, frequency and potential safety consequences of the alleged defect in the subject vehicles. | ||||||
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| SERVICE BRAKES | |||
| 03/13/2013 | 52500 | ||
| Experienced a complete brake failure while driving 2010 prius. dealer indicates brake booster failing and leaked nitrogen into master cylinder which should then also be replaced. dealer insist it is one assembly and estimates replacement to be $5,166 ($1,638 for booster and $2,466 for master cylinder). due to the complete warningless failure of brakes while in operation it would seem to a critical safety hazard due to the design flaw in the combined brake booster and master cylinder brake assembly causing a brake failure in operation. | |||
| 04/25/2011 | 2156 | ||
| On multiple occasions, i have experienced issues with the car suddenly accelerating while i'm pressing the brakes. specifically, this appears to occur when braking on uneven surfaces (ie construction areas, pot holes, etc.). this can obviously become a deadly situation if one is trying to stop the vehicle and with this problem run into the car/vehicle ahead. most recently this occurred on the surface streets in low speed, in traffic. it feels like the car lurches ahead while applying the brake. i was told by the service people at toyota that i was making this up. i can recreate it given the right surface. | |||
| 02/02/2011 | 6000 | ||
| When breaking over rough road, brakes fail. | |||
| 04/25/2011 | 2156 | ||
| On multiple occasions, i have experienced issues with the car suddenly accelerating while i'm pressing the brakes. specifically, this appears to occur when braking on uneven surfaces (ie construction areas, pot holes, etc.). this can obviously become a deadly situation if one is trying to stop the vehicle and with this problem run into the car/vehicle ahead. most recently this occurred on the surface streets in low speed, in traffic. it feels like the car lurches ahead while applying the brake. i was told by the service people at toyota that i was making this up. i can recreate it given the right surface. | |||
| 02/02/2011 | 6000 | ||
| When breaking over rough road, brakes fail. | |||
| 04/25/2011 | 2156 | ||
| On multiple occasions, i have experienced issues with the car suddenly accelerating while i'm pressing the brakes. specifically, this appears to occur when braking on uneven surfaces (ie construction areas, pot holes, etc.). this can obviously become a deadly situation if one is trying to stop the vehicle and with this problem run into the car/vehicle ahead. most recently this occurred on the surface streets in low speed, in traffic. it feels like the car lurches ahead while applying the brake. i was told by the service people at toyota that i was making this up. i can recreate it given the right surface. | |||
| 02/02/2011 | 6000 | ||
| When breaking over rough road, brakes fail. | |||
| 04/25/2011 | 2156 | ||
| On multiple occasions, i have experienced issues with the car suddenly accelerating while i'm pressing the brakes. specifically, this appears to occur when braking on uneven surfaces (ie construction areas, pot holes, etc.). this can obviously become a deadly situation if one is trying to stop the vehicle and with this problem run into the car/vehicle ahead. most recently this occurred on the surface streets in low speed, in traffic. it feels like the car lurches ahead while applying the brake. i was told by the service people at toyota that i was making this up. i can recreate it given the right surface. | |||
| 02/02/2011 | 6000 | ||
| When breaking over rough road, brakes fail. | |||
| 03/01/2013 | 58000 | ||
| Vehicle has no brakes at all, we turned the ignition on and the car start beeping, brake light its on, abs light on and slip indicator light is on. | |||
| 12/20/2012 | 40000 | ||
| The following event happened twice with this vehicle. tin both instances, the car was running and in park with no one in the vehicle. it then down the driveway with no one in it. in the second occurence, it appears to have gone into reverse on its own and rolled into a retaining wall causing damage to the rear passenger side bumper and back panel. | |||
| 02/10/2013 | 41 | ||
| Problem with 2010 prius performing uncontrolled hard braking while driving on interstate at approx 73~75 mph. this happen on two separate occasions, with the first being feb 10, 2013. the second incident occurred late afternoon on sat. feb 16, 2013. both occurrences were in light traffic, whereby preventing potential severe vehicular rear end collisions that could have resulted in serious bodily injures and grave vehicular damages. vehicle was checked by a toyota dealer and passes all troubleshooting tests, feb 18, 2013. requested additional tests be done on feb 19, 2013. toyota dealer could not recreate the problem. no further actions were taken by the dealer. | |||
| 12/20/2012 | 40000 | ||
| The following event happened twice with this vehicle. tin both instances, the car was running and in park with no one in the vehicle. it then down the driveway with no one in it. in the second occurence, it appears to have gone into reverse on its own and rolled into a retaining wall causing damage to the rear passenger side bumper and back panel. | |||
| 02/10/2013 | 41 | ||
| Problem with 2010 prius performing uncontrolled hard braking while driving on interstate at approx 73~75 mph. this happen on two separate occasions, with the first being feb 10, 2013. the second incident occurred late afternoon on sat. feb 16, 2013. both occurrences were in light traffic, whereby preventing potential severe vehicular rear end collisions that could have resulted in serious bodily injures and grave vehicular damages. vehicle was checked by a toyota dealer and passes all troubleshooting tests, feb 18, 2013. requested additional tests be done on feb 19, 2013. toyota dealer could not recreate the problem. no further actions were taken by the dealer. | |||
| 12/20/2012 | 40000 | ||
| The following event happened twice with this vehicle. tin both instances, the car was running and in park with no one in the vehicle. it then down the driveway with no one in it. in the second occurence, it appears to have gone into reverse on its own and rolled into a retaining wall causing damage to the rear passenger side bumper and back panel. | |||
| 02/10/2013 | 41 | ||
| Problem with 2010 prius performing uncontrolled hard braking while driving on interstate at approx 73~75 mph. this happen on two separate occasions, with the first being feb 10, 2013. the second incident occurred late afternoon on sat. feb 16, 2013. both occurrences were in light traffic, whereby preventing potential severe vehicular rear end collisions that could have resulted in serious bodily injures and grave vehicular damages. vehicle was checked by a toyota dealer and passes all troubleshooting tests, feb 18, 2013. requested additional tests be done on feb 19, 2013. toyota dealer could not recreate the problem. no further actions were taken by the dealer. | |||
| 12/20/2012 | 40000 | ||
| The following event happened twice with this vehicle. tin both instances, the car was running and in park with no one in the vehicle. it then down the driveway with no one in it. in the second occurence, it appears to have gone into reverse on its own and rolled into a retaining wall causing damage to the rear passenger side bumper and back panel. | |||
| 02/10/2013 | 41 | ||
| Problem with 2010 prius performing uncontrolled hard braking while driving on interstate at approx 73~75 mph. this happen on two separate occasions, with the first being feb 10, 2013. the second incident occurred late afternoon on sat. feb 16, 2013. both occurrences were in light traffic, whereby preventing potential severe vehicular rear end collisions that could have resulted in serious bodily injures and grave vehicular damages. vehicle was checked by a toyota dealer and passes all troubleshooting tests, feb 18, 2013. requested additional tests be done on feb 19, 2013. toyota dealer could not recreate the problem. no further actions were taken by the dealer. | |||
| 12/01/2012 | 20000 | 1 | |
| This is a recurring problem. anytime i am slowing down for a red light and there is a pothole or other rough surface condition, the car lurches forward and jumps, so to speak. given the condition of the roads in chicago, this is a pretty regular problem. i usually have to press the brake much harder than normal while this is occurring because of crosswalks and lights. i think this is a serious safety issue; however, when asking the dealer to look into this, they indicated that it was the anti-lock braking system kicking in, and that it was a perfectly common thing to experience. *tr | |||
| 12/01/2012 | 20000 | ||
| This is a recurring problem. anytime i am slowing down for a red light and there is a pothole or other rough surface condition, the car lurches forward and jumps, so to speak. given the condition of the roads in chicago, this is a pretty regular problem. i usually have to press the brake much harder than normal while this is occurring because of crosswalks and lights. i think this is a serious safety issue; however, when asking the dealer to look into this, they indicated that it was the anti-lock braking system kicking in, and that it was a perfectly common thing to experience. | |||
| 12/22/2012 | 34794 | 1 | |
| All brakes failed while i was going 69mph on i-75 south just north of the union centre boulevard exit, approaching i-275 at the butler/hamilton county line on sat. dec. 22.. all warning lights came on and the warning beeps. i was in heavy traffic but was in the right lane and was able to exit on the union centre exit ramp and roll to a stop. this happened the day after i had the car at performance toyota in fairfield, oh for the 35,000 mile check/oil change (on dec. 21) .the car had to be towed to performance toyota on dec 22; they determined the master cylinder failed (lost its vacuum) causing total brake failure. *tr | |||
| 12/01/2012 | 20000 | ||
| This is a recurring problem. anytime i am slowing down for a red light and there is a pothole or other rough surface condition, the car lurches forward and jumps, so to speak. given the condition of the roads in chicago, this is a pretty regular problem. i usually have to press the brake much harder than normal while this is occurring because of crosswalks and lights. i think this is a serious safety issue; however, when asking the dealer to look into this, they indicated that it was the anti-lock braking system kicking in, and that it was a perfectly common thing to experience. | |||
| 12/22/2012 | 34794 | ||
| All brakes failed while i was going 69mph on i-75 south just north of the union centre boulevard exit, approaching i-275 at the butler/hamilton county line on sat. dec. 22.. all warning lights came on and the warning beeps. i was in heavy traffic but was in the right lane and was able to exit on the union centre exit ramp and roll to a stop. this happened the day after i had the car at performance toyota in fairfield, oh for the 35,000 mile check/oil change (on dec. 21) .the car had to be towed to performance toyota on dec 22; they determined the master cylinder failed (lost its vacuum) causing total brake failure. | |||
| 01/17/2013 | 29100 | 1 | |
| Incident #1 brake: on january 17, 2013 as i was entering the intersection about 20mph, i applied my brakes, but they went straight to the floor and warning light started blinking. i pressed brakes very hard and car almost stop, then, its brakes gave up. there is sudden slight unintended acceleration and i almost hit car front of me. but, i am able to manage to drove the car into the center island. brake was totally out, and the car started drove by itself. i panicked and pressed power button to shut off the engine. car drove about 15 feet and stopped. after this incident, i tow my car to the dealer, they told me that lost brake is due to short circuit made domino effect to multiple computers malfunction. they will replace whole computer system, but service man would not guarantee it will never happen again. incident #2 power failed and shut down while driving at highway. on december, 2012 and january 2013. i was driving at highway and trying to merge into the center line, car stalled and prompted key does not detect message on the screen. i almost hit from behind by another car. while the car still has a speed about 40mph, i managed to restart the car by depressed brake and press power bottom. it is true this car lose brake and does slight accelerate. *tr | |||
| 01/17/2013 | 29100 | ||
| Incident #1 brake: on january 17, 2013 as i was entering the intersection about 20mph, i applied my brakes, but they went straight to the floor and warning light started blinking. i pressed brakes very hard and car almost stop, then, its brakes gave up. there is sudden slight | |||
| 01/20/2011 | 5000 | 1 | |
| When driving on an uneven or wet surface the brakes seem to lag for a few seconds and the car hops forward. *tr | |||
| 01/20/2011 | 5000 | ||
| When driving on an uneven or wet surface the brakes seem to lag for a few seconds and the car hops forward. | |||
| 12/26/2012 | 33500 | 1 | |
| My prius iv, purchased new in 2010, intermittently had a lunging forward problem when going over speed bumps, pot holes etc. i would have to stop it by braking quickly, so i didn't collide with a car ahead. i informed toyota of this problem within the first year. they tested it and said they could find nothing. i mentioned this to them on various occasions when i took the car for its periodic maintenance of 5000 mile intervals. on december 26, 2012 i was stopped waiting to go left when i was rear-ended. i went to pull over to the side of the road to assess the damage. when i accelerated to get to the side of the road,the car took off crazily, at a high rate of speed for about 6-7 seconds, zigzagging uncontrollably on the 2 lane road. if there were cars coming toward me, i would have been in a head on crash. i immediately called toyota service of scranton,pa and asked them to see and assess the car's problem. they made an appointment and concluded.said there is no problem internally, and suggested removing the after market floormat. i then proceeded to show them the same problems many customers are having with the prius , including an article by steve wozniak, the co-founder of apple company, who had acceleration problems with his 2010 prius. i called the main toyota headquarters later, explaining the problem and they too said there is no malfunction , only mentioning the floor mats again.. this is not the case as the car has had acceleration problems from the beginning and to further clarify, i was able to finally stop the car... the mat was no where near the accelerator. i am afraid to drive this for others' safety, my passengers and my own safety. i take care of my cars faithfully. you can view my records. i am also fearful if i trade this car, someone else might get injured or killed. can you please check and advise. *tr | |||
| 12/26/2012 | 33500 | ||
| My prius iv, purchased new in 2010, intermittently had a lunging forward problem when going over speed bumps, pot holes etc. i would have to stop it by braking quickly, so i didn't collide with a car ahead. i informed toyota of this problem within the first year. they tested it and said they could find nothing. i mentioned this to them on various occasions when i took the car for its periodic maintenance of 5000 mile intervals. on december 26, 2012 i was stopped waiting to go left when i was rear-ended. i went to pull over to the side of the road to assess the damage. when i accelerated to get to the side of the road,the car took off crazily, at a high rate of speed for about 6-7 seconds, zigzagging uncontrollably on the 2 lane road. if there were cars coming toward me, i would have been in a head on crash. i immediately called toyota service of scranton,pa and asked them to see and assess the car's problem. they made an appointment and concluded.said there is no problem internally, and suggested removing the after market floormat. i then proceeded to show them the same problems many customers are having with the prius , including an article by steve wozniak, the co-founder of apple company, who had acceleration problems with his 2010 prius. i i called the main toyota headquarters later, explaining the problem and they too said there is no malfunction , only mentioning the floor mats again.. this is not the case as the car has had acceleration problems from the beginning and to further clarify, i was able to finally stop the car... the mat was no where near the accelerator. i am afraid to drive this for others' safety, my passengers and my own safety. i take care of my cars faithfully. you can view my records. i am also fearful if i trade this car, someone else might get injured or killed. can you please check and advise. | |||
| 12/14/2012 | 30100 | 1 | |
| If you go over a bump while braking - the brakes fail, and you have to take your foot off the brake and re-apply in order to stop. this has occurred numerous times - and is a serious flaw on this automobile. this car is a fleet vehicle for my company and i have asked peers if this occurs on their cars - and they have confirmed the same experience with their brakes. with all the toyota recalls - i am unclear why this has not been addressed...? *tr | |||
| 12/14/2012 | 30100 | ||
| If you go over a bump while braking - the brakes fail, and you have to take your foot off the brake and re-apply in order to stop. this has occurred numerous times - and is a serious flaw on this automobile. this car is a fleet vehicle for my company and i have asked peers if this occurs on their cars - and they have confirmed the same experience with their brakes. with all the toyota recalls - i am unclear why this has not been addressed...? | |||
| 11/28/2012 | 45000 | 1 | |
| I was in the right lane traveling west bound on tennessee street in tallahassee, fl, and as i was going through the light at the corner of tennessee and monroe street, the traffic stopped just past the intersection. as i was entering the intersection, i applied my brakes but they went straight to the floor and a warning light started blinking. i had one of two choices; hit the car in front of me or hit the curb for the sidewalk close to where a man was standing with his bicycle. luckily i had just enough room to go between the back-end of the car in front of me and the man on the sidewalk. fortunately no one was injured in my accident, i just scared the man very badly, but the repairs to my car are probably going to be more than $4,000. *tr | |||
| 12/14/2012 | 30100 | ||
| If you go over a bump while braking - the brakes fail, and you have to take your foot off the brake and re-apply in order to stop. this has occurred numerous times - and is a serious flaw on this automobile. this car is a fleet vehicle for my company and i have asked peers if this occurs on their cars - and they have confirmed the same experience with their brakes. with all the toyota recalls - i am unclear why this has not been addressed...? | |||
| 11/28/2012 | 45000 | 1 | |
| I was in the right lane traveling west bound on tennessee street in tallahassee, fl, and as i was going through the light at the corner of tennessee and monroe street, the traffic stopped just past the intersection. as i was entering the intersection, i applied my brakes but they went straight to the floor and a warning light started blinking. i had one of two choices; hit the car in front of me or hit the curb for the sidewalk close to where a man was standing with his bicycle. luckily i had just enough room to go between the back-end of the car in front of me and the man on the sidewalk. fortunately no one was injured in my accident, i just scared the man very badly, but the repairs to my car are probably going to be more than $4,000. *tr | |||
| 11/28/2012 | 45000 | ||
| I was in the right lane traveling west bound on tennessee street in tallahassee, fl, and as i was going through the light at the corner of tennessee and monroe street, the traffic stopped just past the intersection. as i was entering the intersection, i applied my brakes but they went straight to the floor and a warning light started blinking. i had one of two choices; hit the car in front of me or hit the curb for the sidewalk close to where a man was standing with his bicycle. luckily i had just enough room to go between the back-end of the car in front of me and the man on the sidewalk. fortunately no one was injured in my accident, i just scared the man very badly, but the repairs to my car are probably going to be more than $4,000. | |||
| 09/06/2011 | 40581 | 1 | |
| Ok, this type of incident (loss of braking at low speeds) has happened repeatedly in this vehicle, despite a recall in 2010 and software fix. the date listed is approximate. i felt compelled to provide this information after having this happen twice in the past week, in the hopes that some permanent fix can be made available, and to warn prospective buyers to be cautious. in all incidents, when traveling over bumps in a road with the brakes engaged, there is a sudden slight acceleration, but in actuality, probably just the momentary loss of braking. this happens when going over: (1) manhole covers (2) potholes (3) slight dips in the road (from subsiding road patching areas). does not appear to be worse in wet conditions, and has only happened to me at low speeds (~5 -- ~ 20 mph). note that original carpeted mats were replaced with ones that fit a bit better, and do not cause any issues with the acceleration pedal. once the bump is passed over, normal braking occurs. when i feel this vehicle momentarily lose braking, i quickly let off the brake for a split second, and resume braking. i have gotten used to this defect, but i sure would like someone to investigate and provide a quality recall fix. this braking issue has happened in north carolina (where the vehicle was purchased) and in massachusetts. thank you. *tr | |||
| 09/06/2011 | 40581 | ||
| Ok, this type of incident (loss of braking at low speeds) has happened repeatedly in this vehicle, despite a recall in 2010 and software fix. the date listed is approximate. i felt compelled to provide this information after having this happen twice in the past week, in the hopes that some permanent fix can be made available, and to warn prospective buyers to be cautious. in all incidents, when traveling over bumps in a road with the brakes engaged, there is a sudden slight acceleration, but in actuality, probably just the momentary loss of braking. this happens when going over: (1) manhole covers (2) potholes (3) slight dips in the road (from subsiding road patching areas). does not appear to be worse in wet conditions, and has only happened to me at low speeds (~5 -- ~ 20 mph). note that original carpeted mats were replaced with ones that fit a bit better, and do not cause any issues with the acceleration pedal. once the bump is passed over, normal braking occurs. when i feel this vehicle momentarily lose braking, i quickly let off the brake for a split second, and resume braking. i have gotten used to this defect, but i sure would like someone to investigate and provide a quality recall fix. this braking issue has happened in north carolina (where the vehicle was purchased) and in massachusetts. thank you. | |||
| 03/31/2010 | |||
| When i encounter a bump while applying the brakes in my 2010 toyota prius, the brakes fully disengage momentarily. this causes the car to jolt forward unexpectedly. my foot is not coming off the brake at all when this happens, so i know i am not the cause of it. i received a recall notice by mail in february 2010 to address just this issue. i took the car to the nearest toyota dealership to have the recall work completed. it was intended to fix the malfunction in the anti-lock brake system that caused the brakes to disengage when the car hits a bump. the recall work was completed, but the problem was not resolved. the brakes still do the exact same thing and fully disengage when i hit a bump while braking. this is unquestionably dangerous and a serious safety hazard. | |||
| 10/04/2012 | 69180 | 1 | |
| On tuesday october 02, 2012 at approximately 0510 the vehicle brakes went out and the brake, abs, and stabilization lights came on along with alarm. vehicle was towed to toyota dealership for repair - told it was the master cylinder. vehicle picked up on morning of october 4, 2012 from dealership drove approximately 20 miles and the exact same thing occurred. brakes, abs, stabilization alarms came on. toyota dealership was called and said that the vehicle should be fine - system had cleared with part replacement - maybe it was a bad part or there could be air in the lines. vehicle is presently at the dealership awaiting inspection. fortunately, no accidents or injuries occurred on these dates. however because of the loss of brakes and near accidents this vehicle is now a threat to my safety. so far i have been lucky - i do not want to take a chance with the third being the time that i am in a serious accident. *tr | |||
| 10/04/2012 | 69180 | ||
| On tuesday october 02, 2012 at approximately 0510 the vehicle brakes went out and the brake, abs, and stabilization lights came on along with alarm. vehicle was towed to toyota dealership for repair - told it was the master cylinder. vehicle picked up on morning of october 4, 2012 from dealership drove approximately 20 miles and the exact same thing occured. brakes, abs, stabilization alarms came on. toyota delership was called and said that the vehicle should be fine - system had cleared with part replacement - maybe it was a bad part or there could be air in the lines. vehicle is presently at the delearship awaiting inspection. fortunately, no accidents or injuries occured on these dates. however because of the loss of brakes and near accidents this vehicle is now a threat to my safety. so far i have been lucky - i do not want to take a chance with the third being the time that i am in a serious accident. | |||
| 09/20/2012 | 20100 | 1 | |
| Traveling on parkway when we were approaching a vehicle going south down at approximately 55 we were traveling 72 with cruise control engaged, i tapped the brakes to try and slow and nothing happened i then held the brake pedal down for more than 15 seconds with no success, tried to disengage the cruise by pulling back on the handle on the steering wheel and still it would not disengage, we struck the truck at 72 mph only because we had no where else to go and the vehicle would not disengage cruise. the cruise control light was still illuminated after the vehicle came to rest after impact and the vehicle brakes still did not appear to function, this vehicle was a toyota lease and was told multiple times by toyota that the issues was recalled by toyota and that this vehicle had the recall performed. *tr | |||
| 09/20/2012 | 20100 | ||
| Traveling on parkway when we were approaching a vehcile going south down at approximately 55 we were taveling 72 with cruise control engaged, i taped the brakes to try and slow and nothing happened i then held the brake pedal down for more than 15 seconds with no success, tried to disengage the cruise by pulling back on the handle on the steering wheel and still it would not disengage, we struck the truck at 72 mph only becuase we had no where else to go and the vehicle would not disengage cruise. the cruise control light was still illumainted after the vehcile came to rest after impact and the vehcile brakes still did not appear to function, this vehicle was a toyota lease and was told multiple times by toyota that the issues was recalled by toyota and that this vehicle had the recall performed | |||
| 09/10/2012 | 28000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that while driving 15 mph, the vehicle started to lose power lunged forward. the contact attempted to apply the brakes however, the brakes were inoperable and caused the contact to crash into another vehicle. the passenger of the second vehicle claimed an injury and was transported to the emergency room. the police were notified and a report was filed. the vehicle was inoperable and was towed to the dealer who had not yet diagnosed the failure. the manufacturer was notified of the failure who advised that the vehicle diagnosis was going to take four to six weeks and offered no additional assistance. the failure and current mileage was 28,000. | |||
| 09/07/2012 | 28000 | 1 | |
| Turned on car and noticed alot of the dashboard lights stayed on. as i pressed the brake pedal it felt weird and once i put the car on the drive gear i totally lost brake control, the car kept moving and i was not able to stop. i had to shift to park and risk the transmission but better than risking my life... i called a towing truck. the car is at the toyota dealer and i don't think they have a clue of what's wrong with it.... we'll keep you posted. *tr | |||
| 09/05/2012 | 25000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact was traveling 25 mph and drover over a road bump. the contact applied the brakes however, the vehicle would not respond. the vehicle was taken to the dealer but was not repaired. the manufacturer was not contacted. the failure mileage was 25,000. the current mileage was 75,000. | |||
| 09/07/2012 | 28000 | 1 | |
| Turned on car and noticed alot of the dashboard lights stayed on. as i pressed the brake pedal it felt weird and once i put the car on the drive gear i totally lost brake control, the car kept moving and i was not able to stop. i had to shift to park and risk the transmission but better than risking my life... i called a towing truck. the car is at the toyota dealer and i don't think they have a clue of what's wrong with it.... we'll keep you posted. *tr | |||
| 09/05/2012 | 25000 | ||
| Tl- the contact owns a 2010 toyota prius. the contact was traveling 25 mph and drover over a road bump. the contact applied the brakes however, the vehicle would not respond. the vehicle was taken to the dealer but was not repaired. the manufacturer was not contacted. the failure mileage was 25,000. the current mileage was 75,000. kmj | |||
| 09/07/2012 | 28000 | ||
| Turned on car and noticed alot of the dashboard lights stayed on. as i pressed the brake pedal it felt weird and once i put the car on the drive gear i totaly lost brake control, the car kept moving and i was not able to stop. i had to shift to park and risk the transmition but better than risking my life... i called a towing truck. the car is at the toyota dealer and i dont think they have a clue of what's wrong with it.... we'll keep you posted. | |||
| 09/05/2012 | 25000 | ||
| Tl- the contact owns a 2010 toyota prius. the contact was traveling 25 mph and drover over a road bump. the contact applied the brakes however, the vehicle would not respond. the vehicle was taken to the dealer but was not repaired. the manufacturer was not contacted. the failure mileage was 25,000. the current mileage was 75,000. kmj | |||
| 09/07/2012 | 28000 | ||
| Turned on car and noticed alot of the dashboard lights stayed on. as i pressed the brake pedal it felt weird and once i put the car on the drive gear i totaly lost brake control, the car kept moving and i was not able to stop. i had to shift to park and risk the transmition but better than risking my life... i called a towing truck. the car is at the toyota dealer and i dont think they have a clue of what's wrong with it.... we'll keep you posted. | |||
| 09/05/2012 | 75000 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated while traveling 25 mph the vehicle hit a bump in the road. while trying to apply the brakes the vehicle lost stopping power. the vehicle was driven to the dealer. the vehicle was not repaired. the manufacturer was not contacted. the failure mileage was 25,000. the current mileage was 75,000. the contact was referred to toyota. mh | |||
| 05/04/2012 | 36000 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated that whenever braking to drive over any uneven road surface, the braking distance was increased. the contact stated that the vehicle also seemed to push forward as if another vehicle had abruptly crashed into the rear of the contact's vehicle. the vehicle was not inspected. the failure mileage was 36,000 and the current mileage was 38,216. kmj | |||
| 05/04/2012 | 36000 | ||
| Tl- the contact owns a 2010 toyota prius. the stated that whenever the vehicle is slowed while going over uneven pavement the braking distance is longer. the contact stated that the vehicle also seems to push forward like someone runs into the back of them. the vehicle had not been inspected. the failure mileage was 36,000 and the current mileage was 38,216.rl | |||
| 07/18/2012 | 26500 | 1 | |
| The unintended acceleration accident happened on 7/18/2012, ~6:20pm at company's parking lot. i backed my 2010 prius slowly. then i saw a car coming on my way. but before i took any action, this prius suddenly started accelerating, it went wildly, and turned more than 360 degree backward in the parking lot in just a few seconds. since the car parked between a building and a slop, from the front mirror, first i saw the building wall and glasses, then i saw the slope, then i saw a car parked close to my car: no! don?t hit that car! that is the last thing i remember. because of the fast turning of the car and because i was so terribly scared, i lost conscious after that until the prius hit the truck and bounced back and stopped by itself. after a few seconds, i woke up and realized: i am still alive. i got off the car and saw prius passed the two curbs and hit the truck. the two tires on the driver side got flat because they passed the curb very fast. i was so scared that i couldn?t recall of anything for a few days until weekend. why did the car lose control? one may argue that i stepped on the accelerator. this could happen to new drivers, but not to me because i have been driving for so many years and always a good driver. many times i saw a car on my way when i was backing, i always stopped right away. and i was healthy in a normal day in normal mode, alert as usual. why would i step on accelerator when backing? even if i mis-stepped on the accelerator, i can always switch to brake right away. but i could?t do anything about the car on the day. it was out of control completely. after i lost conscious, my hands were off the steering wheel and my foot didn't step on anything, the car didn't slow down but still moved fast and passed two curbs easily. such a manipulation can only be done when the car is in acceleration, and by itself. please investigate it asap! *tr | |||
| 07/18/2012 | 26500 | ||
| The unintended acceleration accident happened on 7/18/2012, ~6:20pm at company | |||
| SERVICE BRAKES, AIR | |||
| 10/29/2010 | 13500 | ||
| I am an owner of a 2010 toyota prius that was recalled for brake problems. the automobile jolts forward for a split second when the brakes are applied and the automobile also passes over a bump or pothole. i took the automobile back to the dealer pursuant to the recall to be fixed. the dealer did not fix the problem. the problem remains even after the recall and supposed remedy. i have read that others have the same issue, and the problem has not been corrected by the recall in other chatrooms. i am sure that you are aware that the recall did not resolve the problem. | |||
| 08/15/2010 | 1000 | ||
| Same as everyone else: when braking while turning over uneven pavement, brakes seem to accelerate or loosen temporarily. so when is nhtsa going to do something about this? or are they waiting for a significant number of deaths first? | |||
| 02/09/2010 | 1500 | ||
| Tl-the contact owns a 2010 toyota prius. the vehicle was repaired for the recall associated with nhtsa campaign id number 10v039000, service brakes, air:antilock:control unit/module. upon receiving the vehicle he was driving approximately 30 mph when he applied the brakes while driving over a bumpy surface. once he drove over the bumpy service the brakes stopped working. he had to reapply pressure to the brakes in order to slow the vehicle down. the vehicle was taken to an authorized dealer on 4 occasions where they were unable to diagnose the failure. the vehicle was not repaired. the failure mileage was 1,500 and the current mileage was 11,102. the vin was unavailable. sm. | |||
| 04/18/2010 | 17966 | ||
| After taking my 2010 prius in for the recall fix on april 1, 2010, the vehicle continued to exhibit safety defects. i reproted this to the dealer who reproted it to corporate and arranged for a field tech to analyze the vehicle on april 13th. they said we would hear from toyota with in two weeks i never heard back from the dealer so i called the dealer last week. dealer had not heard back. i filed under the lemon law. then dealer informed me yesterday 5/17 that the car was healthy and there is nothing more they can do. my car experienced the same brake failure this morning, turning into a parking lot. | |||
| 03/24/2010 | 1000 | ||
| I have a 2010 toyota prius, and have noticed that while braking on uneven pavement, the car lurches forward. the jack safro dealership said to bring it in, as there was a recall. since they worked on it, i see no change. i called the dealership and told them there was no difference, and they took it for a test drive. the mechanic said he didn't experience any problem. they said they would note the problem, but there was nothing else they could do. i have to be very careful when approaching a stop sign or light on uneven pavement. i fear rear ending someone. or worse hitting a pedestrian. | |||
| 05/11/2010 | |||
| I have a 2010 prius and i have the braking problem that was recalled for a software update. i had the software update performed and i still have a loss of braking control when i go over a bump in the road. | |||
| 03/31/2010 | 11000 | ||
| I have a 2010 toyota prius and had it taken back to the dealership for the recent recall. however, i am still experiencing the same problems as before with the car. whenever i have gone over a bump the car feels like it jumps forward and loses a little control. | |||
| 03/28/2010 | 888 | ||
| 2010 prius still accelerates after fix. | |||
| 03/20/2010 | 200 | ||
| Re: 2010 toyota prius iv; on february 27, 2010, i visited the toyota santa monica service department to have the abs software update installed. since purchasing my vehicle in september 2009, up until the date of the software update, i experienced the inconsistent feel of the brakes usually once per week. however, since the software update, in the first week alone, the inconsistent feel occurred seven times, with the most alarming incident occurring during my morning drive to work on friday, march 5th. i was driving on pico boulevard just past avenue of the stars, gently tapping on my brakes down the hill for a stop, when the car briefly accelerated and almost rear-ended the vehicle in front of me. additionally, i experienced the brief acceleration twice while braking for pedestrians at crosswalks last week. now, i am experiencing the slipping sensation with the brakes about 2 - 3 times per week. i have calling toyota toll-free customer service nineteen times, but each time received an automated message stating that the company was experiencing high call volume and would be unable to answer my call. i sent two faxes on march 6th, asking the company to arrange a second service appointment to repair the brakes. i have yet to receive any type of response from the company. today, on march 20th, i called toyota santa monica to describe the problem and request a second service appointment. while driving during my lunch break today, i again had the brakes slip on me. i spoke with a service supervisor at toyota santa monica at 500 pm today to ask for a second appointment. he decided to insult my intelligence and tell me that what i was experiencing is a normal feel of the abs brakes. this is unacceptable! i want the car repaired. if toyota cannot prevent this inconsistent feel and slipping sensation in my brakes, then i was my purchase contract to be completely dissolved. i will not continue to finance a lemon and have toyota lie to me about its safety. | |||
| 03/03/2010 | 5100 | 1 | |
| My vehicle surged forward while i applied the brake and was traveling over a small patch of rough surface. it felt like the gas pedal had been stomped, but i was only using the brakes. *tr | |||
| 11/25/2009 | 600 | 1 | |
| I have been having braking failure since the first week i brought the car home. i complained about it to toyota ardmore, where i had bought the car, and asked them to check it out. specifically, i found it difficult to brake on wet surfaces after rain. because i was bringing the car in the first week i took possession for another issue, i was told this would be looked into. afterward, i was told there was no problem. but the issue of faulty braking continued. my son was driving the car and hit a pothole and found it difficult to regain control of the car. this past week with major snowfall in the philadelphia region, the car has become virtually undrivable. it hits icy patches and skids forward when we try to brake. i have two additional messages with toyota ardmore asking them to address this problem. i have not yet heard back from the, *cn | |||
| 10/12/2009 | 4500 | 1 | |
| 2010 toyota prius - driving on alabama state highway closer to nashville, tn we hit a deer. this was on oct 12, 2009 around 8:30 am in the morning. the road was very empty and clear visibility. the deer came in from the left side of the road from the oncoming traffic and jumped into our lane. i had clear visibility of the deer and applied sudden brakes...we hit the deer and had extensive damage on the car. we never thought it might be an issue with the car...but now with so much of scrutiny going on with this new prius, we do want to bring to the attention of your organization that from day 1 of purchasing the car the brakes are really funky. we had an suv before and compared to that this car is very very sensitive on the brakes. if we are going in at high speed and brake suddenly it does not come to an abrupt halt and we always thought that is way these cars were. i never had a new car and never could imagine something like a break issue. so coming to the deer hit i feel now in hind sight that we had enough time and distance to avoid hiitting the animal and could not stop on time. the car took an extensive damage and we got it repaired at a toyota dealer ship in nashville and took a rental car home. the car looks great like a new one but the brake is still the same. on low speeds if i break it feels like i have placed really hard/slammed on the brakes and on high speed the car definetly needs lot of time to stop *cn | |||
| 02/06/2010 | 1360 | 1 | |
| While driving eastbound on moorpark street, approaching dixie canyon avenue, i braked in preparation to make a right hand turn, and the brakes released when i hit a small pot hole. the brakes re-engaged approximately 1-2 seconds later. *cn | |||
| 12/01/2009 | 1 | ||
| When i brake while going over a speed bump, the car lunges forward. please note: i really am not sure of the date. i bought the car in july of 2009. this has happened to me a few times and it was such a bizarre combination (accelerating while braking) that i really didn't clue in to it as a car issue right away. when i saw press on it and discovered that it was an actual issue and not a fluke i called the service department of the dealer where i got the car (north hollywood toyota). they basically refused to even discuss it, saying they'd only follow the orders of toyota corporate. they gave me a number to call, and of course, in light of the recent issues, they are swamped. the recording indicated they were not accepting calls. so now i have a car that actually has an issue and cannot get it fixed. *cn | |||
| 01/02/2010 | 5100 | ||
| I was driving down a hill that has a slightly uneven surface and was a bit icy and when applying the brake in my prius, my car sped up slightly when it hit the uneven surface and seemingly jumped faster before the brakes kicked in and brought my car to a stop. this has happened twice on different roads, both of the road surfaces being slightly uneven. nothing has been done to correct this problem, when i called toyota they told me that there was nothing they could do. | |||
| 11/21/2009 | 75 | 1 | |
| Faulty brakes on 2010 prius. i noticed within a week or so after purchase in november, 2009 that when going over a bump or pothole in the road and i used the brake pedal, there was a delay wherein the car seemed to accelerate over the problem in the road, nearly leading me to collision with another vehicle or pedestrian. since november it's been a constant, frightening problem. *tw | |||
| 01/16/2010 | 1600 | 1 | |
| On several occasions my 2010 prius has failed to stop immediately when i have applied the brake at slow speeds. this has occurred while on ice surfaces as well as clear surfaces. there is just a fraction of a second delay before the brakes take hold. fortunately there has not yet been an accident but if i were to have had less space between me and the car ahead, there would have been a crash. *cn | |||
| SERVICE BRAKES, AIR - ANTILOCK | |||
| 01/26/2010 | 1900 | 1 | |
| I was driving on city streets, and coming to a stop sign. i started braking, and while braking, i hit a smallish pothole. it felt like my brakes stopped working. fortunately the brakes started working again before we reached the intersection. i think we were driving 25 mph when this happened. this is the first time it has happened in our new car which is only 1 month old. this was is scary feeling, and unlike any other i've felt. it was not anti-lock brakes, as i've experienced that before.*cw | |||
| SERVICE BRAKES, ELECTRIC | |||
| 05/01/2011 | 10000 | ||
| My 2010 prius lurches forward when the brakes are applied and i hit a bump or other uneven surfaces. | |||
| 07/25/2011 | 29980 | ||
| 2010 toyota prius, with 29000 miles. pulling into a parking lot at a very slow speed, applied brakes to stop car, but it did not stop it, it started jerking forward, until it stopped when it struck a fence, injuries occured as a result, seat belt did not old back driver, and driver wipped forward and back striking steering wheel. vehicle was towed to toyotta dealer. still wating for toyota corp to advise of error that occured, data from cmputer has been downloaded by a private firm and delivered to toyota. 8/9/11 accident occured on 7/25/11 at 14:30 | |||
| 08/02/2011 | 20472 | ||
| Ever since i purchased my 2010 prius in november, 2009 the brakes have been a problem. when braking while driving over a bump or pothole the car looses braking ability and there is a surge of power. the dealership claims there is no problem and the recall work has not made a noticeable difference. | |||
| 07/25/2011 | 29980 | ||
| 2010 toyota prius, with 29000 miles. pulling into a parking lot at a very slow speed, applied brakes to stop car, but it did not stop it, it started jerking forward, until it stopped when it struck a fence, injuries occured as a result, seat belt did not old back driver, and driver wipped forward and back striking steering wheel. vehicle was towed to toyotta dealer. still wating for toyota corp to advise of error that occured, data from cmputer has been downloaded by a private firm and delivered to toyota. 8/9/11 accident occured on 7/25/11 at 14:30 | |||
| 08/02/2011 | 20472 | ||
| Ever since i purchased my 2010 prius in november, 2009 the brakes have been a problem. when braking while driving over a bump or pothole the car looses braking ability and there is a surge of power. the dealership claims there is no problem and the recall work has not made a noticeable difference. | |||
| 03/01/2011 | 15000 | ||
| Having problems with the braking on my 2010 toyota prius. at slow to moderate speeds while i am braking and go over a pothole the car seems to stop braking and keeps going. i then have to depress the brake harder to make the car stop. i haven't had any collisions because of this issue because i have not been following closely behind a car. but i believe if i was, i would have definitely rear-ended another vehicle. | |||
| 09/15/2010 | 100 | ||
| I purchased a 2010 prius. within a 100 miles, the brake pedal randomly locked up, the brakes grabbed and brought my car to an abrupt halt. the brake pedal remained locked for about 3-5 seconds. the car would not move forward or backward until after the brake pedal unlocked itself. initially this happened in reverse mode several times, then it was happening once a week and in forward mode as well as reverse. i took it in for repairs, most recently toyota had my car for a month. note that during this month long investigation nothing was done to my car, it just sat there. upon my leaving the dealership the brake pedal actually lock up! the field representative confirmed the pedal to be locked and would not release for 30 seconds or longer. he took measurements and the engineer took photos of the brake pedal as it was up in the air and not depressed as a normal pedal would be. he instructed the service manager to send me home in a loaner car and not the prius because of the brake pedal. i was so relieved that someone finally saw the brake pedal locked up and not release. after an additional week, the dealer contacted me and said that toyota determined that this condition is normal and that the vehicle is operating as designed! when i requested that the photos and measurements of the locked up brake pedal be included in my service report, the field representative refused to furnish that data. instead, he denied he witnessed the brake pedal lock up. there were no codes, no warning lights or warning sounds, a serious safety defect in addition to the brakes locking up. the dealer informed me that toyota is aware that 1% of the prius cars have this problem and are working on a fix! i believe that the design and/or manufacturing defect have resulted in an inherently dangerous product and toyota is trying to cover it up. please check into this, i believe many people are at risk. 1% of a million cars is a lot of drivers, passengers and others sharing the road. | |||
| 03/06/2011 | 30000 | ||
| 2010 prius. brake fade during hard braking on rough surface. the brakes suddenly fade then grab hard. | |||
| 04/03/2011 | 16674 | ||
| Backed 2010 prius up and started to make u-turn in driveway. when pulled forward turning applied brakes and well there were none. traveled aboutg 15 feet and hit a brick wall. after some delay the engine now had some control as the brakes also did. waiting for towing instructions to get the car to garage. maximum speed was maybe 5mph | |||
| 03/06/2011 | 30000 | ||
| 2010 prius. brake fade during hard braking on rough surface. the brakes suddenly fade then grab hard. | |||
| 04/03/2011 | 16674 | ||
| Backed 2010 prius up and started to make u-turn in driveway. when pulled forward turning applied brakes and well there were none. traveled aboutg 15 feet and hit a brick wall. after some delay the engine now had some control as the brakes also did. waiting for towing instructions to get the car to garage. maximum speed was maybe 5mph | |||
| 03/06/2011 | 30000 | ||
| 2010 prius. brake fade during hard braking on rough surface. the brakes suddenly fade then grab hard. | |||
| 04/03/2011 | 16674 | ||
| Backed 2010 prius up and started to make u-turn in driveway. when pulled forward turning applied brakes and well there were none. traveled aboutg 15 feet and hit a brick wall. after some delay the engine now had some control as the brakes also did. waiting for towing instructions to get the car to garage. maximum speed was maybe 5mph | |||
| 03/06/2011 | 30000 | ||
| 2010 prius. brake fade during hard braking on rough surface. the brakes suddenly fade then grab hard. | |||
| 04/03/2011 | 16674 | ||
| Backed 2010 prius up and started to make u-turn in driveway. when pulled forward turning applied brakes and well there were none. traveled aboutg 15 feet and hit a brick wall. after some delay the engine now had some control as the brakes also did. waiting for towing instructions to get the car to garage. maximum speed was maybe 5mph | |||
| 02/12/2011 | 1000 | ||
| 2010 toyota prius--inconsistant braking and varying brake pedal pressure requirements. when braking, brake pedal travel distance varies. at times no brake action after pedal has been partially depressed requiring more brake pressure to re-engage brakes. sometimes occurs when gas engineswitches to electric or vice versa, other times inconsistent brake action occurs with either power source. frankly you never know how the brakes will perform. taken to dealer-i was told no problem found. they would not keep the car for days to continue tests. this is my fourth prius and this vehicle has more problems and concerns than all the others combined. | |||
| 02/15/2010 | 32204 | ||
| I have a 2010 prius, and when i apply the brakes at any intensity and my vehicle hits a defect in the road surface, the abs system seems to release brake pressure to all 4 wheels completely for about half a second. this makes me question the effectiveness of the brakes in an emergency situation, especially on houston's notoriously neglected roadways. i was told that this was normal by both toyota motor co. at 1-800-331-4331 and also by the dealer. tmc informed me that this is the way that the abs system was designed. please launch an inquisition and/or investigation into this matter, for the safety of the owners of all toyota prius vehicles | |||
| 01/23/2011 | 26000 | ||
| My 2010 prius' brakes did not respond while on the road on 1/22/11. then 2x again on 1/23/11. as a consumer, i do not know who regulates car companies but i have called the manufacturer and they need to 'duplicate' the problem. in the past, my brakes would accelerate before it would catch and the problem was not 'duplicated' by the dealer. this time the brakes failed me 3x within 24 hours and i am extremely concerned. i would like to know which government agency to report it to and what better options i have to get a resolution | |||
| 12/22/2010 | 30000 | ||
| Accident 12/22/10 turned left as i pulled into parking space nearest to handicapped spot. it was very sunny and there was a patch of what looked like ice. as the car went over that spot it started to accelerate. i applied the brake, only to find myself hitting the curb. after hitting the curb the car lurched over the curb and i continued applying the brake. in a fraction of a second my car was on the side walk, just before impact with the wall i took my foot off the brake because the car did not seem to be responding. i didn | |||
| 11/27/2010 | |||
| Tl-the contact owns a 2010 toyota prius. while stopped at a stop sign at night the vehicle was hit from the rear. the other vehicle left the scene of the accident. after the vehicle was hit it accelerated to a very high speed. the contact engaged the brakes and the vehicle continued to accelerate and he then attempted to turn the ignition off but that did not work, the vehicle continued to accelerating. the vehicle changed directions crossed over a grassy area and crossed over three lanes of traffic and crashed into a concrete median. she also stated that all the lights on the vehicle failed nothing worked. a police report was filed. one passenger had injuries to the chest, knee, ankle, ribs and back. the other passenger had a mild concussion, back and chest injuries. the vehicle was destroyed. the contact was unable to provide a vin. the failure and current mileage was unknown the contact stated they only had the vehicle two weeks. vwb | |||
| 01/10/2010 | |||
| The brakes release for a second or two when the car hits a bump, especially in cold or wet weather. my car has slid through intersections in the winter a number of times because of this. i have to start braking three blocks ahead in bad weather because i never know when the brakes will release. this is very dangerous. | |||
| 09/30/2010 | 17000 | ||
| Loss of braking effectiveness. happens when going over bumps while applying the brakes. you don't lose braking power completely, but it would be like you had lifted your foot off the brakes partially. it has happened about a dozen times since i have owned the vehicle (a little over a year). i am unable to determine what factors make it happen. i don't know if it is speed, severity of the bumps, or braking pressure, or combination. i know that temperature makes no difference, as it has happened in winter and summer. the last incident happened when a bicyclist moved in front of my car to avoid bumps. i applied the brakes (it was not severe), and as i went over the bumps, i lost braking power. my speed was approximately 15 mph. toyota has done a recall on the brakes, but i continue to have the problem. i have talked to other owners, and they are having the same problem, even after the recall. | |||
| 10/15/2010 | 16558 | ||
| Even after the brake recall repair has been performed, my car's brakes suddenly and momentarily lose braking power over uneven or rough surfaces. problem seems compounded when turning. | |||
| 09/30/2010 | 17000 | ||
| Loss of braking effectiveness. happens when going over bumps while applying the brakes. you don't lose braking power completely, but it would be like you had lifted your foot off the brakes partially. it has happened about a dozen times since i have owned the vehicle (a little over a year). i am unable to determine what factors make it happen. i don't know if it is speed, severity of the bumps, or braking pressure, or combination. i know that temperature makes no difference, as it has happened in winter and summer. the last incident happened when a bicyclist moved in front of my car to avoid bumps. i applied the brakes (it was not severe), and as i went over the bumps, i lost braking power. my speed was approximately 15 mph. toyota has done a recall on the brakes, but i continue to have the problem. i have talked to other owners, and they are having the same problem, even after the recall. | |||
| 10/15/2010 | 16558 | ||
| Even after the brake recall repair has been performed, my car's brakes suddenly and momentarily lose braking power over uneven or rough surfaces. problem seems compounded when turning. | |||
| 09/30/2010 | 17000 | ||
| Loss of braking effectiveness. happens when going over bumps while applying the brakes. you don't lose braking power completely, but it would be like you had lifted your foot off the brakes partially. it has happened about a dozen times since i have owned the vehicle (a little over a year). i am unable to determine what factors make it happen. i don't know if it is speed, severity of the bumps, or braking pressure, or combination. i know that temperature makes no difference, as it has happened in winter and summer. the last incident happened when a bicyclist moved in front of my car to avoid bumps. i applied the brakes (it was not severe), and as i went over the bumps, i lost braking power. my speed was approximately 15 mph. toyota has done a recall on the brakes, but i continue to have the problem. i have talked to other owners, and they are having the same problem, even after the recall. | |||
| 10/15/2010 | 16558 | ||
| Even after the brake recall repair has been performed, my car's brakes suddenly and momentarily lose braking power over uneven or rough surfaces. problem seems compounded when turning. | |||
| 09/30/2010 | 17000 | ||
| Loss of braking effectiveness. happens when going over bumps while applying the brakes. you don't lose braking power completely, but it would be like you had lifted your foot off the brakes partially. it has happened about a dozen times since i have owned the vehicle (a little over a year). i am unable to determine what factors make it happen. i don't know if it is speed, severity of the bumps, or braking pressure, or combination. i know that temperature makes no difference, as it has happened in winter and summer. the last incident happened when a bicyclist moved in front of my car to avoid bumps. i applied the brakes (it was not severe), and as i went over the bumps, i lost braking power. my speed was approximately 15 mph. toyota has done a recall on the brakes, but i continue to have the problem. i have talked to other owners, and they are having the same problem, even after the recall. | |||
| 10/15/2010 | 16558 | ||
| Even after the brake recall repair has been performed, my car's brakes suddenly and momentarily lose braking power over uneven or rough surfaces. problem seems compounded when turning. | |||
| 10/08/2010 | 2500 | ||
| On 2010 prius, brakes seem to release, generally for a moment, at low speeds when going over a bump on passenger side of the car. car seems to accellerate momentarily, until brakes are hit again. this has happened a number of times but is sometimes hard to recreate. car has 3000 miles. dealer says brakes operating as designed and recall adjustment has been made. | |||
| 03/15/2010 | 2250 | ||
| Despite the computer update following the recall my 2010 toyota prius continues to have braking problems. since the update the car accelerates slightly when an uneven road surface is encountered while braking. toyota says this is normal operation. | |||
| 08/19/2010 | 7548 | ||
| Brake failure. 2010 toyota prius iv -- the vehicle's brakes lose pressure and the break pedal loses pressure (regardless of how hard i press on the brakes as this is happening). the brakes are temporarily disabled and the vehicle unexpectedly accelerates as a result of its momentum prior to initializing the breaks. the failure occurs when the vehicle passes over a dramatic change in the texture/friction of the road surface. i have experienced the failure dozens of times, when driving over metal surfaces (manhole covers, pothole covers, temporary construction covers, metal expansion inserts in bridges, etc), as well as small patches of condensation (such as small puddles under a bridge when the surrounding road is dry). the failure is not related to hydroplaning, and has occurred at speeds as low as 15 mph. the failure causes the vehicle to accelerate until a few seconds after it has passed over the slick surface. after returning to the regular road surface, the brakes slowly regain traction and resume their function of slowing the vehicle down. this failure occurs every time these criteria are met -- regardless of whether road conditions are wet or dry. so far no accidents have resulted from this failure on my vehicle, but i have been unable to control the problem or decrease its effects. again, this problem occurs even at low speeds, such as in city traffic while braking to stop at an intersection. many times it has caused me to nearly hit the vehicle in front of mine. so i have been forced to leave an extra 40 feet between my vehicle and anything in front of me, which is not always feasible because i live in an urban area. i have already taken this vehicle into the toyota dealership as part of their recall to fix the software which controls the interactions between the hybrid brakes and the normal disk brakes. local dealerships have consistently denied that there is a problem with the vehicle and the toyota company will not return my phone calls. | |||
| 06/04/2010 | 1000 | ||
| Squealing noise from brakes/wheels when i press brakes on my brand new 2010 toyota prius. it's literally causing me headaches after drives and is a big health hazard. i have taken the car twice to my dealership that sold the car and they are recognizing the noise but telling that it is normal for all prius. if that's the case then it's a defect in prius as squealing noise that causes headaches should not be normal. also, i am not the only one facing this. please check hundreds of similar complaints on priuschatforums through link: http://priuschat.com/forums/gen-iii-2010-prius-main-forum/68563-squeaking-sound-wheels-during-rolling-start-brake-noise-merged.html | |||
| 08/22/2010 | |||
| 2010 toyota prius occasional loss of brake performance immediately upon start-up of vehicle. on 4 separate occasions, there was noted loss of braking capability after shifting into reverse immediately after turning on the ignition. this caused the brake pedal to feel hard, and allowed the car to slowly move against the operator's intentions. after about 5 seconds, the brakes begin to function normally. a toyota dealership told me it takes a few seconds for brake pressure to come up after starting the vehicle and that i should wait before shifting into gear. this instruction seems counteractive towards safety, and the vehicle should not be allowed to shift into gear until brake pressure is present. a simple software update should be able to address this concern. | |||
| 09/01/2009 | 100 | ||
| My 2010 toyota prius has always had problems breaking over bumpy roads. at certain speeds firm breaking over bumps causes the wheels to feel like they are slipping. toyota recalled the vehicle, and performed software upgrades that i feel did nothing to improve the situation. i recently brought the car back to be serviced and mentioned that it was still slipping over bumps but they claimed that they could not replicate the problem. this is not one specific incidence but multiple instances. | |||
| 08/19/2010 | 7548 | ||
| Brake failure. 2010 toyota prius iv -- the vehicle's brakes lose pressure and the break pedal loses pressure (regardless of how hard i press on the brakes as this is happening). the brakes are temporarily disabled and the vehicle unexpectedly accelerates as a result of its momentum prior to initializing the breaks. the failure occurs when the vehicle passes over a dramatic change in the texture/friction of the road surface. i have experienced the failure dozens of times, when driving over metal surfaces (manhole covers, pothole covers, temporary construction covers, metal expansion inserts in bridges, etc), as well as small patches of condensation (such as small puddles under a bridge when the surrounding road is dry). the failure is not related to hydroplaning, and has occurred at speeds as low as 15 mph. the failure causes the vehicle to accelerate until a few seconds after it has passed over the slick surface. after returning to the regular road surface, the brakes slowly regain traction and resume their function of slowing the vehicle down. this failure occurs every time these criteria are met -- regardless of whether road conditions are wet or dry. so far no accidents have resulted from this failure on my vehicle, but i have been unable to control the problem or decrease its effects. again, this problem occurs even at low speeds, such as in city traffic while braking to stop at an intersection. many times it has caused me to nearly hit the vehicle in front of mine. so i have been forced to leave an extra 40 feet between my vehicle and anything in front of me, which is not always feasible because i live in an urban area. i have already taken this vehicle into the toyota dealership as part of their recall to fix the software which controls the interactions between the hybrid brakes and the normal disk brakes. local dealerships have consistently denied that there is a problem with the vehicle and the toyota company will not return my phone calls. | |||
| 06/04/2010 | 1000 | ||
| Squealing noise from brakes/wheels when i press brakes on my brand new 2010 toyota prius. it's literally causing me headaches after drives and is a big health hazard. i have taken the car twice to my dealership that sold the car and they are recognizing the noise but telling that it is normal for all prius. if that's the case then it's a defect in prius as squealing noise that causes headaches should not be normal. also, i am not the only one facing this. please check hundreds of similar complaints on priuschatforums through link: http://priuschat.com/forums/gen-iii-2010-prius-main-forum/68563-squeaking-sound-wheels-during-rolling-start-brake-noise-merged.html | |||
| 08/22/2010 | |||
| 2010 toyota prius occasional loss of brake performance immediately upon start-up of vehicle. on 4 separate occasions, there was noted loss of braking capability after shifting into reverse immediately after turning on the ignition. this caused the brake pedal to feel hard, and allowed the car to slowly move against the operator's intentions. after about 5 seconds, the brakes begin to function normally. a toyota dealership told me it takes a few seconds for brake pressure to come up after starting the vehicle and that i should wait before shifting into gear. this instruction seems counteractive towards safety, and the vehicle should not be allowed to shift into gear until brake pressure is present. a simple software update should be able to address this concern. | |||
| 09/01/2009 | 100 | ||
| My 2010 toyota prius has always had problems breaking over bumpy roads. at certain speeds firm breaking over bumps causes the wheels to feel like they are slipping. toyota recalled the vehicle, and performed software upgrades that i feel did nothing to improve the situation. i recently brought the car back to be serviced and mentioned that it was still slipping over bumps but they claimed that they could not replicate the problem. this is not one specific incidence but multiple instances. | |||
| 06/04/2010 | 1000 | ||
| Squealing noise from brakes/wheels when i press brakes on my brand new 2010 toyota prius. it's literally causing me headaches after drives and is a big health hazard. i have taken the car twice to my dealership that sold the car and they are recognizing the noise but telling that it is normal for all prius. if that's the case then it's a defect in prius as squealing noise that causes headaches should not be normal. also, i am not the only one facing this. please check hundreds of similar complaints on priuschatforums through link: http://priuschat.com/forums/gen-iii-2010-prius-main-forum/68563-squeaking-sound-wheels-during-rolling-start-brake-noise-merged.html | |||
| 08/22/2010 | |||
| 2010 toyota prius occasional loss of brake performance immediately upon start-up of vehicle. on 4 separate occasions, there was noted loss of braking capability after shifting into reverse immediately after turning on the ignition. this caused the brake pedal to feel hard, and allowed the car to slowly move against the operator's intentions. after about 5 seconds, the brakes begin to function normally. a toyota dealership told me it takes a few seconds for brake pressure to come up after starting the vehicle and that i should wait before shifting into gear. this instruction seems counteractive towards safety, and the vehicle should not be allowed to shift into gear until brake pressure is present. a simple software update should be able to address this concern. | |||
| 09/01/2009 | 100 | ||
| My 2010 toyota prius has always had problems breaking over bumpy roads. at certain speeds firm breaking over bumps causes the wheels to feel like they are slipping. toyota recalled the vehicle, and performed software upgrades that i feel did nothing to improve the situation. i recently brought the car back to be serviced and mentioned that it was still slipping over bumps but they claimed that they could not replicate the problem. this is not one specific incidence but multiple instances. | |||
| 06/04/2010 | 1000 | ||
| Squealing noise from brakes/wheels when i press brakes on my brand new 2010 toyota prius. it's literally causing me headaches after drives and is a big health hazard. i have taken the car twice to my dealership that sold the car and they are recognizing the noise but telling that it is normal for all prius. if that's the case then it's a defect in prius as squealing noise that causes headaches should not be normal. also, i am not the only one facing this. please check hundreds of similar complaints on priuschatforums through link: http://priuschat.com/forums/gen-iii-2010-prius-main-forum/68563-squeaking-sound-wheels-during-rolling-start-brake-noise-merged.html | |||
| 08/22/2010 | |||
| 2010 toyota prius occasional loss of brake performance immediately upon start-up of vehicle. on 4 separate occasions, there was noted loss of braking capability after shifting into reverse immediately after turning on the ignition. this caused the brake pedal to feel hard, and allowed the car to slowly move against the operator's intentions. after about 5 seconds, the brakes begin to function normally. a toyota dealership told me it takes a few seconds for brake pressure to come up after starting the vehicle and that i should wait before shifting into gear. this instruction seems counteractive towards safety, and the vehicle should not be allowed to shift into gear until brake pressure is present. a simple software update should be able to address this concern. | |||
| 09/01/2009 | 100 | ||
| My 2010 toyota prius has always had problems breaking over bumpy roads. at certain speeds firm breaking over bumps causes the wheels to feel like they are slipping. toyota recalled the vehicle, and performed software upgrades that i feel did nothing to improve the situation. i recently brought the car back to be serviced and mentioned that it was still slipping over bumps but they claimed that they could not replicate the problem. this is not one specific incidence but multiple instances. | |||
| 08/11/2010 | |||
| 2010 prius when attempting to stop if vehicle hits bumps, potholes, manholes, etc., the vehicle braking systems lets go for a moment and the vehicle will keep moving forward. i have had my prius into my service department for the recall but the problem continues. my service department has been in contact with toyota who tells them it is a characteristic of the vehicle and to advise owner of such. this is a clear safety issue with the vehicle. my family will not drive the car and my friends won't get in the car because of this problem. i was told to either live with the vehicle or trade it in. not an acceptable answer in my book. this can happen with the vehicle 5 or more times a day depending on where i am driving. | |||
| 06/26/2010 | 100 | ||
| While braking and the car is slowing down to below about 10 miles an hour, it will surge ahead if it goes over rough pavement or a bump. the abs recall has been performed on the car, and it was brought back into the dealer after the recall and the dealer confirmed that the recall was applied. the dealer claims that this behavior is normal. the car has been back to the dealer two times so far. | |||
| 06/13/2010 | |||
| Like all other 2010 prius complaints, when i apply the brakes and go over a bumpy surface, the brakes release causing the car to jolt forward. i took my 2010 toyota prius in to the dealer due to the recall. the service manager stated my car would be fixed in less than thirty minutes. whatever they were supposed to do to fix the brake problem did not happen or did not work. my car still jolts forward when i am pressing on the brakes and i hit a bumpy surface. i am scared for my own safety. in addition, i cannot help but wonder what this problem does to my tires. i have had the car since july 2009 and have gotten two flat tires in the past 11 months! i have put so much time and money in to this car, and i haven't even had it for a full year. | |||
| 06/08/2010 | 80 | ||
| We purchased a 2010 prius in may 2010. my wife drove the car out of a shopping mall driveway into the left hand turn of the road and pulled up behind a truck. she was traveling about 5-10 mph on a normal road, no pot holes or wet conditions. she had her foot rammed to the floor but no brakes! she went into the back of the truck, causing extensive damage to the front of the car and windscreen. she had two children in the back with her. seems like they have not fixed the problem! we were told by dealership that there were no problems and that every car on the lot had been fixed! not repaired yet. not sure i want it back. | |||
| 03/10/2010 | 1000 | ||
| Severe brake grab in slow speed reverse or forward. very intermittent. research shows same complaint found in numerous complaints on the nhtsa site.dealer and toyota unaware and were of no help in resolution | |||
| 04/10/2010 | 7000 | ||
| I own a 2010 toyota prius. i was having braking issues before the safety recall. it would accelerate when i hit a bump while braking. i told brought my vehicle in for the first day of the recall and it was fixed. now the problem is back. my car suddenly accelerates when i'm slowing down/braking and hit a bump. | |||
| 11/01/2009 | 500 | ||
| 2010 prius accelerates while braking and surges in acceleration from a stop while accelerating slowly. many but not all occasions were while going over bumps and/or wet road. this has happened several times since owning the car. toyota cannot duplicate the problem in the testing and denies that it is real. it has been brought into toyota for repairs but the problem persists. the car is now parked and we will not drive it as it is not safe. we filed a lemon law claim (ca) and toyota has denied the claim with a form type letter. | |||
| 05/31/2010 | 9800 | ||
| My 2010 toyota prius continues to experience the momentary loss of braking power even after the recall fix was applied back in march. i experience the same loss of braking power as i did in the past when going over bumps, pot holes and the like, especially when hitting the brake on a decline. i brought my car back to the dealership and a field tech specialist was unable to reproduce the problem - but i have experienced it a half dozen times since the recall and have notified toyota's hq - they have not responded. i continue to feel as if pedestrian, other driver, and my own safety are at risk with this continued brake issue that toyota cannot seem to fix. | |||
| 04/14/2010 | 8400 | ||
| 2010 prius engine accelerates when braking over bumps/gravel. brought car back to toyota dealer for recall modification and problem still exists, in fact, seems worse. | |||
| 05/25/2010 | 9500 | ||
| I had the toyota prius reflash done on my car. since this reflash i have had multiple instances of the brake surge. the most recent incident was yesterday. i was driving down a road going about 25 mph. i noticed an upcoming stop sign and a small dip in the road. i engaged the brakes and slowed to about 10 mph. upon hitting the dip the car surged forward toward the stop sign and intersection. despite applying even and steady pressure to the brake, the car suddenly surged forward on its own accord. we have had multiple instances since the 'fix' by toyota. we tried arbitration to resolve the issue, but we have been ignored. i am concerned that a future surge will inevitably lead to an accident. this is a definite safety concern that must be addressed! | |||
| 05/16/2010 | 1000 | ||
| Brake failure occurred when vehicle was coming off freeway exit ramp at approximately 40 mph on uneven, curvy road. while approaching intersection from several hundred feet away, brakes failed to engage for about a second; also felt the vehicle lurch forward in that lapse of time. repeated pressure on the brakes finally brought car to stop but not in time to prevent collision with incoming pickup truck on straightaway traffic. police arrived at scene but did not file report because nobody was injured. body shop estimated damage on front bumper at $1500. vehicle was brought in to dealer on 05/18/2010 for inspection. service manager said ecu brake recall had been conducted on said vehicle in february 2010 at different dealership. currently still awaiting on conclusive report from toyota engineers. car only has 1000 miles on odometer. brake failure has been experienced some ten times in the 2 months of owning this vehicle, usually during higher speeds over uneven road. came close to accidents on three instances, not including this actual one. this is a serious safety defect that could result in fatalities. please investigate! | |||
| 04/29/2010 | 6000 | ||
| I have a 2010 toyota prius and i received the software recall for the braking system. after receiving the software recall my wife and i have both noticed that there are instances when the brakes do not respond as quickly as they should which is similar to the original reason the prius was recalled. | |||
| 05/07/2010 | 6700 | ||
| I continue to have a loss of braking when traveling over bumpy surfaces, even after receiving the softward upgrade that was released by toyota. this is especially troubling when i am traveling over an extended area of bumpy road, and the brakes won't work as expected. | |||
| 02/13/2010 | 7000 | ||
| 2/13, the day after my car was fixed under the recall, my brakes failed. i was on the way to the airport, and the brakes failed . when i returned home from my trip, i brought it in to toyota kearny mesa in san diego, who found nothing wrong. my brakes failed again a week ago. i was dricing on a smooth road, slowing down for a light, when suddenly the car speeded up and i went stright though the red light. no cars were nearby, so i did not crash and no one was hurt. again, toyota found nothing wrong. they tell me that they can't fix it unless they can replicate the problem. they want me to return the loaner car tomorrow morning and drive home with my prius and i'm scared. | |||
| 04/16/2010 | 1000 | ||
| In my 2010 prius i have had two incidence with my brake when starting out in reverse. first time was in my driveway, don't remember how long i was in the car until my girlfriend got in.. but when i put it into reverse i got astiff feeling in the pedal and it felt like it wouldn't go down all the way... the car seemed to accelerate back faster than expected when i lifted my foot off the brake.... i lifted my foot and put the brake down and i stopped very quickly (as if i was slamming on the brakes) i then took my foot off and reapplied a few times and the pedal felt fine. we then drove to the local market.. i sat in the car with the acc mode on for about 5-8 minutes while she went in... when she came out i started the car, went to back up and the same thing happened.... this was very disconcerting in a crowded lot with lots of people walking in close proximity to the cars.... i believe i just hit the park button... then reapplied the brake (which now felt normal) and i haven't had the issue since.... this issue has been discussed in prius formus at length and there is a very consistent theme to the incidents that toyota should explore and deal with. | |||
| 04/20/2010 | 15000 | ||
| I have a toyota prius and it has been recalled about the brakes. i sent it in to have the brakes fixed, but i am still having problems. when ever i start to stop the car and there are bumps in the road the car seems to excelerate or the brakes release. it only happens if there is bumps in the road. the car will not stop when it hits the bumps. what should i do? | |||
| 04/19/2010 | 431 | ||
| Braking issue - 2010 toyota prius. we purchased a 2010 prius last week, asked the dealership if any/all recall work had been completed and were told 'yes.' yet, i believe that the dealership misrepresented the facts - both my husband and i have experienced temporary loss of braking in our new 2010 prius while going over rough patches in the road and over speed bumps/traffic calming bumps. we both doubt that the abs recall work was actually done before we took possession of the car last week, so we're taking it back to the dealership today. i am not afraid to buy a toyota and understand that other car manufacturers have experienced quality issues resulting in recalls, but i am very upset that we asked about the recall work and still ended up with a car with braking issues. i don't want to drive a potentially unsafe vehicle. | |||
| 04/16/2010 | 6419 | ||
| 2010 toyota prius surge while braking over bumpy road surface...i brought my car in for the recall mod and the problem seems worse than ever!! what gives?? | |||
| 04/15/2010 | 10000 | ||
| I own a 2010 prius. i received a recall notice and took it in to the dealer for repair. nevertheless, even after the alleged repair, problems still happen while braking. specifically, if i hit a bump or a pothole while braking, the car surges forward. i would say this happens to me multiple times per week. | |||
| 04/09/2010 | 970 | ||
| I have a new 2010 prius with less than 1k miles. on 4-9-10 while pulling into a parking spot i experienced a simultaneous loss of braking combined with unintended surge of acceleration. my prius jumped the curb that was perpendicular to the parking slot and stopped as it slammed into a brick building about 8 feet beyond the curb. i utilized my safety connect button to record the time of the accident and had the vehicle towed to the dealer. i contacted toyota customer experience center and now have a case #. i was told that someone would contact me within 2 business days. i am not at all comforted by this very scary incident. i would just like to have my 2005 prius back as i never had any problems with it. i am seeing that my problem is not unique based on many similar problems on this nhtsa complaint site. | |||
| 03/01/2010 | 3500 | ||
| 1. brakes disengaged on two separate occasions while braking to a red light and went over uneven pavement. 2. car is parked in garage. in the morning i went to start the car and upon pushing the start button the car started violanting shaking and making a clanking noise. i immediately turned car off as this was not a normal occurence. i pushed the start button again and car started normally. 3. on 4/1/10 took car to toyota of orange for recall fix of the brakes. on 4/2 while pulling up to a street from a parking lot the brakes disengaged. the asphalt was very bumpy in the parking lot. i was on a slight decline. the brakes disengaged and car lurched forward. it was worse than the other two times. it was scary. if there was a car in front of me i would have hit them. | |||
| 04/06/2010 | 15045 | ||
| Although i took my vehicle in for the recall (2010 prius) last week, the vehicle repeated the loss of brake/surge issue this morning. i also reported to my toyota dealer last week about abnormal, sudden braking. when applying normal pressure to the brakes, on several ocassions the brakes have locked violently, sending me and my passengers against our seat belts. toyota claimed that the recall may make that better. it has not. thirdly, i reported last week to toyota that the car has on ocassion shaken violently and made a loud clanking noise (like a washing machine off balance) upon start up, causing me to jump out f the car for fear of it blowing up. they said they had never heard of this. my co-worker, a fellow 2010 prius owner, reported the same issue. | |||
| 04/04/2010 | 14000 | ||
| I have a 2010 toyota prius that was recalled and repaired in march 2010. on april 4, 2010 i was driving the car with my wife and was under normal braking conditions when i pressed the brakes and they acted like they were anti-lock. the petal skipped and went to the floor. it was so noticable that my wife asked what just occurred and i told her the brakes failed for a second. i was at about 20-30 miles per hour when this occurred coming up to a stop light. again the car was taken in for the recall prior to this | |||
| 04/03/2010 | 9000 | ||
| Despite having had the brake recall item fixed on my 2010 toyota prius, i continue to experience instances when i depress the brake and the car skids from side to side with a sensation that the end of the car is literally lifting off the ground. this has happened to me multiple times and toyota has told me that the recall fixed any concerns, so there shouldn't be anything wrong. on one occasion when this happened my vehicle actually bumped into a fixed object, causing damage to the front bumper. i purchased this car based on toyota's reputation and am now so mistrustful of it that i hesitate to put my family in it. as a consumer i strongly feel that i and all owners of 2010 prius' should have the right to opt to return our vehicles to toyota and have the opportunity to select a different new or used vehicle of the same price for what we paid for our cars. the proven concerns about the 2010 prius should be enough for the nhtsa to put pressure on toyota to allow for some type of restitution. it is not as simple as just trading in the car at any random dealer because the reputation of these cars has severely lowered the market value. toyota's errors should not be permitted to have a financial impact on those consumers who purchased their cars. i would be happy to allow nhtsa to test my vehicle for a short period of time if it would help in the research of this problem. | |||
| 03/29/2010 | 6762 | ||
| Abs brakes fail to engage when one of the front tires hits pot hole / slippery bumpy surface. the car surges forward during braking before braking resumes. the recall and fix toyoto impimented on my car on 2/15 did not address the issue, it only shortened to lag time (period of exceleration - surge forward). the issue still exists and is still a dangerous safety hazard. i reported this to the dealer in smithtown, ny who contacted toyota factory and they advised the dealer, who advised me that the car operates as per specifiation. the dealer and the factory did not even look at my car! i demanded a work order which they gave me stating car to be brought back after toyota is contacted adn advises dealer on the condition. the next day the dealer called me to say totota advised the car is working as per spec. toyota refuses to address this issue and the dealer will not look at the car. this is a safety hazzard that i should not have to be subjected to. please contact me. thank you doreen gebbia, nesconset, ny | |||
| 03/30/2010 | 10103 | ||
| I purchased my 2010 prius back in july of 2009 and had problems stopping the car when applying the brake over a bump or a pot hole on the road. the car would accelerate for a second before coming to a full stop. when there was voluntary recall, for me it was mandatory because this was a serious issue because if there would have been a car in front of me, or if this was close to an intersection and pedestrians, who knows what could happen. i took it to the dealership to get the recall. they told me it is some software update. after getting the vehicle serviced, i took it for a test drive and noticed slight improvement in the response when applying the brake pedal. but this morning as i was applying my brake heading towards the intersection to make a turn, i hit a pot hole and the accelerated again and i had to quickly maneuver the vehicle to avoid collision with the car in front of me. whatever they did with the recall did not resolve the brake problems. | |||
| 03/14/2010 | 6500 | ||
| The brake fix on my 2010 toyota prius did not solve the problem with the brakes releasing under certain conditions. i experienced the problem 3 times before the fix and 2 times after. the only way i could reproduce the problem was while braking on a snow covered road. since having my car repaired under toyota's recall program, i had the brakes release once on wet roads (3/14) and once on ice (3/25). | |||
| 03/19/2010 | 16250 | ||
| Recall on toyota prius (2010), did not receive recall notice until after returned to dealer for recall, service performed, still has same issue, returned to dealer ron hibbard toyota 3/23/10, mechanic stated they have done all they can do, milage, date, and speed at time of incidents are approx. same issue occurred 2 times since recall service | |||
| 12/28/2009 | 350 | ||
| On 12/28/09 at aprox. 6:30 a m, while driving my 2010 toyota prius, i attempted to stop on a rough ice/snow packed surface. i was traveling at about 5 mph. the vehicle slid for about 20 to 25 feet before crashing into a snow bank. the abs did not operate, as i never felt the distinct pulsating in the brake pedal. the vehicle seemed to actually loose all breaking power for a instant and surge forward. no other vehicles were involved and no one was injured. the front bumper was damaged and the vehicle was repaired for about $1,400. after the vehicle was repaired, while driving over rough surfaces, at times, i noticed that the brakes did not stop properly. at that time, there was no recall for the 2010 prius brakes. it feels as if the brakes stop working for an instant and the vehicle surges forward. i even remarked to my wife, while driving, that the braked did not feel right when stopping sometimes. there has since been a recall for the 2010 prius brakes. my prius is now at the toyota dealership where the brake recall will be preformed. i have been driving over 38 years and have a very good driving record. it is my opinion, that the accident would not have occurred had the brakes in my 2010 prius been working properly. | |||
| 03/20/2010 | 6600 | ||
| The recall repair to the brake system on my toyota 2010 prius did not fix the intermittant brake failure that is the focus of the prius recall. dealer installed fix twice but the delay in braking and feeling of additional torque when braking on rough and/or wet pavement still occours. | |||
| 11/15/2009 | 6000 | ||
| Prius 2010 brake disfunction. filled out report to nhsta appx 3 months ago but was notified case was closed a few days later, no reason was given for closure. will someone please follow up on this issue. | |||
| 03/22/2010 | 10624 | ||
| On my drive home from the toyota dealership after having the abs brake fix recall fix applied, i applied my brakes to slow down for a speed bump and while the car rolled over the speed bump the brakes slipped and the car seemed to surge forward. please note this is immediately after the car received the brake recall fix. | |||
| 03/23/2010 | 10060 | ||
| 2010 toyota pirius issue with brakes. i received a recall notice, brought it to dealer, they supposedly fixed the problem. the recall did not correct the problem. there is still an issue with the brakes. if you have to brake on an uneven surface the car does not respond immediately. it seems to float or glide over bump before the brake catches. it is a constant cause of aniexty while driving. extremely dangerous because you can crash into car in front of you especially when city driving as i do when i commute to and from work each day. | |||
| 03/13/2010 | 4500 | ||
| I was driving down laurel canyon in los angeles, i hit my brakes, they accelerated and i hit the car in front of me. i did have the code in my 2010 prius fixed however there were still some minor acceleration problems and i was so annoyed that i didn't say anything. however now i have ran into the car in front of me. | |||
| 03/18/2010 | 4600 | ||
| I leased a 2010 toyota prius in december. immediately uopn leaving the dealership i noticed that the vehicle's brakes do not hold when you hit a bump/pothole. in fact, the car shoots forward and you must be prepared. i filled out the on-line form for toyota customer service to go on record with them i had the recall software upgrade installed 3 weeks ago, and while the problem is much less severe, the upgrade fix does not fully correct this issue. this morning, my vehicle's brakes did not hold when i was braking to drive over a bump in the road at 20mph. i have had a few more minor occurrences, but today was noticeable. | |||
| 03/01/2010 | 12000 | ||
| Braking issues in my 2010 toyota prius- after recall fix | |||
| 03/16/2010 | 5800 | ||
| I was driving on the freeway with my cruise control on. it was set to 56 mph. all of a sudden, the vehicle started lurching. it was like it was trying to accelerate then slow down, then accelerate, then slow down. i immediately shut off the cruise control. it has also happened again today when i tried to use the cruise control. | |||
| 03/17/2010 | 9000 | ||
| I bought a 2010 prius in june 2009. shortly after getting the car i noticed that it seemed to slip when i was driving slowly over uneven surfaces (railroad tracks, uneven road surfaces, utility covers). when the recall was announced i realized the slip i was feeling was the brakes not working momentarily. i went to a dealer and the car was serviced. however, i have continued to experience this issue even after the supposed fix. | |||
| 03/17/2010 | 6000 | ||
| I had my 2010 toyota prius serviced in order to address a loss of brake power when braking while going over a bump. after the servicing the problem has continued. it is a brief event but concerns me as when it happens it feels momentarily as though the car is speeding up. | |||
| 03/17/2010 | 4220 | ||
| I have been having two issues with the 2010 prius since i bought it on 29th dec 2009. 1. unable to stop and sudden accelration when hitting rough /uneven road condition and trying to stop and control the vehicle. 2. unable to stop some times when drive at city speed limit and going between slow and stop and slow and fast and slow kind of driving, sometime when pressing brake, instead of deacclerating it start to accelrate and takes longer to stop. i have already been to toyota dealship 3 times overthis issue. first time they fixed brake issue. second time it was recall that they told will fix the problem i am having. 3rd time they said they can reproduce the problem. but i know i feel the issue sometime. and i can not just leave the car with them for days to investigate and i can change my driving pattern or behaviour either for this car. | |||
| 03/10/2010 | 4500 | ||
| I have a 2010 toyota prius that has had the software update recall performed. since having the recall done, the brakes on the car seem to work even worse than before. it still occasionally feels as though the brakes are slipping while going over a bump, and the brakes also do not seem to work as well under normal operation. | |||
| 03/17/2010 | 200 | ||
| My 2010 toyota prius has had a defect that i noticed after purchase. every time i brake, when i hit a bump, my car accelerates. there was a recall in which we participated on march 15, 2010 however it did not correct the problem. we are extremely dissatisfied and fearful of the possible danger it could bring to our family and children. | |||
| 03/12/2010 | 4930 | 1 | |
| I brought my 2010 prius to service the recalled brake software issue. previous to this, i noticed braking problems when on slippery and/or bumpy roads where the brakes would 'stop braking' for 1-2 seconds, and give a feeling that the car was lunging forward when attempting to decelerate. i brought the car in to have the brake software upgraded. on march 12th i was driving on wet roads, with some potholes, it was fairly bumpy. i slowed the car as usual and near the stoplight the car failed to decelerate for 1-2 seconds, and i thought i was going to crash into the car in front of me. after 1-2 seconds the brakes caught again and i had to slow down much much faster to avoid hitting the vehicle in front. my concern is that the brake software upgrade did not fix the problem, and i continue to be at risk. *tr | |||
| 03/13/2010 | 5 | ||
| My prior prius was repurchased by toyota 09/09 with severe electrical issues which only escalated. i believe the man in ca because that happened to us on the highway, and our car behaved as if it were 'possessed'. now my 2010 is having intermittent issues, including an anti-skid/ braking light that we'd thought was remedied by resetting an abs actuator friday-it was on since test driving the car-but i was told many excuses, and eventually they were aware but did not know how to correct this. (?) i'm concerned about driving this vehicle as my 2007 trapped us in the car twice-911 called in a panic-plus my small daughter's safety was at risk just by owning that crazy car. please see if you can locate that car and inspect it-you will see this is not some chance situation-and now i am extremely concerned about our new car 'performing as designed' when brake warning light comes on when applied! feel free contacting me on this!! | |||
| 03/12/2010 | 4250 | 1 | |
| While driving on a residential street at approximately 25 to 30mph, i put on brakes for a speed bump and my 2010 prius lost brake power for a (very short) period of time. this same event happened on 3 separate occasions from november of 2009 to the past week. in all cases the street was dry and the car was traveling at or below the speed limit. one occurrence was as described above and the other two we on somewhat of a rough spot in the road. *tr | |||
| 03/05/2010 | 800 | 1 | |
| Purchased 2010 prius on aug ll,09. have returned to dealer 5 times, beginning on sept.29, 09, to report same problem...which is that at random times when i shift from p to either d or r, the vehicle lunges and when i apply the brake, it is like hitting a brick wall. this process is repeated several times in sequence...lunge, brake, lunge, brake..then it corrects itself and drives normally. i cannot predict when this will occur, sometimes it is weeks and hundreds of miles between occurrences; sometimes only a few miles and hours between incidents. the dealer always says they have not been able to reproduce the problem, therefore no diagnosis or repair. i have reported to toyota customer ser. and was assigned a case #. have had ongoing conversation with tcs rep to report this and several other problems, i.e. various warning lights at inappropriate times...key detected in vehicle while driving down the road... etc. am always told scan shows no problems. i think there is a problem with electronics. unsafe, frightening. latest incident on 3/05/10. dealer installed software fix for brake recall on 2/10/10. at times must repeatedly move gear shift lever before it responds. *tr | |||
| 02/01/2010 | 3200 | 1 | |
| On feb 1, 2010, i was approaching a stop light intersection at about 7 mph. when applying the brakes it was like stepping on a solid steel pole or ice skates. the pedal would not depress and the brakes would not engage. i released brake pressure and again pressed the pedal and then the brakes operated satisfactorily. the street was smooth asphalt, dry and in good condition without bumps. on feb 28, 2010 the dealer (lake city toyota) accepted the vehicle and performed the service campaign aob abs actuator ecu update. *tr | |||
| 02/10/2010 | 1500 | 1 | |
| 2010 toyota prius gave me in two different occasions the feeling that the brake was not working. in both cases i was driving slow and traction control light came on. in one case i was backing up from my garage; in the other case i was transitioning from a small downhill exit to a flat street. *tr | |||
| 03/03/2010 | 2500 | 1 | |
| When braking, all of a sudden the car lurches for a second or so, as if on ice. this happened 3 times in different circumstances, once not related to a pothole. toyota dealer in avon ct applied the correction to the software, and the next week (last week) the same thing happened again, when i hit a wide, but not deep pothole while braking, just before stopping at the end of a highway exit ramp. in this situation, it was fortunate that no car was in front of me at the light. additionally i had a problem with sudden acceleration a couple times when driving at slow speed. *tr | |||
| 03/09/2010 | 13642 | 1 | |
| I just picked up my 2010 toyota prius from the dealership for the second time since the brake recall. this is the third time my prius has been in for service on my brakes. they performed the recall and keep telling me that my car is functioning properly and that all hybrids brake this way. i will admit my prius stops quicker than before than the recall however i still notice that it surges forward before the care stops at times. in the 2 weeks i had the car back after they performed the recall i and my husband noticed that the brakes still surged forward before stopping. i picked up my car today and i noticed it again on my way home. what is it going to take to get this car fixed properly? i do not feel safe driving it around, and i have young children. i want someone to look into why these recalls are making the problem alittle better but not fixing the problem. if toyota does not know how to fix it then maybe they need to buy these unreliable death traps back from their consumers and stop feeding us a line about how this is normal and all hybrids do this. *tr | |||
| 03/02/2010 | 3154 | 1 | |
| Brake problem with 2010 prius. i was crossing a pothole on street and put the brake on before the front wheels get into there. while the front wheels enter the hole, i felt my car suddenly lost braking and speed up. it lasted for less than 1 sec. i guess. then, everything was normal. *tr | |||
| 03/03/2010 | 1080 | 1 | |
| I have a 2010 prius which i took to champion toyota in houston for the recall repair on february 12. according to them they performed the brake recall software repair. however, on 3/3 when i was driving home from work i experienced the brake failure problem again. *tr | |||
| 03/01/2010 | 1 | ||
| Driving 2010 toyota prius. seemed to have 'skipped' forward while gentle braking over bumpy road (small bumps). car had allegedly had electric repair to abs for the prius, however; will take to another dealer to confirm. i realize there are privacy concerns as an owner, and i'm not looking to put emphasis on myself, however; after supposed repairs to the brake system i am worried that the electronic update to the prius 2010 was not sufficient. the slight 'jolt' that i felt made me think initially i was bumped in the back of my car. thanks again for investigating this. *tr | |||
| 03/03/2010 | 1400 | 1 | |
| Toyota prius 2010 abs software update does not fix the issue - abs turns off and vehicle accelerates when braking and i hit a bump - software update was performed on 2/12/2010. *tr | |||
| 03/03/2010 | 5600 | 1 | |
| 1. on friday, february 26th, 2010 i had my 2010 prius fixed at a toyota dealership for the brake/acceleration recall. i had experienced braking/acceleration issues only 3 times in 5 months of owning the vehicle before having it recalled. 2. in the last 2 days i have experienced the braking/acceleration problem twice. the problem seems to have gotten worse. essentially what occurs is a sudden jerking forward of the car, whether or not the braking system is depressed, typically when going over rough terrain or uneven pavement. i occurred both times at relatively low speeds between 10-20 miles an hour and the acceleration lasted only a second or 2, but is very alarming, especially if a car is in front of you. *tr | |||
| 03/03/2010 | 17300 | 1 | |
| I took my 2010 toyota prius into the dealer to fix the braking problem; however, i am still experiencing the problem on a daily basis. i called the dealership, and they were uncertain as how to help. i'm very concerned that i will crash into someone or go through an intersection because of the release of the brake. *tr | |||
| 02/27/2010 | 6833 | 1 | |
| I experience the brake failure on prius 2010, i took the car in the dealer to fix it but dealer told me that the firmware already up to date on my car. *tr | |||
| 03/01/2010 | 6800 | 1 | |
| I own a 2010 toyota prius and have had my car in for service to address the brake recall. however, today i drove over a pothole and the symptom of the recall (loss of braking power) occurred. this has happened one other time in the past few days since i have brought my car in for the recall service. the service appears not to have addressed the problem. *tr | |||
| 10/01/2009 | 750 | 1 | |
| Brake failure when driving at slow speeds over bumpy surface. 2010 toyota prius. *tr | |||
| 02/20/2010 | 9600 | 1 | |
| Driving my 2010 prius towards a traffic light. light turns from orange to red and i brake in plenty of time. small pothole just as i stop makes the car's brake slip and i shoot forward several feet. i now understand what the braking problem is people have been talking about. *tr | |||
| 02/24/2010 | 5120 | 1 | |
| We bought a 2010 prius last july. since buying the prius we have had the brakes completely stop working, during braking after driving over a small bumps (manhole cover, disturbed pavement, small pothole). this has now happened around 10 times. fortunately, after completely releasing the brakes would again brake after applying increased pressure on the brake pedal. most recently the braking failure occurred the day immediately following having the 'brake recall maintenance performed by toyota to correct the braking problem. the fix is obviously not correcting the problem. this is a major safety concern. the brakes once gave out while approaching a pedestrian in a crosswalk. it is only a matter of time before someone is seriously injured or worse. please help. what should i do now? *tr | |||
| 02/24/2010 | 1750 | 1 | |
| I bought a 2010 prius in november of 2009. i soon discovered that the car would not brake properly and a couple of months later heard about this issue on the news. i brought my car in for the recall and a software patch was applied to the car to rectify the situation. that was 5 days ago. upon leaving the dealership, the car did feel better; the brakes did not feel as sensitive. however, in the past five days i have experienced the same exact sensation of the car not braking when i have been riding over a rough patch of road at a speed of less than 30 mph. but it's not just a feeling. the car surges forward momentarily. it almost feels like i am skidding on ice. i do not feel safe in this vehicle despite the fact that the folks at my toyota dealership said this problem was not a safety issue. i disagree. i am afraid that i will lose braking ability and hit something or someone or end up in an intersection involuntarily. i have a five year old daughter. i really want my money back. i would never have purchased this car if i had known it had faulty brakes. i feel burned by toyota. *tr | |||
| 02/19/2010 | 3129 | 1 | |
| 2010 toyota prius: had the car for several months and really enjoy driving it...okay, i like the mileage, it's not a corvette though. have noticed on rough pavement and potholes that the brakes do seem to give a little. however on 19 feb 10 i hit the brakes to stop and it felt like the simply made a grinding sound and barely slowed at all...the harder i pressed the less the seemed to apply. these cars are dangerous and should be removed from the roads until toyota fixes this and proves the problem is corrected...i will not drive it until they do so... *tr | |||
| 02/22/2010 | 6000 | 1 | |
| When i am driving my toyota prius 2010 and the vehicle goes over a bump or hole in the road the vehicle jumps especially is i am braking to slow the vehicle down. *tr | |||
| 02/05/2010 | 2300 | 1 | |
| Brake failure on 2010 prius in snowy conditions. i was driving with my 11 year old daughter going less than 10 miles per hour approaching a busy intersection. the brakes would not engage and i could not stop before entering the intersection. i was almost hit by a bus. the bus saw me and sped up thus avoiding a tragedy. also, the other oncoming traffic was able to stop and avoid me. my daughter and i were very fortunate. i am horrified and want this corrected. *tr | |||
| 02/15/2010 | 8750 | 1 | |
| I was bringing my 2010 prius to a stop at a stopsign on e bound mlk drive in san francisco's golden gate park the eve of 2/15/10. the pavement was bumpy, and the brakes skipped for a half-second. i was able to bring the car to a safe and complete stop without hazard, except for a momentary jump in my heart rate. *tr | |||
| 01/16/2010 | 5000 | 1 | |
| I was driving my 2010 toyota prius on a snow covered, rough residential street. while turning into a driveway to turn around to grab a parking spot, i applied the brakes and they completely released and i slammed to the snow piled at the entrance to the driveway. the front bumper cover got a hole punched into it the size of a baseball from the frozen snow. since then the brakes have released without incident but not without concern. i called and reported the problem to my toyota dealer and he asked do i have an error showing up on the dash screen and i said no. i asked was there a new updated program and he said he did not know anything about it and they don't have a fix anyway. this was before the car was recalled by a couple of weeks but after toyota had started loading a different program onto the car. on feb. 17, 2010 toyota did flash the car's computer to fix the program issues. i would like toyota to have the front bumper cover repaired. thanks. *tr | |||
| 12/02/2009 | 3600 | 10 | |
| Intermittently, while i am braking when approaching an intersection the car will momentarily accelerate quickly. with pressure on the brake the car then slows. this has happened about 6 -10 times since i bought the car in sept. 2009. *tr | |||
| 01/10/2010 | 2200 | 1 | |
| Anti lock brakes do not work properly car jumps when hitting an uneven roadway when appling brakes. *tr | |||
| 02/12/2010 | 5020 | 1 | |
| My 2010 prius has experienced the braking issue when going over a bump or a pothole. *tr | |||
| 01/02/2010 | 500 | 1 | |
| I own a 2010 toyota prius. i have experienced some dangerous occurrences while driving. 1) occasional loss of traction (for a second+-). problem has occurred aug, 2009 - present. usually occurs when heading downhill or when driving over a manhole or drainage cover. car feels as if slipping or airborne for a moment.. 2) frequently immediately after starting car, at slow speeds of only 0-5 mph, car is jerky each time brake is applied. problem has occurred aug, 2009 - present. passengers are actually jerked, as if driver was applying brakes too suddenly. even with great attempt to stop smoothly and gradually, it is impossible. brakes grab and jerk. this occurs both in reverse and forward, yet not every time engine is started. it lasts for only a minute or so, but makes maneuvering while parking or entering traffic unsafe, as well as making driver look inept. i cannot figure out if this is a braking or acceleration problem. when calling a toyota dealer (nov, 2009), i was told they had no similar reports of these problems and offered no solution. my concern has increased with the recent recalls when calling a toyota dealer previously, i was told they had no similar reports of these problems. my concern has increased with the recent recalls. *tr | |||
| 09/15/2009 | 1500 | 1 | |
| I purchased a 2010 toyota prius in september of 2009. three times i have experienced issues with sudden acceleration after braking on a rough surface. two were in the same area where i was slowing to turn into a business and while braking i hit several small pot holes in the road. as soon as i hit the potholes i had a sudden brief acceleration where my brakes did not seem to work. in a short time the brakes seem to take hold. since there has been the recall and issues with accelerating with the cruise control my car has been parked. i have an appointment to have the vehicle looked at on thursday, but i have not received a recall notice. *tr | |||
| 02/08/2010 | 7000 | 1 | |
| I have a 2010 toyota prius. i noticed that when heading downhill on a road with many bumps, payment irregularities, etc. that the braking would total fail for about 1/2 a second. i was always careful on this type of road to reduce speed earlier to compensate. i had the recall reprogramming performed on 2/12/2010. *tr | |||
| 02/14/2010 | 5100 | 1 | |
| Hit a pot hole while using brakes and car lunged forward. *tr | |||
| 10/01/2009 | 5000 | 2 | |
| Twice my 2010 prius had a delay when applying the brakes. momentarily i thought i had a braking failure. *tr | |||
| 01/21/2010 | 900 | 1 | |
| Brake failure on 2010 toyota prius. when going over a traffic bump on a rainy day, the brake failed for about 1-2 seconds before i was able to bring it to a stop at the traffic. there was no accident, no property damage. *tr | |||
| 02/12/2010 | 2690 | 1 | |
| Braking for upcoming traffic light and when went over a rough spot in road, brakes temporarily failed. *tr | |||
| 01/19/2010 | 3240 | 1 | |
| Purchased 2010 prius in september 2009. in january 2010 the anti-lock brakes did not engage when braking on a slippery road. no accident occurred but we noted the risk it represented. *tr | |||
| 01/07/2010 | 10502 | 1 | |
| When applying the brakes on a bumpy road the car speeds up. *tr | |||
| 02/02/2010 | 1000 | 1 | |
| While driving a 2010 toyota prius it sounded like the rotors were squealing so loud we had to pull over and check the rotors and brakes. however, nothing looked unusual so we slowly drove back home. me and my wife then proceeded to return home slowly and the sound continued all the way home (10 miles). since then we have parked the vehicle to await results of recall that, which has been announced today. *tr | |||
| 02/02/2010 | 14000 | 1 | |
| Since i bought my prius back in july 2009, my brakes have been great except for the 5 or 6 times when the brakes disappeared for a second as i pulled up to a stop sign on a bumpy road. it | |||
| 11/01/2009 | 100 | 1 | |
| My car momentarily lunges forward when i go thru a pothole while braking. *tr | |||
| 02/09/2010 | 8189 | 1 | |
| While applying moderate pressure to the brakes on my 2010 prius and while driving over a bumpy road, the brakes seem to momentarily, but completely fail. then the car seems to briefly accelerate (or at least free-wheel) before the brakes feel like they're starting engage and work again. this has happened with this new car since the day i purchased it in july of 2009. it does it every single day, as i drive over the speed bump while driving out of the parking garage near my work. *tr | |||
| 08/25/2009 | 1 | ||
| My 2010 pruis brake probelm as reported in the news. *tr | |||
| 09/08/2009 | 10 | 1 | |
| Problem is with my 2010 toyota prius, brakes seem to fail and the vehicle will actually lurch forward when braking on a bumpy or icy or snowy conditions. date given below is approx to when i bought the vehicle and is a constant problem and ongoing. it is difficult to reproduce though, and you never know when it is going to happen. *tr | |||
| 01/28/2010 | 18800 | 1 | |
| I have had problems with my brakes working in my 2010 toyota prius. i was driving on a cold, wet road that was bending to the right. i pressed the brake pedal to slow the car, the car stuttered then accelerated while i was braking. the car slid off the road, into a ditch, and accelerated itself out of the ditch on the side of the road, the whole time i was depressing the brake pedal. no one was injured, no property damage was sustained, and there were no other witnesses. the left front bumper of my car sustained body damage that has not been replaced or fixed. the left front wheel well was pushed out of place so that when i turned the steering wheel at a sharp right, the left front tire would rub against the hard plastic wheel well. i had to pay to get the wheel well pushed and bolted back into place. this is the incident that took place on january 28th. prior to this incident, i have also had other times when the brakes failed, most often when i was driving at night when it was colder outside. they had failed at least three times while i was depressing the brakes to stop at a stop sign. while i depressed the brakes the car would jump forward and accelerate instead of slowing. i would have to take my foot of the brake and reapply pressure to get the car to come to a stop. *tr | |||
| 02/03/2010 | 10000 | 1 | |
| When depressing the brakes due to approaching a stop light, the vehicle traveled over a man hole cover which was uneven with the road service. the brakes appeared to release, the car drifted forward 3-5 feet, and then the brakes re-engaged. *tr | |||
| 01/27/2010 | 6000 | 1 | |
| Toyota prius 2010, having difficult backing out of my garage because the brake is extremely tight. after i eventually backed out, i drove a few yards forward and then tested it backward, the brake felt normal. *tr | |||
| 01/05/2010 | 2230 | 1 | |
| 1. i live in minnesota. after the first big snowstorm when i was braking on snow and ice, there was a very strong burning rubber-like burning smell, and the braking changed. i started sliding through stop signs and into intersections when on icy pavement. i was very concerned and took the car to the dealership on december 12. they reported there was nothing wrong with the car. 2. on january 5, i was on a totally iced over street in park rapids, minnesota. i made a left turn, then was slowing down to make a right turn into a parking spot. i was going very slowly. i depressed the brake, but the car failed to slow down. i kept sliding and hit the cement parking marker, which punctured the front of the car (in the bumper area). 3. nothing has been done, and i am afraid to drive the car. i have contacted my insurance company, who have suggested that i ask toyota to cover the damages. i have filed a complaint with toyota, but am still waiting for a return my call. i will be contacting my dealer today. *tr | |||
| 01/10/2010 | 2500 | 1 | |
| I own a toyota prius 2010 model. i acquired this vehicle in sep of 2009. i have noticed that when the car was traveling on a bumpy road, the brakes doesn't seem to engage. it seem to accelerate. i have noticed this only in slow speeds and it never occurred to me that it could be a manufacturing mistake. i blamed it on the road condition. this has happened many times and jan 10 was an approximate date. now realizing that i should have voiced my concern earlier. i am a long term toyota owner and i always trusted toyota and it must have blind sighted me. now i am getting nervous driving the car. *tr | |||
| 01/24/2010 | 8700 | 1 | |
| I purchased a prius 2010 in the summer of 2009. i called my dealer a week ago to report that i too had experienced the braking issue that was reported on the news. i was not sure if the car was skidding the first time i experienced it, i was going slowly and put on brakes over a slippery patch and the car lurched before braking, but then it happened again over a rough surface. when i reported this to the service department of my dealer, conicelli toyota of springfield, pa, i was told that no recall had been announced, no other concern or care was given to me at that time. i did ask for the contact information of the company and was given an 800 number and the website. i tried calling the customer service line of toyota twice to report my experience, and was on hold for over 10 minutes before hanging up without being able to leave a message. i contacted my dealer again and spoke with the customer relations manager, i asked that they report my experience to you and that they work to advocate for a solution for the brake issue. i am awaiting a response from them. i again tried the 800 number without success and then accessed your website. i was unable to locate a place to send or post my comment/concern, so i am writing this letter. please add me to the 210 complaints you have reported for the prius braking problem. i am deeply concerned that toyota | |||
| 02/07/2010 | 9600 | 1 | |
| 2010 prius brake problem experienced sunday, february 7, 2010. i was turning right into a driveway from a busy street and applied my brakes as i was entering the upward slanted driveway when braking disappeared and i surged forward about one to two seconds before applying the brakes a second time and regaining braking capability. it's the only time this has happened to me since buying the prius last november, but because of the uncertainty i read today about whether toyota would issue a recall in the u.s. after doing so in japan for the same cars, i thought it would be worthwhile to submit this to you. *tr | |||
| 08/01/2009 | 1000 | 1 | |
| When braking while going over bumps, the car lurches forward and doesn't seem to grab until after the bump. it is especially noticeable when exiting a high speed road onto a decelration lane. it has been ongoing since purchasing the vehicle. i have made adjustments in operating the vehicle to minimize the number of occurences, but cannot always foresee the bumps or ridges in road surfaces that precipitate the incident. *cn | |||
| 01/10/2010 | 1 | ||
| After owning the car for 1 month, i have noticed that on occasion, when i press the brakes, the car will automatically accelerate for a second before breaking. this does not happen every time, but it does happen a few times day. i have no way of figuring out what could be contributing factors since it just happens when i am braking just before it completely stops, no matter what speed i am driving. *cn | |||
| 02/06/2009 | 2000 | 1 | |
| While slowly decelerating using the regenerative brakes, the regenerative brakes turn off occasionally at low speeds (5-10 mph). there is a very short (<1 second) burst of forward movement before the actual brakes activate. during this whole time the brake pedal is consistently depressed. this burst forward does whip the driver back into the seat a bit due to the unexpected nature of this event. this has probably occurred about 5 times in the past 2.5 months since i purchased the vehicle. *cn | |||
| 01/07/2010 | 7000 | 1 | |
| Our 2010 toyota prius is experiencing periodic, temporary brake failure/unintended acceleration. my wife is the primary driver and states that on 4-5 occasions over the past 9 months, when braking over uneven surfaces at speeds of 10-30 mph, there can be a temporary period of unintended acceleration lasting 1-2 seconds. *cn | |||
| 02/06/2010 | 1360 | 1 | |
| While driving eastbound on moorpark street, approaching dixie canyon avenue, i braked in preparation to make a right hand turn, and the brakes released when i hit a small pot hole. the brakes re-engaged approximately 1-2 seconds later. *cn | |||
| 01/22/2010 | 3805 | 1 | |
| I have purchased a 2010 toyota prius, and never noticed any problem with my braking, until 1/22/10. i was driving over a section of road, that was uneven where a bridge meets the road. i was braking for the stoplight ahead that was red and cars were waiting in the line. when i applied the brakes at about 10 mph, and hit the uneven road section, the car seemed like it lost braking, for an instant. i had to push harder on the brake pedal to assure a stop. i have since driven that same section of road to replicate the problem, and it had repeated itself, but not on every occasion. it appears that there is some issue with the hybrid brake system...between regeneration and friction but not sure what the issue is. i only have 3800 miles on the car so have not called the dealer for service yet. will plan to do that if it can wait until the first 5,000 mile service. *cn | |||
| 01/24/2010 | 4976 | 1 | |
| Entire system shut down tow service from dealer came and charged battery to no avail system came back online as vehicle was being raised on flatbed tow truck car was then driven away under its own power dealer could not find the problem problem has not reoccurred brake delay problem which occurred prior to system shutdown has recoccurred brake delay or temporary loss of braking when peddle depressed has occurred brake squeek also reported to delaler who advises there is nothing wrong with brakes *cn | |||
| 01/30/2010 | 2000 | 1 | |
| 1. event: normal city driving (i.e., car in drive and cruise control off) 2. the failure: press on brake and feel softness instead of firmness; must press much harder on brake than typically required to bring car to stop in same distance. failure occurs sporadically during course of regular driving. have not associated failure with traveling over rough surfaces. 3. contacted toyota dealer and was told that we would receive letter in mail instructing us on what to do, because no correction has been developed yet for this problem in existing cars. *cn | |||
| 02/06/2010 | 4200 | 1 | |
| I suffered a temporary loss of braking while approaching a toll booth on the new jersey garden state parkway. the loss occured immediately after hitting a large bump as i was slowing to pay the toll. soon after braking returned and i was able to continue slowing and did not strike anything. *cn | |||
| 11/16/2009 | 10000 | 1 | |
| Prius 2010 braking issue - problem has occurred at least 5 times; on rough surface, downhill surface or when wheels encounter a manhole or steel plate road cover. problem is recurring. car has 12,600 miles on it. *cn | |||
| 01/20/2010 | 2800 | 1 | |
| 2010 toyota prius loses brake response completely after hitting any medium sized or larger bump. happens at least twice a week and has resulted in sliding and hitting a curb once. car is unsafe to drive. took car to toyota dealer and was told there is no fix for this issue at this time i was given the toyota customer experience phone number and when i called i was greeted with a recorded voice saying we cannot take your call at this time if you need to speak to a representative call back later and then hung up on. *cn | |||
| 02/05/2010 | 450 | ||
| As i braked to make a right turn at an intersection, my two week old 2010 toyota prius stopped braking when i hit a section of the roadbed that had some winter damage to it and the car's anti-lock brakes attempted to cut in. it felt like the car surged forward, but i understand it was just a sudden loss of braking as the transfer between the different braking mechanisms occurred. since i was turning onto a highway service road during rush hour, i felt the delay was a danger to me and the occupants of my vehicle. | |||
| 01/10/2010 | 800 | ||
| I have a 2010 prius and have experienced the ame type of brake floating as others have reported | |||
| 02/07/2010 | 10025 | ||
| Driving a 2010 prius coming to a stoplight. went over a raised portion of road resulting in a very noticeable bump. car seemed to lurch forward and braking didn't seem to work for a short time. thought i was going to go through the red light into cross traffic but brakes took hold and i was able to stop. | |||
| 11/17/2009 | 12000 | ||
| When i brake on bumpy raods, the car sometimes learches and then the brakes engage, and stop the car. | |||
| 01/19/2010 | 4600 | ||
| On our 2010 toyota prius, when braking on a fairly steep downhill road, the car seemingly jerks forward/accelerates for a split second. this has happened on several occasions. | |||
| 12/15/2009 | 5000 | ||
| When on a slippery road and you are applying moderate brake pressure and the antilock brakes are engageing and you hit multiple bumps or potholes you have a momentary loss of brake pressure and braking action untill the bumps stop or you press the brake down further and braking is restored. i have had this happen on several occasions and once in our parking lot a vehicle was struck requireing $1200 in repairs. | |||
| 01/15/2010 | 649 | ||
| My 2010 toyota prius, purchased 12/28/09, has briefly lurched forward on multiple occasions when i was braking and crossed a bump in the road. i am reporting one date below, but the brief brake failure has recurred repeatedly, always at the same spot on the road. | |||
| 09/30/2009 | |||
| It appears that the car either does not respond or even accelarates when braking on uneven surface. it happened to me more than 10 times, i have the car for 4.5 months. | |||
| 01/06/2010 | 2300 | ||
| I have on at least 4 occasions experienced the braking issue (that is being investigated) on my 2010 prius. it happens when i go over railroad tracks, or hit a pothole. please add my complaint to the others that report similar problems. | |||
| 10/09/2009 | |||
| The brakes on my 2010 toyota prius at times do not engage immediately. it may be necessary at those times to depress the brake pedal by 1/3rd before braking begins. there is a similar delay when braking is used to turn off cruise control. neither of these have caused an accident, but in both cases there is some risk. | |||
| 01/02/2010 | 5100 | ||
| I was driving down a hill that has a slightly uneven surface and was a bit icy and when applying the brake in my prius, my car sped up slightly when it hit the uneven surface and seemingly jumped faster before the brakes kicked in and brought my car to a stop. this has happened twice on different roads, both of the road surfaces being slightly uneven. nothing has been done to correct this problem, when i called toyota they told me that there was nothing they could do. | |||
| 09/05/2009 | |||
| The brakes on my prius have failed numerous times over 7 months in both city and rural driving conditions. when brake failure occurs, the prius brakes not only disengage (fail) but the car seems to lunge forward. it's as if i am braking with my foot on the gas pedal and then let up on the brake while the gas pedal is still depressed. it is not a safe vehicle. i have great concern for my safety and the safety of my family and others, particularly pedestrian safety at intersections. | |||
| 02/02/2010 | 5000 | ||
| Brakes disengage momentarily when braking on a rough or rippled surface. it gives the feeling the vehicle is being accelerated. uncontrolled travel distance can be lengthly. i have experienced four such instances. | |||
| 01/09/2010 | 5000 | ||
| The brakes on my 2010 prius did not engage two times while driving in snowy conditions this winter. i almost crashed into a car both times. | |||
| 06/18/2009 | 50 | ||
| Purchased 2010 prius v apporx. mid-june. drving in first wk of ownership, observed break problem. vehcile had approx. 50 miles on. drining 25-30 mph on straight, smooth, blacktop road on a sunny, nice day. a car backed out of a 45 deg parking spot without warning, i had to slamp on breaks at the same time the gas/electric motors were switching. the break pedal lost feeling that it had pressure until i pushed the break pedal another 2 inches more to feel pressure and that the breaks were grabbing. i did not report this in june, due to i thought i was imagining things due to the emergency stop took my attention to some degree. i was a service manager for chrysler years ago, so i am very familiar with vehcile mechanical systems and i have purchsed approximately 25 new vehciles in my lifetime. | |||
| 12/01/2009 | 1500 | ||
| I own a 2010 prius. i notice that on many occasions, the warning lamp on the dashboard for the anti-skid system comes on very easily, when the car is not in any danger whatsoever of skidding, and that it sometimes comes on when the car is actually at a stop. i have also noticed that when driving on uneven pavement, at moderate speeds of about 30 mph, the brakes do not feel reliable, and that sometimes they feel very sloppy: slow to react and very soft in their impact. i have been driving earlier model prius cars for several years and did not notice this same problem before i started driving my 2010 prius. i am not confident about the brake system and feel reluctant to drive the car, except at very low speeds. | |||
| 01/25/2010 | 8000 | 1 | |
| Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). [xxx] to whom it may concern: i purchased a prius 2010 in the summer of 2009. i called my dealer a week ago to report that i too had experienced the braking issue that was reported on the news. i was not sure if the car was skidding the first time i experienced it, i was going slowly and braked over a slippery patch and the car lurched before braking, but then it happened again over a rough surface. when i reported this to the service department of my dealer, conicelli toyota of springfield, pa, i was told that no recall had been announced, no other concern or care was given to me at that time. i did ask for the contact information of the company and was given an 800 number and the website. i tried calling the customer service line of toyota twice to report my experience, and was on hold for over 10 minutes before hanging up without being able to leave a message. i contacted my dealer again and spoke with the customer relations manager, i asked that they report my experience to you and that they work to advocate for a solution for the brake issue. i am awaiting a response from them. i again tried the 800 number without success and then accessed your website. i was unable to locate a place to send or post my comment/concern, so i wrote this letter. please add me to the 210 complaints reported for the prius braking problem. i am deeply concerned that toyota | |||
| 01/14/2010 | 800 | 1 | |
| 2010 toyota prius. this week, toyota is supposed to announce whether the 2010 prius will be recalled for problems with its braking system. i brought my prius on september 4, 2009 from san francisco toyota. i have the problem that has been described in the media: though i have not driven it in rainy conditions, the braking system fails when i hit a pot hole while applying the brakes. there is a hill near my home that i drive most every day. it happens in the same place every time: i am headed downhill toward a stop sign; i hit the pot hole and for a second my car feels as though it were hydro planing--i have absolutely no control. i didn't think to complain about this before i began hearing the news. i don't drive very much in the city and it was only in this one specific place that the brake system seemed to fail. but it is terrifying to feel that your car is out of control. if i drove my prius more i am certain i would be experiencing this design flaw more. i encourage nhtsa to bring its regulatory weight to bear to force toyota to fix this problem--which it has for 2010 prius's sold after january 2010. i would like the same safety measures taken for those of us who have defective and potentially dangerous vehicles, but who bought our prius's before january 2010. *tw | |||
| 08/31/2009 | 400 | 1 | |
| Since i purchased the vehicle, the brake seem to have problems engaging; it is sluggish and i have to depress down hard on the pedal to engage the brakes. *tw | |||
| 09/01/2009 | 500 | 1 | |
| Since i purchased my 2010 prius in august 2009 i have felt the car had braking issues, i.e. brakes seem to not engage momentarily when brakes depressed as well as brakes seem to go in and out when i initially start up the car. i thought it was just the new car which i have not gotten used to and that it needs to be broken in. i have not driven the car since late december due to fear of problems in the rain. i have had to purchase another car early january in the mean time. *tw | |||
| 01/26/2010 | 110 | 3 | |
| 2010 toyota prius has jumped forward three times since purchase two weeks ago. twice when traveling over a pot hole with my foot applied to the brake and once when braking over a speed bump on a side street. the car felt like it accelerated and that i was not in control of the vehicle. *tw | |||
| 01/21/2010 | 2700 | 1 | |
| Experienced lack of braking when my 2010 prius was going over bumpy terrain. i was pressing on the brake as i was approaching an intersection, and no braking was occurring until the car reached smooth ground again. instead it felt like i was skidding, and the brake pedal just vibrated back at me. i can confirm that the problem being reported in the news media in japan, is in fact, a real problem. when i heard about it on the news, i realized, hey, i experienced that. i would encourage a recall. it is a legitimate problem that does indeed sometimes occur in the situation i described. it is scary. *tw | |||
| 07/02/2009 | 2340 | 1 | |
| I noticed my breaks would not function properly when i tried to stop on uneven pavement or wet pavement. my husband later drove the car and thought we got hit from behind when he tried to break. the car surges forward before it stops. i took the car to the dealership in late november-december for the problem they tell me the brakes function properly. i have since scheduled another appointment, they did not seem to care that a brake announcement had been made on my prius. i explained to them that if they did not want to fix or address my problem, that when i hit someone because my car does not stop and surges forward, i will sue toyota. i am considering filling for lemon law. i feel very unsafe. i drive my children to school everyday and feel that toyota does not seem to care if the prius brakes function properly. *tw | |||
| 07/30/2009 | 1500 | 1 | |
| My 2010 toyota prius lurches forward when i brake going over a bump, pothole or manhole and sometimes slippery surfaces. it is brief. we reported it to the dealer at around 5000 miles. they thought it was the anti-lock brakes but i have driven a car with ani-lock brakes for over ten years and this feels different. i bought the car in june 2009. *tw | |||
| 01/10/2010 | 2000 | 1 | |
| I have a problem with my toyota prius 2010 braking system. brake fails sometimes on stop signs. the brake control is lost for a few seconds at that time. i feel like the control is lost. the vehicle moves forward and stop. i spoke with my neighborhood dealer who informed me that toyota is working on this issue and nothing can be done until a recall is issued for this problem. *tw *tr | |||
| 08/28/2009 | 200 | 5 | |
| Momentary lack of brakes during uneven road surface. situation has happened approximately five times. during braking, either uneven surface or on a dirt road, the car feels like it loses all braking for approximately 1-2 seconds. i first though it was the abs kicking in, but there is no pulsing just a loss of braking. does not happen all the time. i noticed condition within the first week of use. dealer said that it was the abs and nothing to worry about *tw | |||
| 01/14/2010 | 4500 | 5 | |
| Brakes seem to fail when braking over a depression in the road or when braking on icy patches of the road. this has happened at least five times in december, 2009 and january/february 2010. prius *tw | |||
| 01/16/2010 | 1 | ||
| Loss of braking power (weak braking) when rolling over bumps, pot holes and even cracks in the pavement. *tw | |||
| 12/18/2009 | 4500 | 1 | |
| When reversing, brakes occasionally grab causing occupants to jerk forward. *tw | |||
| 02/07/2010 | 2000 | 1 | |
| I own a 2010 toyota prius which i purchased in august 2009. when i drive down a bumpy hill near my home, the brakes temporarily fail to hold if i am braking while going over the bumps themselves. it feels like the car it taking off after each bump. i believe i am experiencing the same problem as other prius owners are. thank you for you attention to this matter. *tw | |||
| 12/14/2009 | 1 | ||
| I purchased a 2010 prius on july 23, 2009. i took it to the dealer december 14, 2009 with the following complaint: rear brakes will lock up and slide when turning corners, they will also lock up when backing slowly. the first time they did that i thought i had hit something. the dealer kept the car overnight. the technician said he could not duplicate the action and the shop mgr. spoke with toyota technician and was told there were no known concerns at that time. since then i have called several times about the problem but no one would take me serious. *tw | |||
| 02/04/2010 | 1323 | 1 | |
| We bought a 2010 prius iii at the end of december 2009. we have noticed a braking problem as follows: with brake pedal pressed, going over a bump, the car will lunge forward 1 to 2 feet, even though the brake is pressed and car moving very slowly. this has happened about 6 or 7 times, most recently 2/4/10. we are careful to stop with significant room before a car ahead at stop lights and intersections but cannot foresee all situations. we have a teenage driver and it is therefore especially important this be fixed. we have reported it to the dealer. *tw | |||
| 02/06/2010 | 2500 | 2 | |
| This is the second time my car has hit a pothole in the road and the brakes stopped working. the first time i thought it was just me, but the second time i realized it was really happening and scary. i was headed southbound on rowena blvd in los angeles, was starting my deceleration when i hit this pot hole on the right side of the road. for about 2 seconds my car stopped decelerating and i could feel no power on the brake pads, then suddenly the brake power returned. *tw | |||
| 07/07/2009 | 0 | 1 | |
| Since purchasing my 2010 toyota prius, i have had serious issues and safety concerns with the braking system. when you brake and hit a bump or pothole or large dip, the brake cut out and the car is not controllable until a few moments later. i reported this to the dealer and was assured it was performing as intended and normal for an anti-lock system. having used anti-lock brakes for nearly 20 years, i know this to not be the case and stated this. i now understand this problem is widespread. my most recent email to toyota is attached: date: february 7, 2010 11:46:13 am est dear i received your email address this morning and felt i should forward on my earlier emails (regarding braking problems with my 2010 prius) to colonial toyota directly to you - please find them below. i understand that late friday toyota corporation advised dealers that corporate would announce a fix early this week. i honestly would have preferred to have learned this from colonial, than from the ny times. as i expressed during my sales experience and troubles with cash for clunker program - i understand there are certain things as a dealer that you are not in control of, but i expect and would appreciate clear and timely communication. moreover, given the seriousness of this as a safety concern, i am concerned that the service department did not at least offering to help look into my braking issue when i verbally reported it during service. instead, i was assured it was normal for anti-lock brakes and my clear statement that it was something i had never encountered before, despite owning anti-lock equipped cars for the past 19 years was dismissed. i would like to reiterate my request below regarding bringing my vehicle in immediately to fix the issue (and related damage) as soon as you able to and providing a loaner at toyota's expense. i look forward to hearing from you as soon as possible. *tw | |||
| 11/21/2009 | 75 | 1 | |
| Faulty brakes on 2010 prius. i noticed within a week or so after purchase in november, 2009 that when going over a bump or pothole in the road and i used the brake pedal, there was a delay wherein the car seemed to accelerate over the problem in the road, nearly leading me to collision with another vehicle or pedestrian. since november it's been a constant, frightening problem. *tw | |||
| 08/01/2009 | 1000 | 6 | |
| Experienced brake slippage on 2010 prius. slippage or quick temporary feeling that brake gave way occurred while descending a small hill with bumpy pavement. occurred about 6 times without incident. occurred also more recently once on icy pavement. *tw | |||
| 01/22/2010 | 3805 | 2 | |
| Driving at very slow speed...braking at stop sign behind another car; needed to hit the brakes--not quite slam on the brakes --as i realized i was closer to car in front of me than i'd thought. car in front of me pulled away at the same time (fortunately) as my car lurched forward; i didn't feel it was going to stop; when i then proceeded car made horrible noises...sounded i thought bottom was going to fall out. have experienced the same not going to stop feeling a second time since. what followed? called dealership immediately; they suggested i come in for brake check, which i did following day. told it was going to cost $125; we discussed likelihood that problem probably wouldn't happen for the mechanic, i decided against spending money for brake check up when service dept. told me it was just the way prius' abs brakes work. when i asked about the news reports i'd heard about this braking problem they didn't know anything about it, pointed to absence of info on toyota's website for service departments and said media often blows things out of proportion. called toyota corp and case manager that returned call to me had no information about media reports i referred to. *tw | |||
| 02/06/2010 | 14 | ||
| When applying the brakes over a bumpy or metallic surface, there is a uncomfortable delay until the brakes kick in. this has been going on for some time. | |||
| 01/15/2010 | 5200 | 2 | |
| We have twice experienced a brake cut-out, where we are coming to a stop sign with foot on brake and hit a bump/pot hole and the car lurches ahead as though we have temporarily removed our foot from the brake even though we haven't. *tw | |||
| 11/01/2009 | 20 | 1 | |
| I have a 2010 toyota prius and i noticed a problem with the breaks. when i am slowing down, with my foot on the breaks, and hit an uneven road, the car loses the breaks and surges forward. *cn | |||
| 12/29/2009 | 4000 | 1 | |
| I own a 2010 prius that i purchased in august, which has between 4 and 5 thousand miles on it. the brakes have been squealing for about a month, intermittently but fairly often (some days are better than others). also, the traction control system light (slippery warning) sometimes beeps/flashes even when i am sitting still on dry level pavement, especially if i depress the brakes all the way to the floor. i have not yet experienced any life or property loss as a result and am providing this information on a purely fyi basis as you try to figure out issues with 2010 prius brakes. (the issues as i understand them do not seem to exceed the normal risks of driving, so i don't plan to do anything except mention it at the 5k checkup, unless i hear otherwise in the news.) *cn | |||
| 12/15/2009 | 7000 | 1 | |
| Coming out of a parking lot downhill ... hit a bump ... brakes failed and almost sideswiped by oncoming traffic. hit the brakes a second time and car stopped just in time to avoid a collision. this is the only time we have had this happen ... brakes have worked ok rest of time. nothing done yet to correct the bump defect at slow speeds. *cn | |||
| 10/01/2009 | 85 | 1 | |
| My prius 2010 3rd generation model's brakes seem to go out when braking over uneven road. this has happened more than 10 times starting from the first week i got the car. especially going over potholes, the car lurches forward several feet. i called the dealer service department and they said there was nothing that could be done to remedy the brakes. i was told to call back if there was a re-call issued. *cn | |||
| 09/14/2009 | 500 | 1 | |
| At low speed (less than 15 mph) on dry, smooth pavement, the brakes on my 2010 prius occasionally fail to engage for approximately 2 seconds. this has occurred less than once a month since august 2009, or approximately 4 times. *cn | |||
| 12/10/2009 | 3000 | 1 | |
| 2010 toyota prius hybrid brake problem: purchased new in october, 2009, my prius has experienced momentary brake failure while stopping under certain conditions. specifically, when i hit a bump while braking sometimes it feels like the brakes momentarily release and the car launches forward. this has happened 6 to 10 times since i purchsed the car. i alerted the dealer (bernardi toyota in framingahm, ma) about 3 - 4 weeks ago, and they were not aware of the problem. no solution has been offered yet. *cn | |||
| 11/30/2009 | 1500 | 1 | |
| 2010 toyota prius accident- we had noticed the braking problems but it was not an issue until we were involved in accident where the brake did not stop the car. and in light of the current event, it is best to complaint about about. *cn | |||
| 01/01/2010 | 100 | 1 | |
| Multiple incidents of acceleration while braking when going over bumps. *cn | |||
| 07/01/2009 | 250 | 1 | |
| While slowing down (foot on the brake) for a light or road bump, the car suddenly accelerates until i press harder on the brake. this has occurred about 10 times since i purchased the car summer of 2009. no accident but almost rear-ended the car in front of me several times. brought to toyota and told nothing was wrong and i wasn't used to the abs system. this can't explain the sudden acceleration and near miss accidents. *cn | |||
| 10/31/2009 | 1 | ||
| Since purchase in october 2009, i have experienced occasional problems with the brakes on my 2010 toyota prius. sporadically, when i apply the brakes to slow down going down a slight incline or stopping at lights or intersection, i feel a momentary lag before the brakes actually function. the lag is noticeable and similar to feeling airborne or slipping causing me to frantically push down harder on the brake pedal than usual. this has recurred perhaps 10 different times i also had one incident when the brake seemed to lock when the gear was in reverse and i was beginning to back out of a parking space. please note the date of incident and mph is only an estimate. *cn | |||
| 11/12/2009 | 1000 | 1 | |
| I have a 2010 prius and have had trouble with brakes since i bought it. dealer has been contacted three times and letter to toyota with no response. the brakes are not right and i am afraid i will be in an accident. *cn | |||
| 12/09/2009 | 1200 | 1 | |
| Prius 2010--pause in braking while approaching stop sign. road conditions were snowy and uneven road surface. braking paused for several seconds, enough so that i would have collided if there had been car ahead at stop sign. happened again about 1 week later in the exact same spot. *cn | |||
| 02/01/2010 | 3 | ||
| 4 instances of failure of the brakes to stop the car 1st time in june 2009 at a stop sign - had to push brake very hard to get car to stop 2nt time in aug 2009 again approaching a stop sign brake would not engage until pushed very hard 3rd time sept 2009 same situation last incident 2.1.10 same situation. road had some snow on it. *cn | |||
| 10/10/2009 | 4500 | 1 | |
| While applying the brakes to slow down to go around a curve that also goes downhill, my 2010 toyota prius seems to speed up for a few seconds in the midst of the turn. i can't tell if this is the braking system failing or the accelerator kicking in. it's not centrifugal force, because there is a clear surge forward. this happens pretty regularly, as this is a maneuver that i make regularly on my way home. i put in an arbitrary date below, because it has happened many times. i notice this happening at other times too, but i don't have a consistent record of when and where it happens. *cn | |||
| 02/05/2010 | 5000 | 1 | |
| I own a 2010 toyota prius and frequently (~1 x week) experience a braking problem as being reported by the media. if, while i am braking, the car goes over a bump, pot-hole, or wavy pavement, the car feels like it isn't braking, as if the wheel is off the ground or sliding on ice. it only occurs while the car is being bumped, so usually it is only lasts a matter of a few feet. i hope this helps you identify the problem and determine a course of action. *cn | |||
| 01/20/2010 | 800 | 3 | |
| I bought a 2010 toyota prius in the end of december 2009. since then i have experienced the momentarily brake loss when driving over the uneven surface. it only have happened 2-3 times but it makes me worry about the safety of my family and myself. *cn | |||
| 02/05/2010 | 3800 | 1 | |
| Temporary brake failure when braking over potholes or braking in a turn *cn | |||
| 02/05/2010 | 25000 | 1 | |
| My 2010 prius stops braking or accelerates when hitting a pothole or bump causing the car to stop later than anticipated. almost hit a person in the cross walk. *cn | |||
| 12/10/2009 | 1000 | 2 | |
| 1) while driving my new 2010 toyota prius straight ahead at approximately 10-15 mph on a dry, sunny day, i hit the brakes hard to stop at a red light. the car skidded loudly enough that several bystanders looked at me. this was clearly a failure of the anti-lock braking system. i recently brought the vehicle to my toyota dealer (toyota santa cruz), which inspected the brakes and declared them to be fine. this problem has not recurred, though i have not had to apply the brakes in such a strong manner since that one incident. 2) on two separate occasions, while driving the same prius at very slow speeds (perhaps 5 mph) shortly after starting the car, my wife gently applied the brakes; the vehicle jerked almost to a stop. in other words, a gentle application of the brake pedal led to a very rapid, jerky, stop as if she had slammed on the brakes. *cn | |||
| 02/06/2010 | 5002 | 1 | |
| While braking, right front wheel hit a small pothole and brakes disengaged for a split second. *cn | |||
| 11/18/2009 | 10000 | 1 | |
| We purchased our 2010 toyota prius in june of 2009. i have noticed that when i accidentaly hit potholes and try to apply the brakes at the same time it feels like the brakes do not hold. i do not have a set date when i first noticed this, some time in late fall on a rainy night. i thought i was just imagining this until recently when i heard others were experiencing the same thing.i love this little car, but now i am afraid to take it anywhere.how do i find out the results of your investigation? *cn | |||
| 12/14/2009 | 9000 | 2 | |
| I was driving my 2010 prius approximately 20 mph on an icy road. because it was icy, i started braking very early before coming to a stop sign. there was no response from the brakes at all. i blew through the stop sign out onto a 40 mph road. i was only able to avoid a collision by steering away from cars. i applied the brakes the entire time, which was several seconds and the brakes never engaged. the next time i used the brakes, they worked. initially i thought that the reason the car did not slow down was because it did not have any traction due to the icy conditions. but after thinking about it, i did have traction because i was able to steer quite well and suddenly change directions without any slipping at all. this did not make sense to me until i read about the braking problems. my husband has experienced the car lurching forward when applying the brakes on a slippery or uneven surface many times. he applies the brake and the car lurches forward before the brakes engage. *cn | |||
| 02/02/2010 | 2595 | 1 | |
| Occassional very brief loss of braking when going over uneven pavement, speed bumps or traffic calming devices at a slow speed. no injuries or collisions as a result. have not contacted dealer yet but am awaiting potential recall notice. *cn | |||
| 02/05/2010 | 230 | 1 | |
| I own a 2010 toyota prius. when i approach a pothole or rough patch in the road and apply the brakes as i am driving over it, the brakes slip and the car lurches forward. this has occurred six times since i purchased the vehicle in september of 2009. i took the car to toyota of santa monica on february 5,2010. they ran a diagnostic test and concluded that nothing was faulty within the braking system. this is the same day every news organization in the world was reporting that toyota admitted there is a software problem in the abs braking system and was repaired on 2010 prius models built from january 2010. *cn | |||
| 02/06/2010 | 250 | 1 | |
| While traveling over a speed bump and applying brakes, brakes malfunction for a period of time. while traveling to car dealership and coming to a stop to make a turn, the road was uneven, and the brakes again did not function immediately. on both occasions, no cars were directly in front of may car. *cn | |||
| 01/16/2010 | 1600 | 1 | |
| On several occasions my 2010 prius has failed to stop immediately when i have applied the brake at slow speeds. this has occurred while on ice surfaces as well as clear surfaces. there is just a fraction of a second delay before the brakes take hold. fortunately there has not yet been an accident but if i were to have had less space between me and the car ahead, there would have been a crash. *cn | |||
| 02/05/2010 | 220 | 1 | |
| Momentary brake loss. 2010 prius, mfg. date 12/09. purchase date 2/1/10. low speed slowing down with light braking for stop light. happened over a man hole cover (i think). when it felt like the brakes quite momentarly. *cn | |||
| 12/10/2009 | 6500 | 1 | |
| Halfway down a hill in this vermont village is a right turn that goes uphill. i have driven this is in winter weather in many different vehicles for over 40 years. on this day there was snow on the road so i was driving slowly going down the hill and was going to make the right hand turn but when i applied the brakes they reacted unlike any other car i have driven in those conditions and just seemed to cause me to slide instead of slowing down. at that point i decided not to turn and continued carefully down the hill. fortunately there were no vehicles in front of me or i felt i might have slid into them. later that week i called and talked to the toyota service manager where i had bought the car. he said he wasn't aware of any problem with brakes, that he had a prius, although an older model, and hadn't had any problem. he had heard from one other person with a braking complaint on the 2010 model. i asked him to inform me if he found out anything but i never heard from him. the condition was serious enough from my point of view that since i have a second car i have not used the prius in inclement weather. i would consider this, in light of recent disclosures, to be a very serious and unsafe condition to put me, me family and others on the highway at risk and would hope that a recall and resolution to this problem would be quick and forthcoming. *cn | |||
| 01/15/2010 | 7800 | 1 | |
| Toyota prius 2010 - breaks failed to stop car on 3 separate occasions during the past month. each occurrence was at an intersection (roads each time were plowed for snow, but still a bit slick). the car eventually stopped due to the vehicle slowing down, but still not breaking. one occurrence was at an intersection where the car did not break at a red light and i quickly turned the wheel to the right to proceed onto a side road. i have called the service department at the toyota dealership (where the car was purchased last fall), and have not received a response. *cn | |||
| 07/15/2009 | 1500 | 5 | |
| The brakes on my 2010 prius have a problem when going slowly over uneven, bumpy road conditions. the car seems to lurch forward during the braking sequence. it is very startling. luckily no one has been in fornt of me, close enough to make contact. it has happened 5 times. i cannot predict when it will occur. when i first told the service dept at dealership, within 2 weeks of owning car, they siad it's just something to get used to with the braking sensor or somethiong and it isn't actually accelerating forward. i mentioned it again last week after the issues with the other cars accelerators, and the service dept said i have to replicate it with them, to address it. i called them after info was broadcast on the radio, and they said they had not heard anything. now i hear in the news that they knew of this problem and almost exactly describe it as i experience it. i drive over this type of road daily, and am trying to avoid as much as possible. *cn | |||
| 08/01/2009 | 2500 | 4 | |
| Momentary loss of braking during a turn or coming upon a speed bump. has happened 4 times since purchase of vehicle. 6/6/09 *cn | |||
| 02/02/2010 | 2000 | 1 | |
| I have a 2010 prius when i go over bumps the brakes will not engage right away when i depress the pedal *cn | |||
| 02/04/2010 | 100 | 2 | |
| 2010 prius. have a number of incidents that at first thought the stability system but now understand that is not so. has happened a few times. when going around a corner on wet road and applied brake had this lurch forward movement. happened again once on ice and again when going from asphalt to slightly raised brick road and was applying brakes. was applying brakes in all incidents. in addition on numerous occassions have started car with the brake recessed. placed car in reverse and now the brake peddle becomes tight and then no longer smooth braking and jerky. turned off the car and restarted and it corrected itself to normal. this has happened in many different months but twice in the month of february. once with turning the car on and tight abnormal brake and once with the lurch while driving and applying brake on change of pavement *cn | |||
| 12/15/2009 | 2065 | 1 | |
| Brake on prius 2010 would not be clean and consistent while going at a very slow speed.... *tr | |||
| 02/05/2010 | 7000 | 1 | |
| Toyota prius 2010 braking problem turning left in to parking structure or on to highway ramp. sudden surge and loss of braking for a few moments. always able to control car. *tr | |||
| 01/30/2010 | 2000 | 1 | |
| Just reinforcing what has already been reported about the 2010 model prius. i have a 2010 prius that was purchased in november 2009, and i have on numerous occasions had issues when braking at slower speeds and driving over potholes or dips. the brakes seem to give out for a moment and the car accelerates, resulting in the need to slam down the brake harder immediately. the incident usually only lasts for a second or two, and i am trying to drive extra carefully to compensate. but the delay in braking could absolutely result in a traffic accident due to the increased time to decelerate. *tr | |||
| 02/05/2010 | 7000 | 1 | |
| My 2010 toyota prius accelerates suddenly coming to a stop and going over a bump. it has happened several times since i bought the car last july (twice today). also, it handles terribly in the snow, skidding through turns and when braking. i have been driving in the snow for 30 years and have never had a car that handles so poorly. *tr | |||
| 01/06/2010 | 200 | 1 | |
| I own a toyota prius 2010 and i live in a snowy city. i have experienced unusual problems with brakes three times in month of january. first time i was taking my two children to school and as i was approaching stop sign, i slowed down as usual and applied brake. when i was almost at the stop sign, i realized that car wasn't stopping, so i panicked and pressed brake pedal hard and then i noticed the abs started to work and i passed the stop sign about three meters, road was covered with snow. second time i was going to work on a wet road and not icy. i was approaching a traffic light and as i slowed down i also changed lane and applied brake. before the traffic light i noticed that as if i was not braking, so i pressed hard on the brakes and it stopped. third time i dropped my children to school and started to go to work and i experienced similar problem with brakes, wet road and not icy, but this time i panicked because of some cars on the road, i pressed hard on the brake and it stopped in front of the stop sign and i had to back up. so i called my husband at his work as i was very nervous about this situation. he said it is probably because of the weather and may be because i am very careful about the new car. so he said that he would test drive the car to see if there is any problem. he drove the car to work for two weeks, 700 miles, and he told me that he had only once unusual problem with brakes similar to what i had. two days ago i heard about prius brake problems and i took my car to the dealer. dealer said that inspection has found no problem. and here i am driving this car again. *tr | |||
| 12/05/2009 | 6 | ||
| I have a 2010 toyota prius, purchased on 7/24/09. on several occasions, the first being 12/05/09, the prius has reversed in a jerky fashion. i keep my foot on the brake, ease up on the pedal with the car in reverse, and the car lurches backwards at a surprising speed, and a speed which is unwarranted by the amount of pressure on the brake. this has happened 4-6 times in the last two months. i have never had this experience with any other car, and my fiance has experienced the problem when he drives my prius. it seems to occur on inclines and uneven surfaces. it has not yet caused an accident or injury, but i find this issue concerning. *tr | |||
| 02/04/2010 | 6500 | 1 | |
| I was approaching a traffic signal, hit a small pot hole, and applied the brakes on my 2010 toyota prius. the pedal went all the way to the floor and the car did not slow. i released the pedal and stepped on it a second time and this time the brakes worked. *tr | |||
| 12/29/2009 | 4300 | 3 | |
| Toyota prius 2010. on three occasions on ice and/or snowy roads the brakes failed to stop the car safely. on two occasions the car came down the brick street and into the cross street. fortunately no accident occurred. first time in dec. 2009, twice in jan. 2010. *tr | |||
| 09/15/2009 | 2000 | 4 | |
| I bought my 2010 prius in july 2009. over the course of the first 3-4 months, there were 3 or 4 instances when i felt momentarily that i had no braking control, all while traveling at low speed over bumpy terrain., and at least twice while in reverse. i didn't identify it as being a real problem until the braking problem surfaced. i am eager to have my car fixed, so that there isn't a crash in the future. *tr | |||
| 11/10/2009 | 50 | 1 | |
| Before the news about the 2010 prius brake problem became national, i had experienced several instances with my 2010 prius (purchased nov., 2009) during which i would brake at low speed over bumps or rough roads and experience a sliding or brakes-not-working sensation. this continues to happen with this car. i have only experienced it at very low speeds. *tr | |||
| 01/17/2010 | 300 | 2 | |
| I own 2010 toyota prius purchased in january 2010. twice i have encountered braking problem. in braking from 40 miles an hour for traffic congestion, i had to resort to last second additional foot pressure to avoid hitting the car in front of me. unlike the complains i have read in the media, my problem did not occur due to slippery road or any kind of bump. simply put, stopping required unusual foot pressure that i have never encountered in any previous vehicle. *tr | |||
| 12/08/2009 | 1000 | 1 | |
| 2010 prius iv - braking is delayed in wet conditions and when i drive over a bump or pothole. have to keep the brake pedal pressed and it feels and sounds like the engine accelerates before the brake come on. it lasts for few seconds and does not happen always. *tr | |||
| 01/08/2010 | 4000 | 1 | |
| Upon braking approaching a stoplight, my 2010 toyota prius hit a pothole and suddenly jerked forward, then returned to slowing. i kept my foot on the brake and the car stopped normally. *tr | |||
| 07/25/2009 | 1200 | 1 | |
| Toyota 2010 prius intermittent brake failure when braking on rough pavement- i purchased a new 2010 toyota prius on june 30, 2009 and have approximately 6400 miles on the vehicle. we experience two issues when braking on rough pavement. first is that the brakes seem to fail when applied in normal non panic stopping if there is wet or rough pavement. second when the first symptom occurs it is also accompanied by what feels like an increase in torque at the front wheels so that not only do the brakes feel like they are failing the car lurches forward from the added thrust. *tr | |||
| 12/20/2009 | 1200 | 1 | |
| Upon entering the road to my driveway there are a small series of dips and bumps or short sequence of small potholes from the rain. when i lightly apply the brake to slow down the pedal seems to have no braking affect when i go down into an come out of the first of the series of dips. the brakes then return to normal in my drive way. what i have been doing is avoiding the dips and thereby avoiding the eerie feeling that my brakes have failed. *tr | |||
| 01/02/2010 | 250 | 1 | |
| On december 29, 2009 we purchased a 2010 toyota prius. within a few days we experienced brake problems while backing up and applying the brakes lightly. the prius stopped abruptly many times before we were in a position to move forward. this has happened on a number of times; however, this behavior is intermittent. and on another occasion the car veered to the right while traveling forward and applying the brakes in an emergency situation. *tr | |||
| 02/05/2010 | 0 | 1 | |
| Toyota prius 2010 purchased july 2009. this vehicle has the braking problem which is described in the media. the brake intermittent release on uneven road surface is repeatable and has been symptomatic since new. *tr | |||
| 11/22/2009 | 1000 | 1 | |
| Started up morning after rainy day, drove down hill to stop sign. approaching stop sign i applied brakes and noticed brakes didn't immediately slow me down. only after flooring the pedal and feeling a metal on metal type reaction did i come to a stop. this problem has not repeated itself. *tr | |||
| 08/28/2009 | 100 | 1 | |
| Vehicle - toyota 2010 prius. this particular problem is ongoing yet intermittent. description - the brakes grab unexpectedly. happens after vehicle has been driven, parked and then re-started. we never know when it is going to happen. we have to completely stop the vehicle (not turning it off) and begin again. then the problem appears to go away. the description of the brakes grabbing is as follows: when the brake pedal is pressed ever so slightly, they grab and the car comes to a jerky halt. we try it again and it repeats. this is not normal vehicle behavior. i cannot answer incident date since the problem is ongoing and intermittent. i will insert the approximate fist incident. *tr | |||
| 01/01/2010 | 2500 | 1 | |
| Around the first of january, 2010, we had turned into the drive of our home in grenada, ms. as the drive curves in front of the house it is bordered by a brick retaining wall. we were going slowly and intended to apply the brake. instead of slowing the 2010 prius speed up and struck the wall. the resulting damage was between $4500 and $5000. i assumed we had mistakenly used the accelerator instead of the brake. i still believe that is exactly what occurred. however, with the issues around the prius, i wanted to report this incident. there was no injury and the car has been repaired with insurance proceeds. i'm happy to provide more information if you like. *tr | |||
| 08/30/2009 | 200 | 1 | |
| My 2010 prius has seemed to 'go airborne when i hit a certain spot on a local freeway exit ramp. when i apply my brakes at the end of the ramp, the brakes seem to miss as there is a depression in the pavement. it has happened more than once in that spot. i know it is the car because when i drove my saturn over that spot it never happened in three years of exiting there. i called my dealership two weeks ago and they had not heard about this problem. i called again this week and they were very aware of this. i did tell them that this was a potential hazard and hoped that all prius 2010 cars will be fixed. to be fair, i did not ask for them to repair my car since i had figured out how to prevent the skip (braking earlier, slowing more). but i think this should be part of a recall because this defect can happen quite out of the blue, which could cause an accident depending on road conditions. i experienced a similar incident last month on a slippery road (ice) but didn't make the connection. *tr | |||
| 02/05/2010 | 10000 | 1 | |
| Toyota prius 2010 model - bought july 2009 - periodically (taken place over a period of 6 months or so) when pressing the brake pedal, there is a short period of time when it is apparent that no braking action is taking place and than all of a sudden you can tell that the braking action has taken place. it is scary when this takes place. i do have an appointment with the dealer this coming week. *tr | |||
| 12/15/2009 | 2000 | 2 | |
| On two occasions my 2010 toyota prius 3 brakes have failed as described in recent ny times article. i was driving on rough road with pot holes and man hole covers, slightly wet pavement and there was a momentary loss of braking (sort of like the car was hydroplaning). i purchased my prius in november 2009. *tr | |||
| 08/05/2009 | 1000 | 1 | |
| Driving our 2010 toyota prius over bumps and potholes the car braking system is not working properly. it doesn't stop immediately after the brakes are pressed. we have brought the car in for service and toyota they say the car is fine. *tr | |||
| 01/01/2010 | 100 | 1 | |
| Experienced exact same temporary loss of braking after driving over bumps, pot hole as described in your investigation. have experienced this problem repeatedly since first days of ownership. *tr | |||
| 01/13/2010 | 1000 | 1 | |
| Noticed the braking on my 2010 prius has a few problems every now and then. when pressing down on the brake pedal it feels like the brakes aren't working or that the vehicle is accelerating. i live in fairbanks, alaska and having brakes that work is especially important here where the roads are covered with ice six months of the year. i called the toyota dealership and informed them of the problem and they told me that there wasn't a recall for the prius and transferred me to the main toyota line to answer my questions, but that call ended due to high phone call volume. *tr | |||
| 11/12/2009 | 1 | ||
| February 5, 2010 office of defects investigation national highway & traffic safety administration washington dc re: on-line customer complaint toyota prius 2010 dear madam or sir: my husband and i purchased a prius 2010 in september 2009. in november 2009, i experienced a sudden jolting forward of my new car as i pulled into my driveway. shortly thereafter, as i was driving on a major commercial thruway in my area (route 10), i experienced a similar unexpected acceleration while i was stopping at an intersection light (although milder). i was concerned and alarmed by the problem and called toyota morristown, new jersey (the car dealer where we bought the car) to report the problem. i was told the problem was not serious and that i did not need to be concerned about it.. while i did not really believe the dealer | |||
| 06/15/2009 | 200 | 1 | |
| Brakes grab too quickly, jolting the car to a stop. *tr | |||
| 01/21/2010 | 500 | 1 | |
| I recently purchased toyota prius 2010 and already have an accident due to faulty brake system. when the brake is applied, the care does not slow down instantly but kind of accelerates and the slows down which is a major safety hazard. *tr | |||
| 02/02/2010 | 2500 | 1 | |
| I have a 2010 prius. if something happens where i need to use my brakes firmly and the road is not 100% smooth the brakes stop working for a few seconds. i thought it was something i was doing, but i am realizing now its not, its something in the car. in wet weather it does it even more. i have had more then 10 instances commuting 50 miles a day where i thought i was going to rear end someone. the brakes don | |||
| 11/15/2009 | 3000 | 4 | |
| Deceleration, rough road surface, brakes fail for a short time. this has happened 3 or 4 times since purchasing the car. i did mention this to my service person on tuesday feb 2 when i was at the dealer for a different issue and he said he hadn't heard of issue on my prius, after hearing the new on wed that this is a known problem i called dealer back and will have car inspected monday morning feb 8. *tr | |||
| 01/05/2010 | 3000 | 1 | |
| I have a 2010 toyota prius purchased at a dealer in boston in july 2010. on half a dozen occasions while travel at speeds < 30 mph and going over either a bump, ice patch or metal on road (i.e., sewer), when applying brake my car has sped forward for a few splits seconds. it is a sensation of a momentary loss of control. *tr | |||
| 11/16/2009 | 9800 | 1 | |
| We have a 2010 prius. my wife hit a pot hole when she was making a right turn. when she stomped on the brake the car didn't stop and it drove into the curb smashing the frp ground effects molding below the passenger door and behind the right front tire. i thought this was her fault but i believe we have a problem with the braking on our car. can i return this car? | |||
| 12/01/2009 | 7000 | 1 | |
| Experiencing same braking issue with my 2010 toyota prius that has been publicized over the last few days. i've noticed the momentary lapse of braking power on icy roads when trying to suddenly stop. i bought my prius in july 2009. *tr | |||
| 01/31/2010 | 3220 | 1 | |
| We have a 2010 toyota prius purchased in july 2009. from the start, we noticed an issue with the brakes seeming to skip as you applied pressure at lower speeds. two calls to the dealer about this were met with the phone equivalent of blank stares and we got nowhere. with the recent news reports describing the issue we found, i called two toyota dealers yesterday in my area about getting it fixed and they were absolutely no help at all. one said they did not know what to do and had received no information from the company and the other seemed not to be even aware of the brake issue, the service supervisor kept speaking about the accelerator issue which is different. we have been limiting how much we drive this car because we are so concerned about the brakes. *tr | |||
| 11/15/2009 | 5600 | 3 | |
| When driving on wet surfaces, my 2010 toyota prius hybrid will occasionally skid when the brakes are applied. this seems to happen at speeds under 25mph and only on wet surfaces. the first incident occurred when i was approaching a stop sign at a low speed. when i applied the brakes, the car began to slow down when it suddenly accelerated without cause. the acceleration only lasted for a second or two before the brakes started working again. i had my foot on the brake pedal the entire time and applied even pressure. this issue also occurs often when pulling into the underground parking garage of my condominium building. when the ramp is wet, this problem will often occur. to avoid this occurrence when pulling into the garage, i must proceed at a cautious pace, 5-7 mph. this is very disconcerting because i must make a right-hand turn with three feet from the bottom of the ramp to avoid hitting the wall of the garage. the last occurrence was on january 29th at 7pm. the roads were wet. as i approached a stop light to make a left-hand turn, i applied the brakes as i normally would in such conditions. the after the initial deceleration, the brakes felt like they had slipped and i began to accelerate (as described before). i had to turn into the adjacent lane to avoid hitting the car in front of me before the brakes were fully applied. i all, this problem has occurred three times while driving on wet roads, and 8+ times when driving down the wet ramp to my underground garage. i have contacted the toyota dealership where i purchased my vehicle to make them aware of this problem and was directed to file a report to nhtsa. i also called the toyota customer service line and was unable to read a representative. *tr | |||
| 02/05/2010 | 4600 | 1 | |
| At 15 mph and braking, brakes disengage for less than one second after hitting a road imperfection (an old metal and rubber sensor placed about 10 or 15 feet from crosswalk) that is perpendicular to driving direction. at 35 mph, brakes disengage when braking and crossing a bridge/overpass connector plate. *tr | |||
| 01/10/2010 | 11000 | 1 | |
| Antilock brakes don't seem to work effectively on my 2010 prius, brought june 2009. i've been driving for 48 yrs in upstate new york; an experienced driver in the snow/ice roads. this 2010 prius is dangerous to drive on snow/ice roads. i thought maybe the tires were lousy or that i'm not accustomed to antilock brakes. but now that i'm hearing about this very problem with other 2010 prius, i'm convinced that the problem is with the car's antilock brakes. if there's any snow on the road, i know that i need alot of room to complete a stop and this is not going fast at all. i've had two near crashes so far and at very low speeds. *tr | |||
| 12/28/2009 | 7500 | 2 | |
| I have a 2010 toyota prius. the la times reported 124 reports of brakes failing, i wish to add my experiences. twice, while i was braking, i experienced a sudden surge, a loss of braking - an increase of power. i was able to stop the car with an automatic slamming on the brakes. no accident, no injury occurred but i now refuse to drive the car. the what if factor is too high. i couldn't live with knowledge of possible harm to someone caused by my driving my prius! toyota had better set this straight - i'm shocked they haven't recalled the car. i'm perplexed your agency hasn't insisted!! *tr | |||
| 10/20/2009 | 200 | 1 | |
| My 2010 toyota prius slips when the brakes are applied over manholes, potholes, and uneven surfaces (differences in pavement, etc), at which time i have no control over the vehicle. this occurs several times a week, and at low speeds - since i'm applying the brakes, the speeds have been 30 mph or less. i took the car in for a test drive 2/4/10, however, no potholes were available during the test drive, and the diagnostic check via computer indicated no error messages have occurred within the system. i was told there were no problems, and that the brakes are working correctly. *tr | |||
| 01/30/2010 | 11000 | 1 | |
| Prius 2010 owner. i was braking to enter a parking lot from the road. as i entered the lot, the car went over a bump in the pavement and the brakes failed for a very short instance. it didn't put me in danger but it was an immediate scare. (this happened just a few days before the media reports of this issue came out, so i related with the repots when they came out.) *tr | |||
| 01/28/2010 | 3000 | 1 | |
| 2010 prius brakes grab abruptly coming to a complete stop going through an intersection at about 20 mph. i was almost rear-ended and suv behind me had to pull aside to keep from hitting me. also, when backing the brakes will grab repeatedly making vehicle jerk - and makes driver look like we cannot drive. see 'prius chat' site for many other like incidents by other drivers and speculative solutions. this also happens when pulling forward from parking and hit brakes in order to make a 3-point turn (example) etc. this happened the very first time i got into the car with the salesman sitting beside me, and he remarked what good brakes they were. i thought it was just an annoying trait of the car (being a hybrid) until the intersection incident last week - and the new brake news on the prius. this needs to be addressed as part of the defect before a pile-up collision is caused. it almost seems as if there is no 'power' to the brakes in a 'gliding' type mode. *tr | |||
| 12/10/2009 | 1 | ||
| 1. i bought my 2010 prius new from a toyota dealer in early december of 2009. 2. when i am applying the brakes to slow down, if i hit a pothole, bump, or speed bump the brakes will stop working and the car will lurch forward. i have experienced this brake failure at least 20 times, with varying severity. it can happen any time i am trying to slow down and hit a bump or pothole (e.g.. trying to slow down because the car in front of me is stopping, or because i am approaching a stop sign or red light, or because i am turning or going into a curve). so far, this brake failure has not caused an accident but it has caused me to come very close to hitting the car in front of me on one occasion. i have come to no longer feel safe driving my prius because i cannot trust the brakes when there are bumps or potholes in the road. 3. i brought my prius to the service center of the dealership where i purchased the car. i brought the car in on 2/4/2010. that evening when i spoke to the mechanic, he told me that the brakes are normal and that he did not do anything to fix my car and that i could pick my car up. i then spoke with the manager and told him that i did not feel safe driving the car until they fixed the braking problem. my car is still at the dealership and has not been fixed because they are refusing to acknowledge that the brakes are not functioning safely. *tr | |||
| 10/11/2009 | 500 | 1 | |
| When applying the brakes before going over a pothole i noticed that my 2010 prius appeared to speed up for a split second rather than slow down. this happened when i went over the pothole. i also noted the same sensation when braking behind cars at a stop light. if i hit a bump the car seems to slightly accelerate rather than decelerate. additionally when driving slowly down a icy hill and applying the brakes, there was a delay in any braking. when applying the brakes harder the car did decelerate eventually. this has happened a number of times, but is hard to replicate on demand. *tr | |||
| 10/11/2009 | 500 | 1 | |
| 2010 toyota prius. there is a problem with the brakes when i am on a bumpy road and want to come to a complete stop. the problem doesn't seem to happen when slowing over a bumpy road, only when coming to a complete stop. the car almost seems to skid a bit and i definitely do not feel as if i have control of the car when this happens. while it's only a split second, it's not a very comfortable split second. thankfully i have not been in this situation with another car in front of me. *tr | |||
| 01/27/2010 | 2000 | 1 | |
| I am copying below an incident with my prius' brakes that reported to toyota earlier this week (confirmation of receipt from toyota and then my description of event): _____________ thank you for contacting toyota motor sales, u.s.a., inc. we appreciate your consideration and hope to have your email addressed as quickly as possible. our current office hours are monday through friday from 5 am to 6 pm and saturday 7 am to 4 pm pacific time. if you need immediate assistance, we recommend you contact the customer relations manager at your local toyota dealership. discussion thread customer 02/03/2010 01:04 pm i have heard/read of a few instances of braking issues with prius'. i would like to let you know i experienced this problem the other day. i was approaching a stop light at a slow rate of speed (~20) and braking lightly when i went over a small bump across the road. the brakes/pedal immediately felt useless. i quickly let up on the petal and hit the brakes much harder and i was able to safety come to a stop without any danger or locking the brakes. i wanted to be sure to let you know and be on record of this issue with my new prius which i love so far short of this incidence. is there a known issue or fix that i can have my dealership look into? *tr | |||
| 09/24/2009 | 2400 | 1 | |
| Own a 2010 prius. have experience intermittent brake issues. the brakes seem to not function properly when they applied over uneven surfaces. the car feels like it is sliding or hydroplaning for a brief moment, then the brakes catch again. i was involved in an accident on september 24, 2009 and never thought about the issue with the brakes. *tr | |||
| 01/05/2010 | 4000 | 2 | |
| When initially starting the car (prius 2010) to back out of a parking spot and applying the brakes, i have noticed a loss of braking (i have pressed the brake pedal to the floor with no noticeable braking). when the brakes are reapplied, the brakes grab and cause sudden, jerky stopping. this has occurred twice. *tr | |||
| 07/01/2009 | 20 | 1 | |
| 2010 toyota prius. when first starting the car before the gasoline engine engages, the brakes grab suddenly when applied (e.g. backing out of the garage or leaving a parking space), and continue to do so until the gas engine starts. also, there is momentary loss of braking when going over bumps (like speed bumps.) *tr | |||
| 12/15/2009 | 18500 | 1 | |
| I own a driving school in livingston nj, i purchased a 2010 prius in july 2009. i also notice a delay in the braking system while driving down a hill one day. this occurred while i applied the brakes. i went over a bump or pothole. it seemed like the car actually accelerated momentarily and i had to keep applying the brakes to the floor and hoped that there was enough distance to stop. i remember going down a hill, applying the brakes and the car was slowing down, then i went over the bump or pothole in the road and the car took off like i was accelerating. i felt like i had lost control of the vehicle for at least 2 seconds or 20feet but fortunately no other vehicles were near by. i now make sure that i brake sooner, and allow more following distance. especially in bad weather. anti-lock brakes seem to have their own unique problems in that the wheels don't lock but those on the prius seem a bit more noticeable because they are electric and the pads don't slow the car like normal brakes. (at least that what my salesman told me.) he said that the pads will last over 200,000 miles. hopefully i'll be able to drive it that long without an incident. but the problem now iis that parents may not want their kids to learn with my driving school, even though there have been no real problems with training teenagers yet. *tr | |||
| 01/27/2010 | 4820 | 1 | |
| Momentary brake failure at slow speeds 2010 prius. *tr | |||
| 11/01/2009 | 1000 | 1 | |
| My car (2010 toyota prius) briefly accelerates when i hit a small bump. it feels like it is in the abs system. i called my dealer shortly after i purchased the car and they said they have had no complaints of this nature. i went on a prius chat forum and there were many with the same complaint. *tr | |||
| 01/27/2010 | 1 | ||
| While going over a speed bump, my 2010 toyota seemed to accelerate while the brake was depressed. this has occurred on other occasions. *tr | |||
| 01/26/2010 | 1 | ||
| We have the same braking problem with our 2010 prius as described recently in newspapers. there seems to be a momentarily lapse of braking power when going over slippery or bumpy surfaces. it has happened numerous times in the past few months (well over 25 times). *tr | |||
| 01/01/2010 | 6300 | 1 | |
| While engaging the brake, brakes seem to release for 1 sec while holding down brake while hitting bump or whenever traction control system is engaged. *tr | |||
| 08/31/2009 | 50 | 1 | |
| When i apply the brakes on this vehicle on a bumpy road the brakes either pause for a second to apply or the antilock systems seems to engage and dis-engage causing a serious distraction while braking. this occurs daily as the area i live in is mainly brick paved streets. *tr | |||
| 07/01/2009 | 0 | 1 | |
| My wife experienced braking anomalies immediately after beginning to drive her new 2010 prius. i attributed these to the way the car drives and i haven't noticed anything the few times i have driven it. but this is something she has been reporting since she first began driving it (6 months) and she is a perceptive person (m.d.). with discussions of whether to recall i figured i should report the problem. *tr | |||
| 01/05/2010 | 1800 | 1 | |
| I purchased a 2010 toyota prius in october 2009. i had two incidences with the brakes that were similar to what has been reported in the papers. the first was within the first six weeks of owning the car. i was slowing down to enter a gas station and the car accelerated. i had been applying the brakes already, but the acceleration took me by surprise. i applies the brakes more forcefully and the car slowed. the second time i was on my way to the dealer for a get to know you with the maintenance dept. i was descending a hill with the brakes being applied. again the car sped up and i braked more forcefully and it slowed. it was scary. my husband said this happened once when he drove the car, but he did not remember the details. when we told the dealer, they said they were not aware of any issues with the 2010 prius accelerating or braking, but that they would look at the car. of course, this happened three times over three months. they didn't find anything wrong with the car. someone else at the meeting suggesting issues with the programming, but we were just meeting with the head of the repair department. they only know what toyota is telling them. now i see in the paper that toyota corrected the issue in their new prius. so they knew about this and didn't tell us. this is the first and last time i will buy a toyota. *tr | |||
| 12/15/2009 | 5000 | 1 | |
| We own a 2010 prius purchased oct 2009 and are experiencing the same problems described in the press for the brake failure problem car jumps, or brakes slightly unresponsive, temporarily loss of brake power. problem happens at slow speeds but seems intermittent. no action has been taken, toyota not yet contacted. *tr | |||
| 11/15/2009 | 100 | 1 | |
| I have brake problems with my 2010 prius. now that i see it's in the news i realize i'm not the only one. the prius has issues when i'm braking and i go over any type of a bump in the road, or i go over a pothole cover. really there is a braking problem when i am braking and the car is driving over different road surfaces, or there is bad weather. the car lurches forward- almost feels like it's skipping a beat. it makes my heart jump, similar to a jolt. i feel every time that i will get into an accident, but i haven't yet... thankfully. this is a problem with the car and needs to be addressed immediately before someone dies, or gets seriously injured. this happens on average about 1-2 times a week. i drive approx 150 miles a week. *tr | |||
| 12/05/2009 | 5000 | 1 | |
| I own a 2010 prius, that i purchased september, 2009. in december i was driving in town, and came to a stop. when i came to the stop sign, i put my brakes on and hit a pot hole at the same time. it felt as though the car jerked forward and it was a second where i felt there was no brake. *tr | |||
| 01/07/2010 | 3943 | 1 | |
| After applying brakes at a bumpy intersection the car s brakes were non functioning and it traveled into the intersection. this has happened on three separate occasions. *tr | |||
| 12/04/2009 | 1 | ||
| We purchased a 2010 prius in august of 2009 and have had the following recurring issues: 1. loss of braking when slowing down over rough or uneven pavement, gravel, wet leaves, snow, ice, cracked pavement, pot holes... the brakes engage for a second, and then we experience no braking at all for number of seconds. we took our prius into jon lancaster toyota in madison, wi where we purchased the vehicle and told the mechanic of the braking issues we were experiencing . he checked out the vehicle and said he could not find any issues with the braking system and said that he had never heard of this problem and neither had toyota. this lack of braking resulted in a rear end collision in december 2009. my husband was driving at very low speed in town one evening and this lack of braking issue occurred and he slid into another vehicle. my husband pumped the brakes four times and each time this delay in braking occurred. there was no braking happening at all. the car was slowing down faster when the brakes were not applied, than when the brakes were applied. there was fresh snow on the road. there was a dane county sheriff at the intersection and my husband and the person he hit ran the incident by the state patrol who agreed that it was appropriate for the two parties involved in the accident to exchange insurance and contact information and leave the scene without calling the local police. there was damage to our prius front bumper, and to the back bumper of the other vehicle. 2. occasionally when starting up the prius, the brake feels hard and can't be depressed all the way. if we try to drive the vehicle, the brakes grab and jerk the car violently. the only solutions seems to be to turn the car off and restart the car. *tr | |||
| 08/20/2009 | 1000 | 5 | |
| I am the owner of a 2010 toyota prius, since july 2009. i have had several (approx 5) incidences of odd behavior with my brakes. it has happened each time when i go over a bumpy surface and apply the brake pedal. the car seems to lunge forward for an instant and then maintains. several weeks back this happened and when i researched this on the net i found many others had this same experience. with the recent events, i felt it necessary to make this report. *tr | |||
| 12/01/2009 | 100 | 1 | |
| I purchased a 2010 toyota prius in november 2009. about 10 times since then, i've felt the sensation of 'going airborne' when braking on a speed bump or uneven pavement. the sensation is momentary, and the brakes have always 'recovered'. there was only one time when i thought that an accident might happen, when i needed to brake suddenly behind another car. *tr | |||
| 01/05/2010 | 10517 | 1 | |
| I currently own a 2010 toyota prius and over the past few month i've noticed a momentary loss in my braking when turning corners or coming to a stop. i'm alittle concern that this might be a degenerative issue that may cause a serious accident at high speeds. *tr | |||
| 02/04/2010 | 2800 | 1 | |
| Bought 2010 toyota prius in nov 2009. over 20 times since i bought the car, i have experienced split-second loss in braking power with my hybrid car when driving over bumpy or slippery roads. this happened again yesterday. anxiously await a recall / repair. *tr | |||
| 02/03/2010 | 3000 | 1 | |
| This is to report that my prius 2010 car has experienced the delayed brake problem. i find this happens when i am driving over a certain road that has some small bumps. i am going around 20 or less stopping for a stop light and i get a very slight delay in braking, less than 1 second i think. i have never had any trouble stopping in the required distance before the stop light, it just gets your attention and needs correcting by toyota. *tr | |||
| 08/26/2009 | 500 | 4 | |
| 2010 prius ii with 2070 miles. purchased 8/2009. when going over a bump while stepping on the brake the car seems to act as if there is no brake on the downside of the bump. it feels like a slight acceleration then the brake engages.. this has occurred at least 4 times, but does not happen in every instant of a similar situation. *tr | |||
| 01/10/2010 | 800 | 3 | |
| I have a 2010 prius purchased in dec 2009. i have experienced the lurching forward when going over bumpy roads (including potholes) when there are icy conditions and my foot is on the brake. this has happened at least 3 times. *tr | |||
| 11/18/2009 | 5000 | 1 | |
| Toyota prius 2010. brakes not working when on slippery service and when hitting bumps. *tr | |||
| 01/28/2010 | 1 | ||
| An inconsistent feeling when applying the brakes over bumpy roads. *tr | |||
| 12/20/2009 | 1 | ||
| I want to file a complaint about my 2010 prius, i bought my prius this past nov. at first when i feel the sudden acceleration i thought its me thinking too much. but this happen more than once. it is a unpleasant feeling. the sudden acceleration happens to me when driving on a downhill going over a bump or a hole in the road. *tr | |||
| 12/15/2009 | 1200 | 1 | |
| Brake grabbing/seizing while reversing toyota 2010 prius ii. *tr | |||
| 12/15/2009 | 1000 | 1 | |
| The brakes on my 2010 toyota prius do not appear to work properly. they are not consistent in stopping the vehicle. on occasion, when applying the brakes they do not appear to slow the vehicle immediately. even after applying more pressure on the brake pedal, the vehicle continues to roll. eventually after pressing very hard on the pedal the vehicle slows. the biggest issue is this does not happen all the time. it presents a problem when it unexpectedly happens. *tr | |||
| 02/02/2010 | 400 | 1 | |
| 2010 prius. purchased 11/23/09. when slowing down to turn into the parking lot at work, there is a manhole cover right before my turn, if my tire goes over manhole cover my car bolts forward as if i step on the gas. this happens 1-2 time a week and has been happening for since december. 18-20 occurrences to date. there was one other time when stopping for a traffic signal and i hit a slight bump and my car bolted forward. i always was quick to press the brake hard and the car would stop. the last time it happen was 2/2/10. i am bringing it in for service 2/6/10. *tr | |||
| 01/10/2010 | 3000 | 1 | |
| I own a brand new 2010 toyota prius with approximately 3,000 miles at this point. i have experience on a number of occasions a complete loss of braking ability when i forcefully applied the brakes in order to come to stop while traveling over a pothole or a serious pavement deformation. my wife has experienced the same problem on a couple of instances too. the loss of brakes is very short in duration but is absolutely frightening since the car travels quite a bit before the brakes take effect again. on one occasion the prius was about one quarter of a car length into the intersection before it came to a complete stop. this happened while traveling only 35 mph on a residential street and attempting to come to a full stop at an intersection. fortunately no other cars were traveling through the intersection at the time. i attempted to call toyota about this issue but it is impossible to get through to a live person at this time due to the volume of calls generated by the recall. *tr | |||
| 02/04/2010 | 1 | ||
| 2010 toyota prius the braking system does not work when the brakes are applied over bumpy or rough roads. occurs everytime the brakes are applied at a particular intersection. i have owned the vehicle since august 2009. the problem has existed the entire time i have owned the vehicle. i noticed the problem, it raised some concerns, but recent articles have indicated this is a severe issue. *tr | |||
| 01/10/2010 | 12573 | 2 | |
| I drive a 2010 toyota prius. on multiple occasions while attempting to slow down on rough surfaces, the brakes temporarily stopped working for 1-2 seconds even though the brake pedal was depressed. the most recent incident occurred while exiting the highway and attempting to slow down quickly on rough pavement. luckily, there were no other cars in front of me or there would have been a collision. if a car had been in front of me on any of the occasions then there would have likely been a collision. *jb | |||
| 08/10/2009 | 1000 | 2 | |
| On my prius 2010 (that i bought in july 2009) i noticed that when i hit a pothole, and had the brakes pressed; the car quickly accelerated for a split second. this has happened twice. *tr | |||
| 11/14/2009 | 4234 | 1 | |
| 2010 toyota prius, package 5 have owned for 6 months or so. when attempting to brake and go over pot holes or irregular road, the brakes disengage and the car continues forward for a longer distance than desired. this has not resulted in an accident but a concern. has occurred on several occasions since taken ownership in september. *tr | |||
| 01/30/2010 | 8000 | 1 | |
| 2010 prius feels like brakes not working bumpy or rough road, also brakes grab real bad when backing up some times. nothing has been done to fix it. *tr | |||
| 01/15/2010 | 3000 | 1 | |
| I bought a 2010 toyota prius in august 2009. after hearing on the radio and tv this week about other buyers experiencing the same braking issue i have been occasionally experiencing, i decided to let you know it's happening to me too. namely, there is a moment when i am braking at a speed of about 15-25 mph, in preparation to slow down for a right turn at one particular intersection--it has a large pothole. if i roll over the pothole with my front right tire, the car seems to speed up for a few seconds--instead of slowing down--and there is nothing that applying more brake pressure can do. sometimes i've noticed this kind of problem when trying to slow down on a patch of black ice, but that seems typical of the difficulty of braking on black ice. the pothole issue happens invariably at that particular pothole, so i have had to swerve to avoid rolling over it. there are other potholes that i've noticed can cause me this problem, but none with such frequency as that. the ground is level there, so it's not a downhill problem. *tr | |||
| 01/23/2010 | 1 | ||
| Regarding my 2010 toyota prius: brakes did not engage. it was raining; i was slowing to make a right turn into a parking lot and merged into the turn lane, applied the brakes just prior to driving over a drainage grate, and car's brakes did not respond. i released my foot from the brake pedal and then re-engaged it, whereas the brakes responded. incidents very similar to this happened two prior times when backing out of my driveway (not raining). the brake warning light also goes on unexpectedly while idling at a traffic light or when coasting to a stop (not stopping suddenly). when this happens, i have to place the car into park and then back into drive. i inquired about these issues with the toyota dealer and have been advised that they have had no complaints of this nature with their 2010 priuses. *tr | |||
| 01/28/2010 | 8800 | 1 | |
| When trying to brake on ice, the car jerks forward. it happened several times before jan. 28th, as well. today (feb. 04, 2010) ... braking on bumpy road with slight sink hole before railroad tracks and it jerked forward ... no train on the track and no car in front of me, so i was fortunate not to have a serious accident with my grandson in the car. i have informed boulder toyota. *tr | |||
| 08/22/2009 | 500 | 1 | |
| Re: 2010 prius braking issues beginning within the first 500 miles of owning vehicle. when first start up vehicle brakes are overly sensitive, making it impossible to stop the car smoothly. i have been able to correct the problem by shutting off the engine and restarting the car. this problem occurs randomly and has occurred twice within the last week. i have also had two times where the car has had an incredible surge forward, so strong that my head was thrown back into the head rest. the surge has been momentary and has the feeling like going up a steep incline on a roller coaster when it first accelerates. because these events were such a surprise and so short in duration i cannot recall the conditions (whether i was braking, coasting, or on the gas pedal) but i do know i was going at a slow speed. i have had two occurrences of this surge both within weeks of each other in the fall of last year. i took my car into the dealer regarding both of the above issues in the fall of last year, but they could not get the car create either of the above problems. at that time i asked if they had any similar complaints and they said they had heard of no other such complaints. when the car was taken in to the dealer for routine service in november my husband again asked about the oversensitive braking issue and again no problem was found or solution provided. the oversensitive brake and the surge create physically and emotionally uncomfortable conditions. no damage has occurred because of these problems. i have driven the car with under these conditions figuring until there are complaints it would be hard to recreate these problems at the shop. when i first took my car in to address these issues i told the dealer it felt like it was a computer glitch or electronic problem rather than mechanical. and asked it might show up on the cars computer diagnosis system. *tr | |||
| 12/15/2009 | 15000 | 1 | |
| Toyota prius 2010: driving over sewer grate while braking and car loses momentary grip and slides over surface without slowing down, even though braking. has happened several times on the same location / sewer grate. *tr | |||
| 01/07/2010 | 2600 | 1 | |
| At 10mph on the freeway, my 2010 prius hesitated to brake properly and as a result my left fender made contact with the vehicle in front of me. as result, my insurance increased, i had to pay $500 deductible to repair my bumper. the back brakes have squeaked going in reverse since purchase in november 2009. *tr | |||
| 12/30/2009 | 13000 | 1 | |
| With our 2010 toyota prius, my wife had an accident where the vehicle slid into a snow bank within 1 block of our home. just prior to this, i noticed that the vehicle's anti-lock brake did not seem to function properly. i used to work for general motors in michigan and know the sound that comes from working anti-lock brakes. the anti-lock brakes used to work earlier in 2009...i had to stop on a wet paint stripe and the anti-locks made the distinctive ratcheting sound. in december 2009, that sound and the loss of braking traction was evident. not until i see that there is news in the media recently about the prius did i think to lodge a complaint. this accident caused me (and my insurer) $1,024 in damage to our front bumper. *tr | |||
| 01/20/2010 | 1000 | 1 | |
| 2010 toyota prius experiences brief loss of braking when traveling downhill on same section of the road. i've experienced this about 5 or 6 times and it's been very noticeable. even with firm brake pressure, the vehicle seems to suddenly accelerate for a fraction of a second. it always seems to happen on the exact same section of the road, which is on a downhill grade. *tr | |||
| 01/01/2010 | 250 | 1 | |
| Braking failure on 2010 prius on rough or uneven driving surfaces. no fix has been attempted or made. this is another example of the widely reported problem in the 2010 prius. *tr | |||
| 01/15/2010 | 1000 | 1 | |
| Toyota prius 2010 - i have experienced irregularities with my brakes since i purchased this car on december 28, 2009. i attributed it to my lack of experience driving a car with anti-lock brakes. however, i now believe that these problems are related to the current investigation of prius brakes. two things happen: (1) several times when i place my foot on brake too hard, the car propels forward, (2) under slick conditions and i press the brakes, the brakes take too long to respond and the car continues to move. *tr | |||
| 12/17/2009 | 1200 | 3 | |
| Brakes fail entirely when the car goes over a small bump or crease in the road. its obvious (now) that the dealership was aware of this and tried to cover it up, as their immediate response was that it was normal and was just the abs gripping (they didn't even want to write my complaint on my service report), despite my repeated assertions that i am well aware of the difference between abs gripping and no brakes. brakes failed on 3 occasions before the vehicle even had 4,000 miles. *tr | |||
| 09/04/2009 | 800 | 1 | |
| I have a 2010 prius, which i purchased in august 2009. i noticed when i apply the brakes if i am at a pothole,or uneven road, there is a slight pause before the brakes engage and stop the car. this has occurred at least 50 times since i purchased the car. *tr | |||
| 12/12/2009 | 4900 | 1 | |
| On december 12, at approximately 6:15 pm while traveling east bound on i-30 near downtown dallas, i rear ended the car in front of me. i was traveling at approximately 12 mph and the roads were dry. i was not tail gating the car in front of me. the car in front of me was cut off and he immediately hit his brakes. i did the same. my car began to buck and jump and i hit the car in front of me causing over $10,000 worth of damage to my 2010 toyota prius. my car was towed and repaired by toyota of dallas. i reported the incident to the dealership as well as to state farm. the dealership has told me over and over again that there are no problems with the brakes in my vehicle. they claim i must have been traveling too fast or too close to the vehicle in front of me. i was not issued a citation by the sheriff. my air bags did not deploy as i was traveling at approximately 12 mph. i continued to complain to toyota about the brakes and they sent an engineer to examine my vehicle on tuesday, february 2 who again told me that there were no issues with my brakes. the very next day, the ntsb began an investigation into the brakes, and this morning, february 4 (2 days after the engineer inspected my vehicle) toyota announces that there are issues with the braking system in my vehicle. i continue to experience the same issues with my brakes. i am afraid to continue to drive the vehicle. *tr | |||
| 01/15/2010 | 2000 | 1 | |
| 2010 toyota prius loosing braking power for short period over a bump. can repeat it consistently over the same area on the street very close to my working place. *tr | |||
| 01/28/2010 | 4200 | 1 | |
| I have a 2010 prius v vehicle. every time i approach a stop sign that has a fairly deep transverse rut in the pavement in front of it, my head snaps back as the car lurches forward. this appears to be the momentary loss of braking that is in the news for the 3rd generation prius. it is extremely repeatable...it happens every time. the date below is only the most recent time i've driven on that road. i have not had an accident. *tr | |||
| 06/10/2009 | 1 | ||
| My 2010 prius, which was purchased in may has had the very brake issues that are being reported. when a bump is hit, the car jerks forward quite unexpectedly when the brakes are applied. i thought it was just my imagination or that i hit a slick spot, but it has happened many times. the fact that toyota knew about this and hid it from the first prius owners is unbelievable. since they have been fixing it on newer models and did not tell owners of the first ones off the production line t, i think a class action law suit should be undertaken. i am very angry and would like some mechanisms for getting rid of this car, given toyota's deception. *tr | |||
| 09/01/2009 | 1 | ||
| So this is regarding the 2010 prius i recently purchased. i bought the car in august of 2009. the only problem i have is with the brakes. sometimes when i hit a bump or pothole in the road, and i'm stepping on the brakes, i feel a sudden acceleration even though i do not step on the gas pedal. if i keep my foot on the pedal i will stop eventually, but the sudden onset of acceleration is quite scary. this happens from time to time and i can never predict it. *tr | |||
| 01/26/2010 | 475 | 1 | |
| Braking system. i notice that as i pull up to a stop sign while driving, i apply the brakes lightly to slow down gradually. i have noticed multiple times that when i hit a bumpy spot or a pothole, the car loses it braking capacity. i mash the brake down harder to slow down if necessary and then it works fine. i don't know if it is related to the car's ability to absorb kinetic energy and recharge the hybrid battery or what. i also noticed one day when it began to snow heavily, the roads were very slippery and i almost skidded off the road as i applied the brakes. *tr | |||
| 01/15/2010 | 500 | 1 | |
| We purchased our toyota 2010 prius v model in january 9, 2010. during the first week of driving we noticed that if we apply brake while turning left it will skit forward just missing the ditch in our drive way or off shooting in the traffic light crossing the median. these incidents were reported to the local toyota dealer and the dealer tech informed us that prius is not in recall and when they test drive they do not find anything wrong. well, we said that it does not appear every time but it does very often. their explanation was that it may be because of the snow as it is winter and being michigan roads not cleared on time. *tr | |||
| 09/01/2009 | 1 | 1 | |
| Brakes on 2010 toyota prius do not work properly when backing up. dealer checked brakes and could not find a problem. *tr | |||
| 02/04/2010 | 10514 | 1 | |
| I currently own a 2010 toyota prius and over the past few month i've noticed a momentary loss in my braking when turning corners or coming to a stop. i'm alittle concern that this might be a degenerative issue that may cause a serious accident at high speeds. *tr | |||
| 10/20/2009 | 1 | ||
| My 2010 prius has trouble braking when i'm traveling at slow speeds over uneven or slippery surfaces. it's as if the brakes lose traction/slip. i first reported this problem to toyota in october 2009. i sent emails and placed phone calls and brought it to the dealership repeatedly. they say they were unable to replicate the problem and can't fix it till they replicate it. they have no solutions for me. i called toyota today and they said they did not refer my complaint to nhtsa...even though i filed it with toyota months ago. they say its not their responsibility to share my complaint with the government. *tr | |||
| 07/15/2009 | 300 | 1 | |
| I have a 2010 toyota prius. on a daily basis i drive over two separate speed bumps on the steep downhill-incline entrance to my office parking garage, at a low speed (always less than 10 mph). upon going over each bump, my brakes (which are engaged due to the steep downhill incline) disengage briefly and then re-engage. sometimes the brakes also momentarily disengage when i am continuing down the ramp in the parking garage, even in the absence of a speed bump. this seems to happen most often when i am turning. each time the brakes disengage, the car slips and i feel it is not under control. i have tried to avoid these symptoms by keeping my speed extremely low in the parking garage (5 mph), but that only works sometimes. the date of incident is really on a daily basis every day i drive into work. this symptom has occurred consistently since i purchased the car in june, 2009 and continues to this day. the brake system i am referring to is the brakes that are activated when i depress the brake pedal while driving. *tr | |||
| 12/13/2009 | 400 | 1 | |
| Brief braking interruption on wet, uneven pavement. 5 - 6 incidents from nov through jan - 2010 prius bought at the end of oct 2009. *tr | |||
| 01/01/2010 | 1 | ||
| Confirmation of brake issue with prius. car briefly accelerates on rough patches or going over potholes when using brake. no accidents. *tr | |||
| 11/28/2009 | 800 | 1 | |
| While driving my 2010 toyota prius, i notice that at times the car fails to brake adequately. this happens when braking over uneven pavement. the feeling is as if the car speeds up a little. it's disconcerting. *tr | |||
| 11/05/2009 | 50 | 1 | |
| While driving with cruise control engaged and a situation occurs that requires braking; normal brake pedal pressure does nothing. i have to hit the brakes extra hard which significantly slows reaction time. this problem occurs randomly. when i took the car to the dealer i could not get the problem to repeat. *tr | |||
| 01/13/2010 | 1500 | 2 | |
| I have had numerous problems with the brakes on my new 2010 prius which i purchased a few days before xmas. i have reported two of the episodes with toyota - the first time the phone rep seemed to listen carefully to my account of what happened - the last time i called the phone rep seemed to blow me off and didn't' ask any follow up questions but said to take it to my local dealer for repairs. this was before the brake issue became known as a widespread problem - the local dealer where i purchased the car told me there were no problems - again this is before the announcement of the potential recall - both times - i was driving slowly and when i put my foot on the b rake it not only didn't stop but actually seemed to jump forward several feet. fortunately there were no cars in front of me so i did not hit anything. i have also had repeated braking problems when i am backing up- and when i first drive the car after not driving it for an hour or so - just a bare touch of the brake and it stops so hard - the first time i thought i had hit something - the brakes will continue to jerk and jolt me until i start to drive forward - then it seems to correct itself. i have had the car one month - i live in the los angeles area. *tr | |||
| 12/29/2009 | 3600 | 1 | |
| Several times i have applied the brakes on my 2010 prius only to feel the car continue to move forward without any feeling of brake engagement... this would last only a short time... perhaps a second... this occurred when trying to stop on bumpy roadway. *tr | |||
| 12/28/2009 | 3000 | 1 | |
| 2010 toyota prius (bought in 10/2009). when going over a recessed manhole cover or pothole while breaking, it feels as if the brake is slipping and the car jerks for a moment. continued pressure on the brake brings the car to a stop. it has never happened except when going over some obstruction and only when traveling over 20 mph. going over speedbumps in a parking lot is fine. *tr | |||
| 01/04/2010 | 4000 | 1 | |
| I want to complain about the braking problem with my toyota prius 2010 which i purchased in november of 2009. on several occasions, about 4 or 5, the brakes don't work when going over a bump hitting a pothole and the car slides forward. this has happened while slowing down at lights and intersections. *tr | |||
| 08/27/2009 | 5600 | 1 | |
| On 8-21-09, i took delivery on a 2010 toyota prius hybrid. since taking delivery, i have experienced intermittent ,momentary ,unintended acceleration and intermittent,momentary loss of braking. on 1-10-10, i took it in for the 5000 mile maintenance check, but did not tell the dealer my problems ,because i thought the car was still in a breaking in period and would resolve itself. but when i heard today 2-4-10, that the nhtsa was opening an investigation of the 2010 prius, i decided to add my complaint to the others. *tr updated 03/04/10 *bf | |||
| 01/05/2010 | 7000 | 1 | |
| In early january, when backing our 2010 toyota prius out of the garage, the brake pedal became overly-sensitive and began locking the brakes when any pressure at all was applied to the pedal. this went on for about a dozen iterations until the transmission was shifted to drive. at that point the brakes began behaving normally. this has only occurred a single time since purchasing the vehicle in july, 2009. *tr | |||
| 12/17/2009 | 1000 | 1 | |
| Making a left turn at slow rate of speed after encountering minor pothole. a feeling of loss of control of car or braking. braking did not allow proper trajectory of car in turn, causing car to hit and roll over curb and short shrubbery with right front tire. tire was flattened, and approximately $7000 damage was done to car frame. no other vehicles involved. legacy toyota in tallahassee, fl completed body repairs. *tr | |||
| 12/15/2009 | 5000 | 1 | |
| When i apply the brake in my 2010 prius if i hit a pothole or speedbump the brakes release and the car takes off. *tr | |||
| 09/01/2009 | 1000 | 1 | |
| With my 2010 prius (purchased late aug 2009), it has exactly the same problem others have described. while going downhill, with the brakes applied, hitting potholes or bumpy road surface causes the car to accelerate. it happens every so often. it's quite obvious when it happens and clearly a safety hazard. i have taken it into the dealer but the problem is not reproducible every time and they have no official word from toyota on it. *tr | |||
| 02/01/2010 | 223 | 1 | |
| Driving a brand new 2010 toyota prius iv approaching a set of rr tracks. while braking to make a left turn i crossed the tracks. the prius surged forward and i almost collided with the automobile in front of me. *tr | |||
| 08/25/2009 | 25 | 1 | |
| My 2010 toyota prius has a problem with braking specifically when the car moves on a bumpy or slippery surface, i can feel a pause in the braking and it feels as though i glide a few feet further than i should when i brake the pedal is fully pressed down. this has occurred since i bought the car in august 2009. *tr | |||
| 11/17/2009 | 1000 | 1 | |
| I purchased a 2010 prius in october, 2009. on several occasions i have been braking and hit a pothole or bump in the road and my vehicle has accelerated momentarily. the first couple of times this happened, it was rather concerning and dangerous, as i was concerned i'd hit the vehicle in front of me. since then, i attempt to not brake directly over a pothole. *tr | |||
| 09/15/2009 | 1000 | 1 | |
| Toyota prius 2010. while driving approx 20 mph over a pothole while applying the brakes, i felt what seemed like the brake slip and release temporarily. although it did not cause an accident, it could have had there been a car closer on the other side of the pothole. *tr | |||
| 02/01/2010 | 7000 | 1 | |
| I have a 2010 prius. when i am coming to a stop and there is a slope in the road or a pothole, the brakes will momentarily disengage and the car lunges forward. it has happened multiple times. i can predict when it is going to happen based on the bumpiness of the road. and the distance i am from coming to a complete stop. *tr | |||
| 11/05/2009 | 500 | 1 | |
| Since purchasing my 2010 prius in october 2009 i have noticed a brief pulsating sensation when applying the brakes over bumping surfaces. the brakes appear not to work for that brief moment when applying the brakes.*tr | |||
| 12/09/2009 | 3000 | 1 | |
| My 2010 prius brakes skip when going over large bumps or holes making the car surge forward rather than slow. i notice it at a higher rather than lower speeds. i thought it was just me until i heard others having the same problem. it was a daily problem as i go to work the same day and it happened in the same spot so the approx. incident date below is sorta invalid. in addition, i don't know i checked the correct brake section, i just know it's the brakes. *tr | |||
| 01/26/2009 | 5500 | 1 | |
| My 2010 prius seems to momentarily lurch forward when driving over bumps and braking at the same time. it seems that the brake disengages momentarily and then re-engages. i have not had any accident, and the time of disengagement is very short, but it does scare me a little. *tr | |||
| 11/15/2009 | 4500 | 1 | |
| I purchased a 2010 prius iv in june 2009. i live in the kansas city area. beginning in november when the weather turned cold, usually below freezing, i noticed that when i apply my brakes sometimes they will slip just for a fraction of a second. this usually occurs before the car has a chance to warm up but has occurred when the car is warmed up. the brakes will slip when i go over a portion of the road where the pavement is buckled, or there is a depression such as driving over a manhole cover, pothole or construction cut that was not properly filled. the experience is like braking over a small patch of ice. i notified the dealer of this problem in december but didn't make an appointment to have the car inspected. after reading an ap news release on this topic, which described the exact symptoms i am experiencing, i made an appointment for 12 feb to have the brakes inspected. i don't consider this to be a serious safety issue as i only experience this problem once every few weeks. *tr | |||
| 08/01/2009 | 1000 | 1 | |
| My 2010 toyota prius has issues with the braking system at different times, particularly when traveling over bumps, etc. there is a momentary loss of braking control. there have been no accidents but certainly scary to drive. nothing has been done about the failure. i contacted my dealership as the car is still under warranty and they said all they could do was take my name and number down. *tr | |||
| 09/02/2009 | 400 | 1 | |
| I stepped on my brake and my car kept accelerating. *tr | |||
| 11/22/2009 | 2000 | 1 | |
| I have a toyota prius 2010 and it accelerates while braking on several occasions especially while applying brake during cruise control and breaking on going through uneven surface. i called toyota and they directed me to toyota dealer where i purchased my prius. i contacted bennett toyota in allentown, pa (that is where i purchased my car) and the service manager drove the car on 12/28/2009 with me and he said he couldn't find any problem; he said, he also tested the car for the specifications and the technicians couldn't find any problem with either cruise control or brake. *tr | |||
| 01/06/2010 | 100 | 8 | |
| I bought at 2010 prius on new year's eve, and since then, on several occasions (probably about 7-8 times) when hitting a pothole, the car feels like it lunges forward, or almost accelerates. maybe it's just that the brake goes out completely, but it's always when braking for a pothole or dip that my car goes lunging forward. luckily no accidents or anything have resulted as of yet, but it concerns me. i've been too busy to mention it to the dealer yet, although i did mention it briefly to my salesperson when he did a follow-up call to see how i was doing with the new car. i've made an appt. at my local dealer for monday to have it looked at, but given the news this morning, i felt i should report it because i've definitely been experiencing what's being reported. *tr | |||
| 06/23/2009 | 0 | 1 | |
| Just adding fuel to the fire, but i have a 2010 toyota prius and there is definitely a braking issue. specifically, i notice it when i hit a pothole (and i live in los angeles, which is all the time). i frankly don't know whether there's actual acceleration or just total loss of braking (i basically notice it at slower city speeds--braking while turning a corner, for example), but there is definitely a momentary surge. it happens regularly (ignore the date i had to enter below)--so much so that at this point i anticipate it. *tr | |||
| 11/15/2009 | 3500 | 1 | |
| 2010 prius purchased july 2009. turning into my driveway while braking (which had a pothole in front of it) my car felt like it was lurching forward out of control after it hit the pothole. i would have thought that the pothole would impede my forward progress not increase it! i was going very slowly so the incident was momentary, but it did scare me. this happened several times before i learned how to avoid the pothole. i thought it was very strange but once i started to avoid the pothole i forgot about it. so i did not pursue it until i read the descriptions of the rough road complaints and realized that was exactly what had happened to me and that i should report it here. the dates, time and mileage are actually unknown because i did not make a note of it at the time. *tr | |||
| 12/11/2009 | 2000 | 2 | |
| When driving through an alley, at the end, before i stop for the street, there is a pothole. twice i hit it while braking for the stop sign at the street and something felt weird, like the brake didn't quite hold. honestly i thought i moved my foot from the brake or something. i think it may have happened one other time. i am conscious of if because i wanted to be aware if i was doing something wrong so i could correct it. *tr | |||
| 08/18/2009 | 1 | ||
| Every time we drive down a hill near our house and hit a pothole/crack in the road, the 2010 prius seems to accelerate through the pothole even though i am breaking down the hill. this has happened since the first day we drove the car (in august 2009). there have been no accidents or injuries since this road is not heavily traveled, but it makes me hesitant to drive my car if i have to go down that hill. *tr | |||
| 12/12/2009 | 5013 | 4 | |
| 1. we purchased a 2010 prius six months ago. we have had four incidents braking where we feel the abs over-compensates when the wheels are on different surfaces (e.g. gravel/pavement, puddle/pavement, etc.). two of the four incidents are notable because it felt as though i had lost control of braking and i was going to 1. rear-end another car and 2. go off an embankment. i am not an aggressive driver. today, i was alarmed to learn,--reported in the news--that other drivers are experiencing the same issue. toyota has checked out my car (at the 5,000 mile oil change), but reports nothing wrong. something is wrong! if feels as though the abs over-compensates on all four wheels when the surface under one wheel is irregular and causes the abs to react to slipping/sliding. i've owned six cars with abs, but none of them gave me the feeling that i'd lost control braking. there is something wrong with this car's abs and i am concerned that toyota will not address it in a prompt manner. your auto-fill form requires that i specify a date of incident. four times, between november 2009 and january 2010, we feel we've lost control of our ability to brake this car at very reasonable (braking) speeds and distances. it's not just one incident. *tr | |||
| 01/04/2010 | 2200 | 1 | |
| Approaching a four way stop sign in my 2010 prius, i applied the brakes but the car continued for approximately a second before the brakes took effect. there was patchy ice on the road before the stop sign. i went through the intersection, past the stop sign by about 20 feet. i originally thought it was just the abs braking characteristics however now i realize it was an actual delay in the breaking itself. i drove my previous 2004 prius for 108,000 miles without ever having this occur. *tr | |||
| 07/01/2009 | 100 | 1 | |
| Hitting a bump while braking causes the brakes to not work properly for a split second, giving the feeling that the car is lunging forward. *tr | |||
| 01/14/2009 | 5000 | 3 | |
| When applying brakes, to my prius 2010, on at least 3 occasion the brakes seem to fail. applying more pressure doesn't seem to work right away, then the brakes grab hard. only noticed at slower speeds, and rougher roads. *tr | |||
| 01/18/2010 | 2400 | 1 | |
| Brakes did not immediately catch when applied and caused slight skidding. *tr | |||
| 01/12/2010 | 3500 | 1 | |
| I want to register a complaint that i am experiencing loss of braking in my 2010 prius when the car hits a bump or pot hole in the road. have been in conversations with toyota personnel. no satisfaction to date with possible fix. no accidents have occurred thus far with my vehicle. it has occurred several times, most notably since the roads are getting rougher as a result of winter. *tr | |||
| 01/17/2010 | 8800 | 1 | |
| I have a 2010 prius iii with brake issues. sporadically, when driving backwards from a parked position the brakes become incredibly sensitive and i have to turn off the car and turn it back on again for them to function normally. on about 01/17/2010, after a heavy rain, when i was again pulling backwards out of my driveway my brakes made a grinding sound as if the pads were gone. mind you i have less than 9,000 miles on the car. again, turned off the car and back on to fix. has not happened again but it hasn't rained either. *tr | |||
| 01/11/2010 | 100 | 1 | |
| My 2010 toyota prius was a week old. i was exiting on a sloping downward ramp from lake shore drive in chicago and getting ready to stop and turn right. road conditions were wet and cold but not icy. i applied the brakes and the car failed to stop. i pumped the brakes several times before they grabbed. luckily there was no car in front of me or behind me. if there had been a car in front, i would surely have rear ended it. i thought being a new prius driver i had done something wrong but it definitely caused me some panic. i now have 456 miles on the odometer. the brakes have not slipped since the first incident but i have been very cautious in applying them in similar situations. *tr | |||
| 12/15/2009 | 3500 | 3 | |
| There have been 3 instances where the brakes of my vehicle briefly stopped working effectively. these instances always occurred when i was attempting to brake over rough pavement or potholes. it has not resulted in an accident for me yet, but having just read that this is an issue for the 2010 prius, i thought it important to report that i too have experienced this problem in my 2010 prius. *tr | |||
| 01/09/2010 | 1850 | 1 | |
| Car did not brake properly and slightly surged forward on many occasions when i drove over a manhole cover and speed bumps at lower speeds. in one occasion, i rear ended a car and cracked my license plate frame but since there was no further damage on any of the cars involved, we agreed to drive away. *tr | |||
| 02/03/2010 | 5000 | 1 | |
| Our 2010 toyota prius surges (accelerates) for a fraction of a second whenever the brakes are applied as it hits a small bump or slick spot in the road. this hasn't caused any accidents, but we drive the car primarily at low speeds (40 mph or less) and haven't been involved in any situations (yet) that required evasive action. we are concerned that, at higher speeds, or in a case where someone pulls out in front of us and we have to apply the brakes quickly, the vehicle will not respond appropriately. i have told my toyota dealer about this problem twice, and they have no response. about what to do about the problem. all they said was that the car has not been recalled, and that i should touch base with them periodically for updates. they took my name only when i pressed them to push the information back to toyota management. *tr | |||
| 11/24/2009 | 100 | 5 | |
| I have a 2010 prius bought in september. i have experienced the surge while braking about 4 or 5 times in 5,000 miles of driving. i didn't connect it with braking as it was a surge. i think that the roads were wet each time this happened. i stepped down hard each time and the surge disappeared after about a second or so. *tr | |||
| 02/01/2010 | 1 | ||
| When driving my 2010 prius over bumps with my brakes on, the car lunges forward as if the brakes are not working. this occurs each time i hit a bump when i have my foot on the brake pedal. *tr | |||
| 11/29/2009 | 3000 | 1 | |
| Pulling into a parking spot, hit a small bump, the car lurched forward while my foot was firmly on the brake. *tr | |||
| 02/02/2010 | 1300 | 1 | |
| 2010 prius brakes appear to become inoperable during transition from electromagnetic to hydraulic braking. i've had this occur an three occasions, twice during aggressive braking (near misses). once this occurred at low speed on a patch of so-so road during light rain. the other two times this happened at 40+mph on very good dry road. i took my car in to my local toyota dealership yesterday to evaluate this concern and was informed that my brakes are not malfunctioning. the dealer seemed unaware of the issue and the fact that toyota had corrected this issue in the cars currently coming off of the assembly line. the dealer position seems to be that the prius brake system is advanced and does not operate like other brake systems. my position is that brake system design should not contribute to driver panic during aggressive braking. *tr | |||
| 09/04/2009 | 5000 | 1 | |
| The issue with the brakes on the 2010 prius has occurred several times on our prius, which was purchased in august of 2009. coming downhill and going over a speed bump there is a sudden slight acceleration when we apply the brakes. fortunately, no accident has occurred. *tr | |||
| 12/01/2009 | 1000 | 1 | |
| 2010 toyota prius- if i drive over a pothole or a manhole cover while braking, the brakes feel like they release. *tr | |||
| 06/15/2009 | 100 | 1 | |
| 1. slowing down to make a right turn, traveling around 15 mph 2. while traveling over a pothole or uneven road surface, brakes suddenly disengaged and car continued forward 3. brakes reengaged after about a second later. *tr | |||
| 12/01/2009 | 80 | 1 | |
| 2010 prius iv problem with brakes when going over bumps or dips. brakes do not work while going over bump or dip. *tr | |||
| 12/08/2009 | 2 | ||
| I purchased a prius 2010 in november 2009 and have twice experienced a problem where the skid warning lights up on the dashboard even though the car is not skidding and at the same time i've felt the car accelerate even though my foot is on the brake. the first time i thought i would lose control of the car but kept my foot on the brake and the car eventually stopped. the second time it happened when i was doing a u-turn in an unleveled part of the road and since it had happened before i just applied the brake until the skid warning light turned off. i am now scared about the safety of the braking system in this car. *tr | |||
| 12/07/2009 | 4000 | 1 | |
| I understand toyota knew about the anti-lock brake issue on prius build before january 2010. i own a 2010 prius, purchased in october 2009. i have had one instance of momentary brake loss while driving over a bump. it was a bit frightening at the time, but the problem has not re-occurred. so i have not reported the incident until today. i assume many other prius owners may have experienced the same problem, but did not complain, since the occurrence is so infrequent. if toyota cares about safety, they will do the right thing and say safety is toyota's number one priority. our engineers are working on a fix for the prius's with the anti-lock brake issue and rest assured, toyota will fix those vehicles. i am very disappointed that toyota knew about this problem and has not taken care of it. hasn't toyota learned enough from the sticky gas pedal problem. toyota needs to be proactive in maintaining its image as a reliable car company that cares about safety. *tr | |||
| 12/08/2009 | 3000 | 1 | |
| When braking, if a pothole or bump in the road is hit, the car seemingly jerks forward/accelerates for a split second. *tr | |||
| 01/06/2010 | 2500 | 2 | |
| I have a 2010 prius i purchased in october of 2009. two different times i was driving on ice and was sliding while applying the brakes. while braking the brakes completely stopped working for a second or two, then began working again. the second time it happened i almost crashed into cars at an intersection because i could not stop at the intersection. both times this happened i was going at a very slow rate of speed because of the road conditions. my husband had thought i was just crazy or not understanding abs but this is not the feeling of abs. i could feel the abs brakes and then a moment of nothing, then brakes again. *tr | |||
| 01/30/2010 | 2000 | 1 | |
| I have a 2010 prius. if braking while going over a pothole or bump, the brakes seem to release, causing the vehicle to accelerate momentarily. consistently happens in these circumstances. *tr | |||
| 01/29/2010 | 1 | ||
| I have experienced the identical problem that is being described with the brakes on my 2010 prius. when braking, if a pothole or bump in the road is hit, the car seemingly jerks forward/accelerates for a split second. i thought this was a normal oddity that was occurring as a result of the abs, but now realize that this is a systemic problem. *tr | |||
| 01/01/2010 | 500 | 1 | |
| I own a 2010 prius. when i apply the brake to stop the car, sometimes the brake stops working. if i then quickly take my foot off the brake and reapply, it works again and the car stops. this has occurred on several occasions since december 2009. *tr | |||
| 01/05/2010 | 9000 | 3 | |
| Brake failure on my 2010 prius; three times on snowy/icy roads in jan. 2010. causing me to run two stop signs and narrowly avoiding a collision with a stopped vehicle. *tr | |||
| 08/15/2009 | 1500 | 1 | |
| 2010 prius brake problem--i too have had a few occurrences of the brakes on my 2010 prius briefly failing. it happens if i brake while going over a pothole while braking. most, but not all of the time this happens on a wet road. the brake pedal feels mushy and then in less than a second the regular brakes take over. i have never had the abs system kick in--at least i have never felt the characteristic shudder of the brake pedal. so far, not even a close call, but it is very disconcerting. date below is approximate first date. there have been 8-10 episodes. the car has about 9500 miles on it. *tr | |||
| 02/02/2010 | 10145 | 2 | |
| I have had two instances when i lost at least half of my braking power when going over a slight bump in the road. the first instance was about two months ago and the second was on feb. 2nd. in both cases i was coming up to a freeway on ramp stop light and went over a bump in the road. i went beyond the light both times and fortunately there were no other cars in my way. i also have a problem with the brakes grabbing so severely that my seat belt engages when i have just feather touched the brakes. this has occurred after starting the car and releasing the brake to move forward or backward, but not yet stepped on the gas. i have had the car into the dealership five times since purchasing it in september for these issues and have repeatedly been told this was normal. i even requested that a regional mechanic check it out and he did so. he told me he was able to have the car respond as i described and it was in normal range. i disagree. there has been three other people who have been with me when this has occurred and not one of them has considered this anywhere normal. i only yesterday learned of this avenue of complaint or i would have notified you of this problem earlier. thank you for your consideration and efforts to hold toyota accountable for this issue. so far i have had absolutely no success. *tr | |||
| 12/15/2009 | 4000 | 3 | |
| My 2010 prius is experiencing the brake problem as explained by others, i.e., hit a bump in the road while applying brakes and an unexpected but momentary increase in speed. this happened 3 times so far and i have owned the prius for 6 months. *tr | |||
| 09/02/2009 | 1500 | 1 | |
| 2010 toyota prius purchased july 2009 i've had the braking problem that's been described in the news recently on a number of occasions. when i first reported it to toyota during my first oil change at the dealership, they told me that it was normal. -- not! *tr | |||
| 12/15/2009 | 8000 | 1 | |
| In two separate incidents, i have experienced a situation similar to those problems reported with the 2010 prius brakes. when traveling over a bump in the road and on another occasion over train tracks, i felt the engine rev or accelerate. my brakes were already engaged, so i just pressed on them harder. *tr | |||
| 01/31/2010 | 5300 | 1 | |
| I was reading a story today about some reported brake problems with the 2010 prius. i bought mine back in september 2009. i have not noticed any brake problems during the winter on slippery surfaces, but just in the last week(january 30-february 2, 2010) i have had two instances on rough roads(from melting ice creating some small potholes) while braking where it feels like the car either accelerates for a brief moment or the wheels slip. the first time it happened i looked back to see if there had been any ice in that section of the road and there was none. the other time it happened as i was nearly stopped and the sensation was more like i had been bumped from behind by another car. i remember immediately looking up to see if a car had hit me and there was not a car close at all. *tr | |||
| 02/02/2010 | 4000 | 1 | |
| I own a 2010 prius since august 2009. in the past month or so, i noticed that when i made a slow right turn or stop on a drainage grill, i suddenly lost brake power. the car lunges forward for a foot or two before it stops upon hard stepping on the brake pedal. i had a near accident on feb 2, 2010 as i stopped at a red light under a bridge. this anomaly happens primarily around corners and bumpy roads. the problem did not happen at the beginning so i suspect that with time, the problem will get progressively worse. *tr | |||
| 10/30/2009 | 100 | 1 | |
| 2010 prius. i have the braking problem exactly as it's described in your report, momentary loss of braking capability while traveling over an uneven road surface, pothole or bump. this seems to occur about every 50 miles of city driving, but it's totally unpredictable. when it happens, i have to depress the brake pedal about two more inches to regain the lost braking. i indicated this on toyota's new owner survey but never heard from the company. please add this to the list of complaints. *tr | |||
| 02/03/2010 | 2400 | 1 | |
| Over the past 2-3 weeks we have had unpredictable occurrences of the brakes of our 2010 prius grabbing/locking when only gentle/gradual pressure has been applied to the brake pedal. the sudden full-braking of the vehicle causes it to lurch and, if drivers do not take off the brake completely, to stop short. *tr | |||
| 01/13/2010 | 16200 | 1 | |
| Brake problem with 2010 toyota prius. *tr | |||
| 02/03/2010 | 6000 | 1 | |
| Sudden increase in speed during braking over uneven surface, potholes, snow, rail road tracks. *tr | |||
| 01/15/2010 | 5000 | 3 | |
| I have had 3 incidents in the last 8 months with my 2010 prius where when braking there is a slight acceleration before the brakes get in. in all cases i was driving at slow speeds (30mph) on a flat surface. it eventually brakes ok, but it is very nerve wracking. *tr | |||
| 02/02/2010 | 3500 | 1 | |
| We purchased a 2010 toyota prius in july 2009 and have been having problems with the brakes that correspond precisely to what is now being widely reported in the news. specifically, when going over bumps in the road while braking, several times i have experienced the car suddenly and momentarily speeding up and lurching forward rather than slowing down. my wife has also report braking problems. indeed, just last week i queried her to make sure it was the brakes rather than the accelerator, and she confirmed the problem occurred while braking. so far these incidents have not resulted in damage or crash, but we are obviously now very concerned about use of the car, especially during slippery winter conditions here in washington, dc. the date below only represents the most recent of multiple times we experienced this problem. *tr | |||
| 01/11/2010 | 3200 | 4 | |
| At least 4 times while braking as i turn onto another road in my 2010 prius, the car seemingly jerks forward/accelerates for a split second. it is very jarring and frightening and there is clearly something wrong. *tr | |||
| 12/10/2009 | 500 | 1 | |
| When driving my prius, i have noticed the feeling of being thrown forward for a split second after i have applied the brakes when on an uneven surface, ie a grate in the road. this occurs nearly everytime i round a corner by my apartment in which i am forced to brake as i go across a metal plate in the road. *tr | |||
| 02/04/2010 | 1 | ||
| I have a 2010 prius and would like to log a complaint that i too am experiencing the lag effect on the braking system. i read today that it could be a computer software problem. please log this complaint so the real magnitude of this problem is tallied. *tr | |||
| 01/01/2010 | 3000 | 1 | |
| When i go over a bump or hit a significant pothole, the anti-lock braking system on my 2010 toyota prius seems to freeze up. i am unable to use the brakes properly and it feels like i do not have control of my car for a couple of seconds. fortunately, i have not had an accident as a result but i am very concerned about this. *tr | |||
| 01/23/2010 | 1235 | 1 | |
| When my 2010 prius goes over a pothole it surges and brakes aren't responsive enough to prevent hitting the car in front of me. so far i haven't hit any body or another vehicle.*tr | |||
| 08/28/2009 | 1 | ||
| This complaint is regarding my 2010 toyota prius which i purchased in august of 2009. before my first oil change was due i had noticed the vehicle's tendency to not respond instantly to my stepping on the brake, and then lurch forward when the brakes did engage. my brakes also squeal even when the weather is dry. i reported this to the dealer when i took it in for tire rotation and oil change. of course they told me the momentary pause of the brakes was normal and they did not hear the brakes squeal. well my vehicle is still doing both of these things and it seems i am not the only one with a concern regarding the brakes. please add my vehicle to the list of owners who are worried about these brakes. i have been driving for 40 years, every make and model, including tractors on the farm and i know there is a problem no matter what that dealership or toyota says. *tr | |||
| 08/28/2009 | 1 | ||
| 2010 toyota prius while braking, if the car drive over a bump, the car accelerates. to stop the car, the brakes must be pressed to the floor board to stop and avoid an accident. the car has had this problem since purchased 8/2009. *tr | |||
| 10/02/2009 | 500 | 1 | |
| I purchased a 2010 prius in august 2009. it shows no evidence of an anti-lock braking system. i reported this to the taylor toyota of alexandria in october who told me that they had not heard of the problem and they did nothing. additionally, the avid factory tires on the car are not effective on wet pavement; they skid. again, i reported this to the dealer and again they told me they had not heard of a problem but referred me to their parts department to buy new tires. finally, when i engage cruise control, the car surges forward in speed until i depress the brake. i stopped using the cruise control. *tr | |||
| 09/01/2009 | 1 | 1 | |
| When carefully braking my 2010 toyota prius at low speeds (40 mph and lower), a small dip or bump in the road will cause the car to release the brakes and the effect is a sudden acceleration or release of the braking system which lasts approximately 1 second. this failure in the vehicle is seemingly unrelated to a mechanical issue and feels more like an electrical issue, since there is no stiff pedal or obstruction near the pedal. the failure occurs on a semi-regular basis. i took the car into the toyota dealership where i bought my vehicle, suburban toyota located in troy, michigan, and reported the problem, approximately 4 months from the time i bought the car (june 2009). the mechanics kept the vehicle over night. the dealer then reported that they did experience the problem when testing the vehicle and said it was related to the anti-lock braking system and that the car was designed to move around an object rather than heavy braking. they did nothing to fix the car. the problem persists and i have heard similar complaints of unintended acceleration, both when braking and coasting. i am concerned i will at some point hit a car that is too close in front of me. *tr | |||
| 09/15/2009 | 50 | 10 | |
| 2010 toyota prius accelerates for a second when i hit the brakes when i am passing over potholes or ice. it has happened wellover 10 times. *tr | |||
| 01/15/2010 | 1000 | 1 | |
| Brake problem with my 2010 toyota prius. has been happening since i purchased the car but didn't realize it was such a wide-spread problem. one out of every 500 times i push on the brake pedal, the car will first lunge forward for a split second and then begin to decelerate. it is a very clear jolt when the brake pedal is first depressed. *tr | |||
| 02/04/2010 | 8000 | 1 | |
| 2010 toyota prius model iii. during light braking, when the vehicle is using the regenerative brakes, rather than the mechanical friction brakes, if a pothole or railroad track is crossed, the brakes feel like they slip a bit before they catch again. the car does not accelerate, but the deceleration from braking does decrease for part of a second. this has happened to me several times in the past 6 months and is repeatable. *tr | |||
| 12/12/2009 | 1500 | 1 | |
| 2010 prius brake failures at least 4 times in past 6 months after hitting pothole or ice on road at about 30mph or less; brake pedal goes to floor and car sort of shimmies. *tr | |||
| 02/02/2010 | 7500 | 2 | |
| I purchased a new 3rd generation toyota prius in august of 2009. i have noticed two incidents where my brakes did not respond properly immediately after passing over distinct potholes. they had way too much give. on the second pump of the brakes, the full braking power appeared to be restored. *tr | |||
| 02/01/2010 | 5475 | 1 | |
| 2010 prius surges when a bump is hit while braking. this is fairly repeatable and can occur as much as once a day. we have not taken back to the dealer, because being in the automotive electronics industry, i am certain it is a software bug and that the dealer will not find anything wrong or know how to fix it. *tr | |||
| 12/05/2009 | 4800 | 2 | |
| Early dec. 2009 i hit a pothole and felt my brakes fail for a second then grab again. at first i thought this was black ice but it happened again a week or so later and then again toward the end of dec. 2009. *tr | |||
| 01/10/2010 | 1200 | 1 | |
| I have been experiencing a failure of the brakes on uneven pavement or when going over man hole covers. this has happened to me three times in the first month of ownership of my 2010 toyota prius. *tr | |||
| 02/03/2010 | 8754 | 1 | |
| In city driving conditions, the brake pedal of my 2010 toyota prius fails to respond when it is depressed and the car hits a bump. the vehicle feels as if it momentarily lurches forward before it begins to slow. this is an intermittent problem that occurs when the vehicle hits an obstruction, such as a pot hole, while the brake pedal is being pressed. the most recent occurrence is detailed below. *tr | |||
| 07/31/2009 | 1 | ||
| I have had repeated occurrences of the 2010 toyota prius braking system abnormality recently reported in the news, since purchasing the vehicle in july 2009. i reported this at my first oil change to the dealers service center, but they did not investigate the matter. *tr | |||
| 10/15/2009 | 1 | ||
| I purchased 2010 prius 3rd generation last august and my wife and me experienced brake problem several times. when i passed bumpy road at low speed i felt lost braking (surged forward) for a second. my wife also experienced the same problem two weeks ago when it rained in los angeles. i reported it to the dealer last october but they said there is no problem in my car. so i insisted the inspection so the dealer arranged to show my prius to the expert from toyota center and i had to wait it 2 months. last month (early january) it was inspected by the expert from toyota center at the dealership but i heard the simple answer from the dealer that the technician found no problem. since the inspection my wife experienced the same problem again. when she was driving with our 1 year old baby passing on the pothole in the neighborhood. *tr | |||
| 01/09/2010 | 11000 | 2 | |
| Brakes momentarily disengaged on 2 occasions while i was traveling at a low speed on a slippery surface. *tr | |||
| 02/03/2010 | 3100 | 1 | |
| I have a 2010 toyota prius, and i am shocked that this car was not included in the gigantic toyota recall. why? because the 2010 toyota prius exhibits brake failure and sudden acceleration while slowing down on bumpy roads. for example, if you're slowing down towards a red light, and then all of a sudden you hit a pothole, the car will suddenly accelerate and may cause a crash with the person ahead of you! this happens all the time and is extremely dangerous. thousands of 2010 prius drivers worldwide are also having this brake failure/sudden acceleration issue with their 2010 prius as well! take a look at just a few of these discussions which are taking place, where people are having uncontrollable sudden acceleration with their 2010 prius: http://tinyurl.com/yj359rh will nhtsa please do something about this? *tr | |||
| 01/23/2010 | 3500 | 1 | |
| I have a 2010 prius. when i hit a pothole while stepping on the brake, the brakes let go. i have to rebrake. the car actually seems to speed up. it is very frightening. i have taken it into the dealer. they say it is the anti-lock brakes. i have had anti-lock brakes before and never have had that kind of problem. *tr | |||
| 01/30/2010 | 130 | 4 | |
| I would like to add my report to your other complaints about 2010 toyota prius brakes. i purchased mine in july and since then have experienced 4 (four) instances of this problem. in each case, i was decelerating with the brakes steadily applied, and rolled over a bump or pothole in the road. at that moment, the brakes stopped working, or the braking power was severely reduced, and the car felt as if it lurched forward. applying more pressure on the brakes when this occurs does cause the braking to resume, but there is a delay of perhaps 1/2 second. i have not had an accident so far, but if i were behind another car which was also braking when this happened, there is a high likelihood that my car would smash into the other car's rear. *tr | |||
| 08/24/2009 | 210 | 1 | |
| Car loses braking during tight cornering or when driving over minor imperfections in road surface. *tr | |||
| 02/02/2010 | 3000 | 1 | |
| When braking at low speeds, vehicle accelerates for a second before braking. this occurs when hitting a bump. i experience this almost every day on my way to work at the same location. the road is sloped slightly downhill in a residential street. i have not contacted toyota yet. *tr | |||
| 02/01/2010 | 5000 | 1 | |
| Brake failure. *tr | |||
| 08/26/2009 | 100 | 1 | |
| While driving our 2010 toyota prius, we have noticed frequent occurrences of the car lurching while braking. this typically happens as the car hits a pothole or bump in the road while depressing the brake; the car lurches with enough force to sometimes push our bodies forward, against the safety restraints. nothing has been done to correct the failure, but we will be calling our dealership to discuss solutions. *tr | |||
| 12/10/2009 | 1000 | 1 | |
| 2010 toyota prius brakes briefly fail during low speed breaking. car feels like it surged forward even when foot was on the brake pedal. *tr | |||
| 01/20/2010 | 3700 | 1 | |
| There have been several instances since i purchased my 2010 prius in october 2009 that i have gone over a bump in the road and my 2010 prius has felt like it's speeding up and i had to push hard on the brakes to feel like i had control of my car. *tr | |||
| 07/10/2009 | 3000 | 6 | |
| I own a 2010 toyota prius, 3rd generation. when i am braking and hit a pothole or a manhole cover, the car surges forward. i took it to the dealership today and they checked the car and said they couldn't find anything wrong with it. they also said they had no knowledge of any kind of braking or surging problems with this vehicle. our dealer was eastern shore toyota in daphne, al. this has happened approximately 6 different times since we bought the car in 2009. it started to occur approximately in july 2009, with the most recent episode in january 2010. *tr | |||
| 09/02/2009 | 150 | 1 | |
| Vehicle occasionally jumps ahead during braking. most likely to happen when stopping on a downhill grade at moderate speed (under 35 mph). brakes engage again after brief acceleration and car so far has come safely to a stop. date below is approximate date of first occurrence. *tr | |||
| 12/23/2009 | 4500 | 1 | |
| Brakes do not work correctly after hitting bumps in certain conditions. *tr | |||
| 01/28/2010 | 2500 | 4 | |
| The brake of my car was malfunction. while breaking, the car slowed down initially. however, before the car totally stopped, it accelerated suddenly and spontaneously for several seconds. this condition happened for 4 times within 2 months. there was no ice on the road and the road was not bumping either. *tr | |||
| 01/01/2010 | 400 | 1 | |
| My 2010 toyota prius accelerates over potholes and bumps in the road when i'm pressing on the brake. even if i am braking for a few seconds, as soon as i get to the pothole, it pushes forward. this happens to me at least once a day and sometimes multiple times a day. i have only been driving the car for 5 weeks and have noticed this issue since day one. *tr | |||
| 09/09/2009 | 250 | 1 | |
| Sporadic problems with the brakes on our 2010 toyota prius. we have discussed this several times on chat boards over the past five months. it happens perhaps once a month. the brakes lock when the car is in reverse. backing out of the garage, you can just barely touch the brakes and it's as though you had slammed the full force of your foot on the brakes. literally can cause whiplash even at the slow speed of backing out. when this problem occurs it will occur over and over as long as you are in reverse. each time when you slightly depress the brakes, the car slams to a complete stop. what we have found is that the only way to correct it, has been to turn off the car completely and re-start the car. it may just be coincidence, but typically the brakes return to completely normal operations in reverse after the ignition has been shut off and the vehicle engine restarted. the greatest oddity is that it appears that the brakes do not respond in the same degree as the brakes are depressed. it's as though the brakes when depressed even slightly message the car to exert full braking action. it's the only car we've ever owned where the braking power seems not to be dependent on the degree with which we press the brakes. again, this doesn't happen every time we have the car in reverse, but typically between once a month and every six weeks. *tr | |||
| 01/01/2010 | 2000 | 1 | |
| When i drive on slippery or bumpy roads in my 2010 prius, i experience brake failures at low speeds. it feels as if there is a temporary surge of power and the brake system disengages -- almost as if the anti-lock brake system is improperly engaging. i have experienced this about four times, both in slippery weather and in dry weather (for instance, driving over a manhole cover). so far there have been no accidents, but this seems fortuitous. i am bringing the car into the dealer. *tr | |||
| 01/10/2010 | 3500 | 1 | |
| 2010 toyota prius anti-lock brakes fail to stop skidding on minor ice. *tr | |||
| 12/19/2009 | 7000 | 1 | |
| My 2010 toyota prius has a recurring problem with its brakes. on multiple occasions, when i am braking and hit a pothole or other uneven surface the car lurches or slips forward and the braking action stops. this has happened to both me and my wife while driving the car. the feeling while driving the car is that the car is momentarily out-of-control and that the car will not stop in time. *tr | |||
| 01/27/2010 | 6000 | 1 | |
| Almost 100% of the time when approaching the intersection of 20th & broadway (santa monica, ca) from the east so i can turn right to head north on 20th, my 2010 toyota prius surges forward when i hit a bump/pothole in the road while braking to a stop. the surge is enough to launch the car forward into the crosswalk, so if someone were crossing the street it is possible the car may hit them. i haven't done anything to correct the failure, but i need to see the dealership about the problem. *tr | |||
| 02/03/2010 | 0 | 1 | |
| I have a 2010 toyota prius iv and i have experienced the reported problem with the braking; namely with the brake applied and i running over a rough spot or bump in the road ( a good example is braking when going over rough railroad tracks) you feel a momentary surge or acceleration. i have noted this problem quit a few times since the car was new (car has been driven approx. 5000 miles). *tr | |||
| 01/01/2010 | 5000 | 2 | |
| 1. small patch of snow or bump 2. loss of brakes, 2 times due to snow and 1 time due to a bump, loss of braking for about 5 feet about 20 feet before a stop sign. there is no pulsing (abs) just a loss of braking. when it happens, i push the brakes harder and after about 5 feet at 5 mph, i get sudden strong braking. the snow has only been on the right front tire. this is not just loss of traction because i don't hear the noise associated with that. 3. none, read other similar accounts that the deal is calling normal. *tr | |||
| 02/02/2010 | 3500 | 1 | |
| We live in chicago and own a 2010 prius. we also have experienced the acceleration (forward surge) upon braking on uneven terrain reported by other owners. no accident, but it happens often on our city streets and it is a little unnerving. the last time it happened was yesterday. *tr | |||
| 01/01/2010 | 3200 | 1 | |
| Driving over a bump or pothole and my brakes temporarily quit working. 2010 prius. *tr | |||
| 11/17/2009 | 5000 | 1 | |
| We have had several instances of brake malfunction in our 2010 prius. when backing out of our garage, on 3 occasions, when my foot was just resting gently over the brake, it felt as though i was stomping on the brake. it did this 4-5 times where it lurched to a stop when i wasn't applying it but just resting my foot on it as i backed up. i had an incident where i was entering a car wash and when i went over a bump into the car wash stall, the car lurched uncontrollably forward. i tried to put the car into neutral and it wouldn't stay in neutral but kept popping back into drive an lurching forward.. also, we have 3 incidents in inclement weather where the anti-lock brakes did not work at all or did not work correctly. on a snowy day, i slid right through an intersection and the anti lock brakes did not kick in nor did the anti-lock brake indicator light come on. my husband had an incident where if felt as though the anti-lock brakes functioned only on one side of the car, propelling him straight sideways upon braking. we feel very strongly that there is a problem with this model of prius that poses a significant risk to our safety. *tr | |||
| 06/30/2009 | 350 | 1 | |
| I purchased a 2010 prius in june, 2009. i have noticed a surge forward if i apply the brakes while going over bumps like railroad tracks or potholes. this has happened repeatedly. i just saw a report in the media that others have had the same problem. i will report it to my dealer in madison, wisconsin. *tr | |||
| 01/20/2010 | 900 | 2 | |
| I purchased a 2010 toyota prius on dec. 23 2009 in columbus oh, and experienced brake problem twice. when i was coming out of my street to merge to a bigger street, i used the brake trying to stop the car. instead of coming to a stop, the car jumped forward. i had to brake it again and hard to stop it. i felt as if there was an internal energy pushing the car forward. this happened to me twice. the first time was 3 weeks ago, the second 2 weeks ago. *tr | |||
| 01/29/2010 | 11000 | 1 | |
| Dear, nhtsa i was driving my prius in november of 2010 and noticed that the braking system was not braking well. i recently was involved on jan 29, 2010 in an incident driving out of the parking lot from work were the brakes failed on the vehicle when i went to stop the vehicle and the car skidded and struck some ice/snow (one the edge of the parking lot) causing damage to my front passenger side bumper. i am not as concerned about the damage as i am about my overall safety in the vehicle. i have reported the problem to toyota and they have responded and i have told them that there is an issue with the braking. i want to take this time to formalize my complaint. i am not checking crash and property damage due to the fact that it is not well defined on this page although i had property damage to the car itself and i crashed into snow/ice on the side of the road. *tr | |||
| 12/01/2009 | 7500 | 1 | |
| Occasionally when braking at a relatively slow speed on a bumpy or slippery surface the brakes feel like they stop working. my immediate response is to press the brakes harder and that seems to resolve the issue. i don | |||
| 02/03/2010 | 1000 | 1 | |
| When braking, my toyota prius unexpectedly jolts forward if i hit a bump in the road. this happens consistently nearly every day i drive it. *tr | |||
| 02/03/2010 | 1 | ||
| When i drive over a bumpy road and apply the brakes, my car does not stop. *tr | |||
| 01/11/2010 | 550 | 1 | |
| Driving a 2010 prius with a half inch of fresh snow on a residential street at 20 degrees. driving at 12 mph, slowing to a stop at a stop sign. twice the brakes stopped working, causing me to come to a stop beyond the pedestrian crosswalk. fortunately, no pedestrians were there. it felt as if abs had engaged, causing me to lose control of braking. even if this is a design element, it caused me to not be able to stop in time. i was going 7 mph when this happened and would have easily stopped the car in time if this had not happened. after this incident i had to approach intersections at 3-5 mph, afraid that my slow speed would cause somebody behind me to rear end me. *tr | |||
| 12/01/2009 | 3000 | 1 | |
| I have had my 2010 toyota prius iv since august 2009. over the past two to three months, i notice that sometimes when i brake, my car jumps forward a little bit before braking. it feels like skidding on ice but there is no ice around. it happens at least a few times every week. i have been lucky so far that this issue hasn't caused an accident. i now make sure i have extra space when braking because i can't seem to find a reason for this happening. there is no way to predict when the brakes will react that way. i am planning on contacting my dealership today. *tr | |||
| 10/01/2009 | 2000 | 1 | |
| I bought my new 2010 prius june 6th 2009. since about oct 2009, i have noticed when i am braking and go over a pothole in the road, the car seems to speed up. there is a pothole by my house so i can test this frequently. it happens when i go about 30 mps (as i'm slowing down due to the stop light on the corner). i took my 2010 prius into the dealership on dec 28th and they were very unhelpful and rude. they told me to remove my floor mats even though what my issue was had nothing to do with floor mats or the gas pedal. what can i do to help encourage them to fix this issue as i find it unsafe to drive my car?? i have almost rear ended the car in front of me twice. it's very concerning. *tr | |||
| 09/10/2009 | 1500 | 1 | |
| Regenerative braking disengages for a second or two before mechanical braking takes over causing car to lurch forward/accelerate when braking on uneven road surfaces. this effect was noticed twice at speeds less than 15 mph when front tires hit ruts in road attempting to brake at stop lights or when going around a corner. i try to drive close to the right curb on the even road surface to avoid breaking when pot holes/ruts are present in my lane where other cars typically drive. *tr | |||
| 01/14/2010 | 3000 | 1 | |
| When attempting to brake while coming to a traffic light on a slightly icy road, the car accelerated. it was not the function of antilock brakes, but rather a surge that was totally unexpected and somewhat frightening. luckily there was no car immediately in front of me, or i would have surely rear ended it. i reported this to toyota and there is a case number - 1001142944. given toyota's slowness to react to the gas pedal issue, i want to notify nhtsa. *tr | |||
| 02/02/2010 | 1 | ||
| I have a 2010 prius. i have noticed a problem with the braking in certain conditions as described: when the prius hits a patch of uneven pavement or is taking a sharp turn while lightly braking, the prius' brake ecu interprets that as a situation where the computer needs to step in and keep the wheels from locking up. the brakes do end up working but it is an unsettling and definitely a potential dangerous situation as there is a surge prior to the breaks actually working. the surge only lasts a second or so but it does feel like the car is actually accelerating and not braking for that brief moment. *tr | |||
| 01/20/2010 | 1800 | 1 | |
| My 2010 prius has brakes releasing while my foot is on the brake pedal. in reverse the brakes frequently stick on. in this most recent incident i was changing lanes looking to make a future left turn and i was in the right lane of a 4 lane road, i was slowing down to change lanes and did not see a car in my blind spot where my mirrors did not show the car. once i side swiped the acura mdx, i made emergency maneuvers to get back to the right lane, which included swerving right and hitting the brakes after the car started moving right. at that point my vehicle seemed to move on it's own irregardless of my pedal and steering actions (i was in panic mode since i haven't had an accident in decades - except a parking lot bump). i wrote off the fact that i was unable to defensively drive as i have relied on for all these years since i couldn't pull out of the accident. now however, after hearing of the similar issues on 2010 prius i am wondering whether the vehicle played a part in the accident that i could not compensate for? *tr | |||
| 01/11/2010 | 200 | 1 | |
| When braking, the brakes seem to loose partial grip on and off. also when braking over a pothole or uneven road the car seems to accelerate suddenly and there is a feel of loss of control. these are both very scary. *tr | |||
| 01/31/2010 | 1 | ||
| I am driving a 2010 toyota prius since august 2009. under certain conditions the brakes seem to malfunction. i can replicate this issue on a certain road when i am coming down a slope approaching a traffic light and the vehicle (driver side front tire) hits a pothole as i am braking. the vehicle continues to go forward momentarily instead of the brakes working as they should. the date mentioned below is the most recent time i have experienced this issue. all together this has occurred approx. 10 times sinf august. *tr | |||
| 02/02/2010 | 5000 | 1 | |
| 2010 prius i have definitely been getting the lurching over bumps that i've heard other 2010 prius owners complain about. happens a lot when i drive over a manhole cover, the car seems to speed up for a brief moment. i haven't had an accident from this yet, but wanted to register my complaint with whomever else is having the same problem. *tr | |||
| 08/24/2009 | 100 | 1 | |
| My 2010 toyota prius experiences acceleration whenever i go over a pothole and attempt to brake the car. this has happened since i purchased the vehicle in august 2009. i am reporting it now because i now know that other owners have reported the same problem and it is not a result of my inability to get used to driving a hybrid. this is a serious safety issue as i'm alarmed that i may be unable to brake suddenly if this happens in a situation that warrants me to quickly brake. *tr | |||
| 02/03/2010 | 10000 | 1 | |
| While depressing the brake pedal in the 2010 prius, the vehicle will lose all braking power if you hit a bump or pot hole in the road. i have experienced this several times while depressing the brake, approaching an intersection. when i drive over the bump in the road (and continue pressing the brake) the vehicle surges forward as if my foot had released the brake. the only way to stop the vehicle is to immediately re-engage the brake fully. i have came very close to rear ending the vehicle in front of me due to this design / mechanical flaw. i can recreate this scenario each time i cross a certain portion of the road i commute on. *tr | |||
| 10/01/2009 | 50 | 1 | |
| We had picked up our brand new toyota prius 2010 on sep 24th 2009. a week later, on oct 1, i was driving in to my brother in law's driveway (maybe at 5mph) when i felt that the brake pedal did not engage. i crashed into their garage door. since, this was a metal door, we thought we could dent it back in and repaint it. therefore, it was not reported to insurance. since then, i have felt a couple more times that the brake did not engage either quickly enough or hard enough. i am not a rash driver. i have not had a traffic violation in about 8 years or so. i am very worried out this. we have 2 children that are in the car a lot with me. please advise. *tr | |||
| 11/14/2009 | 2000 | 1 | |
| Care speeds up with breaks applied when the car hits a bump. the brakes also grab when backing up. frequency: not often but it need to be corrected before someone gets hurt. reported to toyota. they have checked and found nothing wrong. there is not one date as it has happen several times over the last 7 months. *tr | |||
| 01/01/2010 | 1 | ||
| Toyota-prius hybrid-2010 braking problem. i have experience a braking problem that has not resulted in an accident. the braking problem results only when in a panic stop (when abs is active). i think what is happening is that the brake is releasing for a second while the abs computer is taking over control of the braking. this cause what seems to the drive as a slip. where the drive feels the brake release and a second later the abs kicks in and stops the car. i have felt this brake release three times in the few months i have owned the car and most times when turning right into a driveway. *tr | |||
| 10/01/2009 | 1 | ||
| 2010 toyota prius. i purchased a 2010 toyota prius series v in july 2010 ... i have notice that when going over a pothole or very rough pavement that the vehicle does somewhat speed up and have a momentary loss of braking capability. stepping on the brake seems to alleviate the situation. seems to intermittent and did not happen on any specific date or cause an accident . *tr | |||
| 01/20/2010 | 1 | ||
| 2010 prius we have had a problem with the brakes releasing when we drive over pot holes or a slick surface. this has been a reoccuring thing. it prevents us from stopping quickly or reacting to a situation. it has not resulted in an accident, but it seems like it has a strong possibility to in the near future. *tr | |||
| 02/03/2010 | 4000 | 1 | |
| I have experienced problems while braking in my 2010 toyota prius. the problem occurs when i am braking and the car hits a bump/pot hole. when i hit a bump the brakes seem to stop working for a second or two and the car lurches forward. for a moment or two you feel like you are losing control of the car. luckily this has not resulted in an accident yet. *tr | |||
| 02/03/2010 | 0 | 1 | |
| The regenerative braking on the 2010 prius lose gripping when going over bumps on the road. what happens is when the car goes over bumpy ground and i am using the brakes, the brakes seem to lose grip and the deceleration is reduced. i have noticed this happening about 10 times in the 6 months that i've owned the vehicle. *tr | |||
| 01/27/2010 | 2400 | 1 | |
| I experience difficulty with the brakes of my 2010 prius. sometimes the breaks do not take hold when i press the brake pedal and the car seems to skip forward for a second or two before it begins to slow down and the brakes take hold. it is very unsettling but i have not had an accident. my wife will not drive the car. i reported it to the service manager at my dealer, seeger toyota in st. louis county, missouri. he said he knew of no complaints like this whatsoever. then he called me back and said toyota was investigating a brake issue with the 2010 prius that only occurred on rough surfaces and was not applicable to the problem i described that happens on smooth surfaces. *tr | |||
| 01/15/2010 | 7700 | 1 | |
| We purchased our 2010 prius in august 2009. since then, my wife has complained several times about how the brakes seem to stop working whenever she is braking and encounters a bump (like a pothole or speed bump). i've noticed it a couple of times myself .. it feels like the brakes are no longer functioning and you have to release the pedal and push it down again to re-engage the brakes. fortunately, we haven't hit anything, yet -- but it is a recurring issue. *tr | |||
| 10/01/2009 | 3000 | 1 | |
| Experience sudden loss braking power when my prius hit a pothole while applying the brake pedal. the car regain braking power after short period of time. this issue happened multiple times. i'm concern my car may hit other vehicle or pedestrian in the future if i would not stop the car properly. *tr | |||
| 10/20/2009 | 1000 | 1 | |
| On my way to work there is a rough patch of pavement where i have to slow down before a turn and a stop. if i am applying the brakes when i hit it, the car will surge forward, feeling out of control like on ice, until the car is on smooth pavement again. fortunately there wasn't a vehicle in front of me the first time it happened, and from then on, i slow down well before the rough patch, and don't apply my brakes on the patch, or similar patches. *tr | |||
| 02/02/2009 | 5 | ||
| 2010 prius, with no modification made since purchase. when driving and coming to a stop, the brake pedal was applied to stop the car. the car hit a pothole/sharp bump 5 feet before the stop sign and the car jerked forward frighteningly while the brake was depressed. the brake pedal lost its breaking ability for 1 or 2 seconds, but became operational again after that. during the 1 or 2 seconds, i felt i lost control of the car. this defect is reproducible and has occurred 5 times since i bought the car 6 months ago. this is very scary and i think will cause an accident if not fixed. *tr | |||
| 02/02/2010 | 3000 | 1 | |
| 1. i am driving on a regular road. 2. when i am braking and my car hits a bump it seems to jolt forward briefly and i need to hit the brakes harder to stop. *tr | |||
| 01/15/2010 | 7000 | 1 | |
| I have driven my 2010 prius for about 8 months. with the brake applied and slowing the car, the brake releases and the car lurches forward when i hit a bump in the road. fortunately, i was always able to regain control of the vehicle prior to an accident. this event has happened about 5 to 10 times in the 8 months and seems to occur at slower speeds like approaching a stop sign or stop light. *tr | |||
| 01/08/2010 | 2000 | 6 | |
| 2010 toyota prius - while braking car has occasionally lunged forward - seemingly when hitting an uneven section of road. feels as if car suddenly hit a patch of ice -none present of course. more noticeable when turning. this has happened approximately 6 different times. *tr | |||
| 01/01/2010 | 1000 | 1 | |
| I have been driving my 2010 prius for 3 months and have experienced the following issues, when braking, if a pothole or bump in the road is hit, the car seemingly jerks forward/accelerates for a split second and the traction light blinks. even when there are no bumps, there is a lag in the time i depress the brake pedal, and when the brakes activate. the car almost coasts for about 1-2 seconds, which can make the difference in an accident or not. *tr | |||
| 07/01/2009 | 500 | 1 | |
| Bought 2010 prius in june. have continuing brake issue when go over bump, car lurches forward. continuing problem. below where says incident date put in about when first noticed it. *tr | |||
| 02/02/2010 | 3000 | 1 | |
| While driving at a normal speed (20 - 60mph), i start slowly pushing on the brake pedal each time i run over a pothole or a bump in the road, and for a split second i feel the car accelerate slightly even though i am braking. i have noticed this 95% of times i go over a pothole and probably in a few other situations as well (possibly when driving on slick or icy roads). i have not complained about this before, so nothing has been done about the failure. *tr | |||
| 02/01/2010 | 6000 | 1 | |
| This is a recurring problem with my 2010 prius. when i go over a small bump, such as a metal plate on the street, so far always at low speed it feels as though the car accelerates. i think it's probably just not braking the way i expect it to, or perhaps the brakes momentarily fail. it lasts less than a second, and of course i was worried that it represents the same problem that has caused the big toyota recall. but i think it's different. there's an article in today's new york times about this. *tr | |||
| 11/26/2009 | 250 | 1 | |
| While attempting to brake at a stop sign as i was moving slowly up an incline in a residential neighborhood, my 2010 prius hybrid seemed to lurch forward. this has only happened once in the three months since i purchased the vehicle, but it startled me. thank goodness there was extra distance between my car and the vehicle in front of me, or there could have been a fender bender. *tr | |||
| 01/15/2010 | 3000 | 3 | |
| Three times when braking with my 2010 prius i have momentarily lost braking power after hitting a pot hole or a bump. the car ended up stopping slightly past where i had intended to brake. *tr | |||
| 12/15/2009 | 5000 | 1 | |
| Often when i drive my 2010 toyota prius over a manhole, metal grate, or other slippery surface it feels like the brakes momentarily stop working. this has happened on several occasions. *tr | |||
| 09/30/2009 | 5000 | 1 | |
| My 2010 prius has issues with braking under certain conditions. it seems to happen mostly when i am braking on bumpy roads or going over railroad tracks. when this happens, it literally feels like the car is surging forward with enough force to actually make me feel like it is accelerating. i thought it was just me but, then, my wife had the same issue just the other day. in addition to the bumpy road, it was icy and it caused her to slide through an intersection. today, i just heard about this issue from a co-worker so, i have decided to add mine to the list. *tr | |||
| 12/12/2009 | 5 | ||
| Sometimes when depressing the brake there is a brief period of time (.5 sec, or so) where the brakes stop working. it feels as though the brakes are slipping - letting up just enough to let the car continue rolling without any restriction. this has happened to me roughly 5 times since i purchased the vehicle in july of 2009. *tr | |||
| 11/20/2009 | 3500 | 1 | |
| 2010 toyota prius brake issues. when braking and the car hits a rough spot or pothole in the road the car does not brake well. in fact it lurches forward a few feet unexpectedly. *tr | |||
| 12/20/2009 | 5000 | 12 | |
| This has occurred several times (at least half a dozen times) since i've purchased my new 2010 toyota prius in july 2009. while driving at low speeds (~20 mph), the brakes have momentarily stopped working (causing the vehicle to surge forward) after driving over a pothole or similar other uneven surface. i have tried to adjust how i drive, in an effort to avoid the surprise of the surge, and potential accidents, related to this braking problem. i have not yet sought a repair from toyota. *tr | |||
| 02/02/2010 | 563 | 1 | |
| The brakes on my 2010 toyota prius failed during heavy traffic on the south 405 freeway in los angles nearly causing an accident. i almost rear ended a nissan 370 zx. in general the brakes seem substandard and feel mushy after driving in traffic or especially rain as we have been having in california. i am concerned about the brakes on the car and have started shopping for any upgrade kits that might be available. the brake failure was very unsettling and i read reports today about other prius drivers complaining as well. therefore i felt that i should file a complaint to ensure that the brakes are looked into by toyota. *tr | |||
| 01/18/2010 | 7000 | 1 | |
| I own a 2010 toyota prius and have noticed several issues when braking. on numerous occasions i have noticed that when i am braking and hit a pothole (or any form of dip in the road) my car seems to lunge forward (i.e., accelerate) until the tires are back on level pavement. one of the more frightening incidents occurred this past january. it was below freezing outside, but there had been no precipitation. however, there was one area near a red light where the sprinklers had been left on overnight. this area had turned into a small section of ice. i came up to the intersection and began to brake when i hit this spot. the brakes seemed to malfunction, but it wasn't as if i was skidding on the ice. rather, i could feel the car lunging forward again as it does when it hits a pothole. i heard on npr that other prius owners are experiencing similar issues so i wanted to lodge a complaint to ensure that this gets the proper attention. *tr | |||
| 01/08/2010 | 8000 | 1 | |
| From august 1st of 2009, i had been driving a 2010 prius. it is a great vehicle for economy but there is a problem with brakes. when brakes are applied and if there is a bump, the vehicle jumps forward or accelerates and the stopping distance increases. usually a safe distance behind a vehicle is when the tail pipe of the vehicle in front of you is visible. with the prius, to be safe, i stop at least ten feet behind a vehicle because if there is a bump, the vehicle will jump forward. *tr | |||
| 01/19/2010 | 9927 | 1 | |
| I have a 2010 toyota prius iii, purchased in june 2009, and have been experiencing brake problems for the past several months. if while braking i happen to hit a bump in the road my brakes fail for a brief moment causing the car to speed up rather than slow down. in order to stop the sudden acceleration i have to push the brake pedal down even further with more pressure and/or quickly lift my foot and brake again. this failure happens fairly consistently if the conditions are correct. the size of the bump in the road does not seem to matter as the brake failure has happened with everything from a small pothole to railroad tracks. the failure seems to last only a matter of seconds, but it's enough to possibly cause an accident especially while in a high traffic situation. i didn't start to notice this problem until close to a month into ownership of the vehicle but have become increasingly aware of it every time it happens. i have called my local toyota dealer and filed a complaint with them during my latest service appointment on 1/19/10 since i experienced the failure while on my way to the dealership, but they said they were unable to replicate the problem. *tr | |||
| 10/26/2009 | 5000 | 1 | |
| I drive a 2010 toyota prius. i have found on multiple times (5-10), while braking, the car seems to accelerate for a brief period of time (1 second) then begin to brake. this only happens on bumpy roads. it has happened ever since i purchased the vehicle in oct 2009. *tr | |||
| 12/23/2009 | 1000 | 1 | |
| While initiating braking at speeds <30mph, the brakes will infrequently, but occasionally engage w/ normal force before the brakes lose normal braking force for a split second before re-engaging (especially if brake pedal is depressed further). feels like an issue w/ engaging regenerative brakes. not easily replicable, has happened going downhill and while hitting a small pothole 2-3 times in last few months (vehicle purchased nov '09). *tr | |||
| 01/11/2010 | 950 | 1 | |
| I got into a wreck when driving my 2010 toyota prius because i feel the breaks did not work properly. the driver in front of me slammed on his brakes and i slammed on mine, i was in the middle of a 3 car pileup. i did not receive a citation because i was not following to close, which leads me to believe the breaks were not working as good as they should have. i am in industrial engineer and i believe this is most likely a computer problem. i drove a honda civic for 13 years and the breaks were much sharper, once activated they stopped the car much faster. i never got into a wreck with my civic, however, after owning my prius for only 2 weeks i got into a wreck. the incident number provided by the oklahoma city police department is 102719. *tr | |||
| 12/01/2009 | 8000 | 1 | |
| I have not yet had this problem corrected, but when i decelerate in my 2010 toyota prius and i happen to go over a bump (can be a pothole, or ice, etc.), in all weather conditions, the brake sometimes disengages briefly and i have to re-engage to re-establish braking. the loss of braking is unrelated to the position of my foot, it's as if the brake suddenly is not present (not a decrease in brake pressure). i've caught it quickly each time, so never thought to complain until the recent recalls. *tr | |||
| 02/03/2010 | 1 | ||
| I was driving this morning and hit small pot hole as i was trying to slow down after going over the pot hole, the brake did not seem to work for a brief moment, but it seem okay later on. *tr | |||
| 01/12/2010 | 1 | ||
| Listed one date, but not a single incident - has happened several times since i purchased car in aug 2009. when braking and hit a pothole or bump in the road, car accelerates/jerks forward for a moment. i have been lucky so far that i haven't been close to another car or a pedestrian when this has happened - though i came very close to hitting the back of one car that stopped quick in front of me when this happened. *tr | |||
| 01/04/2010 | 1000 | 1 | |
| I have a 2010 prius. when i brake over a bumpy surface, i loose braking power for 1-2 seconds. i have experienced this very serious problem at least 10 times. i noticed this problem soon after the purchase and continues. i have brought it back for service at toyota but i was told there was no reported problems and they could not find the problem when they road tested my car. this is documented in the maintenance records. a couple of times when i experienced this problem, i almost hit the car in front of me! there is a defective braking system. *tr | |||
| 02/01/2010 | 1000 | 1 | |
| The brakes on our 2010 toyota prius momentarily stop working at low speeds on bumpy roads. the brakes stop working for only a second or two when braking on a bumpy road surface, the reengage. this has happened multiple times since we bought the car new in july 2009. *tr | |||
| 02/01/2010 | 3000 | 1 | |
| 2010 toyota prius. going downhill and approaching a stop sign. my foot is steady on the brake and i am gradually coming to a stop. then, i inadvertently go over a bump in the road and the prius lunges forward. i had to immediately slam hard on the brakes in order to keep the car from going into the intersection. fortunately, there was no car or person in front of me as i was stopping. *tr | |||
| 01/05/2010 | 8500 | 14 | |
| I have a 2010 toyota prius that has often quit braking when i was driving on (a) a bumpy dirt road (2 times), (b) bumpy paved road (bumps caused by compacted snow) (2 times) and (c) a large dip in a road near my house (approx.10 times). the lapse in braking is probably less than a second, but scares me every time. before my prius, i have always owned all-wheel drive vehicles, and i just attributed the lack of braking on the fact that i no longer have all wheel drive. but now that i think about it. that shouldn't affect the braking! i can pretty much count on this happening over a bumpy road, or just one big bump, so if someone wants to drive my car and see what it does, that is fine with me. let me know if i can help get this problem fixed. i have not contacted the dealer about this. should i? *tr | |||
| 01/24/2010 | 6500 | 1 | |
| I own a 2010 toyota prius ii. i've noticed that when i run over a bump or a pothole on the road, the car seems to accelerate or jolt forward. it happens while i brake to a stop sign and run over a bump or pothole. it has also happened while letting go of the gas pedal but not stepping on the brake. therefore, i have to quickly step on the brake even harder to stop or slow down the car. during one incident, i nearly ran into a pedestrian crossing the street. it was a 4 way stop and i approached slowly. the pedestrian was directly in front of my vehicle and he had the right of way. i slowly approached and as my tire ran over the pained stop on the pavement, my vehicle jolted forward. it was a close call and it scared the pedestrian and myself. i went to a toyota dealership and has asked about the problem. they said they don't or have not had any complaints. told me that mine was probably an isolated incident. i went home and googled to see if other prius drivers had the same experience. i was shocked to have read a few incidents of other prius owners experiencing the same thing. what can i do about this matter if toyota claims that my experience was isolated. going back to the toyota dealership won't resolve anything. *tr | |||
| 01/29/2010 | 5000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 25 mph and attempting to slow the vehicle down, it lunged forward. the weather was not a factor and the failure occurred approximately four times. the failure has not been diagnosed by the dealer. the contact is concerned that the risk could cause a crash to occur. the failure mileage was 5,000. | |||
| 01/31/2010 | 6123 | 1 | |
| When the car is moderately braking (so called regenerative braking) and either (or both) of the rear wheels hits rough pavement (pot holes, metal plates covering road, rough rail-road crossings) the car ceases to break and the car actually accelerates (the actual time is about 1 second of no breaks and acceleration). i have had this happen 10 times since i bought the car in oct of 09. in the first month the dealer told me they had not heard of this. two months ago (dec)a mechanic told me that the electric engine kicks in (when regenative breaking) which drives the front wheels for a smoother breaking, so he surmised that if the breaking wheels are not making contact the car would speed up. on 1/13/2010 i met with the head of service for the dealership. he told me that the dealership tested a prius hooking it up to a computer and reproduced the environment of this complaint. although he admitted there was a momentary lack of breaking with the loss of back wheel contact with the pavement he claimed there was no acceleration noted. he also admitted the test was done at approx. 25mph. i suggested he should repeat the test at 40-50mph as this is where it is most notable. toyota's only suggestion is to drive carefully. they know they have a problem but this is there solution. i have been careful but on 1/31/10 i was driving at 45mph beginning to decelerate as the light ahead had turned red, and the truck infront of me had to panic stop as a car cut infront of him, at that moment my rear left wheel hit a pothole so i was not able to brake and actually accelerated toward the back of this truck. when the brakes reengaged i actually stopped 12 inches from his bumper. the consequences of this are an obvious safety hazard when you need to stop unexpectedly, you might well be endangering other drivers and/or pedestrians. *tr | |||
| 01/05/2010 | 200 | 1 | |
| Prius 2010 purchased 12/26/2009. when i'm braking downhill and hit a pot-hole, i get a big kick from the car. it feels like the abs system engages. it's happened a few times, and is predictable in certain routes. over time, i've adjusted to it and learned to apply the brakes differently. i'm also more careful to avoid the potholes. it's not happening as often now. it's startling, but i'm not sure it's dangerous. *tr | |||
| 01/15/2010 | 1100 | 1 | |
| 2010 third generation prius braking problem , loss of control on rough or slippery surface. *tr | |||
| 12/04/2009 | 2000 | 1 | |
| My husband and i recently purchased a 2010 toyota prius. we have noticed repeated problems with the braking system. whenever we go over a pothole while braking, the car surges forward. this does not just appear to be a problem with the pressure on the brake pedal; the passenger can feel the surge as well. this problem is quite alarming. we are taking the car to the dealer today to address this issue. *tr | |||
| 01/26/2010 | 3000 | ||
| I have a 2010 prius. when i go over small bumps while breaking, the brakes stop working and the car accelerates for a bit. disconcerting. *cn | |||
| 01/27/2010 | 2000 | 1 | |
| I noticed that the car lurches forward whenever driven on a manhole, or a rough patch on road, or a speed hump despite the braking. though i regain control within seconds, the moment of lurch is scary and makes me feel unsafe in other traffic situations. this happens at almost all speeds. i guess from now onwards i will maintain enough gap between this car and the forward one as i seem to be not able to trust this car any further. perhaps i will never recommend this car or any toyota to anyone in future. *cn | |||
| 01/23/2010 | 15300 | 1 | |
| While braking at a speed of about 25 mph, wheels hit a pothole and the car seemed to accelerate and lurch forward for a fraction of a second before braking resumed. *tr | |||
| 11/01/2009 | 1000 | 1 | |
| On rough roads and terrain, the 2010 prius that i recently bought consistently displays defective behavior. when i am trying to brake, and during braking hit a bump (always during a slow brake), the car actually speeds up. this has resulted in my changing my driving habits to be further away from cars in front of me, especially on bumpy roads. however, i am very concerned that at some point i won't be able to stop the vehicle properly when expecting the car to continue a slow brake, and instead it hits a bump and does not brake. i don't believe toyota is addressing the defect at this time from reports i have read. my mother (without going into any detail after having read reports) asked if i had experienced any issues with my prius and i told her of this exact issue prior to being aware of media coverage. *tr | |||
| 01/21/2010 | 860 | 1 | |
| While braking while going through shallow water and small pothole, the brakes felt like they slipped. the car stopped braking for about a second or two. *tr | |||
| 01/21/2010 | 5300 | 1 | |
| I own a 2010 toyota prius. on a number of occasions it feels as though this vehicle has lost braking force for a brief period of time (no more than 1 second) when the vehicle encounters an uneven road surface while braking. i believe this only happens while the vehicle is using regenerative breaking. when this happens the vehicle feels like it's lurching forward because the braking force has been removed. once i press harder on the brakes to force the friction brakes to apply, or after a brief period of time, the car does continue to slow down. i have not yet had an accident of any kind, but i can imagine how one could happen because of the increased stopping distance. *tr | |||
| 01/01/2010 | 6000 | 1 | |
| There are braking issues with my 2010 toyota prius. 1) in multiple instances, perhaps 12 times, when braking in snowy conditions, there is a moment where the brakes appear to be inactive. pressing much harder brings the brakes back on line. i have driven for 40 years, in dozens of cars and never found this. the situation is counter-intuitive, because i do not want to jam on the brakes in slippery conditions for obvious reasons. 2) in 3-4 instances when braking and going over a pothole or larger bump, the same as the above occurs, that is momentary loss of braking. again, pressing harder alleviates the problem. *tr | |||
| 12/28/2009 | 100 | 1 | |
| 2010 prius has jerky brakes! when backing down a slope like our driveway with my foot on the brake or when going down a small incline with my foot on the brake, the car often jerks. basically, as i start to back up it will jerk and then the car stops and then it releases again and then in a few more inches it jerks again and then releases and then jerks again. it does this going forward too. it doesn't happen every time i drive the car but it has happened maybe 20 times or so in the past couple months. my car is 6 months old with 3000 miles and this started happening within the few 100 miles of having the vehicle. *tr | |||
| 11/20/2009 | 1100 | 1 | |
| Bought new car less than 10 days. drove 10-15 mph in downtown la following a car. thought it was me since car was new but i step on brake but it didn't respond quickly enough..result...rearended another vehicle. head similar complaints from wife's coworkers about prius brake responses so i thought i should file complaint. love the car but brake needs to be fixed if defected. lost $500 in insurance deductible. for all i know, it may have been prius defected brakes. $2000 approx. damages to prius. *tr | |||
| 11/20/2009 | 1500 | 1 | |
| Occurring several times since purchase in october 2009, i experienced a slight burst of acceleration when hitting a pothole or sizeable bump in the road. during an exit onto a highway access road (20-30 mph) and a slowing for a 90 degree turn (10-20 mph) the car either disengaged the brakes or accelerated causing a very brief and unexpected lurch forward. after passing the road imperfection normal breaking returns. comparing this experience to other complaints filed, i believe my problem is the same and poses a potential danger to both the driver and traffic around the car. *tr | |||
| 01/01/2010 | 8900 | 1 | |
| Sometimes when going in to reverse the brakes grab aggressive resulting in a jerking motion. *tr | |||
| 10/01/2009 | 2000 | 1 | |
| On numerous occasions the car seems to surge when slowing down to stop at an oncoming intersection, stop light, or stop sign. this only occurs if the car comes to a pot hole or washboard surface in the road while in the process of normal braking. i don't believe the traction control is responsible because the traction light does not come on when this happens. it also does not seem to have anything to do with the abs because the car seems to surge for about a second due to the tire or tires loosing traction for a split second. i have duplicated this event multiple times in the same area and have learned to anticipate it when driving this route. however, when it happens unexpectedly, it certainly gets your attention. *tr | |||
| 10/30/2009 | 2000 | 1 | |
| I own a 2010 toyota prius ii. i have experienced a feeling that, while braking hitting a bump or pothole, the brakes completely release for about 1 second. this can be quite alarming if another vehicle is in front of you or worse, pedestrians are crossing in your path. i've been an employee of general motors for 25 years and worked in a department that made anti lock brakes for 8 of those years. this is not a normal function of that feature by any manufacturer. otherwise my prius is a technological tour de force except some dash buzzing and rattling. *tr | |||
| 12/23/2009 | 1150 | 1 | |
| Brakes did not appear to hold car when applied as car went over a bump in the pavement. seemed like the car briefly accelerated but then braking did return and slowed car properly. momentary apparent loss of braking control was frightening. *tr | |||
| 12/29/2007 | 1000 | 1 | |
| When i brake it sometimes seems that the car jolts forward for a short while, before i reapply the brakes. *tr | |||
| 12/01/2009 | 1200 | 1 | |
| I have a 2010 prius. i have noticed that when i go over uneven ground (like potholes or bumps) or slick surfaces (especially train tracks and sewer covers) my brakes don't seem to work. it feels like i am not in control of my car, and for 2-3 seconds the car is not braking even though my foot is pressing on the brake. *tr | |||
| 12/12/2009 | 2700 | 1 | |
| My new 2010 prius has a brake problem. i have owned the car about 2 months, and have put about 3000 miles on it. on three occasions, i have experienced a situation where the brakes suddenly released, and i had to slam on the brake pedal to prevent an accident. two of the situations happened when i was coming to a stop near an intersection (i was moving into a left turn lane, and suddenly the brakes released). the third time was while exiting a freeway, when i hit a pothole, and i felt the brake release. after the third experience, i recalled that, perhaps, the car ran over a small bump when i was moving into the left turn lane, and that may have helped trigger the release of the brake pedal. i took the car to the toyota dealer where i purchased it, but they were unable to find anything wrong. i subsequently read (via an msnbc news story that came out on december 29, 2009, and which is available at the link below) that others are having the same problem that i experienced. link to the news story: http://www.msnbc.msn.com/id/34611930/ns/business-autos/. *tr | |||
| 12/29/2009 | 540 | 1 | |
| When i brake my prius where the surface is very rough or broken, the brakes seem to engage initially but then release. i have to press down again very hard to get them to engage to the point of stopping the vehicle. yesterday, for example, while completing long slow braking at the bottom of a steep hill, i encountered some rough pavement just before the stop sign and suddenly the brakes seemed to release. when i forcefully pressed them again, they re-engaged and stopped the car, but not before it had nosed into the intersection. *tr | |||
| 08/15/2009 | 1 | ||
| When driving my new 2010 toyota prius iii model, i have experienced sudden loss of braking when the car hits a bump while braking. for example, when approaching a stop sign, i press down on the brakes, at which point the car begins to brake, and then the car hits a small bump or pothole and the brakes let up suddenly and it feels as though i lose control of the car while still approaching the intersection. i have to press down again hard on the brakes in order to stop before going through the stop sign after the brakes failed me. luckily, each time it has happened i have been able to stop in time, however i have to brake very hard in order to stop and it is not smooth. the dealer has so far ignored the complaint and has not repaired or replaced any parts. *tr | |||
| 07/10/2009 | 1 | ||
| My prius stops braking and almost feels like it is accelerating if i apply the brake just as i hit a bump or hole in the road. this feels very dangerous--if i were needing to stop suddenly to avoid a potential accident and my brakes did not work due to a bump in the road, it could lead me to crash into the object i'm trying to avoid. this has happened multiple times in the months since june 09 in which i bought my car.*tr | |||
| 12/01/2009 | 1 | ||
| 2010 prius brake lag. *tr | |||
| 12/28/2009 | 1000 | 1 | |
| I have a 2010 prius which i bought in august 2009. on several occasions, approximately 8-10 times, i have been braking at slower speeds when coming to an intersection. when i put my foot on the brake and the car happens to hit a bump or hole in the road and the car noticeably surges. my foot is not on the accelerator and this has nothing to do with the floor mats because my floor mat is pinned to the floor of the car. the most recent time this happened was 12/28/2009. *tr | |||
| 11/10/2009 | 4000 | ||
| Momentary brake failure. *tr | |||
| 12/09/2009 | 2500 | 3 | |
| I have a new 2010 prius ii with only 2500k miles on it. now three times for me and once for my husband we've had problems getting the car to stop/slow down while applying the brake on wet railroad tracks and prior to approaching a patch of ice in the road. you press the brake expecting it to slow down. instead a helplessness takes over as you feel as though the car has suddenly gone into auto pilot and you go sailing on as though the brakes never engaged and you instead hit the accelerator. thank god i'm a cautious driver and have never in 44 years had an accident of any kind but, even my defensive driving skills would be useless if the car does not do what i'm telling it to! i use this car daily to transport myself and two small children and now i'm scared to death to drive it. i was glad my husband had it happen too. i had not told him when it did it to me and the look on his face as he turned to me going over wet railroad tracks and said did you feel that? i felt validated knowing that it wasn't just me. today while with my mom and the kids i slowed down to navigate over an unavoidable patch of ice in an intersection. thank goodness no one was in front and the oncoming car attempting to turn left didn't go because i applied the brake and we just sailed on through, barely making the turn that i needed to make just beyond the intersection. my poor mother said, did you mean to do that? had any car or person been in the way i have no doubt i would have hit them. this is my first new car in years and now i'm petrified i'm going to crash it and hurt my family and others. this has to be investigated asap. please help! *tr | |||
| 12/07/2009 | 10600 | 1 | |
| I bought my 2010 prius in july 2009. since then there have been several incidents in which my car seemed to surge forward while i was in the process of braking and hit a bump, railroad tracks or pothole. initially, i convinced myself i must have been letting up on the brake when i hit the bump but when this same thing happened 3 days ago on slippery, icy roads, i knew for 100% certain i had not let up on the brake. my car surged as i was slowly pulling up to a stop sign and gently braking. i came very close to hitting the car in front of me, had to push down on the brakes very hard, which activated the abs. the abs had not been activated in any of the previous incidents because i had not needed to push hard on the brakes as i was in no danger of hitting anything. i have been driving toyotas since 1992 and am stunned that this problem is happening with no fix in sight. the dealership in my town assures us they've never heard of this before, although it is obviously happening all over the country. please investigate this. i have a 5 year old and i no longer feel safe driving my car with (or without) him in it. *tr | |||
| 11/12/2009 | 4000 | 1 | |
| My 2010 prius is only 2 months old & when applying the brakes, at times, it feels like i have been hit in the back by another vehicle and the entire car jumps forward before coming to a full stop. some what like an engine surge or that the brakes have not applied properly. i have reported this to my toyota service department & they have suggested that maybe it is due to the gas engine turning on or off at that exact moment. i find this to be very dangerous as there is a definite surge forward before the car stops. it has happened on different road surfaces, smooth, uneven & bumpy when both wet & dry. they did not find any solution to this problem & told me to continue to monitor it. they also advised that no recall has been issued or other complaints received. *tr | |||
| 11/02/2009 | 8000 | 1 | |
| A couple of times when i have applied pressure to the brakes on my 2010 prius, the car has accelerated momentarily instead of braking. *tr | |||
| 11/14/2009 | 10 | ||
| This has happened approximately ten times since we bought our 2010 prius in august. i apply the brakes, the car starts to slow down, and then accelerates briefly. i thought that it was just that the brakes let up for a moment, but the last couple of times it has happened i realized that it's more like the car actually accelerates for a moment. it has happened several times when i'm getting off the highway, on the exit ramp, so i'm going for a relatively fast speed to slowing down. but it happens other times, too--for instance, when i'm driving in the city and stopping for a red light. tonight it happened and i would say that the car moved forward quickly for about 15 feet. i have had the car checked by toyota who has found nothing wrong with my brakes, but i know that this is a potentially dangerous glitch. *tr | |||
| 07/16/2009 | 300 | 1 | |
| While applying the brakes to slow down or to come to a stop, if the car hits a bump, pothole or the like, the brakes release momentarily, causing the car?s momentum to continue forward longer/further than you would normally expect or want. this is especially dangerous when coming to a stop at a new york city pedestrian crosswalk or trying to slow down with a car close in front of you. i brought the car into the dealership and had it evaluated by toyota's field technical specialist who reported the following, when [the car] senses impending wheel slip, it will first disable the regenerative brakes. when it does that it feels like the car sort of accelerates because you lost the regenerative braking and you're using the brake assist that you have from your foot. so that is 'normal operation' on the system. it is working as designed. despite the explanations for why this is happening and whether or not this is ?normal operation?, the bottom line is, if the car is not stopping when it should, the safety of passengers and pedestrians is in jeopardy. i called and wrote two certified letters to toyota's customer experience department and to akio toyota, and received a phone call from an executive analyst from the president's office. no toyota representative would do anything in regards to the problem--they maintain that the braking operation is normal. i have seen other complaints on the nhtsa web site and on prius owners blogs that contradict toyota's assertion and support the claim that the brakes are indeed a safety issue that must be addressed.*tr | |||
| SERVICE BRAKES, HYDRAULIC | |||
| 05/31/2012 | 3 | 08/01/2010 | |
| 2010 toyota prius. consumer states two brake system failures *tgw the consumer stated the vehicle began making an unusual sound and after a few days, numerous warning lights appeared on the dashboard announcing a failure of the braking system. the vehicle was towed to the dealer. an inspection revealed the master cylinder, booster and ecu needed to be replaced. the consumer paid $ 3,246.83 for the repairs. however, nine days later, the unusual brake pedal sound returned, but the brakes worked and no warning lights appeared. the next day, the brake system completely failed while his daughter was driving the vehicle. again, the vehicle was towed to the dealer, where the technicians determined the vehicle needed a new brake booster assembly. the consumer was informed he would only be responsible for the labor costs of $ 255.48. the consumer believed the booster and brake booster were the same part, which was supposed to have been replaced several days prior. jb | |||
| 03/17/2012 | |||
| I was entering a parking space, i approached the space about 5 mph. the vehicle suddenly accelerated, the steering locked and the brakes went to the floor. the vehicle jumped the curbing and hit the truck in the next righthand space. it connected with the trucks left front fender.that stopped the vehicle. | |||
| 03/17/2012 | 20600 | ||
| I was entering a parking space. turned right into space. the vehicle accelerated, steering wheel locked, and brakes did not respond!.the car sped over the curbing and hit the left front fender of the truck in the next space. | |||
| 07/14/2011 | 1200 | ||
| When approaching an intersection i hit a pothole & the car suddenly quit braking and required me to do evasive driving maneuvers to assure i did not hit the vehicle in front of me or the light pole at the intersection. similar brake release has happened on multiple occasions. when bringing this matter to the dealership on multiple occasions i have been told that this is standard operation. when pressed they say itis just the way the car is designed. thus, my complaint to you from the lobby of my toyota dealership as they remove the braking comments, again, from my appointment record history. please force the ompany to resolve this matter as i worry about my health & that of my four children who ride in the car with me. it should not be acceptable for a company to know that their vehicle is unsafe & tell customers, sorry, we have a problem but we do not care... | |||
| 03/17/2012 | 20600 | ||
| I was entering a parking space. turned right into space. the vehicle accelerated, steering wheel locked, and brakes did not respond!.the car sped over the curbing and hit the left front fender of the truck in the next space. | |||
| 07/14/2011 | 1200 | ||
| When approaching an intersection i hit a pothole & the car suddenly quit braking and required me to do evasive driving maneuvers to assure i did not hit the vehicle in front of me or the light pole at the intersection. similar brake release has happened on multiple occasions. when bringing this matter to the dealership on multiple occasions i have been told that this is standard operation. when pressed they say itis just the way the car is designed. thus, my complaint to you from the lobby of my toyota dealership as they remove the braking comments, again, from my appointment record history. please force the ompany to resolve this matter as i worry about my health & that of my four children who ride in the car with me. it should not be acceptable for a company to know that their vehicle is unsafe & tell customers, sorry, we have a problem but we do not care... | |||
| 03/17/2012 | 20600 | ||
| I was entering a parking space. turned right into space. the vehicle accelerated, steering wheel locked, and brakes did not respond!.the car sped over the curbing and hit the left front fender of the truck in the next space. | |||
| 07/14/2011 | 1200 | ||
| When approaching an intersection i hit a pothole & the car suddenly quit braking and required me to do evasive driving maneuvers to assure i did not hit the vehicle in front of me or the light pole at the intersection. similar brake release has happened on multiple occasions. when bringing this matter to the dealership on multiple occasions i have been told that this is standard operation. when pressed they say itis just the way the car is designed. thus, my complaint to you from the lobby of my toyota dealership as they remove the braking comments, again, from my appointment record history. please force the ompany to resolve this matter as i worry about my health & that of my four children who ride in the car with me. it should not be acceptable for a company to know that their vehicle is unsafe & tell customers, sorry, we have a problem but we do not care... | |||
| 03/08/2012 | |||
| Brakes does not work properly on rough surface or bumpy road i have reported couple of times to the dealer but dealer try to mislead and confused me by saying that it is abs system which becomes active on bumpy road and it is a normal brake operation and we have no recall for this vehicle. please let me know what to do? thanks. | |||
| 02/24/2011 | 10000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that when starting the vehicle, he noticed that the brakes would not operate as they should if the vehicle was warm. when depressing the brakes, he would have to apply extreme force in order to get the brake pedal to engage. the vehicle was taken to the dealer where they advised the contact that they were unable to diagnose the failure. the contact mentioned that the failure only occurred when driving during the morning hours, after the vehicle had been sitting overnight. the manufacturer had not been contacted. the failure mileage was approximately 10,000. the vin was unavailable. | |||
| 02/24/2011 | 10000 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated that when starting the vehicle, he noticed that the brakes would not operate as they should if the vehicle was warm. when depressing the brakes, he would have to apply extreme force in order to get the brake pedal to engage. the vehicle was taken to the dealer where they advised the contact that they were unable to diagnose the failure. the contact mentioned that the failure only occurred when driving during the morning hours, after the vehicle had been sitting overnight. the manufacturer had not been contacted. the failure mileage was approximately 10,000. the vin was unavailable. kmj | |||
| 01/14/2012 | 46000 | ||
| While driving on interstate, the brake and vehicle stability assist lights suddently went on and a beeping alarm sounded. the brakes were not very effective, and it was very difficult to slow down and stop the car when we pulled over. we had the car towed to the dealership, where they informed us that the abs pump and the entire braking system needed to be replaced...on our one year old car! parts alone totaled over $4000 dollars, without labor. toyota was unwilling to replace, as the car was out of warranty for mileage. clearly a defective system in our car, but they were not willing to stand behind their product to cover. angry customer, especially given the fact that toyota states that they want to restore customer faith in their product. we were lucky that injury did not result from the failure of the parts needed to stop the car. | |||
| 02/02/2011 | 800 | ||
| When i am driving and hit a pothole, the car jolts forward. it's a pretty scary feeling to be out of control when that happens. i don't drive often, so i can only imagine how many more times this could happen. i do like my car and is only a year old, but this is quite concerning. i am extra careful, but what if i hit someone in the street or the car in front of me. i have seen a few complaints about this same exact reason. please something has to be done about it before someone gets hurt. | |||
| 01/14/2012 | 46000 | ||
| While driving on interstate, the brake and vehicle stability assist lights suddently went on and a beeping alarm sounded. the brakes were not very effective, and it was very difficult to slow down and stop the car when we pulled over. we had the car towed to the dealership, where they informed us that the abs pump and the entire braking system needed to be replaced...on our one year old car! parts alone totaled over $4000 dollars, without labor. toyota was unwilling to replace, as the car was out of warranty for mileage. clearly a defective system in our car, but they were not willing to stand behind their product to cover. angry customer, especially given the fact that toyota states that they want to restore customer faith in their product. we were lucky that injury did not result from the failure of the parts needed to stop the car. | |||
| 02/02/2011 | 800 | ||
| When i am driving and hit a pothole, the car jolts forward. it's a pretty scary feeling to be out of control when that happens. i don't drive often, so i can only imagine how many more times this could happen. i do like my car and is only a year old, but this is quite concerning. i am extra careful, but what if i hit someone in the street or the car in front of me. i have seen a few complaints about this same exact reason. please something has to be done about it before someone gets hurt. | |||
| 01/14/2012 | 46000 | ||
| While driving on interstate, the brake and vehicle stability assist lights suddently went on and a beeping alarm sounded. the brakes were not very effective, and it was very difficult to slow down and stop the car when we pulled over. we had the car towed to the dealership, where they informed us that the abs pump and the entire braking system needed to be replaced...on our one year old car! parts alone totaled over $4000 dollars, without labor. toyota was unwilling to replace, as the car was out of warranty for mileage. clearly a defective system in our car, but they were not willing to stand behind their product to cover. angry customer, especially given the fact that toyota states that they want to restore customer faith in their product. we were lucky that injury did not result from the failure of the parts needed to stop the car. | |||
| 02/02/2011 | 800 | ||
| When i am driving and hit a pothole, the car jolts forward. it's a pretty scary feeling to be out of control when that happens. i don't drive often, so i can only imagine how many more times this could happen. i do like my car and is only a year old, but this is quite concerning. i am extra careful, but what if i hit someone in the street or the car in front of me. i have seen a few complaints about this same exact reason. please something has to be done about it before someone gets hurt. | |||
| 12/30/2010 | 7000 | ||
| My driving record was clean until this 2010 prius. in one year i have had two accidents and several incidents, all of which i am now convinced due to brake failure. the first accident took place end of december 2010. i was going only about 10 mph. i hit the brakes repeatedly to try to get the car to stop. at the time i thought the car did not stop because of ice, but now after this 2nd accident and researching other prius reports, i am convinced this first accident was also because the brakes failed to work. since i did not suspect this at the time, i did not report it or have the brakes checked when the car was repaired. the 2nd accident was last night, dec 8th, 2011. i was traveling between 25-30 mph. the brakes clearly failed to work, and i hit a car stopped at the traffic light in front of me. i had plenty of distance to stop. the car did not slow down, if anything, it may have speeded up, but i cannot definitely say this, as i was too freaked out looking at the car i was going to hit to check my speed. the road was not icy. the impact demolished the front end of the prius. my air bag also did not inflate. i have whiplash from this second accident. fortunately no one else was injured. i now realize i had several other brake 'slippage' problems last winter that did not result in accidents and i did not identify then as brake problems. i thought it was my snow tires, even though they were brand new. i took the car back to the tire dealer last month who said they had no other complaints about that brand of tire, but i so concerned i had them replace the tires anyway with new ones of a different brand. i have opened a case with toyota after i started to research 2010 prius and found a recall on this model and year from before i leased this car. toyota says there is not a recall on my vin#. i want toyota to take responsibility for this accident and take back the car. | |||
| 06/01/2011 | 8122 | ||
| While driving, when vehicle is coasting (decelerating) in eco mode/engine off and brakes are applied under specific conditions such as passing over a man-hole cover or pothole the following ocurrs: car decelerates, as wheel/tire hits an anomoly in the road surface the brakes momentarily fail and the car surges forward as the engine starts. the sensation is a loss of braking force, plus momentary surge in the forward diection. reaction to this situation is mild panic and overbraking, (literally slamming on the brake pedal). this problem can be recreated faithfully at one road close to a stopsign/intersection. this problem has ocurred for months. recently (11/30/11) when following a car on this specific road the car stoped abruptly due to an animal jarting into the road. i applied the brakes, brake anomily ocurred and felt i could not stop in time. avasive driving measures forced me into the on-coming traffic lane to avoid a collision. toyota unwilling to address this issue at the dealer or corporate. | |||
| 11/12/2011 | 7500 | ||
| Tl* the contact owns a 2010 toyota prius. while driving approximately 20 mph the contact depressed the brake pedal and it fell to the floor board. the contact was able to avoid crashing into several vehicles and a street lamp. a police report was filed. the police officer inspected the vehicle and confirmed the brakes had failed. the vehicle was towed to an auto body shop. the vehicle was included previously in the recall under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module) and had the recall repairs performed. the vehicle was not repaired. the approximate failure mileage was 7,500. | |||
| 06/01/2011 | 8122 | ||
| While driving, when vehicle is coasting (decelerating) in eco mode/engine off and brakes are applied under specific conditions such as passing over a man-hole cover or pothole the following ocurrs: car decelerates, as wheel/tire hits an anomoly in the road surface the brakes momentarily fail and the car surges forward as the engine starts. the sensation is a loss of braking force, plus momentary surge in the forward diection. reaction to this situation is mild panic and overbraking, (literally slamming on the brake pedal). this problem can be recreated faithfully at one road close to a stopsign/intersection. this problem has ocurred for months. recently (11/30/11) when following a car on this specific road the car stoped abruptly due to an animal jarting into the road. i applied the brakes, brake anomily ocurred and felt i could not stop in time. avasive driving measures forced me into the on-coming traffic lane to avoid a collision. toyota unwilling to address this issue at the dealer or corporate. | |||
| 11/12/2011 | 7500 | ||
| Tl- the contact owns a 2010 toyota prius. while driving approximately 20 mph the contact depressed the brake pedal and it fell to the floor board. the contact was able to avoid crashing into several vehicles and a street lamp. a police report was filed. the police officer inspected the vehicle and confirmed the brakes had failed. the vehicle was towed to an auto body shop. the vehicle was included previously in the recall under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module) and had the recall repairs performed. the vehicle was not repaired. the approximate failure mileage was 7,500. rvk | |||
| 06/01/2011 | 8122 | ||
| While driving, when vehicle is coasting (decelerating) in eco mode/engine off and brakes are applied under specific conditions such as passing over a man-hole cover or pothole the following ocurrs: car decelerates, as wheel/tire hits an anomoly in the road surface the brakes momentarily fail and the car surges forward as the engine starts. the sensation is a loss of braking force, plus momentary surge in the forward diection. reaction to this situation is mild panic and overbraking, (literally slamming on the brake pedal). this problem can be recreated faithfully at one road close to a stopsign/intersection. this problem has ocurred for months. recently (11/30/11) when following a car on this specific road the car stoped abruptly due to an animal jarting into the road. i applied the brakes, brake anomily ocurred and felt i could not stop in time. avasive driving measures forced me into the on-coming traffic lane to avoid a collision. toyota unwilling to address this issue at the dealer or corporate. | |||
| 11/12/2011 | 7500 | ||
| Tl- the contact owns a 2010 toyota prius. while driving at approximately 20 mph the contact depressed the brake pedal. the brake pedal fell to the floor board. the contact was able to avoid other vehicles and crashed into a street lamp. the police arrived at the scene and a report was filed. the police officer inspected the vehicle and confirmed the brakes had failed. the vehicle was towed to an auto body shop. the vehicle was included previously in the recall under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module) and had the recall repairs performed. the vehicle was not repaired. the approximate failure mileage was 7,500. ds | |||
| 02/03/2010 | 750 | ||
| I'm an an owner of a 2010 prius. ten days or so after i purchased the car (in jan 2010), i experienced a loss in braking which resulted in damage to the bumper. numerous!!!! almost daily!!!! times since, even after the recall fix (done on my vehicle on 3/10/10), i have experienced, not only a loss of braking (usually while going over some little bump) but the car actually lurching forward. quite dramatic and scary, especially if there is a stop sign, intersection, a car or a person in front of you. last thurs (11/10/11), the road surface was wet, and i braked and had no, none , nada brakes and i rear ended the person in front of me. i paid for her damage out of my own pocket. i have not fixed the damage done to my car. brand new all season tires on the car, by the way. today (11/14/11), again the road suface was wet, i was behind a car in the right lane when a car inappropriately began merging from a ramp on the right, causing the car in front of me to suddenly slow down. i braked, and again, nothing!!! i quicked looked in my side view mirror and saw i had clearance to go in the left lane, and managed to avoid contact. 10 days after i purchased the 2010 prius, i said i wanted to return it and i sent in all this documentation certified mail, but toyota rejected everything. there is a defect in this car and it is unsafe. | |||
| 10/20/2011 | 16661 | ||
| When i was pulling into a parking spot, the brakes failed and the vehicle accelerated on its own causing me to run over the cement parking stop and crash into a cement wall. the vehicle then back up from the concussion and accelerated once again causing me to crash twice. i finally came to my senses and shut the vehicle off. i had been noticing the brakes feeling strange prior to this incident. this caused $6,400 in damage. toyota was alerted, had the vehicle inspected and claim it revealed no evidence of any sort of malfunction or defect. in my heart, i know that is not true. this was a very frightening experience and i dread this happening again. | |||
| 08/08/2011 | 8500 | 1 | |
| I just got an email from mycarstats.com which after reading through complaints one hit me and i thought that's exactly what happened to us. at the time, a couple of months ago, with toyota's known problems, i told my wife to remember this and let me know if it ever happens again (which it has not). the problem occurred when we were traveling at a low speed and i hit an speed bump the vehicle surged like i had bumped the gas pedal only i had my foot on the brake. | |||
| 10/20/2011 | 16661 | ||
| When i was pulling into a parking spot, the brakes failed and the vehicle accelerated on its own causing me to run over the cement parking stop and crash into a cement wall. the vehicle then back up from the concussion and accelerated once again causing me to crash twice. i finally came to my senses and shut the vehicle off. i had been noticing the brakes feeling strange prior to this incident. this caused $6,400 in damage. toyota was alerted, had the vehicle inspected and claim it revealed no evidence of any sort of malfunction or defect. in my heart, i know that is not true. this was a very frightening experience and i dread this happening again. | |||
| 08/08/2011 | 8500 | 1 | |
| I just got an email from mycarstats.com which after reading through complaints one hit me and i thought that's exactly what happened to us. at the time, a couple of months ago, with toyota's known problems, i told my wife to remember this and let me know if it ever happens again (which it has not). the problem occurred when we were traveling at a low speed and i hit an speed bump the vehicle surged like i had bumped the gas pedal only i had my foot on the brake. | |||
| 10/20/2011 | 16661 | ||
| When i was pulling into a parking spot, the brakes failed and the vehicle accelerated on its own causing me to run over the cement parking stop and crash into a cement wall. the vehicle then back up from the concussion and accelerated once again causing me to crash twice. i finally came to my senses and shut the vehicle off. i had been noticing the brakes feeling strange prior to this incident. this caused $6,400 in damage. toyota was alerted, had the vehicle inspected and claim it revealed no evidence of any sort of malfunction or defect. in my heart, i know that is not true. this was a very frightening experience and i dread this happening again. | |||
| 08/08/2011 | 8500 | 1 | |
| I just got an email from mycarstats.com which after reading through complaints one hit me and i thought that's exactly what happened to us. at the time, a couple of months ago, with toyota's known problems, i told my wife to remember this and let me know if it ever happens again (which it has not). the problem occurred when we were traveling at a low speed and i hit an speed bump the vehicle surged like i had bumped the gas pedal only i had my foot on the brake. | |||
| 01/10/2011 | 20000 | ||
| I gently drive my 2010 toyota prius in eco mode to maximize fuel economy. every weekday, since january 2011, i slow on a certain road to make a right turn. the road has a manhole cover recessed about 1 inch into the road along the path of my passenger side tires. every time i drive over this manhole cover the prius completely loses ability to brake for about 1/2 second, then braking is reestablished. there are other small bumps i drive over at other places which have the same results to the prius braking system. yesterday (26 oct 2011) something different but possibly associated happened while driving over a bump. this time i was accelerating after having made a right turn from a complete stop. while still accelerating after the turn i signaled left and proceeded to merge into the left hand lane. as the prius right front tire drove over the reflective lane marker imbedded in the road surface (the marker sticks out about 1/2 inch from road surface) the prius went out of control. the car suddenly and severely pulled hard to the left and rapidly slowed, i struggled against the cars actions to avoid hitting the raised center median. my first though was that i must have had a complete and instantanious blow out on the front left tire. my reaction was to immediately remove my foot from the accelerator. then as i was further assessing my options and the surrounding traffic the prius regained control and i was able to continue driving down the road as if nothing had ever happened. as the prius reinstated control i heard a beep come from the dashboard, however i was not quick enough to notice if any warning lights had engaged during the incident. when i looked at the displays everything appeared normal. i also check the car externally and everything appeared normal. all incidents are on high quality road surfaces with dry pavement. dealer indicates no recalls. | |||
| 10/24/2011 | 32000 | ||
| I depressed the break pedal and, instead of slowing down, my car surged forward for about 20 feet before brakes engaged and the car stopped --- just before the intersection (red light).i barely avoided hitting a truck in front of me (i was able to drive around).road surface was dry,without any potholes,bumps,etc. i took the car to the toyota service center.after checking my car they informed me that the computer did not detect any malfunctions, the test drive was also uneventful,so that nothing could be done to resolve the problem. this car's breaking is obviously unpredictable and it is ,without a doubt, not safe to drive, | |||
| 05/03/2011 | 300 | ||
| Car abs light comes on, and at the same time vehicle loses brake assist or brake assist becomes uneven. car has had three brake light failures - 1 with previous owner and 2 with current owner. first failure was repaired by resetting the computer, we think. with current owner, dealer has replaced the antilock sensor two times, and with the second sensor replacement toyota now has pronounced the vehicle as safe. since the brakes failed after the first sensor replacement, we have little confidence that the problem was solved with the second sensor replacement. we are concerned about vehicle safety, especially since the car is frequently driven in heavy washington beltway traffic. typically car runs for some time and then fails, so we do not know if and when it will happen again. dealer and toyota have been unsupportive to our concerns. | |||
| 02/12/2010 | 200 | ||
| My issue is similar to others that have complained. when traveling a low speeds and i hit an unexpected bump the vehicle surges forward. this is very dangerous and one that i would hope toyota take notice and address immediately. | |||
| 01/03/2010 | 300 | ||
| I first reported this to toyota prior to the initial 2010 recall, the car was less than 1 month old and i have reported it on numerous occasions via the toyota website. on the few occasions i lent the car to friends they have had the same experience. description: when traveling at relatively slow speeds and an unexpected bump comes up and the brakes are engaged early, once going over the bump the car losses brake power for a few seconds and jolts forward. it is very disconcerting b/c in those split seconds if one is not prepared the car hurls forward and could if all odds are against me, the car could kill someone if they are walking in front of the car. i reported it to my dealer, my dealer's inspector went out on test drive with me, we were able to recreate the incident when he was driving as there are a few spots in my neighborhood that it happens every time. he put the computer on the car but it did not read there was a problem. he called the national technical office, who eventually came out, i left the car at the dealership. they recreated the problem and according to the local technician they put a camera in the wheel to film the situation. i was later told by my local technician that it was determined that there was not a problem with the car and that the situation is normal where the tire catches an uneven surface and goes into overdrive. i have had dreams that i would kill someone in this car. noone is allowed to use this car for the same reason. i fear for my life and the life of anyone walking in front of me on a street i do not know. it happens almost every 2 weeks. it is scary! please help! this is the first new car i bought in 25 years and i am unable to get rid of it b/c i had to pay so muh for it. when i inquired what my options were, toyota said none, that there is no problem with the car. | |||
| 05/01/2011 | 10000 | ||
| My 2010 prius lurches forward when the brakes are applied and i hit a bump or other uneven surfaces. | |||
| 08/20/2011 | 15000 | ||
| I purchased my 2010 prius in august 2010. for the past year, i have had problems with the brake system when attempting to brake at low speeds. when braking at low speeds, such as stopping at a red light or stop sign, if the car hits a bump or a pothole, it stops braking and instead accelerates forward a bit. it is extremely frightening and i find it exceptionally dangerous. i have come extremely close to hitting the vehicles in front of me on several occasions. i now have to try to conscientiously adjust and drive very, very slowly when braking on uneven road surfaces since i have come to anticipate this problem. however, many times there is no way to avoid the car's surge of power. i believe this is a highly dangerous situation with my vehicle. a simple internet search will demonstrate that this problem exists and was not resolved with the recall in march 2010. i purchased my prius, new, five months after the problem was allegedly fixed and i have had this problem since day one. the brakes have been examined on my vehicle by a toyota dealer and they appear to be fine. i highly believe that a recall is appropriate to fix this dangerous braking issue. | |||
| 04/01/2010 | 1000 | ||
| When i pressed the brakes while approaching a stop i hit a bump in the road (large pot hole). the pressure on the brake released for approximately 1 second before the pressure on the brake pad re-engaged. this same scenario can happen any where from 0 to 2 times per week. in the winter when the road surface is not clear it is apparant that when the brake disengages the anti-lock doesn't engage because the car slides. i have slide through a red light, onto a busy street. fortunately there have not been cars in the vacinity. i have taken the car to the dealership 3 times for this problem with no solution or recommendation. | |||
| 07/25/2011 | 29980 | ||
| 2010 toyota prius, with 29000 miles. pulling into a parking lot at a very slow speed, applied brakes to stop car, but it did not stop it, it started jerking forward, until it stopped when it struck a fence, injuries occured as a result, seat belt did not old back driver, and driver wipped forward and back striking steering wheel. vehicle was towed to toyotta dealer. still wating for toyota corp to advise of error that occured, data from cmputer has been downloaded by a private firm and delivered to toyota. 8/9/11 accident occured on 7/25/11 at 14:30 | |||
| 01/20/2010 | 100 | ||
| Tl-the contact owns a 2010 toyota prius. the vehicle was included in the recall under nhtsa campaign id number 10v039000 (service brakes, air:antilock:control unit/module) and had the repairs performed. the contact stated that after the repairs were performed, while driving approximately 15 mph over a uneven road surface, the brake pedal was depressed and the vehicle suddenly accelerated for a few moments. the contact also stated that the failure only occurred when driving over an uneven road surface. the vehicle was taken to an authorized dealer for diagnostics, where the technicians were unable to diagnose the failure. the vehicle was not repaired. the approximate failure mileage was 100. the vin was not available. sm. | |||
| 07/25/2011 | 29980 | ||
| 2010 toyota prius, with 29000 miles. pulling into a parking lot at a very slow speed, applied brakes to stop car, but it did not stop it, it started jerking forward, until it stopped when it struck a fence, injuries occured as a result, seat belt did not old back driver, and driver wipped forward and back striking steering wheel. vehicle was towed to toyotta dealer. still wating for toyota corp to advise of error that occured, data from cmputer has been downloaded by a private firm and delivered to toyota. 8/9/11 accident occured on 7/25/11 at 14:30 | |||
| 01/20/2010 | 100 | ||
| Tl-the contact owns a 2010 toyota prius. the vehicle was included in the recall under nhtsa campaign id number 10v039000 (service brakes, air:antilock:control unit/module) and had the repairs performed. the contact stated that after the repairs were performed, while driving approximately 15 mph over a uneven road surface, the brake pedal was depressed and the vehicle suddenly accelerated for a few moments. the contact also stated that the failure only occurred when driving over an uneven road surface. the vehicle was taken to an authorized dealer for diagnostics, where the technicians were unable to diagnose the failure. the vehicle was not repaired. the approximate failure mileage was 100. the vin was not available. sm. | |||
| 07/25/2011 | 29980 | ||
| 2010 toyota prius, with 29000 miles. pulling into a parking lot at a very slow speed, applied brakes to stop car, but it did not stop it, it started jerking forward, until it stopped when it struck a fence, injuries occured as a result, seat belt did not old back driver, and driver wipped forward and back striking steering wheel. vehicle was towed to toyotta dealer. still wating for toyota corp to advise of error that occured, data from cmputer has been downloaded by a private firm and delivered to toyota. 8/9/11 accident occured on 7/25/11 at 14:30 | |||
| 01/20/2010 | 100 | ||
| Tl- the contact owns a 2010 toyota prius. the vehicle was included in the recall under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module) and had the repairs performed. the contact stated after the repairs were performed while driving at approximately 15 mph over a uneven surface, while depressing the brake pedal the vehicle suddenly accelerated briefly. the contact stated the failure only occurs when driving on an uneven surface. the vehicle was taken to the dealer for diagnostics. the technicians were unable to diagnose the failure. the vehicle was not repaired. the vin was not available. the approximate failure mileage was 100. ds | |||
| 08/02/2011 | 20472 | ||
| Ever since i purchased my 2010 prius in november, 2009 the brakes have been a problem. when braking while driving over a bump or pothole the car looses braking ability and there is a surge of power. the dealership claims there is no problem and the recall work has not made a noticeable difference. | |||
| 07/25/2011 | 29980 | ||
| 2010 toyota prius, with 29000 miles. pulling into a parking lot at a very slow speed, applied brakes to stop car, but it did not stop it, it started jerking forward, until it stopped when it struck a fence, injuries occured as a result, seat belt did not old back driver, and driver wipped forward and back striking steering wheel. vehicle was towed to toyotta dealer. still wating for toyota corp to advise of error that occured, data from cmputer has been downloaded by a private firm and delivered to toyota. 8/9/11 accident occured on 7/25/11 at 14:30 | |||
| 01/20/2010 | 100 | ||
| Tl- the contact owns a 2010 toyota prius. the vehicle was included in the recall under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module) and had the repairs performed. the contact stated after the repairs were performed while driving at approximately 15 mph over a uneven surface, while depressing the brake pedal the vehicle suddenly accelerated briefly. the contact stated the failure only occurs when driving on an uneven surface. the vehicle was taken to the dealer for diagnostics. the technicians were unable to diagnose the failure. the vehicle was not repaired. the vin was not available. the approximate failure mileage was 100. ds | |||
| 08/02/2011 | 20472 | ||
| Ever since i purchased my 2010 prius in november, 2009 the brakes have been a problem. when braking while driving over a bump or pothole the car looses braking ability and there is a surge of power. the dealership claims there is no problem and the recall work has not made a noticeable difference. | |||
| 01/20/2010 | 100 | ||
| Tl- the contact owns a 2010 toyota prius. the vehicle was included in the recall under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module) and had the repairs performed. the contact stated after the repairs were performed while driving at approximately 15 mph over a uneven surface, while depressing the brake pedal the vehicle suddenly accelerated briefly. the contact stated the failure only occurs when driving on an uneven surface. the vehicle was taken to the dealer for diagnostics. the technicians were unable to diagnose the failure. the vehicle was not repaired. the vin was not available. the approximate failure mileage was 100. ds | |||
| 08/02/2011 | 20472 | ||
| Ever since i purchased my 2010 prius in november, 2009 the brakes have been a problem. when braking while driving over a bump or pothole the car looses braking ability and there is a surge of power. the dealership claims there is no problem and the recall work has not made a noticeable difference. | |||
| 07/20/2011 | 160000 | ||
| Brakes failed. 2010 toyota prius. 160,000 miles on vehicle. when i started the car, i had no brakes. when i put the car in gear, i then had brakes. i had brakes when i pulled up to a stop sign. as i waited for traffic i then had no brakes. when i began to move i had brakes, but then as i gained speed, the brakes went out. i managed to stop with the emergency brake. checked the brake fluid: completely full. dealer said the master cylinder went bad. orginal brakes on vehicle; not even half used. highway miles on vehicle. very hot day. i believe it is electrical, dealer says mechanical. had there been an accident, this incident would be looked into. as it is, no dealer will look into a car that is out of warrenty. i complained for 5 months about the brakes when i first bought the car new. dealer told me that there is nothing wrong with the brakes. even after the recalls, there still is problems with the brakes. now i believe there is a problem with the master cylinder, -the electric component part of it- but toyota will only look into it when there is a serious accident. | |||
| 07/01/2011 | |||
| I am experiencing the same problem as many other 2010 prius owners. the brakes fail briefly when driving over large potholes located on a grade. i have discussed the problem with a toyota dealership and was told that they are aware of the problem but until a recall/solution is issued there is nothing that they can do. they told me to brake harder when driving over potholes to compensate for the problem; the brakes, however, do not fail with every pothole. it seems like the potholes have to be a certain size, yet from the driver's seat, it's extremely difficult to judge the size of the pothole and thus if the car will lose braking power. so, slamming on the brakes for every pothole is just as dangerous as not since stopping too quickly can cause a rear-end accident. i live in a city overwhelmed with hills and potholes so this problem happens nearly every time i drive the car. it has gotten to the point where i am fearful to drive my car since i have had several close calls and know that unless this problem is fixed, it will eventually cause an accident. briefly losing braking power may seem insignificant but until you have actually driven the car and experienced the lack of control the only comparison that i can make is driving on ice. you feel utterly helpless for the time that the car is out of your control, even if it's only a few seconds, during which time you are legally and morally accountable for what your car does or hits. there are plenty of other road hazards and safety concerns, whether or not my car is going to stop when i apply the brakes should not be one of them. i implore you, please investigate this problem and require that toyota take responsibility for fixing it and ensuring the safety of prius owners, pedestrians and other drivers. thank you. | |||
| 05/07/2010 | 20000 | ||
| I was making a sharp right turn to pull into a parking space, slowing to a stop. the car suddenly and unexpectedly accelerated forward out of my control. i applied the brakes as hard as i could, with no response. as the car was racing into a tree, i shut off the engine by pushing the power button to off. the car knocked down a tree and came to a stop on top of it. | |||
| 06/13/2011 | |||
| Car stop on crowed warning appered on dash hybid over heating car stop. had to restat car. by time pulled to shoulder warning light whent off. car smelled of burning this happen on friday on sat brough car to santa monica they had no answer. as needed more info had car towed on monday left car till sat. their diagnosis using gas and brake at same time how do you do this with one right foot? . you never drive with the left foot computoe is in error | |||
| 09/15/2010 | 100 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving approximately 5 mph when the anti-lock brakes kicked in and brought her to a sudden stop. the vehicle was then inspected by a dealer and they advised her that they were unable to diagnose the failure. the vehicle has not been repaired. the failure mileage was approximately 100. tb | |||
| 06/13/2011 | |||
| Car stop on crowed warning appered on dash hybid over heating car stop. had to restat car. by time pulled to shoulder warning light whent off. car smelled of burning this happen on friday on sat brough car to santa monica they had no answer. as needed more info had car towed on monday left car till sat. their diagnosis using gas and brake at same time how do you do this with one right foot? . you never drive with the left foot computoe is in error | |||
| 09/15/2010 | 100 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving approximately 5 mph when the anti-lock brakes kicked in and brought her to a sudden stop. the vehicle was then inspected by a dealer and they advised her that they were unable to diagnose the failure. the vehicle has not been repaired. the failure mileage was approximately 100. tb | |||
| 06/13/2011 | |||
| Car stop on crowed warning appered on dash hybid over heating car stop. had to restat car. by time pulled to shoulder warning light whent off. car smelled of burning this happen on friday on sat brough car to santa monica they had no answer. as needed more info had car towed on monday left car till sat. their diagnosis using gas and brake at same time how do you do this with one right foot? . you never drive with the left foot computoe is in error | |||
| 09/15/2010 | 100 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving approximately 5 mph when the anti-lock brakes kicked in and brought her to a sudden stop. the vehicle was then inspected by a dealer and they advised her that they were unable to diagnose the failure. the vehicle has not been repaired. the failure mileage was approximately 100. tb | |||
| 05/14/2011 | 65000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated while driving at low speeds in inclement weather and trying to decelerate the vehicle would not stop moving and it crashed into the rear of another vehicle. there were no injuries from either vehicle. a police report was filed. the vehicle was not towed because it wasn't a major crash. the manufacturer was then contacted and they advised him that they were unaware of any failures in regards to the brakes. the failure mileage was approximately 65,000. | |||
| 05/14/2011 | 65000 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving at low speeds in inclement weather and trying to decelerate and the vehicle would not stop. the vehicle crashed into the rear of anothert vehicle. there were no ijuries from either vehicle. the police were called and a report was available. the vehicle was not towed because it wasn't a major crash. the manufacturer was then contacted and they advised him that they were unaware of any failures in regards to the brakes. the failure mileage was approximately 65,000. tb | |||
| 05/02/2011 | 97000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that the brakes were applied but the vehicle did not respond or slow down. the abs warning light illuminated and the driver had to use the parking brake to stop. the vehicle was taken to an authorized dealer who replaced the master cylinder. the failure continued. the vehicle was taken back to the dealer where it was scheduled for a second repair. the vin was unavailable. the current mileage was approximately 100,000 and the failure mileage was 97,000. | |||
| 05/02/2011 | 97000 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving, the driver applied the brakes but the vehicle did not respond or slow down. the abs light illuminated and the driver had to use the parking brake to stop. the vehicle was taken to an authorized dealer who replaced the master cylinder. the failure continued. the vehicle was taken back to the dealer where it was being repaired again. the vin was unavailable. the current mileage was approximately 100,000. the failure mileage was 97,000-bk | |||
| 04/22/2011 | 2600 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated they crashed into a wall because of having the brake pedal engaged. the contact stated the accelerator pedal and brake pedal was not positioned properly. the contact tried to stop the vehicle and his foot continued to slide off of the accelerator and brake pedal. the manufacturer inspected the vehicle and stated the space between the accelerator and brake pedal meet their specifications. the failure and current mileages were 2,600. | |||
| 05/02/2011 | 97000 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving, the driver applied the brakes but the vehicle did not respond or slow down. the abs light illuminated and the driver had to use the parking brake to stop. the vehicle was taken to an authorized dealer who replaced the master cylinder. the failure continued. the vehicle was taken back to the dealer where it was being repaired again. the vin was unavailable. the current mileage was approximately 100,000. the failure mileage was 97,000-bk | |||
| 04/22/2011 | 2600 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated they crashed into a wall because of having the brake pedal engaged. the contact stated the accelerator pedal and brake pedal was not positioned properly. the contact tried to stop the vehicle and his foot continued to slide off of the accelerator and brake pedal. the manufacturer inspected the vehicle and stated the space between the accelerator and brake pedal meet their specifications. the failure and current mileages were 2,600. | |||
| 05/02/2011 | 97000 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving, the driver applied the brakes but the vehicle did not respond or slow down. the abs light illuminated and the driver had to use the parking brake to stop. the vehicle was taken to an authorized dealer who replaced the master cylinder. the failure continued. the vehicle was taken back to the dealer where it was being repaired again. the vin was unavailable. the current mileage was approximately 100,000. the failure mileage was 97,000-bk | |||
| 04/22/2011 | 2600 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated they bump into a wall because their foot did not stay on the brake pedal. the contact stated the accelerator pedal and brake pedal or not positioned properly. the contact stated when they try to stop the vehicle and slide their foot from the accelerator or the brake, their foot slides under the brake. the manufacturer inspected the vehicle and stated the space between the accelerator and brake pedal meets their specifications. the failure mileage and current mileages were 2,600.rl | |||
| 04/26/2011 | 16000 | ||
| Sudden loss of braking while slowing down while going over a bump. apparently the regenerative braking fails, and the car relies on only friction braking when going over a bump. this gives the feeling of brake failure and unintended acceleration, and the only way to prevent an accident is to push hard on the brakes. this happens consistently, and has since the car was new. the toyota abs ecu flash was performed, and made little or no difference.this is very disconcerting to say the least, and will lead to accidents. toyota claims that this is the normal operation of the abs system - in reality it has nothing to do with the loss of traction. check out these data: http://priuschat.com/forums/gen-ii-prius-technical-discussion/93233-data-brake-loss-aka-sudden-acceleration-after-bump.html. | |||
| 10/15/2009 | 1000 | ||
| Tl* the contact owns a 2010 toyota prius. while the contact was driving approximately 10 mph, the brake pedal was engaged and the vehicle began to lurch forward unexpectedly. the failure recurred whenever driving in rainy weather conditions or bumpy and icy road surfaces. the vehicle was taken to an authorized dealer and repaired under nhtsa campaign id number: 10v039000 (service brakes, air:antilock:control unit/module). the recall remedy failed to correct the problem and the failure persisted after the repair. the failure mileage was approximately 1,000. the vin was unavailable. | |||
| 10/15/2009 | 1000 | ||
| Tl-the contact owns a 2010 toyota prius. while the contact was driving approximately 10 mph, the brake pedal was engaged and the vehicle began to lurch forward unexpectedly. the failure occurred whenever driving in rainy weather conditions or bumpy and icy road surfaces. the vehicle was taken to an authorized dealer and repaired under nhtsa campaign id number 10v039000 (service brakes, air:antilock:control unit/module). the recall remedy failed to correct the problem and the failure persisted after the repair. the failure mileage was approximately 1,000. the vin was unavailable. js | |||
| 03/31/2011 | |||
| Driving on a rain covered road and hit a rough spot in the road. brakes did not engage at all for about 1 second. was able to stop after that and just avoided rear ending a car at a stop sign. | |||
| 02/12/2011 | 1000 | ||
| 2010 toyota prius--inconsistant braking and varying brake pedal pressure requirements. when braking, brake pedal travel distance varies. at times no brake action after pedal has been partially depressed requiring more brake pressure to re-engage brakes. sometimes occurs when gas engineswitches to electric or vice versa, other times inconsistent brake action occurs with either power source. frankly you never know how the brakes will perform. taken to dealer-i was told no problem found. they would not keep the car for days to continue tests. this is my fourth prius and this vehicle has more problems and concerns than all the others combined. | |||
| 03/03/2011 | 4020 | ||
| I drive a 2010 toyota prius. in the last week i have noticed on several occasions that when braking when coming up to a traffic light, all of a sudden the pressure on the pedal decreases and the breaking power fades. then in panic i start pumping the pedal which after a split second get's the brakes to kick in again. luckily the car has so far then come to a halt before i hit the car in front of me. my toyota dealer has dismissed my claim saying that they checked the car and the computer shows no error code. they told me that everything is fine basically dismissing my claims of a near crash. they say there is nothing they can do and if the computer shows no error everything must be fine. the first occurrence of this was on the same day when i had to brake very hard to avoid a crash. on that occasion the brakes worked fine but driving home the same night i had the first occurrence of the above described situation resulting in a near crash. | |||
| 02/14/2010 | 9999 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated while attempting to brake the brake did not respond he had to increase the stopping distance he experienced the failure several times, but the failure occurred intermittently. the vehicle was taken to the dealer whom performed a diagnosed, but was unable to locate a failure code the vehicle was also test driven, but the failure could not be recreated. the manufacturer was contacted and advised to take the vehicle to local dealership. the vehicle has not been repaired. the failure and the current and the current mileage were 9,999. li | |||
| 02/07/2011 | 4000 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that while driving approximately 30 mph and when approaching a red light the brakes had failed. the vehicle was able to stop by her veering off the road into a snow bank. the vehicle was towed to a dealer and advised her that they would have to turn the vehicle over to corporate and wait for an answer. the vehicle has not been repaired. the failure and current mileages were approximately 4,000. tb | |||
| 08/01/2010 | 100 | ||
| I purchased a new 2010 toyota prius (model 3) in late july 2010. in almost every respect, this car is wonderful. however, the car has consistently diminished (apparent) braking effectiveness when the brakes are applied and the car goes over a patch of rough road, pothole, etc. when the brakes are applied with a consistent pressure, the car feels as if the brakes disengage upon entering a rough patch of road. this happens every time. (for example, i notice it every time i slow down at my street corner where there is a long-standing patch of rough pavement.) since 1994 i have owned 7 cars with abs (hondas, nissans, and toyota camrys), i have never experienced a similar sensation in any of these other cars. i have adapted my driving style to this anomaly, but i worry about my kids and friends who may occasionally drive my prius. it is unnerving to apply the brakes and have them feel like they are disengaging when you enter a rough patch of road. since this problem occurs consistently, i think it should be possible to test to see if this apparent braking anomaly is actually increasing stopping distances. (for example, test prius vs. model without apparent braking anomaly on smooth and rough roads to see if relative braking distances of prius are more heavily affected by rough roads that comparison model.) p.s. after purchasing my new prius, i noted that my dealer's service blog, had several reports of similar problems that were not corrected after servicing by the dealer. some posts noted that the dealer had applied a software fix that toyota distributed in early 2010. my car was manufactured after that fix. | |||
| 01/20/2011 | 22000 | ||
| Tl - the contact owns a 2010 toyota prius. the contact stated that while driving over railroad tracks she tried to apply the brakes and the pedal went all the way down to the floor. the contact mentioned that she waited a couple of seconds to applied the brakes again and it work. the dealer was contacted but they said that it was normal for the vehicle to loose the brakes on uneven surfaces. the manufacturer was not contacted. the vehicle was not repaired. the failure and current mileage were 22,000. pm | |||
| 01/05/2011 | 8227 | ||
| Incident #1 on january 5, 2011 - sudden change in braking performance caused crash. accident occurred in company parking lot. there was snow on the ground. i attempted to slow down to make a right turn. the car initially started to slow down. but as i attempted to turn to the right the car started to slide. i tried to control the slide with the brakes but the car would not slow down and it slid into a stone curb causing over $1,700 in damage to the car. there was no feeling of any braking occurring. there was no feeling of the abs brakes pulsing to control the slide. incident # 2 on january 19, 2011 - sudden change in braking performance created dangerous stopping condition. i was approaching a red light at an intersection going about 30 mph. there was no snow on the ground. the road was wet. i applied the brakes and the car initially started to slow down. suddenly the brakes were no longer slowing the car down. i thought the car was going to fail to stop at the intersection. i increasingly applied more and more pressure on the brake pedal and the car began to slow down. the car did finally stop and did not cross the intersection. the brake pedal pressure that i had to apply was extreme - it felt like a car with power assisted brakes but that the power assist had failed. there was no feeling of the abs brakes pulsing to control the braking of the car. | |||
| 01/20/2011 | 22000 | ||
| Tl - the contact owns a 2010 toyota prius. the contact stated that while driving over railroad tracks she tried to apply the brakes and the pedal went all the way down to the floor. the contact mentioned that she waited a couple of seconds to applied the brakes again and it work. the dealer was contacted but they said that it was normal for the vehicle to loose the brakes on uneven surfaces. the manufacturer was not contacted. the vehicle was not repaired. the failure and current mileage were 22,000. pm | |||
| 01/05/2011 | 8227 | ||
| Incident #1 on january 5, 2011 - sudden change in braking performance caused crash. accident occurred in company parking lot. there was snow on the ground. i attempted to slow down to make a right turn. the car initially started to slow down. but as i attempted to turn to the right the car started to slide. i tried to control the slide with the brakes but the car would not slow down and it slid into a stone curb causing over $1,700 in damage to the car. there was no feeling of any braking occurring. there was no feeling of the abs brakes pulsing to control the slide. incident # 2 on january 19, 2011 - sudden change in braking performance created dangerous stopping condition. i was approaching a red light at an intersection going about 30 mph. there was no snow on the ground. the road was wet. i applied the brakes and the car initially started to slow down. suddenly the brakes were no longer slowing the car down. i thought the car was going to fail to stop at the intersection. i increasingly applied more and more pressure on the brake pedal and the car began to slow down. the car did finally stop and did not cross the intersection. the brake pedal pressure that i had to apply was extreme - it felt like a car with power assisted brakes but that the power assist had failed. there was no feeling of the abs brakes pulsing to control the braking of the car. | |||
| 01/20/2011 | 22000 | ||
| Tl - the contact owns a 2010 toyota prius. the contact stated that while driving over railroad tracks she tried to apply the brakes and the pedal went all the way down to the floor. the contact mentioned that she waited a couple of seconds to applied the brakes again and it work. the dealer was contacted but they said that it was normal for the vehicle to loose the brakes on uneven surfaces. the manufacturer was not contacted. the vehicle was not repaired. the failure and current mileage were 22,000. pm | |||
| 01/05/2011 | 8227 | ||
| Incident #1 on january 5, 2011 - sudden change in braking performance caused crash. accident occurred in company parking lot. there was snow on the ground. i attempted to slow down to make a right turn. the car initially started to slow down. but as i attempted to turn to the right the car started to slide. i tried to control the slide with the brakes but the car would not slow down and it slid into a stone curb causing over $1,700 in damage to the car. there was no feeling of any braking occurring. there was no feeling of the abs brakes pulsing to control the slide. incident # 2 on january 19, 2011 - sudden change in braking performance created dangerous stopping condition. i was approaching a red light at an intersection going about 30 mph. there was no snow on the ground. the road was wet. i applied the brakes and the car initially started to slow down. suddenly the brakes were no longer slowing the car down. i thought the car was going to fail to stop at the intersection. i increasingly applied more and more pressure on the brake pedal and the car began to slow down. the car did finally stop and did not cross the intersection. the brake pedal pressure that i had to apply was extreme - it felt like a car with power assisted brakes but that the power assist had failed. there was no feeling of the abs brakes pulsing to control the braking of the car. | |||
| 01/14/2010 | 5800 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated while driving at approximately 10 mph the vehicle in front stop for the traffic light, the contact applied the brake the vehicle did not stop it suddenly accelerated and crashed into vehicle rear end. the vehicle was taken to the dealer whom performed a diagnosed that was unable to locate a failure code. the failure mileage was 5,800 and the current mileage was 58,030. li | |||
| 01/20/2011 | 22000 | ||
| Tl - the contact owns a 2010 toyota prius. the contact stated that while driving over railroad tracks she tried to apply the brakes and the pedal went all the way down to the floor. the contact mentioned that she waited a couple of seconds to applied the brakes again and it work. the dealer was contacted but they said that it was normal for the vehicle to loose the brakes on uneven surfaces. the manufacturer was not contacted. the vehicle was not repaired. the failure and current mileage were 22,000. pm | |||
| 01/05/2011 | 8227 | ||
| Incident #1 on january 5, 2011 - sudden change in braking performance caused crash. accident occurred in company parking lot. there was snow on the ground. i attempted to slow down to make a right turn. the car initially started to slow down. but as i attempted to turn to the right the car started to slide. i tried to control the slide with the brakes but the car would not slow down and it slid into a stone curb causing over $1,700 in damage to the car. there was no feeling of any braking occurring. there was no feeling of the abs brakes pulsing to control the slide. incident # 2 on january 19, 2011 - sudden change in braking performance created dangerous stopping condition. i was approaching a red light at an intersection going about 30 mph. there was no snow on the ground. the road was wet. i applied the brakes and the car initially started to slow down. suddenly the brakes were no longer slowing the car down. i thought the car was going to fail to stop at the intersection. i increasingly applied more and more pressure on the brake pedal and the car began to slow down. the car did finally stop and did not cross the intersection. the brake pedal pressure that i had to apply was extreme - it felt like a car with power assisted brakes but that the power assist had failed. there was no feeling of the abs brakes pulsing to control the braking of the car. | |||
| 01/14/2010 | 5800 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated while driving at approximately 10 mph the vehicle in front stop for the traffic light, the contact applied the brake the vehicle did not stop it suddenly accelerated and crashed into vehicle rear end. the vehicle was taken to the dealer whom performed a diagnosed that was unable to locate a failure code. the failure mileage was 5,800 and the current mileage was 58,030. li | |||
| 01/05/2011 | 8227 | ||
| Incident #1 on january 5, 2011 - sudden change in braking performance caused crash. accident occurred in company parking lot. there was snow on the ground. i attempted to slow down to make a right turn. the car initially started to slow down. but as i attempted to turn to the right the car started to slide. i tried to control the slide with the brakes but the car would not slow down and it slid into a stone curb causing over $1,700 in damage to the car. there was no feeling of any braking occurring. there was no feeling of the abs brakes pulsing to control the slide. incident # 2 on january 19, 2011 - sudden change in braking performance created dangerous stopping condition. i was approaching a red light at an intersection going about 30 mph. there was no snow on the ground. the road was wet. i applied the brakes and the car initially started to slow down. suddenly the brakes were no longer slowing the car down. i thought the car was going to fail to stop at the intersection. i increasingly applied more and more pressure on the brake pedal and the car began to slow down. the car did finally stop and did not cross the intersection. the brake pedal pressure that i had to apply was extreme - it felt like a car with power assisted brakes but that the power assist had failed. there was no feeling of the abs brakes pulsing to control the braking of the car. | |||
| 01/14/2010 | 5800 | ||
| Tl- the contact owns a 2010 toyota prius. the contact stated while driving at approximately 10 mph the vehicle in front stop for the traffic light, the contact applied the brake the vehicle did not stop it suddenly accelerated and crashed into vehicle rear end. the vehicle was taken to the dealer whom performed a diagnosed that was unable to locate a failure code. the failure mileage was 5,800 and the current mileage was 58,030. li | |||
| 08/06/2010 | 1000 | ||
| Tl - the contact owns 2010 toyota prius. while driving approximately 15 mph and applying pressure to the brakes the vehicle would not stop. the vehicle was taken to the dealer and the technicians were unable to replicate the failure. the manufacture stated that they could not assist with repairs if the failure could not be replicated. the vehicle was not repaired. the failure mileage was 1000 and current mileage is 6000. pm | |||
| 10/23/2010 | 28000 | ||
| I had taken an exit after having driven about 15 miles on hwy 85 & had my foot off the accelerator as there was red signal ahead. before coming to a full stop the light turned green so put my foot on the accelerator but than had to brake almost within seconds as i saw a car ahead at the next green light not moving. the car felt like it surged & drove what i believe was abnormal distance with my front crashing under the back of an old buick. i had 3 other family members in the car who felt the same jerk. the road was wet from prior rain. there was not much damage to the car i crashed into but my car was considered total loss, 15 months old with 28k miles. no air bags were deployed. ironically i had picked up the car from the dealership just that morning because my daughter had complained about the jerking when applying brakes when she drives 20 miles to work in a stop & go traffic on hwy 280. this was not the first time she had complained to dealership about this either. the dealership like before reported nothing wrong. the car had the sw upgrade done when it was recalled in feb/mar. post the crash incident toyota had their expert examine the brakes who reported, brake reservoir fluid level 5mm above the max level & some white substance suspended in it near the surface, but still brake system to be in good condition. | |||
| 08/06/2010 | 1000 | ||
| Tl - the contact owns 2010 toyota prius. while driving approximately 15 mph and applying pressure to the brakes the vehicle would not stop. the vehicle was taken to the dealer and the technicians were unable to replicate the failure. the manufacture stated that they could not assist with repairs if the failure could not be replicated. the vehicle was not repaired. the failure mileage was 1000 and current mileage is 6000. pm | |||
| 10/23/2010 | 28000 | ||
| I had taken an exit after having driven about 15 miles on hwy 85 & had my foot off the accelerator as there was red signal ahead. before coming to a full stop the light turned green so put my foot on the accelerator but than had to brake almost within seconds as i saw a car ahead at the next green light not moving. the car felt like it surged & drove what i believe was abnormal distance with my front crashing under the back of an old buick. i had 3 other family members in the car who felt the same jerk. the road was wet from prior rain. there was not much damage to the car i crashed into but my car was considered total loss, 15 months old with 28k miles. no air bags were deployed. ironically i had picked up the car from the dealership just that morning because my daughter had complained about the jerking when applying brakes when she drives 20 miles to work in a stop & go traffic on hwy 280. this was not the first time she had complained to dealership about this either. the dealership like before reported nothing wrong. the car had the sw upgrade done when it was recalled in feb/mar. post the crash incident toyota had their expert examine the brakes who reported, brake reservoir fluid level 5mm above the max level & some white substance suspended in it near the surface, but still brake system to be in good condition. | |||
| 12/07/2010 | 18654 | ||
| Tl- the contact owns a 2010 toyota prius. the contact had the recall repair done on the vehicle in february of 2010, which deals with the anti lock control unit module. the recall is under campaign number 10v039000 for the service brakes. the contact was trying to stop at a light and when they went hit some rough pavement and the vehicle did not stop properly and they went through an intersection. the dealer has looked at the vehicle and stated that everything is running properly. the contact stated the vehicle his still braking properly after the recall repair. the failure mileage was 18654 and the current mileage is 19000.rl | |||
| 10/30/2010 | 1700 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that he had to do a panic stop and noticed the vehicle hesitated before it stopped. as a result, the contact rear ended another vehicle in a minor collision. there were no injuries. there was a police report filed. the vehicle was taken to an authorized dealership but the dealer stated that they could find nothing wrong with it. the manufacturer had not been notified. the vin was unavailable when the complaint. the current mileage was approximately 2,000. the failure mileage was approximately 1,700-bk | |||
| 04/15/2010 | 2 | 01/23/2010 | |
| 2010 toyota prius. s10 appropriate handling- letter from regarding toyota problems *tgw the consumer stated when he went to start his vehicle, the brake pedal went straight down to the floor and the vehicle would not start until pressure was applied to the brake. after trying several things, the brake finally came on. the consumer took the vehicle to the dealer, but they were unable to find anything wrong. on april 27, 2010, the incident happened again with the brakes. a notice appeared on the dash to put the vehicle in park. when he did, the brake came on. *jb | |||
| 10/08/2010 | 2500 | ||
| On 2010 prius, brakes seem to release, generally for a moment, at low speeds when going over a bump on passenger side of the car. car seems to accellerate momentarily, until brakes are hit again. this has happened a number of times but is sometimes hard to recreate. car has 3000 miles. dealer says brakes operating as designed and recall adjustment has been made. | |||
| 09/24/2010 | 1500 | ||
| Tl- the contact owns a 2010 toyota prius. while traveling 2 mph the contact applied the brakes and noticed that they would not engage causing the contact to crash into a nearby wall. no one was injured and a police report was not filed for the incident. the vehicle was taken to the dealership where the contact was informed that the failure could not be reproduced. there were no prior warnings. the current and failure mileages were 1500. bml | |||
| 08/19/2010 | 7548 | ||
| Brake failure. 2010 toyota prius iv -- the vehicle's brakes lose pressure and the break pedal loses pressure (regardless of how hard i press on the brakes as this is happening). the brakes are temporarily disabled and the vehicle unexpectedly accelerates as a result of its momentum prior to initializing the breaks. the failure occurs when the vehicle passes over a dramatic change in the texture/friction of the road surface. i have experienced the failure dozens of times, when driving over metal surfaces (manhole covers, pothole covers, temporary construction covers, metal expansion inserts in bridges, etc), as well as small patches of condensation (such as small puddles under a bridge when the surrounding road is dry). the failure is not related to hydroplaning, and has occurred at speeds as low as 15 mph. the failure causes the vehicle to accelerate until a few seconds after it has passed over the slick surface. after returning to the regular road surface, the brakes slowly regain traction and resume their function of slowing the vehicle down. this failure occurs every time these criteria are met -- regardless of whether road conditions are wet or dry. so far no accidents have resulted from this failure on my vehicle, but i have been unable to control the problem or decrease its effects. again, this problem occurs even at low speeds, such as in city traffic while braking to stop at an intersection. many times it has caused me to nearly hit the vehicle in front of mine. so i have been forced to leave an extra 40 feet between my vehicle and anything in front of me, which is not always feasible because i live in an urban area. i have already taken this vehicle into the toyota dealership as part of their recall to fix the software which controls the interactions between the hybrid brakes and the normal disk brakes. local dealerships have consistently denied that there is a problem with the vehicle and the toyota company will not return my phone calls. | |||
| 07/27/2010 | 10000 | ||
| 1. pulling in to a parking space, slight uphill angle, stepped on brake and car lurched forward over a barrier and into another vehicle. 2. the vehicle gave no prior indication of a problem. extensive damage to hood, bumper, right fender and radiator. 3. vehicle was towed to a repair facility. once repaired, vehicle was taken to dealer for diagnostic of brake failure problem where it currently remains. | |||
| 08/10/2010 | 6000 | ||
| Tl- the contact owns a 2010 toyota prius. while traveling 20 mph over a rough terrain the contact applied the brakes noticed that they would not engage. the vehicle has not been diagnosed and there were no prior warnings. the current and failure mileages were 6000. bml | |||
| 06/26/2010 | 100 | ||
| While braking and the car is slowing down to below about 10 miles an hour, it will surge ahead if it goes over rough pavement or a bump. the abs recall has been performed on the car, and it was brought back into the dealer after the recall and the dealer confirmed that the recall was applied. the dealer claims that this behavior is normal. the car has been back to the dealer two times so far. | |||
| 04/12/2010 | 9000 | ||
| The contact owns a 2010 toyotaprius, when you hit a pot hole or some other uneven surface there is a delay in breaking, it feels as if you can | |||
| 01/10/2010 | 5000 | ||
| Tl- the contact owns a 2010 toyota prius. she stated that while driving in hilly areas, whenever she applied her brakes the vehicle would not stop, at times it could not be depressed, the pedal remained irresponsive and that the failure occurred only after the recall number 10v039000: service brakes, air:antilock:control unit/module was performed on the vehicle. the vehicle was taken to the dealer who advised that the vehicle was test driven and the failure could not be duplicated. the manufacturer was contacted through email. there was no response at this time. the failure mileage was 5,000 and current mileage was 9,000. | |||
| 06/13/2010 | 8500 | ||
| I own a 2010 toyota prius, and last week i had the abs ecu updated per the recall. prior to the update, braking over a bump or pothole would result in a little 'skip' on the road as the brakes kind of fluttered. i just pressed the pedal a little harder and all was well. post update, i have a serious safety problem. i have experienced the brakes disengaging completely as the car hits a bump. the little 'skip' is gone, and now there's a panic moment where the car lurches forward with no brake pressure. i have to really mash the pedal the get the brakes back. prior to the update i was a little worried that the slight increase in braking distance might have resulted in a crash. now, i am very afraid. the car is almost uncontrollable when this happens, and it is always unexpected. i feel that if i crash, i will be held liable for something that isn't my fault. i ask the nhtsa to revisit the toyota recall for the 2010 prius and make them prove they fixed the problem. i do not think they will be able to. | |||
| 06/10/2010 | 13259 | ||
| I have a 2010 prius that has had the brake recall fix applied. but when i am turnin right appling the brake and then hit bump/chuck hole the brakes fade for just a few seconds. no accidents but does not give driver any confidence | |||
| 02/26/2010 | 3000 | ||
| Tl-the contact owns a 2010 toyota prius. the vehicle was previously remedied for the recall associated with nhtsa campaign id number 10v039000. after receiving the vehicle form the authorized dealer the failure began to recur intermittently. the vehicle experiences an increased stopping distance when trying to brake at lower speeds. the failure mileage was 3,000 and the current mileage was 14,000. sm. | |||
| 05/15/2010 | 10000 | ||
| 2010 prius - this car was recalled for a braking problem. the software fix was completed on my car, but the same braking problem still exists in the car. a follow-up visit to the dealer complaining of the problem still happening resulted in nothing being done to fix the braking problem. the problem : occasionally when braking over a bump the brakes disengage for a brief time (probably less than a second) and result in an increased stopping distance and possible accident. in other words the recall fix has done nothing to correct the problem - - if it was bad enough to have a recall - and it doesn't get fixed - then it must still be a significant problem.... this problem occurs often - but not easily demonstrated. it has happened since the car was new and we now have 11,000 miles and it still happens. | |||
| 06/03/2010 | 9872 | ||
| Today at yet another check for my 2010 prius to try to discover the cause for the continual surging, i was informed that 160 times in the last 1 1/2 months i have driven with both the gas and brake pedals depressed simultaneously. this is a ridiculous assertion and completely false. obviously there is an issue with the computer software in my prius brakes. this is further evidence that there is a serious safety issue with the prius brakes. | |||
| 09/01/2009 | 300 | ||
| Tl-the contact owns a 2010 toyota prius. the contact stated that when he applies the brakes while driving at approximately 30 mph the vehicle will intermittently surge forward. this failure has been a recurring issue since the vehicle was purchased. the vehicle was taken to an authorized dealer where the contact as informed there was nothing wrong with the vehicle. the failure continues to recur intermittently. the failure mileage was 300 and the current mileage was 9,650. sm. | |||
| 06/01/2010 | 9780 | ||
| I was driving the car on a road approx. 25 mph. i hit a dip in the road right as i was braking to make a left turn. the automobile surged forward despite my foot being on the brake. this has happened repeatedly since having the recall fix!!! this problem must be fixed. we have repeatedly contacted toyota about the problem and get the same answer every time - there is no problem. i do not consider it to be normal for the car to surge forward while my food is firmly on the brake. what does it take to get something done! we tried arbitration to get rid of our vehicle and toyota basically said that we were lying about the problem. please review and recall. i know by reading the other complaints that i am not the only one having this issue. this is a safety hazard!!! | |||
| 06/02/2010 | 17000 | ||
| Tl - the contact owns a 2010 toyota prius. he stated that on june 2, 2010, while pulling into a parking space the vehicle accelerated and did not stop which cause the vehicle to hit the curb and then eventually stop. the vehicle sustained minor damges tothe bumper,under carriage. the dealer was contacted and was informed that someone would contact him. the failure and current mileage were 17,000 | |||
| 05/29/2010 | 5000 | ||
| Our new 2010 toyota prius lost its brakes for a short period when driving down a steep hill at slow speed (10 mph). although i was pressing on the brake pedal the brakes completely released for roughly 2 seconds and then re-applied. we had just driven over a small but sharp bump. i understand how abs works, and this was not abs. the brakes completely released and the car jumped forward - it jumped because the hill was quite steep. what is most disturbing is that the car had just been serviced (may 29th) and the event happened may 31. when i called the dealership they said the car had been recalled for a brake problem but they had forgotten to do the recall. further, i have owned the car for five months and have not received a recall notice from toyota. | |||
| 05/31/2010 | 9800 | ||
| My 2010 toyota prius continues to experience the momentary loss of braking power even after the recall fix was applied back in march. i experience the same loss of braking power as i did in the past when going over bumps, pot holes and the like, especially when hitting the brake on a decline. i brought my car back to the dealership and a field tech specialist was unable to reproduce the problem - but i have experienced it a half dozen times since the recall and have notified toyota's hq - they have not responded. i continue to feel as if pedestrian, other driver, and my own safety are at risk with this continued brake issue that toyota cannot seem to fix. | |||
| 05/27/2010 | 9000 | ||
| All brake rotors had a crack perpendicular to the rotation. | |||
| 05/16/2010 | 1000 | ||
| Brake failure occurred when vehicle was coming off freeway exit ramp at approximately 40 mph on uneven, curvy road. while approaching intersection from several hundred feet away, brakes failed to engage for about a second; also felt the vehicle lurch forward in that lapse of time. repeated pressure on the brakes finally brought car to stop but not in time to prevent collision with incoming pickup truck on straightaway traffic. police arrived at scene but did not file report because nobody was injured. body shop estimated damage on front bumper at $1500. vehicle was brought in to dealer on 05/18/2010 for inspection. service manager said ecu brake recall had been conducted on said vehicle in february 2010 at different dealership. currently still awaiting on conclusive report from toyota engineers. car only has 1000 miles on odometer. brake failure has been experienced some ten times in the 2 months of owning this vehicle, usually during higher speeds over uneven road. came close to accidents on three instances, not including this actual one. this is a serious safety defect that could result in fatalities. please investigate! | |||
| 05/19/2010 | 500 | ||
| As noted in nhtsa investigation pe10006. i entered an incident date of 5/19/2010, but this happens consistently with my 2010 toyota prius (purchased oct. 2009). it is as described in the investigation summary; a momentary lapse in braking while traveling over uneven or rough surfaces. i had the software update performed last week and interestingly, it seems to have gotten worse since then. it's very disconcerting and alarming. fortunately, it's never happened when there is a car in front of me (as on the exit ramp of a freeway or prior to a stoplight), but if it does, i have no doubt that it will result in a crash, for which i will no doubt be wrongly blamed and cited. i'm to the point that i would prefer that my wife not drive the car and am considering what action i can take with toyota --- returning the car, some kind of financial compensation etc. when i had the software update performed, i noted the problem to the dealership and made them write it on the service order to document it. this complaint is also to document the problem. i should note that we own a 1996 4runner and a 2003 highlander (my parents own a 2010 prius and 2010 camry as well), so it's not like i have something against toyota. also, i travel a lot for my job (80%+) and over the last 6 months have probably driven at least 20 different makes and models of cars. this has never happened in any car i have owned or rented. | |||
| 05/19/2010 | 1100 | ||
| Regenerative braking - loss of braking, when slowing over rough road surface approximately 5-9mph. brakes go away, resulting in further pedal application to avoid striking vehicle ahead. incident occurs sporadically, however has occured at least 8 times in the two months we've owned vehicle. | |||
| 05/19/2010 | 400 | ||
| Two issues withing 5 minutes (will file two reports). first issue occurred while backing out of level parking space. brakes grabbed on and off as if i were pressing brakes firmly, releasing, then pressing firmly again, even though i was lightly holding the brakes as i was reversing. second issue occurred a few minutes later while braking on a descent, going approximately 35-40 mph. my front left tire went over a manhole cover which caused a mild bump, which resulted in a momentary release of the brakes. car was purchased new last week (may 13, 2010), has approximately 400 miles, and has no recalls outstanding. | |||
| 05/17/2010 | 1 | 08/01/2009 | |
| 2010 toyota prius. consumer states vehicle did not seem to stop immediately when he hit a bump. *tgw | |||
| 05/09/2010 | 11000 | ||
| While driving on bowman road in west little rock, i was braking as i approached the intersection at markham. the car suddenly felt like it was surging forward and not braking at all as i drove over a man-hole cover. this was especially pronounced as i was going downhill and turning to the right at the yield sign. my wife noticed it from the passenger seat as well. we momentarily felt as if we would not stop and end up in the path of oncoming traffic. this happened after this vehicle has already been recalled for this same problem. unfortunately, the software upgrade did not fix this dangerous problem. | |||
| 02/13/2010 | 7000 | ||
| 2/13, the day after my car was fixed under the recall, my brakes failed. i was on the way to the airport, and the brakes failed . when i returned home from my trip, i brought it in to toyota kearny mesa in san diego, who found nothing wrong. my brakes failed again a week ago. i was dricing on a smooth road, slowing down for a light, when suddenly the car speeded up and i went stright though the red light. no cars were nearby, so i did not crash and no one was hurt. again, toyota found nothing wrong. they tell me that they can't fix it unless they can replicate the problem. they want me to return the loaner car tomorrow morning and drive home with my prius and i'm scared. | |||
| 04/21/2010 | 4500 | ||
| Toyota 2010 prius brake recall patch was only partly effective. in the winter the car could loose braking for 6 to 8 feet after hitting a rough spot, pot hole etc. now it skips maybe 2 to 3 feet. the dealer and toyota factory people tell me it's normal anti-lock brake action. i say i have driven many cars with anti-lock brakes and they to not loose brake action, they pluse the brakes. the toyota factory people tell me the car is still braking even if it feels like it isn't. i do not agree with that for a second. the dealer wants to test drive the car to determine condition. however it only happens maybe once a week and not at every bump or jolt of the suspension. i feel toyota does not have a proper fix and is not working on one. they are trying to talk us prius owners into accepting this flaw as normal for the car. | |||
| 04/21/2010 | |||
| I received delivery of my newly purchased 2010 prius on 10/17/09. the brakes locked up on several occassions during nov and dec 2009, on rough roads and during slippery conditions. i had the brakes checked 1/2/10 by the toyota dealer; they were unable to duplicate the conditions. on approximately 2/4/10, the brakes failed during an ice storm and the car ended up on someone's front lawn. there were no injuries or property damage, thus the incident was not reported. following this incident, i took the car to the toyota dealer for inspection and received a loaner car. while the dealer had my car, toyota issued a recall for the prius' brakes. the brakes on my prius were reprogrammed 2/9/10. since then i have had four instances where the brakes locked up, the latest of which was 4/21/10. the car is currently at the toyota dealer being inspected. the car was purchased at colonial toyota in milford and all subsequent service has been performed by that dealer. | |||
| 04/19/2010 | 431 | ||
| Braking issue - 2010 toyota prius. we purchased a 2010 prius last week, asked the dealership if any/all recall work had been completed and were told 'yes.' yet, i believe that the dealership misrepresented the facts - both my husband and i have experienced temporary loss of braking in our new 2010 prius while going over rough patches in the road and over speed bumps/traffic calming bumps. we both doubt that the abs recall work was actually done before we took possession of the car last week, so we're taking it back to the dealership today. i am not afraid to buy a toyota and understand that other car manufacturers have experienced quality issues resulting in recalls, but i am very upset that we asked about the recall work and still ended up with a car with braking issues. i don't want to drive a potentially unsafe vehicle. | |||
| 04/07/2010 | 5600 | ||
| The vehicle was parked and was started. the vehicle was put into reverse and the car then just lurched for a moment. i jammed on the brakes and the brake pedal became very hard and came all the way to the top . i held the brake and then just shut the car off. upon restart the vehicle was ok. it did not replicate the problem again. this is the 4th or 5th time this has happened and it is always the same. the car is parked and i have to put it in reverse. | |||
| 04/06/2010 | 8000 | ||
| I have the 2010 prius and had the brake recall work preformed on my vehicle. it didn't work. when i go down a hill and hit a speed bump even at 5 miles an hour while braking the car doesn't brake for a few seconds. i move 5-10 feet uncontroled. if there are cars backed up at the stop i would hit them. | |||
| 04/01/2010 | 1 | 09/22/2009 | |
| 2010 toyota prius. consumer states brake problems. *tgw the consumer stated it appeared as if the software patch for the 2010 prius was not enough as he has experienced one more occurrence since getting the patch on march 1, 2010. prior to the software patch, the consumer experienced brake stuttering may be 10 times. the consumer stated he read where the switch from regenerative to mechanical braking occurred at about 9 mph he noticed that the brake stuttering seemed to occur closer to 20 mph. it would not just occur when hitting a small pothole, but sometimes with just steady braking on smooth surfaces. on a smooth surface, the feeling would be a bit of a jerk. he would decelerate with pressure against the seat belt and his hands on the steering wheel, then there would be 1/4 of a second where there was no pressure because the brakes were not working, then he would jerk forward as the brakes began to work again, there was a somewhat different sensation when hitting a small pothole. the most recent momentary brake failure occurred while stopping for a red light. the consumer stated he slowed down to 20 mph when he felt a different type of stuttering than previously. it may have been a double stuttering, but it seemed harder. *jb | |||
| 08/01/2009 | 1 | 07/08/2009 | |
| 2010 toyota prius. consumer states rear brakes released or slipped and vehicle sped up. *tgw the consumer stated within the first month of driving, she drove over an uneven, perhaps potholed area in the road and it seemed as if the vehicle's rear brakes released or slipped, and the vehicle sped up. the vehicle then seemed to correct itself and drove smoothly ahead with proper braking. *jb | |||
| 03/15/2010 | 6400 | 14 | |
| We own a 2010 prius, [xxx] . it is one of the vehicles that was subject to the abs actuator ecu update safety recall notice. i took the car in early this month and had the update installed. the problem described, regarding light pedal pressure and the car not braking correctly occasionally seems to fit well with what i experienced. in the middle of braking, trying to make full use of the regeneration feature, the car sometimes stopped braking momentarily. i experienced that this was more likely to happen on a bumpy road. in the 6 months or so i drove the car, prior to the update, i experienced this problem roughly 12 times. i am sad to report however that in the two weeks since the car was updated, i have already experienced two additional events after the update that seem exactly like what i experienced before the update. i took the car back to my dealer (prestige toyota, in ramsey, nj) and someone there tested it and was convinced that the update was installed. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tr | |||
| 03/22/2010 | 6275 | 4 | |
| 2010 toyota prius iii abs recall was applied by dealer toyota city of brooklyn park, mn on 3/17/10. prior to this recall update to my car, i had experienced the issue once since purchase of the car on 10/23/09. now since the abs update has been applied, i have experienced the issue 3 times in 5 days. the last experience was today and the worst yet where i felt i lost brakes completely while slowing the car and braking. i estimate my speed was about 15 mph going over a minor pot hole. *dt | |||
| 02/15/2010 | 7500 | ||
| I was going down a hill (approx 20mph) in my subdivision (north on harter farms rd) when i saw a car pulling out onto the road from his yard. i applied the brakes hard for about 100yds before attempting to turn into palimino dr to avoid a collision. i did not make the turn and hit a stop sigh and then the guard rail at approx 5mph. there was about 1-2 of snow on the road and i had driven up the same hill from a stop without slipping a tire just 15 min prior. i never felt any pulsation from the abs during the attempt to stop. afterwards when i got home i attempted to stop hard (to test the brakes) on level ground and again never felt the pulsation from the abs system. there was braking but i felt it was greatly reduced. i have not returned the car to toyota for their recall yet. if you wish to examine the car you may. i am sure you can duplicate the results. | |||
| 03/06/2010 | 1000 | ||
| The prius purchased 1/3/10. on 3/6/10 the vehicle would not stop and hit another car. the vehicle was towed to north hollywood toyota. the brakes failed to operate causing the prius to hit another car. this all occrred within the county of los angeels, calfiornia. the vehicle can be examined for this defect. | |||
| 01/01/1901 | 1 | ||
| S10 appropriate handling re 2010 toyota prius safety complaints. *tgw the consumer stated the cruise control does not immediately cancel, controlling the throttle under light braking. this allowed the vehicle to accelerate up a hill while the consumer was simultaneously applying the brakes. the brake lights did not come on under light braking and the brakes did not work when braking over rough surfaces such as railroad tracks. *jb | |||
| 03/17/2010 | 4650 | ||
| I previously filed a complaint about my 2010 prius regarding braking failure over uneven road surfaces, case #229488. i took my car in to our local toyota dealer yesterday to have the issue taken care of (i also received a recall notice about the problem) i got my car back and today i experienced the same problem again while braking and going over a bump in the road. i want your agency to be aware that the toyota fix may not be working. i will be contacting the dealership and toyota about this safety issue. | |||
| 01/01/2010 | 2000 | ||
| When standing still , the brake pedal can be pushed to the floor, extremely spoogie feel . toyota says this is normal. when the brakes fail due to software error ( recall notice was received today finally ) i can also easily push the pedal to the floor. i do not like this feeling hopefully the recall will take care of this . visibilty is terrible due to the roof supports, are pedestrian accidents up, we can not see ,to return to the right lane after passing | |||
| 03/10/2010 | 1 | ||
| I recently got a recall on my 2010 prius but still having a problem with brakes. i went to check on the problems today (saturday, march 13, 2010), however, they said the lead mechanic was not there and could not help me with discussing problems. they wanted me to set up an appointment again during the weekdays (which will be a more problematic for me since i work full time and they don't offer rental service either). i have a great fear of driving this car again on the road where there could be lots of unexpected accidents. i generally don't understand that there was nobody who could take a look at my vehicle and give me some advice when there are lots of customers who are looking to get some help during the weekend. my brake still slips and i loose my control over my brakes when i go over pot holes or slowing down and making turns. again, the recall service did not give me any solutions. i discussed about this problem again with sales representative at toyota dealership and asked them possible options to return my car or getting a new one since it's been quite long days ever since i started complaining about the same problems, and they said no to everything. i am not sure how i can drive this unsecured car anymore. *tr | |||
| 01/01/2010 | 1000 | ||
| Tl*the contact owns a 2010 toyota prius. he stated when driving over uneven road surfaces or speed bumps in the road the vehicle would momentarily lose braking power. also, when depressing the brake pedal over any type of uneven road surface the vehicle would surge momentarily. the dealer was contacted and informed the contact that there was nothing wrong with the vehicle. the failure persisted and the dealer was contacted a second time where the contact was informed that they were aware of the issue, however did not have an explanation or a remedy for the failure. the failure persisted and the dealership was contacted a third time where the contact was advised there was an open recall on the vehicle nhtsa recall number: 10v039000:service brakes, air:antilock:control unit/module) and to bring the vehicle in to perform the recall service. after recall repairs were performed on the vehicle, the contact experienced the exact same failure. the failure mileage was approximately 1,000 and the current is 7600. | |||
| 03/11/2010 | 4500 | 1 | |
| 2010 prius brake ecu update did not solve problem. this is an update to a prior complaint, reference # 10300235. the brakes failed under the same circumstances and exhibited the same behavior as in the previous complaint. the dealer, huntington toyota, allegedly updated the ecu on 2/24/2010. the car loses braking ability briefly while slowing down (below 10 mph) and passing over a rough road surface or pothole. the sensation is one of the car surging forward. this has happened several time since the upgrade, the latest occurrence being 3/11/2010. *tr | |||
| 02/24/2010 | 25000 | 1 | |
| We have a 2006 toyota prius. ever since we bought it, we've been experiencing a problem which was pooh-poohed by the dealer, but now we thought it best to report it. this problem manifests itself when the brake is applied and we drive over an uneven surface or a very common irregularity in the pavement....like when driving out of our driveway, which involves a small elevation grade change between the driveway and the street. the braking action changes suddenly, and the car seems to loose braking momentarily. we experience this as a lurch. this is unexpected, and we've never had a car which did this in our 40 years of driving experience. *tr | |||
| 02/01/2010 | 50 | 1 | |
| I have a 2010 prius. my car was surging before braking on bumpy terrain. i brought the car in for repair to the dealer, as per the recall. the problem is still present. i still feel a surge while braking over bumps. i contacted the service department of toyota and was told there was nothing they could do to fix the problem and suggested i call toyota headquarters in california. i have attempted three times to report my complaint and on each occasion waited on the phone over a half hour with no answer. *tr | |||
| 03/10/2010 | 2010 | 1 | |
| Today i drove the car to see what would happen if the car was accelerating and i wanted to stop it other than putting on the brakes and hitting the park button. i was trying to reproduce the conditions which have resulted in numerous accidents and more than one life. while slightly accelerating i first tried to stop the car by pressing the power button. this did nothing. i then pressed the brake pedal on the left side which is your hand brake, hard until the brake light came on and the alarm sounded. in spite of this the car kept going! the only way i could stop the car was by stopping the car with the foot brake and then pressing the park button. *tr | |||
| 03/10/2010 | 1800 | 1 | |
| 2010 prius -already had the brake software fix -continues to accelerate slightly when it goes over potholes with the brake pedal depressed - usually low speed. *tr | |||
| 03/02/2010 | 11000 | 1 | |
| I had a braking issue, the car would not brake after hitting several potholes and going into an intersection. this is post recall. the recall was performed by toyota three weeks ago. this is the third incident for this vehicle with identical symptoms. after coasting for 10 feet or so, the vehicle did apply the brakes. *tr | |||
| 02/09/2010 | -600 | 1 | |
| My 2010 prius brakes failed momentarily twice while going over ruts in the road; i was able to keep control of the car and the brakes resumed working right afterwards. *tr | |||
| 03/09/2010 | 5100 | 1 | |
| I have filed a complaint here before about my 2010 toyota prius, whose brakes were supposedly fixed last week by toyota following the recall. however, just today the braking problem, when hitting bumps in the road, seems to not have been fixed at all. driving in the dc area, where there are a lot of potholes around, it is easy to test whether the brakes are fixed or not. while driving along the road today, nearing my house, i hit a pothole, and just as it had been happening before, the brakes seemed to completely let go and the car lurched forward for a split second until the brakes seemed to regain power and i was able to press down on them again. prior to that incident, and not 10 minutes earlier, i hit a small pothole while braking lightly and the brakes gave out just slightly. it's an unmistakable feeling, having experienced it numerous times before toyota finally decided to recall the 2010 prius. *tr | |||
| 03/06/2010 | 513 | 1 | |
| My 2010 prius had the brake software updated before i purchased it. i have owned the car for 12 days. during that time i have experienced a braking problem on 3 instances. in each case i was slowing down at a constant rate of deceleration when i hit a pothole or other rough surface. for a split second the rate of deceleration was interrupted. in other words it felt like i had let up on the brake which i did not do. on the third incident my wife was a passenger in the car and also noticed that for a split second it felt like i eased off the brake. i took my car to the toyota dealer to make sure the software had been updated. they confirmed that it had and make a note of my experience. i have read about the problem with the brakes on the hybrid ford fusion and the problem with my car may be the same. that is that the road bump prompts the computer to momentarily interrupt the regenerative braking and thus make it feel like the brakes failed. *tr | |||
| 03/05/2010 | 1700 | 3 | |
| 2010 prius 3 times i have the brakes grab and locked several times in a row when i have been applying very slow pressure. twice while backing out from parking space and once while going forward slowly in my driveway. they then began acting normally. i am concerned that this could happen in traffic causing an accident. i can't find a place at toyota to report. i was in an accident with 2002 toyota prius with unexplained acceleration in october 2009-already reported. *tr | |||
| 03/05/2010 | 3600 | 3 | |
| A safety recall procedure performed recently on the 2010 prius to fix the lurching brakes has not been working out. i had it done recently, and this is past the recall. in more than 3 occasions recently i almost hit the car in front of me while going over a manhole stopping over for a signal going as low as 25mph. the car jumped forward despite my normal braking to get it to stop, forcing me to brake hard coming to a forced stop. i am afraid someday i may not be so lucky !! wish, toyota put more thought into their solutions than rushing into the market with sub std. procedures & cars !! *tr | |||
| 03/06/2010 | 10 | 1 | |
| Complaint regarding: 2010 toyota prius. since i purchased the car in september of 2009, the brakes fail when i am braking and hit a bump, pothole, or uneven road surface. the brakes fail for a second or two, and sometimes the car lurches forward. the issue occurs approximately once a day, every day. on march 6, 2010, i had the recall software for the 2010 prius done in the service department at the mike calvert toyota dealership in houston, texas. on the way home, i experienced the brake failure again when i was braking and drove over a small pothole. i experienced the problem later that day when braking to stop at a red light, the pavement surface descended slightly beneath the car, the brakes lapsed, and the car lurched forward. i called the dealership. they referred to the materials supplied by toyota and told me to call toyota at 1-800-331-4331 to notify toyota that the recall fix did not work. upon calling this number and navigating the options on the automated system, i sat through a long recording stating that there was a recall of the 2010 prius. the option available to speak with an agent did not allow me to do so. *tr | |||
| 03/01/2010 | 16000 | 1 | |
| I visited my local dealership for repair of the brake recall of the 2010 prius in early february. i do not believe that this repair has fixed the problem. a few days after the fix, my car seemed to accelerate as i was braking and happened to be going over a pot hole. then again just a few days ago, i was braking to make a turn and hit a very rough patch of road. my car again noticeably seemed to accelerate even though i was braking. *tr | |||
| 03/04/2010 | 1100 | 1 | |
| I was driving my brand new, 3 weeks old, 2010 toyota prius on a rural road in clark county washington on thursday, march 4, 2010, when i attempted to slow down to make a very sharp left turn. i was applying my brakes when all of the sudden i realized i was not slowing down much and was not going to make the turn. i have maneuvered this turn hundreds of times and know that one must slow to almost a crawl to make the turn. i travel this area at least 1-2 times per week, so i was not unfamiliar with the turn. it felt like my car initially slowed some, but then slowing ceased and i ended up on embankment. the front of my car was damaged severely. i was not hurt but left with a very frightening experience to deal with. i am a excellent driver and have never had a wreck in the 31 years i have been driving. i believe my brakes initially engaged, but then due to the rural road surface, and pebbles left on the road from previous ice and snow, may have caused my brakes to not work as they should have. i attempted to contact toyota but they are closed due to it being the weekend. my car is at the auto body shop as i write this letter. my concern is that i was allowed to purchase a vehicle, that is on the recall list with such a dangerous defect such as the brakes not working properly. i have a teenage son who is just learning to drive and would it have been him, the accident may have been worse. please advise how you believe i should proceed. i am very concerned, upset, and do not feel safe in this car! and i certainly do not want to transport my children, other family members and friends in an unsafe vehicle that i just spent $33,000.00 on. i was told when i purchased the car that it would be safe, fine to drive, and may not even be on the recall list. it is on the list and it is not a safe vehicle as far as i am concerned. *tr | |||
| 02/27/2010 | 10500 | 1 | |
| Brakes temporarily disengage when braking. this happens several times a week. toyota says they installed the programming fix a few weeks ago but the problem continues to happen. i contacted the dealership and they told me there was nothing they could do about it, that i should contact toyota customer service. the failure occurs when i'm braking and hit a bump or uneven pavement. the brakes stop braking for just a moment. depending on my speed at the time, it can feel like a momentary pause or a sudden, heavy push from behind. it always feels like im sliding over the bump. *tr | |||
| 03/05/2010 | 7000 | 1 | |
| My 2010 toyota prius will sometimes brakes very hard under light brake pedal pressure when backing up. it happens every 2 to 3 days and can be when the car is hot and just driven, or cold and been parked for hours. when this occurs,it will continue to happen no matter how many times the brakes are applied in reverse, with the lightest of brake pressure, the brake apply very hard. then after the event, say a mile or two later, when backing up, the brake will act normally to the brake pedal pressure exerted. *tr | |||
| 01/05/2010 | 5607 | 1 | |
| My daughter was driving the 2010 toyota prius into a shopping center's parking lot. she noticed some black ice on the ground and step on the brake. the car didn't stop and slip on the ice and then hit the curb. the repair costs over $7300, and it's the toyota dealer did the repair work. back in late october and early november time frame, when i was driving the car over a speed bump with speed around 15m/h, the brake didn't work, the car just surge forward, eventually slow down after 1 second or so. *tr | |||
| 03/02/2010 | 8100 | 1 | |
| After the recall service on my 2010 toyota prius, the braking symptom still occurred on two occasions on march 2, 2010 and on march 4, 2010. in both cases there was a delay in braking when the brake was applied while on a moderately bumpy road surface. although difficult to measure the delay may have been briefer than previously, but it was still sufficient that it would have been a safety hazard if there was a vehicle or obstruction in front of me. *tr | |||
| 02/15/2010 | 4700 | 1 | |
| I took my 2010 toyota prius in for the recalls and it still has the same acceleration problem. *tr | |||
| 03/03/2010 | 8000 | 1 | |
| Had the recall work done on my 2010 prius last week, and the problem (surge when braking over pothole, rr tracks, etc) has now happened twice since then. i just spoke to the service department at parkway toyota in englewood cliffs, who told me that, while the recall fix would lessen the surge problem, it would never totally go away because of the braking system itself. shouldn't this have been explained to me, by toyota inc, or parkway? this is still a very disconcerting feeling. thought the recall was a total fix, not a partial one. *tr | |||
| 02/01/2010 | 1 | ||
| S10 appropriate handling re braking problems experience by an owner of a 2010 toyota prius. *kb the consumer stated he experienced inconsistent braking while driving on wet, bumpy roads which required extra vigilance as the feel of the brakes would often change. the consumer also stated the problem was also evident while in reverse. unfortunately, the vehicle did not stop while in reverse and hit another car. the consumer's vehicle as well as the other vehicle were damaged. the consumer stated his vehicle is currently at the dealership receiving the software upgrade to supposedly address the braking problem. *jb | |||
| 02/27/2010 | 11000 | 1 | |
| I have a 2010 toyota prius. when depressing the brake pedal with pressure, it goes all the way to the floor and the warning light that you are skidding illuminates. i have only tested this at traffic lights and not while moving. i had the prius in for an oil change in gastonia, nc and they said they fixed the problem but it still happens. *tr | |||
| 01/10/2010 | 4000 | 1 | |
| While braking on a short hill with uneven pavement surface vehicle brakes failed momentarily and then took hold as i pressed harder on the pedal. this occurred 3 times on the same hill. *tr | |||
| 02/24/2010 | 8500 | 1 | |
| 2010 prius brakes. after my first complaint and all the news on this problem i have been paying close attention and as i first thought the car does not just loose braking it actually accelerates. when braking over rough surfaces or potholes and your foot on the brake pedal you feel the car speed up for maybe one or two seconds. so far i have been able to stop ok. i quickly let off the brake pedal and reapply them and everything stops fine. i get no warning lights or alarms and never know when it might happen. stopping over the same surface the next day may not produce the same results, pretty random problem. *tr | |||
| 02/16/2010 | 8000 | 2 | |
| I have a 2010 toyota prius model v with the advanced technology option including pcs (pre-collision system) system. twice in the last 6 weeks the pcs system has triggered while i have been driving. at this time i did not have the radar controlled cruise control on or engaged. both times, the seatbelts rapidly retracted the car started braking rapidly and beeping aggressively. both times after what seemed like 3-5 seconds the car returned to normal driving. both times i was driving at night at speeds between 35 and 55 mph. both times due to the rapid seatbelt/shoulder belt retraction my left arm and chest was hurt. the pain lasts about a week, so there was a serious bruise which would have been ok if there was really a crash situation. both times there was no one in front of me. once there was someone behind me who almost crashed into me because of the rapid braking. *tr | |||
| 09/18/2009 | 1 | ||
| Prius, when brake was depressed it sped up when driving slow and hitting a pot hole this happened twice before toyota came out with the information about the brakes and once since the information has been in the news. i bought the car in august had the first incident in sept. one around christmas and one this month. didn't really know what was happening until now. *tr | |||
| 02/15/2010 | 8000 | ||
| Tl*the contact has a 2010 toyota prius. a crash occurred when the brakes failed to stop the vehicle. the contact stated that he applied pressure to the brake pedal to no avail. the vehicle was traveling 15 mph at the time of the failure. the weather conditions were a factor and the road was covered with snow and ice at the time. the current and failure mileage was 8,000. | |||
| 01/25/2010 | 500 | 1 | |
| 25 january 2010, corner of rufus allen and hwy. 50 south lake tahoe, california, 96150, at approximately 1630 local. road conditions mostly dry 65% / 35% thin patchy ice, smooth surface no potholes. applied brakes car lurched forward, momentary loss of brakes until more firm brake application was applied until braking system responded and car stopped short of intersection, no traffic violation, incident of damage. *tr | |||
| 02/05/2010 | 8544 | 2 | |
| Two failures. first while traveling at high speed from canada to nyc on december 26, the left side of my electronic display went out, specifically the speedometer and gas mileage component of the display blanked out. it took toyota about a week to figure out how to fix it. secondly, i brought my 2010 prius into my local dealer because of the braking acceleration issue. it had happened about 10 times since i bought the car on june 30, 2009. as the car was braking to a stop, there seemed to be an acceleration associated with the braking. when i brought it to star toyota of bayside, they had the technician drive the car for about 3 miles and stated that they found no trouble. *tr | |||
| 01/28/2010 | 3000 | 1 | |
| This is an update to an earlier complaint (#10304111). we had an accident with our 2010 toyota prius which we firmly believe was caused by brake failure. my wife was driving the car on a slippery road, it was lightly snowing, at about 10-15 mph and came to a stop sign. she applied the brakes and said nothing happened. as a car was at the stop sign she turned to avoid the car and hit a raised and sharp curb, which pierced the tire and bent the tie-rod. our car was towed to a body shop. after about 10 days, state farm inspected the car, but by this time the recall for the prius had been announced. the body shop then refused to fix the car and we had to take it to a toyota dealer. state farm has since decided not pursue this incident as they feel the snow caused the accident and that the temporary loss of brakes is not what the recall is about. from our reading of numerous articles (ny times) and the recall information itself, plus what happened, we are strongly stating that there was in fact a temporary or momentary loss of the brakes which directly caused this accident. from our reading of the recall and other complaints, slippery conditions are one of the factors which cause this problem. in our case, this problem was exacerbated as not only was there slippery conditions, but the car was on a hill as well. we have also experienced prior to this accident a skipping or momentary brake problem when going over bumpy roads. when asking about this we were always told it had to do with the abs system and that it was normal. well the recall proves this was not normal and now we've experienced the problem on slick roads as well -- which has now cost us money. *tr | |||
| 07/23/2009 | 1 | 07/01/2009 | |
| 2010 toyota prius software defect in the engine control system. consumer states while reversing before the start up operation is complete the brakes grab. *kb the consumer parked facing an upslope at the dealer to get his license plate installed. to leave, the consumer put his foot on the brake and pressed the power button. as the dashboard started to light up, he shifted into reverse, released the parking brake and the foot brake and started to ease down the ramp. as the consumer applied the foot brake, the brakes grabbed badly. the consumer released and re-applied them, and again they grabbed. the grabbing was severe enough that the vehicle was not safe to drive and the consumer just stopped. the consumer believed the behavior indicated a defect in the software that controlled the start-up sequence. the control computer should not allow the vehicle to be shifted into drive or reverse until the power-on operations have been fully completed. *jb | |||
| 02/01/2010 | 1 | 06/17/2009 | |
| 2010 toyota prius with brake problem. consumer states that a sudden loss of braking occurs after driving over small potholes, loose gravel, or down a slight hill. *kb the consumer stated it felt as though the vehicle was accelerating for 1-3 seconds. *jb | |||
| 01/10/2010 | 8300 | 1 | |
| I have had several problems with my 2010 toyota prius. i have found the brakes to be undependable in situations of uneven pavement or anything but perfect road conditions. after applying the brakes, the car continues to move forward as if the brakes were never applied. this continues for several seconds causing a dangerous delay in performance of the brakes. this has occurred several times this winter, and is unfortunately not predictable. one instance led to my car slamming into an snow and ice bank damaging the lower front part of the car. any other car i have driven would have stopped long before having contact with the bank, as the pavement was dry yet uneven. another issue i have had is unreliable acceleration, again a hesitation of several seconds after the accelerator pedal is pushed that is dangerous as well making performance unpredictable. both these situations leaves me uncertain of what kind of performance i can expect form both the brakes and accelerator at any given time. since i drive my daughter to school each day, i am nervous every time i get into the car and concerned about the safety of my daughter and the other students. i also regularly wake up in the middle of the night fearful about driving my prius to school and work the following day. so far i have done nothing to correct the situation as toyota dealerships are so swamped by other recall appointments that it is nearly impossible to get an appointment for anything but a recall. so far toyota has not contacted me about the brake recall solutions or recall process, so i am at a loss about where to turn. *tr | |||
| 02/22/2010 | 10550 | 1 | |
| Prius 2010 - when i brake going over pothole, there is a sudden acceleration. this happened twice since i brought the car in to the toyota dealership and they claimed they fixed the problem. it happened most recently today monday february 22, 2010. *tr | |||
| 10/01/2009 | 1000 | 1 | |
| I have 2010 prius. i am experiencing an energy surge from my back wheels when i step on my brakes while simultaneously going over a bumpy surface like rail road tracks, pot hole or rough ground. it occurs several times a week. the result is that my car suddenly speeds forward when i least want it to - i am braking. i have it thrust me into an intersection. i reported it to my service dept in nov 09. they told me they had never heard of this problem before and had no other complaints. with a front wheel drive i didn't understand why the power seemed to be coming from the back wheels. now i am assuming it is some kind of connection to the abs system. this happens most notably at lower speeds, rounding a corner. but i think it may also be happening on the highway, but the surge is harder to detect at higher speed. *tr | |||
| 01/10/2010 | 3000 | 1 | |
| During braking, my 2010 toyota prius would lunge forward as though the brakes did not work for a few seconds when hitting small bumps in the road. this happened twice. *tr | |||
| 01/27/2009 | 9620 | 1 | |
| I was driving my 2010 toyota prius (which i purchased in july of 2009) around 6:30 pm wednesday jan. 27th 2010 in an area with many traffic lights. the temperature was below freezing. i was going between 25 - 30 mph and i was following two other vehicles at a safe distance. the vehicle in front of me came to a sudden stop in response to the vehicle in from of him stopping suddenly for a red light at a traffic light. i hit my brakes and it felt as if there was a momentary pause before the brakes engaged. i hit the vehicle in front of me at less than 5 mph. the accident caused damage to the hood and front end of my vehicle. the vehicle in front of me was a suv so i caused only slight damage to his rear bumper (the front end of my car went under his bumper). i was folllowing at a safe distance and feel that the momentary pause from the time i hit my brake pedal to the brakes engaging caused me to bump into the vehicle in front of me. *tr | |||
| 02/15/2010 | 2200 | 4 | |
| 2010 prius purchased in august 2009. surge when applying brakes. occurred 4 times including 2/15/2010. has occurred in same place 3 times. each time there were potholes. when they were fixed, did not happen until they returned. complained to toyota dealer and was told this was normal when hydraulic and electronic brakes exchange. i suggested it was a dangerous normal. no damage or injury in any case. was always able to push harder on brake to stop car. stuns you when it happens because it is not normal. since first instance, have tried to keep distance when slowing and braking. *tr | |||
| 02/15/2010 | 5000 | 1 | |
| When braking if my car hits a bump my brakes disengage. *tr | |||
| 12/15/2009 | 2000 | 5 | |
| We have experienced engine surges/lack of braking with our 2010 toyota prius on 5 different occasions during aug 2009 - feb 2010: -1: hit pothole with right front tire and experienced surge. -2: hit exact same pothole on another day and same result (surge). -3: while driving on paved road hit some ice and experienced surge. -4: while approaching stop light, applied brakes, when front right side of car hit gravel, experienced surge. -5: while preparing for left hand turn on busy street, when car went over a large drainage grate in the turn lane, experienced surge. *tr | |||
| 10/20/2009 | 2500 | 1 | |
| Temporary loss of braking on 2010 toyota prius on uneven pavement. one occurrence on 10/20/2009. an earlier occurrence also occurred on uneven pavement - probably in september 2009, but i do not have a record of the date. the dealership performed the recall maintenance today (02/16/2010). please note that the car also exhibits extreme braking immediately after a cold start under wet conditions. this extreme braking is unlike any other cars previously owned over nearly 40 years. the extreme braking does subside after a short distance if the brakes are lightly applied while driving accelerator is depressed to maintain speed. *tr | |||
| 01/13/2010 | 1500 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated under normal conditions as she was driving at 45mph and coming to a stop with her feet on the brakes the vehicle lunged forward before stopping. the contact call the dealer and inform them of this and was told there is no problems with the vehicle and they never heard of this failure. there had been no prior maintenance performed on the vehicle prior to the failure. the failure mileage was 1,500. | |||
| 02/01/2010 | 2100 | 1 | |
| Brakes on my prius have momentarily failed on two occasions - both times happened after going over a pot hole/rough patch of road. *tr | |||
| 12/28/2009 | 200 | 1 | |
| We have a very long steep driveway. i apply some braking when descending and then more as i reach the bottom before i enter the street. there is a water diverter bump about ten feet before the end of the driveway. it is about an inch or so tall and about six inches wide, crossing the full width of the driveway. several times when i have rolled over the bump and i am applying more brakes, the brakes stop working for a second or so and then regain power. at first it felt like i was accelerating, until it happen a second time and i was more aware of what was going on. applying heavier braking before the bump, seems to stop this sensation. the last time the brakes did this was when pulling to the side of the road to let faster traffic by, onto a rough gravel driveway entrance. initially the brakes worked then for an instant they are gone, then back again. before the recall we called the dealer who said we were just not used to anti lock brakes! we have had anti lock brakes for many many years in many different vehicles. we know when the anti-lock brakes are doing their job. this is not the same type of pulsing upon heavy breaking. this happens in the 2010 prius when using normal braking pressure. *tr | |||
| 01/20/2009 | 1500 | 1 | |
| Have a 2010 toyota prius purchased in dec. '09. wife was approaching an intersection, braked, proceeded straight through the intersection, and as she crossed the crown of the street (for drainage), she experienced a momentary loss of braking. it has occurred one time so far. nothing has been done to correct failure. *tr | |||
| 08/19/2007 | 250 | 1 | |
| 2010 toyota prius sometimes has very grabby brakes when reversing and applying slight force on brake pedal. brake response is almost like a panic stop. this happens occasionally when starting car and putting in reverse. the remedy is to put car in park then put in reverse. *tr | |||
| 01/15/2010 | 5000 | 2 | |
| On two distinct occasions our 2010 prius brakes appeared to disengage with the car continuing forward without slowing. this occurred regardless of how hard the brake pedal was pushed. this is not related to the accelerator pedal. in each instance, our local toyota dealer was contacted and they insisted there was no problem. *tr | |||
| 01/02/2010 | 350 | 1 | |
| Brakes dropped out completely on several occasions while driving over a wet metal road plate, and while going over very bumpy terrain. *tr | |||
| 09/19/2009 | 1200 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that the brakes failed while driving approximately 25 mph on a normal road surface. there was minimal hesitation when the brake pedal was engaged. the failure mileage was 1,200 and the current mileage was 9,700. | |||
| 12/18/2009 | 280 | 1 | |
| On december 18, 2009 at 4:40 pm in the still-light late afternoon we struck a deer in the road with our 2010 toyota prius. | |||
| 01/28/2010 | 1 | ||
| I have a 2010 prius. we have had the problem with the brakes when we go over a bump. in addition, if i am driving in cruise control and have to put my foot on the brakes, there is a brief feeling of acceleration so instead i have gotten used to turning off the cruise control before putting my foot on the brakes thereby delaying braking for a brief moment. *tr | |||
| 02/09/2010 | 5432 | 3 | |
| Prius 2010. brake problem. i was applying the brakes and the car was slowing down then as i drove over a bump the brakes stopped working and the car gained speed until the brakes worked again. this occurred a few times before. toyota has recalled prius 2010 in japan for this problem. they need to do a recall here in the us. *tr | |||
| 08/19/2009 | 500 | 1 | |
| The brakes were a problem in my prius 2010 from beginning. it would accelerate on braking. happened 3 times. i had no floor mats at that time in my car. i took it for my 1st oil change to koons toyota, annapolis in oct last yr and complained about it. at that time, i had put mats. they blamed it on mats. they test drove and said its fine. told me to bring it back if problem persists. i kept driving and this last month's snow made it all apprant again. would not brake but accelerate on snow, happened 4 times on one trip. i am not driving it anymore on snow days. relying on honda odyessy- much more stable. its surprising, toyota prius 2010 was last to be recalled with so many complaints on board. *tr | |||
| 09/05/2009 | 500 | 5 | |
| Approximately five times while driving my 2010 toyota prius i have experienced problems with stopping when one of my tires either is on a manhole cover or on uneven road(one tire in a pothole). when this occurs i am usually going approximately 30 mph. i apply the brake slowly to start to slow down for a stop sign. my right front tire rolls over a manhole cover and while my foot is still on the brake my car accelerates, lunging forward. this lasts for 1-2 seconds when i have no control over the vehicle. after this 1-2 seconds my brakes stop the vehicle. the entire time my foot has been on the brake. i know that if a car was in front of me at the time, i would have rear-ended it. every time this has occurred my traction control light goes on. i have had my car to the dealer 3 times with the same complaint. they even took the car out for a drive with me and of course we could never recreate what has happened to me. i was never told that other people were experiencing the same problems. however, in talking to people at the dealership, they said it may be the traction control because it is supposed to make your tires spin slower if you loose traction. it seems as if it does the opposite and speeds the tire up. i asked if there was any way they could check my traction control system to make sure it was working properly, but was told there is no way to check it. i am not sure if anyone has thought about the traction control system. it seems like everyone is pointing fingers to the braking system. it might be worthwhile to check into the traction control as well. it seems like a short amount of time to not be in control. but for that 1-2 seconds my heart always drops because i have no control over my vehicle. *tr | |||
| 02/03/2010 | 6423 | 1 | |
| I was stopped at a traffic light. the street was uphill. my 2010 prius began to roll back, although i was stepping on the brake. this continued for several seconds, while i tried to press hard on the brakes (they were not responsive). luckily, there was no car behind me, otherwise, a crash would have ensued. road conditions were wet and somewhat slippery at that time. this was my first experience with this brake failure, which lasted for a few seconds. i have not had a chance to contact the dealer yet. *tr | |||
| 09/10/2009 | 1000 | 1 | |
| Toyota prius 2010 going downhill pushing the brakes to stop before red light in the uneven pavement the car suddenly loses all fours wheels brakes for a fraction of a second . when the wheel that passed the road bump the brakes come back again and stop the car. it happened three time in the last 4 months that i have the car. same car defect in the fuel system. after leaving in the garage for 5 consecutive days, the car did not started automatically as it should do. it made for several seconds a metal to metal noise before the engine finally started to funtioning as usual. seams like the engine starved of fuel. same car excessive vibration on the driver side door panel when the radio or music is on. it stops when i hold with my knee tha panel. *tr | |||
| 02/01/2010 | 3600 | 1 | |
| When slowing down, such as to make a turn or to change to reverse, when the brake was applied, there was some acceleration also occurring. this has happened 4-5 times in past few months, the last time was about 7 or ten days ago. the car did brake with no further problem and no harm occurred and there was no damage. *tr | |||
| 08/10/2009 | 1000 | 8 | |
| I have experienced two problems with my 2010 prius v that i purchased last summer. first, on approximately 6-8 occasions, my car has not stopped immediately when i applied the brakes. this occurred 3-4 times when i approached a stop sign on a road between my home and church. the surface of the road approaching the stop sign had been scraped and roughened to get ready for re-paving. as i approached and applied the brakes, my car surged forward for about a second, but i was able to stop. this happened 3-4 times in other locations, as well. it is an incredibly strange and helpless sensation. this problem was probably noted between late august 2009 and last occurred about three weeks ago. even though i was forced to put an exact date in the field below, i have no idea now when the exact dates were in which this braking issue occurred. when i brought my car to the dealer for its first oil change, i described what had happened but was told this had nothing to do with the other problems that had been identified in the media as to other cars. the person at the service desk just kind of ignored my comments and was not interested in hearing about the braking issue further. the second problem i have experienced is that when using the cruise control accelerate function the car just continued accelerating even though i was no longer turning the cruise function lever. this stopped when i applied my brakes. it did cause me to stop using the cruise control during that trip though. the cruise control issue probably occurred last august in i-5. *tr | |||
| 08/06/2009 | 30 | 1 | |
| I bought a 2010 toyota prius in august 2009. in addition to the braking problem i describe below, i also have an acceleration problem. i questioned my toyota dealership about the fact that when i am braking over metal (manhole cover, repair lids, etc.) the car is quickly pushed forward about 3 to 4 feet. several other new owners said they had the same experience. the dealer said that when they checked with toyota, they were told that the hybrid battery motor used a magnet and the braking system to recharge it. and that the push forward was from the repelling action of the magnet. my sisters own a 2008 camry hybrid and 2008 prius, and they both have experienced this propelling motion when on metal surfaces also. the problem with the dealers advice to not brake on metal surfaces doesn't help in snow or water situations. will this problem be fixed by the abs brakes software change?? i also had several instances where the brake pedal would suddenly go to the floor and produce very little braking power. the problem was intermittent and the dealer said they found nothing wrong. since then i have had several other instances where the brakes didn't work well and i almost hit the car in front of me. so i now drive with a lot of distance between me and other cars because i don't know when it will happen. i should say that i've had other cars with abs brakes and this car does not feel like i have them. on slippery surfaces (snow, water) the brakes do not pump themselves like other abs cars that i have driven. i have dropped it into low gear to help brake. these things have happened many times since i bought the car. i have been very careful and not had an accident yet. *tr | |||
| 02/09/2010 | 1 | ||
| (owner of prius), i bought prius 2010 model in aug'2009 from koons arlington toyota in arlington, va, us. since then i do not have any issues up until today. when i cam out today to drive on 66 highway and also to get on to west ox road, i had recall complaints what was listed occurred to me. 1) above 60 miles speed when i was traveling and time to apply the brakes, i couldn't stop the car immediately, it took 2-3 min. to get to stop after traveling some distance though i didn't see how far i had to travel too. 2) other incident happen on same travel time on west ox road,i was approaching a traffic light near fox mill at speed around 12 - 15 miles / hour - i couldn't stop the car, it was accelerating only inspite me applying the brakes. *tr | |||
| 01/05/2010 | 3000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 5 mph into a parking space with the brake pedal engaged, the vehicle failed to slow down and crashed into a sidewalk. the front fender was damaged; however, the contact was able to drive the vehicle to his residence. the contact also complained to the dealer regarding the brake failure and was told that nothing was wrong with the brakes. the insurance company advised the contact to call the toyota manufacturer and file a claim for which she is currently waiting for a response. the failure mileage was 3,000. | |||
| 12/17/2009 | 100 | 1 | |
| My 2010 toyota prius was delivered on december 15. i have observed that the brake pedal drops abruptly at times while slowing. i am not sure yet if it is after hitting a bump or just the transition of speeds. it is very sudden. it might result in loss of control if one is not aware of this. *cn | |||
| 01/22/2010 | 10000 | 1 | |
| Driving on slippery roads, but not unpassable, my 2010 prius braking system failed to provide any assistance in prevention of slipping into a parked vehicle in my lane, resulting in 2900+ dollars of damage, plus, since the body shop was unable to properly inspect the damage without taking the car apart. i was found at fault for this accident, for which i fear my insurance rates will rise. i am a safe driver. never having had an accident before. i new the car was not responding to the brake pedal as it should, and that was before this recall ever came to light. the accident happened on jan. 22, 2010. *cn | |||
| 01/10/2010 | 6537 | 1 | |
| The brakes on our 2010 prius have repeatedly had problems. most have occured with my wife driving the vehicle. she had told me several months ago about the car feeling like it was sliding or the brakes not being very effective for a short time. i passed this off as the the car being different than other cars since it was a hybrid. then about 3 weeks ago i had it happen to me. while turning and going over a small hump in a driveway about 15 mph, the brakes just seemed to release for about a half second and i almost ran into an iron gate. i cannot describe the other events that my wife has had in detail because occurred over the last several months and she does not remember the specific details besides that they happened over uneven pavement while applying the brakes. *cn | |||
| 06/30/2009 | 1 | ||
| Shortly after date of purchase of my prius i have reported to toyota service department on numerous occasions that the brake system feels faulty: the brakes often lock or do not function at all when the car is at a slight incline either going up or down a road. there is also a constant high pitched noise emanating from the wheels. toyota has claimed that it is a characteristic feature of the car and have been unable to locate the issue. toyota has reviewed this issue at a minimum or 5 or 6 times and have not done any repairs to my car at all. the car was purchased and is always taken to keyes toyota in van nuys, ca. i am submitting a date below with this form as requested, but the issue has been ongoing for many months since june 2009. i specifically expressed my concern to toyota because i often have my infant and toddler niece and nephew in the car with me. toyota claimed there is no reason for concern and that they could find nothing wrong with the car. *cn | |||
| 02/04/2010 | 2500 | 1 | |
| Temporary loss of control of my vehicle as i was going over a speed bump. i felt like my brakes had failed. *cn | |||
| 02/02/2010 | 3700 | 1 | |
| While driving our 2010 toyota prius on a snowy and bumpy road, my wife pressed on the brake pedal and it took a second or two for the brakes to work. this happened several times. she thought it was due to lack of traction in the snow, but based on all of the other braking complaints about the prius, she felt it was not due to snow, but rather a problem with the braking system *cn | |||
| 01/10/2010 | 4000 | 1 | |
| Toyota prius 2010 - it has happened to me, multiple times this winter, during icy roads that when i try to brake the car accelerates as if someone hit the car from behind. then, the car eventually stops. i have had the car for 6 months and i live in the midwest and it has only happened this winter when roads are icy or slushy. *cn | |||
| 02/08/2010 | 4500 | 1 | |
| My 2010 toyota prius is having braking problems when i apply the brakes while/after hitting a bump or pothole. for example, when i approach a stop sign and apply the brakes while hitting a bump, the car lurches forward briefly (1-2 seconds) before the brakes kick in. the brakes work fine when no bump is encountered during braking. i can repeat this failure consistently with a bump in my neighborhood. no fix yet. *cn | |||
| 02/06/2010 | 1360 | 1 | |
| While driving eastbound on moorpark street, approaching dixie canyon avenue, i braked in preparation to make a right hand turn, and the brakes released when i hit a small pot hole. the brakes re-engaged approximately 1-2 seconds later. *cn | |||
| 01/30/2010 | 2000 | 1 | |
| 1. event: normal city driving (i.e., car in drive and cruise control off) 2. the failure: press on brake and feel softness instead of firmness; must press much harder on brake than typically required to bring car to stop in same distance. failure occurs sporadically during course of regular driving. have not associated failure with traveling over rough surfaces. 3. contacted toyota dealer and was told that we would receive letter in mail instructing us on what to do, because no correction has been developed yet for this problem in existing cars. *cn | |||
| 02/06/2010 | 4200 | 1 | |
| I suffered a temporary loss of braking while approaching a toll booth on the new jersey garden state parkway. the loss occured immediately after hitting a large bump as i was slowing to pay the toll. soon after braking returned and i was able to continue slowing and did not strike anything. *cn | |||
| 02/04/2010 | 4000 | 1 | |
| I have a 2010 prius iii that was purchased on dec 23, 2009. i experienced a momentary loss (approx 0.5-1 sec) of braking power when i was driving over a road with some bumps. essentially, the brakes completely cut out, but came back while i was holding back the brake pedal. my mileage at the time was approx 4000 miles. so far, this has not repeated. another issue is inconsistent braking. holding the brake pedal down with constant force (my judgment) will cause the car to slow abruptly while at low speeds(<10 mph). this is a very different feeling from the regenerative braking portion (feels like little/no braking at all) and braking at higher speeds (>10 mph). *cn | |||
| 01/20/2010 | 2800 | 1 | |
| 2010 toyota prius loses brake response completely after hitting any medium sized or larger bump. happens at least twice a week and has resulted in sliding and hitting a curb once. car is unsafe to drive. took car to toyota dealer and was told there is no fix for this issue at this time i was given the toyota customer experience phone number and when i called i was greeted with a recorded voice saying we cannot take your call at this time if you need to speak to a representative call back later and then hung up on. *cn | |||
| 02/07/2010 | 10025 | ||
| Driving a 2010 prius coming to a stoplight. went over a raised portion of road resulting in a very noticeable bump. car seemed to lurch forward and braking didn't seem to work for a short time. thought i was going to go through the red light into cross traffic but brakes took hold and i was able to stop. | |||
| 11/14/2009 | 1000 | ||
| My wife's 2010 prius occasionally surges forward when the brakes are applied. this typically occurs when driving down hill and over bumps. it happens about 1 time per 14 days. the surge is only for a split second. control of the car has not been lost yet. nothing has been done to fix the problem | |||
| 02/07/2010 | 3100 | ||
| Brakes on 2010 toyota prius fail when the vehicle encounters a rough road surface when braking.(four incidents) i suspect many of these complaints are going unreported because dealer service departments are telling customers the vehicles are braking as designed. | |||
| 01/06/2010 | 2300 | ||
| I have on at least 4 occasions experienced the braking issue (that is being investigated) on my 2010 prius. it happens when i go over railroad tracks, or hit a pothole. please add my complaint to the others that report similar problems. | |||
| 10/09/2009 | |||
| The brakes on my 2010 toyota prius at times do not engage immediately. it may be necessary at those times to depress the brake pedal by 1/3rd before braking begins. there is a similar delay when braking is used to turn off cruise control. neither of these have caused an accident, but in both cases there is some risk. | |||
| 01/29/2010 | 180 | ||
| I have experience a problem with my 2010 prius, while turning right on to another street traveling around 20 mph, i press on the brakes to down slightly when suddenly the car accelerated very fast, i pressed on brake harder and it stop this acceleration. later i had 2 problems at the same intersection, # 1: i turned right into the street to my right and i noticed my brakes hesitated for about 1 or 2 seconds, i then continued without a problem. # 2: i turned right at the same intersection with the brakes on to slow me down, when the car seemed to accelerate slightly without my foot on the gas pedal. there are many small pot holes at the intersection . | |||
| 02/01/2010 | 500 | ||
| My 2010 toyota prius brakes fail briefly (1-2 seconds) when braking at low speeds and driving over a pothole, speed bump, or manhole, especially on wet roads. brakes resume appropriately when brake pedal is pressed again or pressed in harder. i first noticed this during the first month i owned the car (august 2009). this happens to me about once every two weeks. nothing so far has been done to correct the problem. | |||
| 02/05/2010 | 7500 | 1 | |
| 2010 toyota prius braking problem. going down steep long hill, with rough surface, we encounter this problem 1 or 2 times a week, repeatedly. it feels like we are flying down the hill briefly, out of control, while in fact, we are going approximately 15 miles per hour and are applying the brake in the same manner as always. this is very scary, as the hill has a huge deep ravine on one side, and a high cliff on the other side, and a cliff off a beach into the salt water at the bottom of the hill. the road is very narrow, with 2 vehicles going up and down only able to pass at selected positions, otherwise, one lane traffic. please demand that toyota recall this vehicle, and replace the software that controls the braking system. i understand from the news that they have this fix in place on new cars since last month. please recall this vehicle asap! my vehicle number is [xxx] production date 6/09. thank you. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tr | |||
| 01/02/2010 | 5100 | ||
| I was driving down a hill that has a slightly uneven surface and was a bit icy and when applying the brake in my prius, my car sped up slightly when it hit the uneven surface and seemingly jumped faster before the brakes kicked in and brought my car to a stop. this has happened twice on different roads, both of the road surfaces being slightly uneven. nothing has been done to correct this problem, when i called toyota they told me that there was nothing they could do. | |||
| 07/15/2009 | 2500 | 1 | |
| Dear sir, i would like to bring a problem to your attention. i purchased a 2010 toyota prius, vin# [xxx] , in june 2009. the problem is not the brake problem being described in the predicted recall. my problem is as follows: when the vehicle is driven and then parked (shut down ) and started again, the brakes will lock up at the slightest pressure on the brake pedal. when starting out of a parking spot, either forward or backward, the slightest touch of the brake pedal will lock the brakes and stand the car on it's nose. i have found that if the problem occurs, i can either stop the vehicle ( shut off with the start button ) or hold down hard on the pedal for 10 to 20 seconds, the brakes perform normally. i returned the vehicle to the dealer in august 2009 for an oil change and reported the problem, but the service department dismissed the complaint as 'could not duplicate the complaint' even though i explained that it did not occur every time. i can not connect the problem with any particular situation. it can occur with normal driving or in eco mode. i feel it is an annoyance more than anything else, but could pose a problem in certain circumstances. i will gladly answer any questions you may have regarding this problem. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tr | |||
| 06/18/2009 | 50 | ||
| Purchased 2010 prius v apporx. mid-june. drving in first wk of ownership, observed break problem. vehcile had approx. 50 miles on. drining 25-30 mph on straight, smooth, blacktop road on a sunny, nice day. a car backed out of a 45 deg parking spot without warning, i had to slamp on breaks at the same time the gas/electric motors were switching. the break pedal lost feeling that it had pressure until i pushed the break pedal another 2 inches more to feel pressure and that the breaks were grabbing. i did not report this in june, due to i thought i was imagining things due to the emergency stop took my attention to some degree. i was a service manager for chrysler years ago, so i am very familiar with vehcile mechanical systems and i have purchsed approximately 25 new vehciles in my lifetime. | |||
| 12/20/2009 | 3000 | ||
| Regarding our 2010 toyota prius purchased in august of 2009, we have experienced braking issues in two instances: 1) when braking for a stop sign and hit a bump in the road the car surges forward 2) when braking on icy surface the brakes seem to lock up causing control problems. in speaking with the dealer they indicated that they had know knowledge of a fix to the issue and after speaking with toyota they gave us a rental that was supposed to have come out of production after the software was fixed to correct the brake problems. while driving the rental we experienced the same issue while braking over a bump in the road. | |||
| 01/10/2010 | 4000 | 1 | |
| I have a 2010 prius and have experienced surges when coming to a stop on snow or ice. i have almost hit the car in front of me several times. this is dangerous and should be fixed *tw | |||
| 01/21/2010 | 2700 | 1 | |
| Experienced lack of braking when my 2010 prius was going over bumpy terrain. i was pressing on the brake as i was approaching an intersection, and no braking was occurring until the car reached smooth ground again. instead it felt like i was skidding, and the brake pedal just vibrated back at me. i can confirm that the problem being reported in the news media in japan, is in fact, a real problem. when i heard about it on the news, i realized, hey, i experienced that. i would encourage a recall. it is a legitimate problem that does indeed sometimes occur in the situation i described. it is scary. *tw | |||
| 02/04/2010 | 4420 | 1 | |
| Toyota prius 2010. my car has a braking problem , the rear wheels seem like they are not holding. if you hit a bump and the wheels are in the air =then grabs the ground . i thought that i was hitting pot holes causing this but there was none to see . *tw | |||
| 01/15/2010 | 1000 | 5 | |
| Regarding my 2010 toyota prius i purchased in november 2009: sometimes on icy, snowy streets there has been a delay after i press the brake pedal before the anti-lock brakes activate. the car has just skidded at first. this delay in braking has also occurred when i have applied the brakes on bumpy surfaces. total incidents have been five--three on ice, two on bumpy surfaces. *tw *tr | |||
| 01/14/2010 | 4500 | 5 | |
| Brakes seem to fail when braking over a depression in the road or when braking on icy patches of the road. this has happened at least five times in december, 2009 and january/february 2010. prius *tw | |||
| 01/16/2010 | 1 | ||
| Loss of braking power (weak braking) when rolling over bumps, pot holes and even cracks in the pavement. *tw | |||
| 09/01/2009 | 1000 | 1 | |
| 1.i purchased this 2010 prius in august 2010. i have experienced unanticipated acceleration two times since the last (initial) service. once with my husband driving on route 17 and the other time while i was driving on a local road. 2.as i stated in my service paperwork when the car was first serviced, there is a problem with the brakes. they do not stop on uneven road surfaces, such as pot holes, bumps, etc. your service department said that this is caused by the abs and it is ?normal?. obviously there is still a problem. please advise what will be done to correct this issue. 3.when start the engine first thing in the morning (or when the car has not been driven for a while) often, but not always, it makes a grinding noise when starting *tw | |||
| 01/15/2010 | 2100 | 1 | |
| I have experienced the momentary loss of brakes on my 2010 prius numerous times under various driving conditions. all of the instances occurred at fairly low speeds and i considered it more of a nuisance or nature of the beast than anything else. once was on a level, dry, residential road approaching a stop sign. another has happened a number of times at the same spot (a right hand turn onto a residential street - my route home from work ). and a couple of times on snow covered roads ( i actually thought those were very short skids before the abs engaged) *tw | |||
| 01/20/2010 | 5500 | 1 | |
| Brakes either slip or car leaps forward when brakes are engaged and car goes over rough or slippery pavement or a pothole *tw | |||
| 02/01/2010 | 1 | ||
| I've been hearing in the news about the potential of a braking issue with the 2010 toyota prius. just wanted to let you know that i definitely noticed this issue in my new prius. approximately once a month, when i'm braking over an uneven or slippery surface, especially if it is only one side of the car going over the slippery surface, while i'm braking, there is a moment lasting less than a second where it feels like the brakes disengage. (causes your heart to skip a beat when it happens.) i also noticed a separate quirk the other day that i want to pass on to you. i'm not sure if this was done deliberately by toyota or whether this is a defect, however, i believe my speedometer is calibrated so that it reads a speed that is 2 mph faster than my actual speed. i noticed this when i went on a trip and used my wife's tom tom, which uses its gps signal to measure the speed of the car. the tom tom is usually spot on in my wife's acura. in the prius, it was indicating that my true speed was 2 mph less than what my speedometer indicated. i'm wondering if this wasn't somehow intentionally done by toyota to get better perceived gas mileage by the driver. having the car get over the 50 mpg threshold is a big marketing advantage for them. getting over this threshold would be easier if the actual speed of the car was less than the perceived speed. *tw | |||
| 01/15/2010 | 5200 | 2 | |
| We have twice experienced a brake cut-out, where we are coming to a stop sign with foot on brake and hit a bump/pot hole and the car lurches ahead as though we have temporarily removed our foot from the brake even though we haven't. *tw | |||
| 12/15/2009 | 6500 | 1 | |
| Experienced loss of braking while decelerating on a down hill slope with ramp from i-55 north to bayless in st. louis when hitting a pot hole in the 2010 prius hybrid. the pothole has since been fixed and have not experienced any problems since. *tw *tr | |||
| 01/25/2010 | 1000 | 1 | |
| All three drivers of our 2010 prius have repeatedly experienced the following braking problem: if you drive over a bump, pot hole or manhole cover while braking normally at speeds under 25 mph, the brakes feel as if they instantaneously disengage for about 1 second. normal braking soon returns, but there is a dangerous increase in breaking distance when you need it most. we have identified certain road locations in our area where this problem is repeatable even under dry road conditions. this problem has resulted in a few close calls, but so far, no accidents. however, i am absolutely convinced that a defect such as this will result in some drivers having accidents. *tw *tr | |||
| 12/22/2009 | 1300 | 1 | |
| I was driving from l.a. to roseville ca on i-5 north in my new 2010 toyota prius. because i was driving at night it wasn't very busy and i had the cruise control on at 65 mph. in the distance i saw some cars pushing their brake pedals so i wanted to brake as well a little to 1) deactivate the cruise control, 2) reduce speed. pushing it very gently, absolutely nothing happened. this scared me and i pushed harder, then my 2010 prius started braking way more aggressively. i noticed along the way and also after this that this behavior is consequent. while driving on the highway, i cannot use the brake pedal to release the cruise control and diminish speed, because nothing happens when you push the brake pedal gently, it takes a little time before it reacts. i find this disturbing, because in my 2000 ford crown victory, even the very slightest touch on the brake pedal already causes the cruise control to turn off and very lightly diminish speed. in the prius in order to achieve this i have to press the brake pedal hard, then after some delay it starts braking fast. in the beginning i thought this is normal for the prius, but i find it quite disturbing and sometimes scaring. hence, i must take way more distance to cars ahead of my on the highway, because i cannot brake as fast and stop as soon as the other cars can. honestly, it is very scary and it makes my feel unsafe while on the highway with the prius. i am driving my crown victoria when i am driving on the highway now a days. *tw *tr | |||
| 02/05/2010 | 8580 | 1 | |
| There was a delay from the time i applied the brakes in my 2010 prius when driving on slippery, snow covered roads until i could feel them start to slow the car. the abs system also seemed to act more slowly. i also drove my 1998 ford explorer on the same roads soon after driving the prius. the explorer abs system reacted more quickly and definitely stopped more quickly than the prius. *cn | |||
| 12/15/2009 | 7000 | 1 | |
| Coming out of a parking lot downhill ... hit a bump ... brakes failed and almost sideswiped by oncoming traffic. hit the brakes a second time and car stopped just in time to avoid a collision. this is the only time we have had this happen ... brakes have worked ok rest of time. nothing done yet to correct the bump defect at slow speeds. *cn | |||
| 12/10/2009 | 3000 | 1 | |
| 2010 toyota prius hybrid brake problem: purchased new in october, 2009, my prius has experienced momentary brake failure while stopping under certain conditions. specifically, when i hit a bump while braking sometimes it feels like the brakes momentarily release and the car launches forward. this has happened 6 to 10 times since i purchsed the car. i alerted the dealer (bernardi toyota in framingahm, ma) about 3 - 4 weeks ago, and they were not aware of the problem. no solution has been offered yet. *cn | |||
| 01/16/2010 | 500 | 1 | |
| I purchased a 2010 prius (which was in stock) on january 8. after hearing about the brake delay problem, i realized that i had had a similar problem. i was traveling at medium speed when i felt the car dip, then shudder. i felt that i had lost control of the car. it felt like it was sliding (as though on ice). now i realize that i must have put on my brakes, but the car continued to proceed. i had not noticed any problem in the road, and no reason to explain the shuddering. it was all very brief. i have an appointment to see the maintenance people at toyota grapevine, texas, on monday, february 9. *cn | |||
| 08/01/2009 | 200 | 1 | |
| This is not the same 2010 prius brake problem being reported regarding transient brake failure. while waiting in gear at a traffic signal with foot on the brake pedal, the pedal slowly sinks all the way to the mechanical stop. however, the car does remain stopped even when the accelerator pedal is briefly tapped. the behavior is repeatable and consistent. personally verified that there are no external hydraulic leaks. observed the fluid surface in the brake fluid reservoir while an assistant sank the brake pedal. the surface remained undisturbed, indicating that the master hydraulic piston is not leaky. took it to the dealer. the sales & service managers observed but reluctantly admitted the behavior, tested it on their computer and declared it acceptable. i tested a second 2010 prius on their lot and the behavior was identical. consequences: having dealt with dealers before, we are unwilling to accept the dealer's reassurance for this seemingly unsafe behavior, and are now compelled to set the parking brake at every waiting stop. *cn | |||
| 01/28/2010 | 1 | ||
| I have experienced braking problems with my 2010 prius during the following circumstances, which i have mentioned to my husband and my coworkers when it happened. 1: on my way to work there is a stop sign where i need to make a left turn. just before the stop sign the road is uneven. when i brake there, i feel a jerk and jump before the car stops. 2: i was on my way to work, on 01/28/2010 when it was snowing lightly, the vehicle speed might have been at the most 5-8 miles/hour. i saw the light turning yellow from 50 feet ahead and i started applying the brake. the road had little slope but the vehicle was not only skidding, but also not stopping and i was praying that it will stop before it goes into the cross road. i am the primary driver for this vehicle and i love this car. but i have experienced from the very beginning that the vehicle doesn't stop quickly when i brake, but always thought that was part of hybrid technology and may be to force the driver maintain some space from the vehicle in the front. *cn | |||
| 02/05/2010 | 3800 | 1 | |
| Temporary brake failure when braking over potholes or braking in a turn *cn | |||
| 11/18/2009 | 1000 | 1 | |
| I experience a loss of brakes at least two or three times a day with my 2010 prius. this happens everytime i press on the brake and hit a bump in the road. i live in new orleans and our roads are notoriously bumpy so i loose my brakes often. this has been happening since i purchased the vehicle back in november. the dealer refused to do anthing about it, saying that it was acting how it was designed. i have never owned a vehicle that looses it brakes when the car hits a bump. *cn | |||
| 01/20/2010 | 2000 | 10 | |
| I have a 2010 toyota prius; purchased new on 3 jan., 2010. i now have about 4400 miles. recently in the news i've heard loss of braking complaints. my complaint is the opposite. sometimes when traveling very slowly backwards or very rarely slowly forward and i press lightly on the brakes they grab as tho i pressed hard for an emergency stop. this has happened about 10 times. this has yet to occur when traveling at speeds above about 5 mph. this occurs usually when backing and usually when the car is cold. if it happens it usually happens multiple times in just one attempt to back out of a parking spot. *cn | |||
| 08/30/2009 | 2000 | 1 | |
| I have a 2010 toyota prius and have experienced the braking problem. when braking with the foot off of the gas pedal, the car will lunge forward with acceleration. it will stop when i hit the brakes harder. this is happening on dry pavement. this has happened on 3 seperate occassions. *cn | |||
| 02/06/2010 | 1 | ||
| I stepped on break padel on my 2010 toyota prius on a bumppy uneven road but the car didn't stop properly and slipped a few feet instead. *cn | |||
| 02/05/2010 | 220 | 1 | |
| Momentary brake loss. 2010 prius, mfg. date 12/09. purchase date 2/1/10. low speed slowing down with light braking for stop light. happened over a man hole cover (i think). when it felt like the brakes quite momentarly. *cn | |||
| 02/05/2010 | 1210 | 1 | |
| While driving on 2/5/10 in snowy conditions at about 15 mph, i slid through a stop light in my 2010 prius. i was driving cautiously, applied my brakes early, knowing the light might change. it changed to yellow and i had no brakes and slid into the intersection as the light turned red. i have had anti-lock brakes in my last two cars and have had my abs engage previously on my 2010 prius. during this event, no braking of any sort took place even though i had the brake pedal depressed. fortunately, i was not hit by other cars in the intersection. i have not had the problem examined yet, but will be taking my prius to the dealer. *cn | |||
| 08/25/2009 | 10 | 2 | |
| I own a 2010 prius. the day after the purchase, the brakes would grab when in reverse as brakes were applied. i returned to the dealer who said they could find nothing wrong and was perhars due to a little rust on the rotors and and to return in problem recurred. the grabbing and jerking continued while braking in reverse at low speed and i again returned to dealer. this time they said it could be due to interaction between the mechanical brake and the the regenerative brake but had no improvements to offer. the problem continus to date. it does not happen when going forward . however, i thought you might be interested as it may indicate a general software error ifor controlling the interaction between braking modes. *cn | |||
| 11/30/2009 | 50 | 1 | |
| Brakes are unresponsive at times, it jerks during slow and steady application of brakes on rough or slick road surfaces. *cn | |||
| 01/15/2010 | 7800 | 1 | |
| Toyota prius 2010 - breaks failed to stop car on 3 separate occasions during the past month. each occurrence was at an intersection (roads each time were plowed for snow, but still a bit slick). the car eventually stopped due to the vehicle slowing down, but still not breaking. one occurrence was at an intersection where the car did not break at a red light and i quickly turned the wheel to the right to proceed onto a side road. i have called the service department at the toyota dealership (where the car was purchased last fall), and have not received a response. *cn | |||
| 09/01/2009 | 1 | ||
| Have experienced the 2010 prius brake condition several times *cn | |||
| 12/15/2009 | 3500 | 1 | |
| My toyota prius has the problem that has been reported in the news. the vehicle has brake/stability control issues as soon as one of the wheels leave the suface of the road. the anti-lock system seems to be too aggressive and thereby is dangerous. there is nothing that the driver can do to avoid this. it is a traction-control/brake issue. also, rear vision is about as bad as looking out the rear of the oscar mayer weiner mobile. the side mirrors need more rear vision. *cn | |||
| 07/25/2009 | 300 | 4 | |
| My 2010 toyota prius has been having braking issues. it has happened 4 times that when i am stopping and hit a bump the brakes seem to not engage. *cn | |||
| 10/02/2009 | 75 | 1 | |
| I bought my 2010 toyota prius in the summer of 2009 and on the 2nd day of ownership when i was braking to make a left turn on to my street where i live the car increased in speed up when i was making my turn while braking over a bumpy surface in the road.yhis condition only happens when the roadway has imperfections and is rough.i had told the dealer about this conditon and they said it was the sensors and it was a normal conditon which i think is dangerous because this happend when i was behind another car and came close to hitting the car in front of me. *cn | |||
| 01/02/2010 | 4000 | 1 | |
| Toyota prius antilock brakes stop braking after a disturbance such as a slippery spot, or pothole. this occurs quite frequently and is likely to cause an accident. *cn | |||
| 01/15/2010 | 5000 | 3 | |
| I have noticed on a few occasions that my 2010 prius lurches forward for a brief second in the middle of braking at a stop sign. i have noticed this happen occasionally, but was more frequent in the last month, about 3 times. i made a written complaint to toyota service a week ago, but was told it was not unusual. however, i just read in the news about the issue with braking in this model car and am alarmed and thought i should make a note of my observation to nhtsa. i will call toyota service again to have them take a second look at my car. thanks *tr | |||
| 12/10/2009 | 1000 | 3 | |
| Bought a 2010 prius in october 2009. it currently has 3500 miles on it. at least three times the car felt as if it slipped on ice when applying the brakes (weather conditions were perfect - no ice, snow or rain). their is difficulty in clearing fog from the windows and one time i had trouble setting the cruise control. *tr | |||
| 08/01/2009 | 1 | ||
| I have experienced very strong grabbing sensations from the brakes a few times when backing up. the car reacts as though you are slamming the brakes even though only slight pressure is applied. *tr | |||
| 02/05/2010 | 1 | 09/22/2009 | |
| Friday; 02/05/2010 i own a 2010 toyota prius i have been experiencing when i apply my brakes for months when driving over a uneven surface or a large holes. my vehicle does not respond when i try to slow down or apply brakes. its like i lost control. i tried to explain this condition to the selling dealer but he did not have a answer up to now. my 2010 toyota was purchased 09/22/2009. *tr | |||
| 12/28/2009 | 8000 | 1 | |
| Driving in slippery conditions and we attempted to stop on a manhole cover and the brakes did not catch. we almost had a crash, but managed to stop just in time. this was not the first time that this had occurred. we had a similar incident when we hit a large pothole. *tr | |||
| 01/05/2010 | 12000 | 1 | |
| I own a 2010 toyota prius and noticed problems with braking while crossing the train tracks and hitting potholes. it seemed that the brakes does not work because the vehicle accelerates. you have this feeling of panic that the vehicle won't stop and you will hit the bumper of the vehicle in front of you. *tr | |||
| 02/02/2010 | 3650 | 1 | |
| I was driving my 2010 toyota prius over a rough spot in the road. when i tried to slow the car by applying my brakes, they did not respond. in fact, instead of slowing down, my car accelerated abruptly, shooting ahead several feet before i was able to regain control of the vehicle. this episode lasted only a few seconds, and then the breaking function returned. since i was traveling around twenty miles per hour at the time and no one was directly in front of me, the episode did not result in any accident or injury. while i have had only one occurrence of this brake failure/acceleration since owning my car, purchased at the end of september, 2009, the fact that this car has a history of performing in this uncontrolled way has me deeply concerned about driving it. *tr | |||
| 10/10/2009 | 200 | 1 | |
| 2010 toyota prius. from the first week i owned the car here is a description of the problem. frequently, when first starting the car in the driveway, i put the car in drive, then as it began to move forward - the slightest touch on the brake caused the wheels to lock-up, badly lurching myself and the passenger. after driving for a short while the problem goes away. i took the car in for its 5,000 mile oil change - told the toyota dealership (rodland toyota everett wa) about the problem and i was told it was checked out and there was no problem. there is a problem. *tr | |||
| 01/20/2010 | 300 | 1 | |
| I purchased a 2010 prius iv at boch toyota in attleboro mass on jan 9th . on jan 20th (odometer about 300 miles), about 5:20 pm i was traveling south in stop & go traffic on allens ave near rihospital (providence, ri) at about 10 mph over a rough surface (including railroad tracks that crossed nearly perpendicular to the road). when i applied the brakes, the vehicle failed to stop properly, until after a few anxious seconds, the brakes finally grabbed and stopped the vehicle less than 1 inch from the truck in front of me. no subsequent occurrence has been noted in the next 300 or so miles. in light of the recent reports of faulty software causing just such malfunctions of the braking system, i am reporting this to the national highway traffic safety division. *tr | |||
| 01/16/2010 | 15 | ||
| When using the brakes, on several occasions, my vehicle briefly lurched forward. most of the time it happens when the pavement is wet. it has happened about 15 times over the past 4 months. *tr | |||
| 02/05/2010 | 1310 | 1 | |
| Driving my 2010 prius today, i experienced a brake failure such as the one i've been hearing about on the news. here's what happened: i was braking, slowing to a stop approaching a stoplight (going no faster than 10 mph at the time), my car rolled over a manhole cover that was slightly lower than the surface of the road (no more than one inch deep) and suddenly it felt like my car was gliding on ice with no ability to stop, the brakes had completely failed; additionally, i heard a slight grinding sound come from the front right wheel well. i took my foot off the brake, re-depressed the pedal, and everything was instantly back to normal. the duration of the incident was no more than a second, but it was terribly alarming just the same. following this incident, i have contacted two different toyota dealerships' service departments who stated that they did not currently have any repair plans for this problem, apologized for the inconvenience, and one of the dealerships (toyota of hollywood (ca)) took my phone number while the other dealership told me to wait for a letter from toyota. i inquired of toyota of glendale (ca) if i should get a rental car for the time being (hoping to be offered a loaner) and they told me not to, and to 'drive safe.' i'm totally livid, this is a very scary problem to experience. *tr | |||
| 01/22/2010 | 15 | 1 | |
| Toyota prius 2010- when we go into a pothole and apply the brake, the brake doesn't work. instead, it accelerates. once, it hit a curb and damaged the bumper. *tr | |||
| 01/25/2010 | 3500 | 1 | |
| I own a 2010 class iii toyota prius. on several occasions, i have applied the brakes and the brakes seemed to release, causing the car to surge forward, before the brakes re-engaged. once this occurred when i hit a manhole cover and once on a slippery road but it has also occurred on dry roads with no apparent reason for the failure. i took the care to the dealer on 30 january 2010 who advised me that there was nothing wrong with my brakes. *tr | |||
| 01/26/2010 | 7700 | 1 | |
| I was driving my 2010 prius east on ohio street (near state street) in chicago. the street here has some potholes and manhole covers. when i applied the brakes, the car did not brake; instead, it seemed to surge ahead. i was able to stop the car before hitting a pedestrian. this was the most recent episode of this problem. i did not note the dates of the three prior episodes that have occurred since i purchased the car approximately seven months ago. *tr | |||
| 01/07/2010 | 2600 | 1 | |
| My 2010 prius hesitated to brake properly/caused a delay at 10mph on the freeway, as a result my left fender made contact with the vehicle in front of me. as result, my insurance increased, i had to pay $500 deductible to repair my bumper. also the back brakes have squeaked going in reverse since purchase in november 2009. *tr | |||
| 07/05/2009 | 500 | 1 | |
| During moderate braking when there are uneven or potholes in road there is a hesitation between the dynamic braking and the disc brakes. there seems to be a delay enough to scare the driver especially if it was the first time. *tr | |||
| 02/04/2010 | 1800 | 1 | |
| I have had a brief failure of the brakes on my 2010 prius iv. i was driving in town coming back from the school where i teach. i slowed as i came up on another vehicle stopped at a stoplight. although i had my foot on the brake, it did not start to brake for a couple of seconds. i narrowly avoided an accident. *tr | |||
| 09/30/2009 | 1 | ||
| Since i bought my 2010 toyota prius, i have been noticing that when i go over a bump or pothole in the road that the car lurches forward and seems to accelerate or i can't brake. it occurs a few times a week since i bought it in sept..2009 it is currently at the dealer and i don't know if they will be able to fix the problem. they didn't seem very confident that they would be able to. *tr | |||
| 01/29/2010 | 4000 | 1 | |
| On several occasions, my 2010 toyota prius has lurched ahead after hitting a pothole, as described in the feb. 4 new york times article. no contact or property damage has occurred. *tr | |||
| 01/05/2010 | 900 | 2 | |
| I was coming up to an intersection with a stoplight. the light turned red. i was going over a manhole as i hit the brakes. my brakes did not work and in fact, my car lurched forward. i stepped hard on the brake and eventually stopped. luckily, the car ahead of me was far enough away or i would have rear-ended it. another incident happened a few days after a snowfall. the end of my street had some hard, packed snow that the plow left behind. as i came up to the stop sign, my brakes did not work and i ended up in the cross street. i was only going about 10-15 mph at the time that i braked. this incident happened in december 2009, the other in january 2010. nothing has been done to correct or repair the car. *tr | |||
| 01/28/2010 | 1600 | 1 | |
| I attempted to bring my 2010 prius to a stop on a dirt road leading to an asphalt surface that was covered with a recent snowfall of about 2 inches. the brakes did not grab for about 3 seconds during which i attempted to pump the brakes. the car had 4 snow tires mounted on it which usually grab right away. *tr | |||
| 01/29/2010 | 2 | ||
| I own a 2010 toyota prius, purchased in november, 2009. twice, i have been going over a small bump in the road and the car has accelerated suddenly instead of braking. this happened both in january at the same intersection -- at the intersection of hampden and monaco in denver, colorado. *tr | |||
| 02/05/2010 | 7800 | 1 | |
| As i slow down in my 2010 toyota prius, if the car goes over any bumps, i feel an acceleration (actually a sudden stop in deceleration) as i am applying the brakes. i went to my toyota dealer and they acknowledged that they'd heard of the issue, but denied it was a problem. *tr | |||
| 01/24/2010 | 6229 | 1 | |
| I was driving my 2010 prius (built before january, 2010) on icy conditions. i coasted to a stop sign and applied the brakes. the car seemed to ignore my braking and continued through the stop sign 2-3 feet. i attributed the problem to the weather conditions and proceeded with caution. at the next stop sign, i was especially careful, but when i applied the brakes, the car seemed to surge forward for 1-2 seconds, enough time to put me in the path of an oncoming pick-up truck. nobody was hurt, but the damage will come to about $11,000. after hearing about the prius' brake problems, i realized that the lack of brake action that i experienced is very similar to other complaints about prius' built prior to toyota's january programming fix. i am upset that toyota knew about this problem, but failed to tell me about it. as a result, i will end up with a less valuable repaired vehicle with a known brake defect and higher insurance rates which will plague my wallet for years to come. *tr | |||
| 09/10/2009 | 35 | 1 | |
| I have had a 2010 toyota prius since september 2009. i bought it from a dealer-toyota of lake city, seattle, wa. i have been experiencing the following problem: a momentary reduction in braking performance while traveling over an uneven road surface or bumps and applying the breaks. it feels like the brakes slip and the car jerks forward when the brakes are applied while traveling (especially downhill) on an uneven road surface or bumps. this problem occurs every time/day i drive on an uneven road surface or bumps, and try to apply the brakes. nothing has been done to correct the failure as no recall has been issued yet. dealer notified of problem. *tr | |||
| 01/21/2010 | 6300 | 1 | |
| In june i purchased a 2010 toyota prius. i live in a cold winter climate and have noticed that the car brakes seem to disengage for short periods of time, particularly as i come to a stop on a snowy/ice rutted road, or am going over a bumpy surface. if i leave my foot on the brake, it will reingage quickly. in other words, i put on the brake, and the car starts to respond but then jumps ahead as if it's sliding on glare ice before coming to a complete stop. the problem is intermittent, depending upon the condition of the road at the time. i have reported the problem to the dealership. *tr | |||
| 01/02/2010 | 6000 | 2 | |
| Toyota prius 2010: i have experienced momentary loss of braking capability while traveling down the hill and made a right turn. this has happened twice. *tr | |||
| 01/04/2010 | 6000 | 1 | |
| 2010 toyota prius loss of brakes - this has happened four times in the seven months that i have owned this vehicle. all four times were when the vehicle was on ice or hard packed snow. details; when coming to a stop at relatively low speed (approx. 10mph) on either ice or hard packed snow the vehicle will lose all braking for about 5 to 10 feet. the first several times this happen i thought that i hit a patch of black ice but didn't understand why the anti-lock brakes did not chatter. *tr | |||
| 01/19/2010 | 4500 | 4 | |
| While driving my 2010 toyota prius i approached a red light with traffic stopped in front of me at the light. it had been raining and the pavement was wet. i began to gently brake to stop well behind the stopped traffic at the light. i passed over some rough/bumpy road and the brakes failed for about 1 second and the car shot forward approximately 10 feet. the brakes then began working again in abs mode and i was able to avoid hitting the stopped traffic in front of me by only 12 to 24 inches. this has happened a number of times since purchasing this 2010 prius in november of 2009. it has happened 3 or 4 times in the 3 months i have owned the vehicle. the loss of braking causes a severe sense of panic and distress and the vehicle does shoot forward for that second or so. and in the case noted above came very close to causing an accident. it is only time before it will cause an accident and harm to me and/or others. toyota has not offered any remedy. they know the problem exists and have known it for quite some time. communication from toyota about the problem has been almost non-existent. *tr | |||
| 02/02/2010 | 4000 | 1 | |
| One occasion of failure of brakes for 1-2 seconds on 2010 prius (over rough road). *tr | |||
| 02/04/2010 | 8500 | 1 | |
| 2010 prius braking problem. we thought is was us or the car. we bought in august 2009. my wife almost hit another car on 2/4. slow speed, bumps, the car did not appear to stop while braking, then it finally stopped. i told my wife of problems earlier, but they were periodic. *tr | |||
| 01/02/2010 | 25 | 1 | |
| This problem seems to occur when i am just beginning to brake or in the middle of braking, if i go over any uneven terrain (i.e. pothole, dips, etc.), the braking system feels like it is giving. it generally only lasts for a second or so, but it is unnerving. i do feel the car lunge forward at this point, and feel that i have no control over my car. i drive in the city on a daily basis, and that was one of the main reasons for me purchasing this car. it is not a comfortable feeling, and it is terrifying to my passengers. when i contacted toyota, they were very condescending. made it seem like it is just because the automobile is so advanced and technical, and that is supposed to happen. however, my 2 brothers both have older priuses, and neither have experienced this. *tr | |||
| 02/04/2010 | 3200 | 1 | |
| When braking to a stop at relatively low speeds, if you hit a bump or a pothole, the car stops breaking and lurches forward. this lasts for less than a second before normal braking resumes. *tr | |||
| 05/01/2006 | 10 | 1 | |
| Both my 2006 toyota highlander hybrid and my 2010 toyota prius have predictable brake lapses when traveling. i am aware of one site on the way to work, and one on the way home which have predictable surges during braking. i first reported this to my dealer in 2006, who could not replicate the event in the neighborhood near the dealer. the prius acts exactly the same. for my cars it always occurs when braking on a road at the place where a descend turns into an ascend. *tr | |||
| 11/27/2009 | 800 | 1 | |
| Momentary reduction in braking performance while traveling over a bump and applying the brakes. *tr | |||
| 02/02/2010 | 2420 | 1 | |
| My toyota prius has a problem with sudden shaking when lightly applying the brakes. the problem is intermittent. the dealer does not know what to do until toyota gives clear direction. *tr | |||
| 12/16/2009 | 8500 | 3 | |
| I have owned a 2010 prius since august 2009. since the purchase i have put 10,000 miles on the vehicle. to date i have experienced the braking problem on three separate occasions. my husband had one experience. it appears that when the front tires hit an uneven or different surface the brakes will disengage very briefly and then catch when the tires hit even ground. *tr | |||
| 12/20/2009 | 100 | 1 | |
| 2010 prius delayed braking - multiple times. *tr | |||
| 01/28/2010 | 5000 | 1 | |
| While approaching a stop sign and applying my brake,car would not slow down. pressed harder on brake,wheels locked up and my car slid through the intersection,car stopped when it hit the curve across the street. approx. 50 feet. i was driving at 10-15 mph when approaching the stop sign. the antilock brakes did not work. there was about 1-2 inches of snow on the road. *tr | |||
| 01/05/2010 | 5000 | 1 | |
| I own a 2010 toyota prius. i have noted that there is a frequent occurrence of the brakes not working properly especially going over rough road (ie railroad tracks). the car appears to skid but the anti locks brake light does not come on like it does when the anti lock brakes are working. this is an anxious situation as it feels like the brakes are not going to be able to stop the vehicle. it creates anxiety and a need to apply more foot pressure to control the car. *tr | |||
| 10/05/2009 | 500 | 1 | |
| 2010 prius vin brakes will delay and grab at times. are family got two 2010 prius aug 2009 and both have this same problem. delay and grabbing problem. *tr | |||
| 11/15/2009 | 3000 | 4 | |
| I purchased a 2010 toyota prius in sept 2009. since then, i have had 3 or 4 instances where the brakes let go momentarily as mounting reports are similarly describing. each instance has occurred at roughly the same place on my drive home from my child's day care, where the road is slightly uneven and sloping down, as i am breaking for a stop sign. since this is a residential area, i am not driving fast to begin with (<20 mph), and the brakes only let go for 1-2 seconds. prior to hearing all of these other reports, i had not thought to file my own and for that i apologize. my feeling is that unless this issue is corrected somehow by toyota, these instances will continue, and i do see potential for an accident. *tr | |||
| 02/04/2010 | 1 | ||
| My husband and i bought a 2010 toyota prius in november 2009. we both have noticed a sort of jerky feeling while braking over a small bump or pothole but we didn't think much of it until last night when i was driving home with my children. i was driving down a residential area at about 30 miles/hr. and was slowing down to stop at a red light. while i was braking i hit a medium sized pot hole. my car just leapt forward about 10 feet. i had my foot on the brake firmly the entire time but the car would not stop. finally my car came to a stop. i was very shaken by this incident. if there was a car in front of me i would have totally rearended them. i came home and immediately called the toyota dealership. i left a message with the service department. my call was returned by the manager this morning. she said that she had not heard anything from toyota about any brake issues and then she asked me whether i was speeding! she did not seem to believe me and basically said that there was nothing that they could do.*tr | |||
| 01/16/2010 | 10500 | 3 | |
| Toyota prius anti-lock braking issue has happened 3 times in our 2010 prius as described in media reports. it happens on slippery surfaces when the anti-lock brakes kick in, there is a split second of hesitation before they do. it causes a pretty good adrenalin rush for the driver. *tr | |||
| 10/06/2009 | 40 | 1 | |
| Momentary loss of braking on a 2010 prius model iv. vehicle was purchased on the 30th of september 2010 and currently has 3460 miles. during the first week of operation the brakes did not seem to work correctly. we thought this might be do to the fact that the car was new and the brakes need to be used as a brake in period. we notified the dealership during the second week of operation. they indicated that this was the first concern they have received. they stated that when we bring it in for the first 5000 mile service they would check the brakes. since the momentary loss of braking did not happen that often and only on bumpy roads or over speed bumps we were not too concerned.i did call the dealership again on 2/4/2010 and the service department stated they had not received any information on correcting the problem. what was interesting is that a person in the service department who owns a 2006 prius stated that the problem has been around for years but is much more noticeable in the 2010 model.. toyota has assigned a case number to our complaint ( 1002108541 ). no accident to date but driving the vehicle should not include worrying whether or not the brakes will stop in time. *tr | |||
| 11/18/2009 | 1 | ||
| Brake failure while going over speed bumps. sometimes on flat surfaces. *tr | |||
| 01/26/2010 | 7000 | 1 | |
| I have 2010 prius. lost control of the car a few seconds a few times especially in uneven down roads and slow or slippery roads. it jumps (move forward) a few feet, before it stops, even i apply the brake. i felt that brakes didn't work during the period. *tr | |||
| 08/10/2009 | 1500 | 6 | |
| We own a 2010 toyota prius which we purchased in june of 2009. on six different occasions we have experienced braking problems. one incident was on ice and when the brake pedal was pressed the response was as if there were no brakes at all and the vehicle slid freely for a brief moment. the other five incidents involved braking on a rough surface when approaching a stop sign (3 different locations). in these cases, when the brake was pressed the car did not begin to stop immediately. in fact i got the feeling that the car had been hit from the rear and i jerked back into my seat a little and felt that the car floated ahead before it began to stop. this all happened very quickly. i tried to replicate the situation and was successful once. in all but one of my experiences with this dilemma, the road was on a slight downward slope approaching the stop signs. there seems to be a certain speed that is needed for it to happen. toyota examined the brakes and said they were ok. obviously, they are not. *tr | |||
| 02/01/2010 | 5800 | 1 | |
| The brakes on my 2010 toyota prius momentarily quit working while driving over rough surfaces such as potholes, railroad tracks or very uneven pavement. this causes the vehicle to surge forward unexpectedly under braking. *tr | |||
| 02/01/2010 | 7000 | ||
| I own a prius 2010 model. i've had the car since august 2009. when pushing the brake pedal while the car os going over a patch of snow/ice, the brakes engaged after about 2-3 second. luckily, in the few incident that this situation has happened, there was not obstacles in front of the car. *tr | |||
| 02/04/2010 | 6600 | 1 | |
| The brake lights on my 2010 toyota prius do not illuminate under light braking. there is a very discernible gap after depressing the brake pedal before the brake lights illuminate. under light braking, the brake lights will not warn the driver of the car behind me that i am actually braking. this results in people tailgating me, and sometimes sounding their horn signal at me, while i am slowing down. once the pedal is depressed far enough -- under moderate to severe braking -- the brake lights will eventually illuminate. this has been confirmed by several co-workers and friends who also own this model of prius. all of our cars have the same issue with the brake light switch. *tr | |||
| 10/01/2009 | 2000 | 1 | |
| 1. low driving speeds (<30 mph), moving down hill, decelerating as approaching a stop sign. 2. when the front wheel strikes pot hole, the braking action stops/decreases, the car moves forward more quickly. in the current case, there are a series of three pot holes, so hitting each pot hole increases the forward motion despite having break pedal depressed. consequence, is immediate difficulty to come to a stop at a stop sign. 3. no current correction has been attempted. *tr | |||
| 12/08/2009 | 5800 | 1 | |
| I have noticed a braking problem with my 2010 toyota prius. i was slowing down because of a cow in the road and as i was slowing i hit a small bump and suddenly my brakes completely stopped working for about a second and it almost felt like the car was accelerating. i thought i was going to run into the cow and then the brakes grabbed again and i continued to slow down. it was not a good feeling. i also experienced a similar issue when i hit some ice on the road. when i hit the ice there was a brief second where the brakes seemed to be doing absolutely nothing at all. i could not feel the normal abs feel or anything. *tr | |||
| 01/11/2010 | 6008 | 1 | |
| The cruise control on my 2010 toyota prius does not always cancel while braking. this has resulted in unintended acceleration after braking while the cruise control has been set. a driver expects that the cruise control will automatically cancel while applying the brakes but this does not happen under light braking. this is even more pronounced while driving up a steep hill. on january 11th, 2010, i was in a situation where i actually applied the brakes to reduce my speed while traveling up a steep hill and felt the car fighting against me to maintain a steady speed. after i had slowed my prius to match the speed of the car in front of me, the cruise control unexpectedly caused the car to accelerate again, placing me at a less than safe distance to the car in front of me as we crested the hill. *tr | |||
| 08/15/2009 | 6000 | 1 | |
| My 2010 prius has had 4 instances when brakes didn't work. all involved slightly wet surfaces on a sem- potholed road in houston tx. i am taking car into fred haas toyota ,, but i am not sure anyone knows how to fix it yet. after trying to brake, there is a lurch forward before it comes to a stop. i do not feel safe in vehicle. fortunately, i was going less than 40 mph when it happened, and have not had an accident. *tr | |||
| 08/01/2009 | 500 | 1 | |
| I purchased a 2010 prius in july 2009. whenever i go over a bumpy road or hit a pothole while braking the car will lurch forward. i brought it to walser toyota in bloomington, mn for this problem. they said my brakes work fine. i'm still having the problem. in fact...i have it so often we have nicknamed it prius braking. so each time it happens we say prius braking. we know to not follow closely to anyone at a stop sign or stop light in fear of rear-ending them when the prius braking happens. *tr | |||
| 02/04/2010 | 11950 | 1 | |
| I own a 2010 toyota prius. i have had multiple times when i have hit a bump and was applying the brakes and the car seems to skip or float. on feb 4, 2010 i was approaching a stop sign and was braking. just before the stop sign i hit a bump and the car slid through the stop sign and into the intersection. *tr | |||
| 08/01/2009 | 1000 | 1 | |
| When driving, and going over a rough spot in the road (pot hole, crack, etc.) the car feels like it is lurching forward momentarily, as if the brakes released. this happens every time the car goes over a rough patch in the road. *tr | |||
| 12/01/2009 | 50 | 1 | |
| I have a 2010 toyota prius, bought in november 2009. i have noticed that if i am driving over a speed bump, pothole or even an uneven road surface and i brake, the car either accelerates or slips forward. the brakes don't work. i experienced this soon after i got the new car. yesterday, i slowed down to enter a gas station, but the road surface was driven with holes and the car did not slow down even thought i braked and it overshot the entrance. i'm nervous that i may hit someone in front of me and even worse, if i am slowing down for a pedestrian, i may hit a person. *tr | |||
| 12/18/2009 | 4200 | 2 | |
| 2010 toyota prius brakes on two separate times have almost caused an accident. both times slippery conditions were present. *tr | |||
| 08/28/2009 | 1000 | 5 | |
| I own a 2010 toyota prius. while braking on a slick or rough patch of road my car will briefly surge and then brake. at first i thought this happened because the car has low friction tires for efficiency. it has happened about 5 times since i bought my car in august 2009. after reading the recent reports it seems like i am having a braking problem, not a tire problem. *tr | |||
| 01/15/2010 | 4850 | 1 | |
| Lack of braking when hitting a bump in the road. in my case, there is a bumpy section of road under construction at the intersection of shiloh rd and fm 1171 in flower mound, tx. this problem occurs every time i brake at the traffic light at that intersection. *tr | |||
| 12/15/2009 | 800 | 4 | |
| Momentary loss of braking when abs activates causes car to travel an unexpected 12 feet. has happened 4 times since dec 2009. happens when slowing down for stop sign, or making left or right turn in traffic, when there is a slippery patch causing abs to trigger. *tr | |||
| 10/14/2009 | 400 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 50 to 55 mph on normal road conditions pressure was applied to the brake pedal, followed by no power response for a second. the failure occurred intermittently. in addition, when after a complete stop the vehicle began shaking excessively. the authorized dealer and manufacturer have been notified of the malfunctions. the failure mileage was 400. | |||
| 11/20/2009 | 1500 | 1 | |
| 2010 toyota prius purchased in october 2009. when braking, car hits a bump in the road or on a rough road, brakes appear to fail for approximately 2-3 seconds. *tr | |||
| 11/04/2009 | 4000 | 1 | |
| I purchased a 2010 toyota prius in june, 2009. i noticed that the vehicle seemed to lurch forward when braking - specifically when the road may have even the slightest bump or unevenness. when this occurs, i am not certain that the car will stop. this does not occur during breaking on smooth surfaces. i reported the problem to the toyota dealer in nov. and received this response: wednesday, november 04, 2009 1:05 pm: i'm responding to your question about the prius braking condition. one thing to know about the prius braking system is that when the brakes are applied there is a signal to the generator to engage. this does 2 things, helps regenerate the hybrid battery and assists in braking the vehicle, and the normal brakes also apply to assist in braking. i did have another prius owner ask about this also, i had him come out and drove with him and could not duplicate the stated condition. i think he was pushing to fast and hard on the brake pedal causing the lurch. when i drove his vehicle i did tell him i was trying to be very conscious of how much pressure i was applying to the pedal. i did notice the brakes are very responsive to pedal pressure. before responding to your e-mail i did check online with toyota technical group to see if they had any pertaining service bulletins pertaining to your question, there were no applicable bulletins. i hope this helps answer your question. thanks for choosing seeger toyota, tim evers, service manager the problem has continued and i've noticed it occurs when braking on snow packed roads -- i nearly rear-ended the vehicle in front of me when my car seemed to lurch forward - i could not stop - i had to swerve into another lane to avoid collision. i reported this problem to another toyota dealer (weiss toyota in st. louis, mo.) they did not have any response. when i contacted the service manager again on 2/4/10, i was told that they had not heard anything about a problem with the prius from toyota. *tr | |||
| 11/14/2009 | 1000 | 1 | |
| Toyota prius 2010 model: brake lag. i gather nhtsa is considering a recall. this is to further your data. i took my 2010 prius in to 355 toyota, rockville, in november to complain about the brakes disengaging when being applied over rough terrain, leading to a 4 - 6 foot jump forward then re-engagement of the brakes. i lodged this concern as part of getting an oil change service, and i have this complaint in writing on the docket. they told me the problem was just normal antilock braking. the problem has occurred multiple times since, causing about a 4 - 6 foot jump before the brake reengages. with all the ice we have had recently, i can now assure myself that this issue is not about the antilock brakes, which have a totally different feel, as they should. the brake disengagement almost caused an accident on monday this week on e street as the car hit an ice patch and the brake disengaged momentarily. i think the prius is a great car, but, this problem is dangerous and needs to be fixed. when i called 355 toyota yesterday when it became evident that i wasn't the only person reporting this, they were very nice but i am not sure that toyota has provided them with a solution. *tr | |||
| 09/01/2009 | 1 | ||
| When slowing down, if the car hits a pothole or bump in the road, it seems to accelerate. as soon as i put pressure on the brake, it stops. it almost feels like the car jumps ahead for a brief moment. *tr | |||
| 07/12/2009 | 300 | 1 | |
| Tl*the contact owns a 2010 toyota prius. while driving approximately between 10 to 20 mph on an uneven road surface; proceeding to a complete stop and applying pressure to the brake pedal, was followed by a no power response. suddenly, the vehicle resumed normal operation within a few seconds. the failure continued to occur intermittently whenever encountering an uneven road surface or pothole. the vehicle has not been inspected for the malfunction. the failure mileage was 300. updated 02/26/10 *bf the consumer stated she was satisfied that the complaint described the problem she reported. updated 04/29/10.*jb | |||
| 12/12/2009 | 1 | ||
| I have a 2010 prius purchased in late july 2009. i have definitely had problems with the braking system in winter weather on slippery surfaces. when braking, it feels like the antilock brake system fails and the wheels lock up momentarily. i don't let my wife or kids drive the car in slippery conditions. this is definitely an issue for me and i believe it should be investigated and pursued. i have contacted the dealer - alderman's toyota of rutland, vt about the issue. they are aware of the problem. *tr | |||
| 01/13/2010 | 500 | 1 | |
| When applying the brakes on my 2010 prius, there is a surge in the car when it hit a manhole cover (bump). this happened under 20 mph on gentle brake application. upon pushing on the pedal further, the car resumed braking and stopped. this surge lasted only a fraction of a second but was very disturbing and should not occur. *tr | |||
| 10/01/2009 | 10 | 1 | |
| We have an ongoing problem with our 2010 prius, purchased in 9/09. when going over a depression in the road, or a bump, when brakes are pressed, we feel like the car is bucking/accelerating. clearly, it's really that the brakes aren't working momentarily but it's frightening. if we had to stop, we couldn't. this happens each and every time in those circumstances. *tr | |||
| 02/05/2010 | 4210 | 1 | |
| Braking on rough surface results in car jumping forward and then eventually stopping. *tr | |||
| 01/10/2010 | 1 | ||
| 2010 toyota prius - sometimes when braking the car has a power surge and you start moving faster. *tr | |||
| 12/30/2009 | 850 | 1 | |
| We purchased new 2010 prius at the end of last september in 2009. both of us have had the experience of losing control of the car while braking on icy roads. my first experience happened during our first big snow fall. i was approaching the entrance ramp to an express way and had to apply the breaks when a car infront of me began to slow down and slide to the left side of the ramp. as i applied the breaks, the car began a series of quick forward jerks associated with knocking sounds. i also heard a slight change in how the engine sounded. fortunately, i escaped a traffic accident since my prius drifted to the right before control was reestablished. it was frightening. this is the first car i have owned that has an anti lock braking system. i assumed that is why i experienced the loss of control and why it felt so uncomfortable. when i told the dealership about it, i was advised to take the car to an open area and practice using the brakes in order to get used to it. since then, my husband has had the same experience while trying to stop the car on icy roads. he tells me that the jerking and the knocking sound is not part of a normal anti lock breaking system. this is why i am reporting our experience to the u.s. national highway traffic safety administration. thank you. *tr | |||
| 01/28/2010 | 7200 | 1 | |
| Momentary loss of braking while in at low speed (about 8 mph) on uneven road surface or wet conditions resulting in a surge forward. when in a turn, maintaining control of the vehicle can be challenging. condition is replicable, i.e., i can reproduce the braking loss/surge at the same place in the same conditions, at any time. *tr | |||
| 09/08/2009 | 600 | 2 | |
| Problem is onset of acceleration when brakes applied in 2010 prius 4, purchased at antwerpen toyota, clarksville, md in august 2010. problem has been detected 2 times, without accident, but with significant increase in anxiety. both incidents were approaching a stop sign, and seemed to be related to change in acceleration due to rapid braking. first incident in september 2009 was considered a 'driver issue' since i had owned the prius only 1 month. however, second incident in november 2009 was clearly not a driver issue, and was initiated the same way--stopping at a stop sign after driving at highway speeds for some time. neither incident involved a traffic accident. *tr | |||
| 02/05/2010 | 10500 | 1 | |
| On wednesday, feb. 5, 2010, driving a 2010 prius on a michigan road at 25 mph, some ice or freeze over, approximately 9:30am. i approached the stop sign and there was no brake engagement, no sound or feel of an antilock brake system . i couldn't stop the car, so i had to proceed thru the stop intersection. there wasn't an accident since there wasn't a car crossing the intersection. *tr | |||
| 01/15/2010 | 1200 | 1 | |
| I bought a 2010 prius in late december and about two weeks ago, i was driving on a local street, which had some potholes on it. i could see a pothole ahead of me. another car was coming from the opposite direction, which prohibited me from avoiding the pothole. i therefore braked slowly and came almost to a full stop as i went over the pothole. my foot was on the brake during this entire episode, but as i went over the pothole, the car suddenly accelerated. although i did not have an accident or hit anything, the reaction of the car was very unusual. since then, there have been some occasions when i have been at a light or stop sign with my foot on the brake and it has felt as if the car were about to move ahead, despite my foot being on the brake; it has felt like i needed to apply more pressure than normal to the brake in order for the brake mechanism to work properly. *tr | |||
| 09/01/2009 | 150 | 1 | |
| I live in the phoenix, az area. while driving my 2010 prius, when i go over an abrupt bump with brakes engaged braking completely fails momentarily. first few times this happened i thought maybe my foot had reduced pressure on the petal due to the bump but later confirmed that this is not the case. it occurs almost daily - every time i go over an abrupt bump with brakes engaged. i have a daily drive that takes me over some slightly rough pavement as i approach a stop light. nothing has been done to correct the problem - i am just aware of it and am careful to account for that occurrence as i approach the light. *tr | |||
| 10/30/2009 | 4500 | 5 | |
| I drive a 2010 toyota prius and have experienced braking problems while braking and going over bumps/rough pavement. i have 6000 miles on my car and have had this happen about 5 times. during one occasion, while slowing for stopped traffic, i drove over a bump, and i felt the break pedal vibrate like the antilock brakes were being activated, then a quick release sensation, during which i had no brakes, like i hit a patch of ice. i was just able to avoid hitting the car in front of me by swerving into an open drive way. i was also with my wife as a passenger in this car and she had a similar event while braking and hitting a bump in the road. this is not acceptible. *tr | |||
| 10/04/2009 | 4700 | 1 | |
| On 7 different occasions since purchasing our toyota prius 6 months ago, while pushing the brakes, the car has lurched forward as though someone pushed down on the gas. *jb | |||
| 10/15/2009 | 1000 | 2 | |
| I've experienced 2 problems with the brakes on my 2010 toyota prius. the first happens when i am applying my brakes while going over a pot hole. the brakes appear to release and catch again. this has happened numerous times under the same conditions. secondly, i've noticed that when the car has been parked and the wheels get wet, whether by rain or from washing the car, as i backup or go forward down an incline, the brakes seem to grab or stick when light pressure is applied to the brakes. the resulting stop in the car is as though i had jammed on the brakes quickly and with a great deal of force. *jb | |||
| 01/02/2010 | 1400 | 1 | |
| This is regarding the 2010 toyota prius. i just traded in my 2008 prius for the 2010 in december 2009. i have experienced temporary loss of brakes 3-4 times when hitting small pot holes. this only lasts for a couple of seconds, but it appears to happen randomly with no warning. i have contacted the dealership where i purchased the prius, but they cannot act until they hear from toyota. so, i must just drive as safely as possible, and stay alert. *jb | |||
| 10/27/2009 | 1 | ||
| 2010 toyota prius braking issue...i have had this issue a number of times. i will be driving and see a pothole/bump coming up. i slow down and brake but once the car goes over the pothole/bump the brakes do not work- instead the car accelerates forward with a lunging/jerky feeling. it is not right. i took the car into the dealer on 10.27.09. they could not duplicate this problem and could not fix it. i called toyota headquarters and they opened a case . they said i should take it back to the dealer and to see if they could duplicate it. case # 091139820. there is a big problem with the brakes- the car should slow down/stop and not speed up. if a car or pedestrian had been right in front of my car i would have hit them no doubt. *jb | |||
| 01/15/2010 | 10150 | 1 | |
| 2010 prius braking problem: when braking and vehicle encounters a bump in the road vehicle accelerates and surges forward. this has occurred approx 15-20 occasions. fortunately we have been able to stop the vehicle safely. reported to dealer and was informed this was normal. *jb | |||
| 01/07/2010 | 6200 | 2 | |
| Multiple times when braking in my 2010 toyota prius, the car has suddenly lurched forward instead of stopping. in all these incidents, the road was either slightly wet or the car had just moved over a bump or pothole. *jb | |||
| 09/01/2009 | 4423 | 1 | 08/01/2009 |
| Toyota 2010 prius braking problem -- i purchased the car 8/09 and within about 1 month noticed brief braking failure -- at first thought it was my imagination. later thought it was from losing grip with the road surface momentarily as in going over a surface irregularity. this happened several times albeit intermittently. then for a couple of months it was not a noticed problem. last weekend i experienced it again. it was on a clear and seemingly even surface as i tried to slow coming to a traffic light. it is brief and then the brakes do successfully engage. *jb | |||
| 12/19/2009 | 4701 | 1 | |
| I was approaching an intersection in december during a snow storm. the road was snowy and i braked, but my 2010 prius did not immediately stop. i went 10 - 15 feet before the car stopped. it was very scary, but luckily there was no other car in the road, or i would have been hit. *jb | |||
| 02/02/2010 | 8000 | 1 | |
| I have a 2010 prius, i have also noticed loss of brakes. when coming to a stop or going around a corner and hitting a pot hole the brakes seem to slip. i called the dealer today in kansas city they told me they had no recalls on the brakes for the 2010 prius. can anything be done? on going problem! my dealer is molle toyota. *jb | |||
| 01/10/2010 | 12573 | 2 | |
| I drive a 2010 toyota prius. on multiple occasions while attempting to slow down on rough surfaces, the brakes temporarily stopped working for 1-2 seconds even though the brake pedal was depressed. the most recent incident occurred while exiting the highway and attempting to slow down quickly on rough pavement. luckily, there were no other cars in front of me or there would have been a collision. if a car had been in front of me on any of the occasions then there would have likely been a collision. *jb | |||
| 12/24/2009 | 3200 | 1 | |
| Drove car over several potholes and attempted to bake quickly. brakes failed and i hit car in front of me. my car bounced off car in front of me and i again hit brakes sharply. they failed again and i hit the car in front of me again. road conditions were wet and slippery. *jb | |||
| 01/23/2010 | 5742 | 3 | 07/01/2009 |
| The brakes on my 2010 toyota prius failed to engage while driving over a pothole. the car seemed to accelerate briefly but then the brakes kicked in once i hit the brake pedal again harder. this is the third incident of similar problems since i purchased the vehicle in july 2009. *jb | |||
| 01/23/2010 | 400 | 1 | |
| While slowing down with the brakes, when i hit a bump or pothole on the road, my car lurches forward for a split second and i lose control of the ability to bake. *jb | |||
| 11/23/2009 | 1 | ||
| 1. i was driving on a local road and was switching lanes. i pressed my brake pedal very slightly as i was crossing the lane divider and as i hit one of the plastic bumps, my car accelerated forward. 2. this has recurred many times and there were no vehicles in front of me everytime it happened so i was able to come to a stop. several times i would either cross the pedestrian walkway at the intersection when this acceleration occurs. 3. i took my car to the dealer several times and everytime they told me it was normal and there was no problem. they were lying and completely clueless!!!*jb | |||
| 10/15/2009 | 5000 | 1 | 06/15/2009 |
| I purchased a 2010 toyota prius in mid-june. i am writing to report that i have also experienced the loss of brakes while traveling over uneven surfaces three separate times. it is quite unnerving when you are in mid-brake and it momentarily stops working. i am a very safe driver, keeping a good distance between my vehicle and the cars ahead of me; however, sometimes you do need to stop suddenly and i am concerned that if there is a pot hole between me and the car, the prius will not be able to stop in time. this problem has not resulted in any crashes but i hope that toyota takes these complaints seriously and does everything possible to fix the 2010 vehicles manufactured before january 2010. on that note, i was extremely surprised to hear that toyota knew of this issue and fixed it mid-year but did nothing to notify the owners of the initial 2010 model of their findings or offer a fix. that is bad business practice, something i did not expect from toyota. *jb | |||
| 09/15/2009 | 3000 | 1 | |
| On occasion the braking on our 2010 prius has not felt right. sometimes when braking and hitting a bump or pothole, there seems to be a brief period where the car feels like its accelerating or the brakes are not slowing it down properly. keeping pressure on the brakes gets by the problem but it is very unsettling and i have never had this problem with brakes in any car before. it has happened a few times since we bought the car in july 2009 but very intermittently. the date i am picking is just an approximate date for one of the incidents. i am reporting this now in light of the recent publicity about similar events reported by other owners, which made me realize what i had been noticing was a real issue. *jb | |||
| 02/04/2010 | 30000 | 1 | |
| I own a toyota prius 2010 purchased in the summer of 2009. i have experienced braking issues under certain conditions. *jb | |||
| 12/19/2009 | 3000 | 3 | |
| We drive a 2010 prius, purchased this fall. on three separate occasions, when i tried to brake in an area with some ice, the car accelerated rather than stopped. on two of the occasions, i failed to stop at an intersection (no one coming in the opposite direction) and on the third, the ice patch was about 3 ft in diameter on one side of the car only. i was going rather slowly, following a car that slowed for a speed bump. luckily the other car accelerated and i did not hit it. the speed bump slowed me down and then the brakes started working. *jb | |||
| 02/01/2010 | 1000 | 1 | |
| Prius braking problem when going slow speeds over a bump or pothole. *jb | |||
| 01/24/2010 | 1160 | 1 | 11/30/2009 |
| My toyota pruis 2010 which i purchased on nov.30 2009 had unexpectedly lurched forward when i was slowing down and applying the brake. i was taken by surprise and fortunately it stopped after i stepped on the brake very hard. this has happened several times already. *jb | |||
| 02/02/2010 | 6000 | 1 | 09/01/2009 |
| I own a 2010 toyota prius which was purchased in september 2009. my brakes fail to immediately stop my car when applied going over bumpy sections in the road, hitting a pothole, or when on slippery sections of the road. when hitting a bump it actually feels like the car lurches forward. the car will eventually stop after pushing the brake to the floor with force. it is very disconcerting and the potential for hitting the car in front of you or a person is very high. *jb | |||
| 02/03/2010 | 1 | ||
| Whenever i am driving and hit a pothole or bump on the road, immediately after going over the pothole or bump i feel like my prius surges forward or speeds up. this happens whenever i am going at a constant speed or when i'm braking. it has happened since i bought the car (two months ago) but yesterday morning it scared me more because i was going over a really bad road with many bumps. as i approached a red light i began to brake early but as soon as i got close to the stop there was a bump before it and my car lunged forward causing me to stop past the white line of the stop sign. this happens all the time when i hit a pothole or bump on the road. *jb | |||
| 02/03/2010 | 3500 | 1 | |
| When my 2010 prius goes over bumps the brakes disengage for a second or two and the car lurches forward. this has happened several times. *jb | |||
| 02/03/2010 | 2350 | 1 | |
| Sudden temporary loss of brakes in a 2010 prius. *jb | |||
| 12/17/2009 | 1 | ||
| 2010 prius - brakes stop working if they are being applied when car goes over bump or uneven road service. *jb | |||
| 01/08/2010 | 14000 | 1 | 07/01/2009 |
| Applied brakes at a stop light. the prius (purchased in july of 2009) ran over a bump, and it seemed like the brake disengaged. i removed my foot from the brake pedal and reapplied the brakes. the brakes seemed to engage and came to a stop. *jb | |||
| 01/11/2010 | 7000 | 1 | 09/01/2009 |
| 2010 toyota prius braking problem. i bought a 2010 toyota prius approx 4 months ago. during the approx 10000 miles i have put on the car, i have experienced a braking issue approx 5 to 6 times. most times i was braking for a stop sign in a 30 mph zone. once i was braking for a red light in a 45 mph zone. each time, there was bumpy road during the braking, and the brakes released. i can't say if the car accelerated, or it just seemed that way because of the brake release. it did not cause any accidents, but once it was on a snow covered hill and i slid out into a 2 lane 50 mph highway. there was no traffic, and therefore no accident. another time, i was stopping from 45 mph at a red light, and under braking, again on bumpy roads, the brakes released and i nearly hit the car in front of me. the brakes released enough allow me to panic and jam the brake pedal to the floor. the car stopped quickly. *jb | |||
| 01/29/2010 | 6500 | 1 | |
| My 2010 toyata prius (purchased in sept. 2009) has had repeated problems while braking over a patch of road with small potholes. if the brakes are engaged while over the patch of uneven road, the car lurches or jumps over the spot on the road and the brakes don't begin to catch until the car gets over the patch. this has happened 5-10 time over the last four months at a stop light. *jb | |||
| 02/03/2010 | 6 | ||
| Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) i am a retired colonel, usaf, but continue to work for the af as a civilian attorney. i purchased a 2010 toyota prius hybrid, [xxx] , on 9 nov 09. since that time, as recent as last evening when i pulled the vehicle into our garage, between my wife and i we have experienced on approximately six occasions the problem you have received other reports about concerning the vehicle's brakes. the release as i call it, occurred primarily when we hit irregular patches of roadway, such as potholes, washboard-type surfaces and the like. last evening, as i mentioned, it actually occurred as i was entering the garage. i approached a little faster than usual and was braking as the front tires encountered the elevated cement beyond the base of the garage door. the braking action was lost just for a moment after the impact with the cement. it's not that the engine speeds up when it happens, it's the forward momentum of the vehicle that increases with loss of the braking action. that has been the case each time it has happened. in fairness to the dealership, i have not notified it yet because i read not too long after the first time this occurred that other owners were beginning to report this problem and that toyota was developing a software fix for it. i assumed shortly there would be something in the nature of a recall and owners would be notified to bring their vehicles in for the modification. i do intend to notify the dealership tomorrow, but thought it necessary to report this to you now given the spotlight put on it today. *tr | |||
| 02/03/2010 | 8630 | 2 | |
| When the 2010 toyota prius goes over a pothole or over an ice patch is looses braking ability for one or two seconds. this has happened numerous times, the last time on the morning of february 3, 2010. *jb | |||
| 02/04/2010 | 5000 | 1 | |
| Our 2010 prius sometimes lurches forward on hitting a bump or driving on rough terrain. this happens predictably at certain locations. both my wife and i have observed this behavior, maybe a couple of times/week. not certain whether it's momentary acceleration or loss of braking but we think it's loss of braking. we have not yet taken any corrective action. i read in the paper that toyota is planning a recall. *jb | |||
| 01/20/2010 | 1 | ||
| 2010 prius loses brake force when regenerative braking is used over potholes or other uneven surfaces. it appears that when wheel slip occurs when braking in such instances, the regenerative system is disengaged causing loss of braking until the friction brakes are engaged by depressing the brake pedal farther. this has occurred on multiple occasions and can be replicated. *jb | |||
| 02/04/2010 | 4641 | 1 | |
| I've owned my 2010 toyota prius for 5 months now and frequently (at least twice a month) experience problems when braking on uneven ground. when i am hitting the brakes and run over a pothole or sudden bump, the car stops slowing down and almost shoots forward (feels like i'm hydroplaning) for a split second then resumes braking. this happened most recently today and could have caused an accident if i were closer to the car in front of me when it occurred. *jb | |||
| 01/20/2010 | 400 | 1 | 01/06/2010 |
| I was driving my 2010 toyota prius (which i'd taken delivery on about january 6), and i noticed what seemed to be a power surge or a momentary brake failure when i went over a pothole while i was slowing down after exiting a highway. the car seemed to lurch forward, so that i had to take my foot off the brake and re-apply it. this happened first on january 20, but has occurred three times since then. i've been trying to figure out what it was; at first i thought it was a power surge. but when i saw the article in the new york times on february 3, i knew that was exactly what had happened to me. every time it's happened as i was braking over a speed bump or pothole. i have made an appointment with my toyota dealer but have not gone yet. *jb | |||
| 11/15/2009 | 4000 | 1 | |
| As i was going downhill, the road surface was uneven. i attempted to apply the brakes. the pedal went almost to the floor as if there was no brake fluid. the car continued to go forward as the brakes did not engage. as i pushed the brake pedal further, the brakes engaged. *jb | |||
| 02/03/2010 | 8900 | 1 | |
| 2010 prius surges forward when i hit a bump with the brake pedal depressed. i have had a few near misses but no accidents to this point. last occurred yesterday. *jb | |||
| 01/21/2010 | 1 | 09/01/2009 | |
| My 2010 toyota prius has the same problem that are listed on this site with brakes. when trying to stop immediately after a bump or pothole and during minor slick condition the brakes don't react immediately. a couple of weeks ago i slid into an intersection with my brakes fully engaged before the brakes kicked in. thank god no car was in front of me. the car behind me saw what was happening and slowed down. this brake problem occurs weekly since my purchase of the vehicle in september 2009. *jb | |||
| 10/01/2009 | 2000 | 1 | 07/22/2009 |
| I own a 2010 prius, purchased 7/22/09. i have experienced a sudden surge when traveling over a bump or large pothole. the car momentarily surges and feels slightly out of control. this has happened about a dozen times in the 6 months i have owned the vehicle. i am concerned about my safety and this is why i am writing to you. *jb | |||
| 11/08/2009 | 1000 | 2 | |
| I was going down a fairly steep hill, applying my brakes evenly as i approached a stop light. there were no cars in front of me, and the road was dry. suddenly, i thought that i had been struck from behind because my car lurched forward (as though i had been struck). my 2010 prius was only about two months old at this point. the brakes re-engaged after a second or two, but i was afraid that i would have hit someone if i hadn't been alone on the road. the same thing happened when going down another steep road about three weeks later. again, there was no property damage and no one was hurt. but i was startled. i do not know if the road was uneven or if there were potholes. i have not reported these incidents to the dealer, the car company or the police because (although they scared me), i did not think much about them. now that i know that others have experienced this, i have become fairly worried. *jb | |||
| 01/13/2010 | 1 | ||
| My 2010 prius accelerates over bumpy road conditions irrespective of whether or not my foot is on the brake or not on anything at all. | |||
| 12/20/2007 | 4400 | 1 | |
| Brake failure on our 2010 prius. *jb updated 02/17/10 *bf the consumer also stated he experienced sudden acceleration. updated 03/05/10 | |||
| 06/15/2009 | 500 | 1 | |
| I own a 2010 toyota prius and am experiencing the exact problem that was just announced about the brakes. when i brake over a bumpy surface the brakes go almost to the floor before i am able to stop. also happens on snowy/icy surfaces. i had toyota look at my brakes on 10/27/09 at toyota scion of oak lawn, il. i was told by them that my brakes checked out fine. *jb | |||
| 02/04/2010 | 5159 | 1 | |
| My 2010 prius lurches when i go over pot holes or rough patches. i can control the lurch, but it does not feel right. it does not happen all the time. i am not sure what makes the difference between it happening and not happening. i received the title to the car in 8/27/09. *jb | |||
| 01/20/2010 | 6000 | 1 | 10/01/2009 |
| I bought a 2010 prius in october. i live in maine where winter driving conditions are not great. i have had three incidents now of driving at a low speed on plowed but snowy roads where the brakes did not catch when i applied them. once was going around a downhill curve which was scary. each time they eventually catch but not until i have skidded for about 3-6 ft. fortunately, i have not hit anyone yet. i called my dealer yesterday and was told there had not been a recall and there was nothing to be done about it yet. *jb | |||
| 10/02/2009 | 1500 | 1 | |
| Prius 2010. 1. when stopping and one of my front tires goes over a pothole, stick, or any other markedly uneven pavement, the brakes release propelling the car forward. 2. i notice most when i am going down hill. so far it has only happened when i am going slowly and braking hard enough to stop the car. it has not happened at higher speeds in traffic when i am merely slowing down in traffic. 3. i brought it to the attention of the service department at the local toyota dealer. i was told that it is the way the brakes are supposed to operate. i pointed out that i have owned 11 cars over the years and rented far more and never experienced this before. the complaint fell on dead ears. *jb | |||
| 02/04/2010 | 0 | 1 | 09/01/2009 |
| Toyota prius brake loss of control - when the vehicle goes over a bump (e.g. pothole, manhole) when the brake is being applied, it doesn't immediately stop but instead seems to lurch forward with the sensation of loss of control. this especially happens on city streets or in icy conditions. if there was a person or car in front of the vehicle, the prius would have hit the person/car. this happens every day at the same stop (bump in road when turning), as well as random places at least weekly since purchasing the car in september 2009. *jb | |||
| 01/15/2010 | 200 | 1 | |
| When driving i sometimes momentarily feel a pause in the braking system of my new prius. this occurs every time i drive on a certain street at a fairly high speed. while i am braking my right front tire goes through a pothole while my front left tire remains on flat tarmac. as my front tire comes out of the pothole i feel as if the brakes stop working for half a second and then they start working again. i estimate that i am driving through the pothole around 20-30 miles an hour. i drive this way every day from my work to house and i am always braking on this stretch of road as i turn a corner right after the pothole. there is a traffic light right after the pothole so whenever the light is green as i approach the pothole this happens to me. this has happened to me around 50 times - ever since i bought my new prius in september 2009. *jb | |||
| 09/10/2009 | 150 | 1 | 08/22/2009 |
| Braking problems with 2010 toyota prius. since the purchase of this car on august 22, 2009, under the cash for clunkers program, my wife has repeatedly described the situation in which the brakes release unexpectedly. specifically, when braking at low speeds while driving over a rail crossing (single track), the brakes release momentarily as the car experiences the bumping motion induced by the tracks. this can be replicated at will. in addition, she has noticed a similar momentary release of the brakes when approaching a stop sign on a slick road when the anti-lock brake mechanism was engaged. in these few cases, the car rolled past the stop sign and partially into the main travel way. note this was not the result of sliding on slick pavement or the pulse-release of the anti-lock brake system but the release of brakes. none of these cases resulted in any physical impact or property damage--just the disconcerting feeling that the momentary loss of braking engendered. when my wife first noted this, i went to http://priuschat.com/, the prius owners forum (which i think is sponsored by toyota). the braking issue was noted by other forum members. *jb | |||
| 10/22/2009 | 650 | 1 | |
| Emergency braking delay in brake action. when the vehicle ahead of me immediately hard-braked on a yellow stop light at a red light camera monitored intersection (westbound illinois 38 at summit in villa park, il) i had to brake hard and maneuver to avoid rear-ending him. this was the first, and only, emergency stop situation i have had with my 2010 toyota prius. we were travelling just a bit below the posted 35 mph limit, and i was following at an appropriate interval (3+ seconds or about 3 car lengths). there was about a 1 second delay between jamming on the brake and significant braking action. i never experienced such a delay in my abs equipped 2000 chevrolet monte carlo ss or my 1995 ford windstar lx, since this experience i drive the prius with a greater interval, although this means other drivers regularly merge into the safety gap that i am trying to provide. *jb | |||
| 01/15/2010 | 1000 | 1 | |
| 2010 prius brake applied in zero temperature weather approaching a red light on slight down sloping road covered in ice/snow. the brake pedal was pushed as would normally be applied (maybe approx 1/3 - 1/2 brake pedal travel) and there was no applied braking. the car kept rolling forward to where i had to make a decision to continue rolling with a right turn into the intersection and continue travel. luckily the oncoming traffic was far enough away to not crash into me. i would estimate that the brake was applied for about 1-2 seconds, enough travel time to force me to make a decision that i needed to continue through the intersection before the oncoming traffic. this same type of scenario occurred on an exit off of an interstate ramp down another down slope with ice/snow that again when the brakes where applied, the regenerative engine brake applied, but when the abs went to engage due to the slippery surface, there was a 1-2 second duration of sensation of no brakes. pushing pedal further (or just waiting the 1-2 second delay) seemed to eventually apply brakes. i am a systems/test engineer that performs numerous work on commercial and military aircraft and i now know how to anticipate this situation for myself (i.e., i am more careful on braking earlier especially on slippery surfaces more than normal distance from my other honda vehicles on same type of surfaces to account for this possible 1-2 delay time in braking); however, this is unacceptable for my wife who does not have the same experience as i do or same technical feeling of what this vehicle is doing. again, if the traffic on that one intersection was closer to me than it was, there would have been a side impact collision. i have yet to experience this issue on solid roads over bumpy surfaces. with today's toyota revelation that the jan 2010 prius has a fix for this, i demand to have this same fix applied to my three month old 2010 prius. *jb | |||
| 01/28/2010 | 1 | ||
| I was driving my 2010 toyota prius down the road here in berkeley, ca, and applied the brakes as i was hitting a bump in the road. the brakes did not work. i thereafter lifted my foot off the brake and hit them again, at which point the brakes worked correctly. *jb | |||
| 09/10/2009 | 3000 | 1 | |
| I want to report a momentary brake failure of 2010 prius over uneven roads 2 months ago. i didn't report it earlier because i didn't know if it was a one-off or systematic issue. two months ago, i was driving a newly owned prius with hardly 4000 miles on it over a stretch of rt. 93 from andover to boston. i was traveling at about 65 - 70 mph on the left fastest lane. i cam across a bumpy patch, probably the road was being repaired, and it was not late for me to slow down as i didn't expect such unevenness on a major highway. i stepped on the brake while the car was being tossed up and down by the bumps and i immediately felt that the car lost braking. luckily, there was no car ahead of me and the braking did recover after the car settled down. i owned 4 toyota's from suv to the hybrid and prius is the only one that has this problem. i just want to support other people's complaints about this car. i must say that the braking did recover quickly that a collision was not likely unless someone drive the car very fast on an uneven road that is also crowded. however, a car should not behave like this under any conditions. *jb | |||
| 02/03/2010 | 900 | 1 | |
| Toyota prius 4th generation purchased one month ago. surges forward with brake depressed when going over potholes. *tr | |||
| 01/12/2010 | 2000 | 1 | |
| I have a 2010 prius that lurches when i brake. this only happens every once and a while. i took it to the toyota dealership, they looked it over and said it was fine. to say the least i continue to be very concerned. *tr | |||
| 02/04/2010 | 1 | ||
| Prius 2010 slow braking. i thought it was just me but now i found out the braking is rather slow and a lot of others feel the same way. i have to adjust my braking when i switch cars with my wife and have to extra careful when i switch back to prius. *tr | |||
| 02/04/2010 | 2010 | 1 | |
| I drove over a bump while braking and it felt like the car was sliding on ice. it felt like there were no brakes. *tr | |||
| 09/09/2009 | 1500 | 1 | |
| My 2010 prius which was purchased in august of 2009 on several occasions when braking on rough surface or pothole slips momentarily. *tr | |||
| 02/04/2010 | 1 | 1 | |
| I have a 2010 prius and had a 2005 prius with all the safety features. when i had the 2005 prius, i noticed on some roads that during braking, the brakes would release then reengage, giving the sensation that the car is accelerating. this happens when the road has a series of dips (washboard). the first couple times this happened, it was rather frightening because the car in front of me had stopped, and i felt as if i were accelerating. this is a reproducible event that occurs at a known location that i simply avoid. the road in this particular area is also down slope, which lends to the acceleration feeling. i have driven my 2010 prius over this same area with very much the same result. my initial assessment was that the traction control took over to regain traction, however i would not thing this is acceptable. the toyota dealership said this is normal behavior and is not a problem. please feel free to contact me and i can describe better the conditions for this very reproducible event. *tr | |||
| 12/15/2009 | 4000 | 1 | |
| I've been monitoring the toyota recall news because i have experienced similar braking issues with my new 2010 prius. the best way i can describe it is as if the braking system hiccups when the brake is applied while traveling over an uneven road surface. as this was a new vehicle type that i had never driven before i thought it was inherent. *tr | |||
| 12/20/2009 | 6300 | 1 | |
| 2010 prius: brakes had momentary failure on a snow-covered speed bump. vehicle speed was about 10 mph. this was the first of several incidents. *tr | |||
| 02/01/2010 | 5000 | 12 | |
| We have been experiencing, intermittently, the exact problem described in recent news accounts about the momentary failure of anti-lock brakes on the 2010 toyota prius. when braking on a rough or slick surface, such as thermoplastic lane or crosswalk markings, the car feels like it's surging forward. we believe it is not so much an actual surging as it is the momentary absence of loss of braking, but it feels like the car is a bit out of control, and potentially dangerous. we have experienced this momentary brake failure on perhaps a couple dozen occasions. fortunately, none of these incidents have resulted in a crash. we contacted the dealership to let them know that we had been experiencing the same issue described in news reports, and were told that they have not yet received instructions from toyota about a recall or potential fix. *tr | |||
| 01/10/2010 | 5000 | 1 | |
| When braking at lower speeds and traveling over a transition (manhole cover, pavement break), the car will act as though the brakes lose grip for a second, then regain stopping power. i haven't hit anything, but it's been unsettling. *tr | |||
| 08/30/2009 | 1000 | 1 | |
| 2010 toyota prius brake issue. we are experiencing a momentary loss of braking capability while traveling over an uneven road surface, pothole or bump. *tr | |||
| 05/01/2009 | 300 | 1 | |
| 2010 toyota prius purchased april 2009. reported to dealer shortly after purchase that antilock brake system releases brakes and lunges car forward if tires encounter uneven surface (e.g., pothole) while braking. occurrence has resulted in missing stop signs, but no accident to date. toyota dealership reported that this was normal operation despite my calling the dealership on two separate occasions. *tr | |||
| 01/21/2010 | 1400 | 1 | |
| Tl*the contact owns a 2010 toyota prius. while driving at speeds of less than 20 mph in overcast weather conditions and approaching a stop sign at a busy intersection, the brakes failed to engage and the vehicle proceeded with caution through the intersection. the dealer was contacted and stated that they never heard of any similar failures. there were no recalls or repairs made to the vehicle. the failure and current mileages were 1,400. updated 03/18/10 *bf updated 05/12/10.*jb | |||
| 12/01/2009 | 11000 | 1 | |
| I own a 2010 toyota prius and have experienced several times the braking failure problems recently discussed in the national media on snow and ice and on rough road surfaces. this has happened several times during the winter weather season particularly on snow and ice. i purchased my prius in july 2009. *tr | |||
| 01/23/2010 | 7000 | 1 | |
| 2010 toyota prius ii--purchased august 2009. on january 23, 2010 i crashed my vehicle into a car that had stopped in front of me. i applied the brakes but was unable to stop the car before it hit the car in front of me. i am contacting you because i believe the brake issues with the 2010 prius may have been a contributing factor in the crash. in the 5 months that i owned the car i remarked that the brakes did not seem to function like abs brakes on other cars that i had driven. i chalked it up to the fact that car was new to me and had many features that were different from a traditional car. *tr | |||
| 12/25/2009 | 4500 | 1 | |
| From a dead stop, moving forward or in reverse, brakes will lock or grab & will not release easily. *tr | |||
| 12/28/2009 | 5000 | 1 | |
| Brakes are terrible. vehicle computer causes brakes to unload when going over very rough road or potholes. if stopping just behind traffic, collision is always imminent. brakes are also extremely sensitive, especially at low speeds. while trying to feather the brakes while backing out of a parking space (for instance) the computer seems to tell the brakes to fully clamp down without applying additional force to the brake pedal. this causes a lurching motion as opposed to a smooth backup at idle speed. also, when coming to a stop, the slower you go, the more sensitive the braking becomes such that you are trying to not over-apply the already sensitive brakes you inevitably end up stomping on them at the last minute because the amount of travel from zero to full braking is miniscule. i have owned all three generations of prius. the first had brakes that were unusual due to the regenerative system, but they had acceptable amount of pedal travel and were not a problem. the second generation's brakes were much improved over the first edition and they felt almost like normal brakes. but this third generation's brakes are absolutely hideous! i complained about them to the dealer about a month ago and they said they were normal and that all prius brakes were like that. that doesn't make it right! i am glad all this publicity has vindicated my assertions. *tr | |||
| 01/12/2010 | 1000 | 1 | |
| Several times since i purchased my 2010 toyota prius on dec. 23rd 2009, i've experienced momentary loss of brake control while braking. it happens for like a split second then return to normal. i haven't noticed any connection between when it happens and rough road surfaces. *tr | |||
| 01/04/2010 | 150 | 1 | |
| 2 weeks after purchasing a 2010 prius (december 2009) i was slowing down to make a turn and while braking i hit a small pothole in the road my car lunged forward. at first i thought i had been rear-ended but looked and saw that the nearest car was a good 20 feet behind me. the same thing happened to me again last week (week of february 1). this time i was braking for a stoplight when the car hit a bump in the road and again lunged forward. the lunging is quick but very noticeable. i have changed my driving habits in the hopes that i won't rear-end someone. i have not called in to the dealership about this but did fill out a satisfaction survey from toyota yesterday that i got due to the purchase of the car and included these problems in that survey. *tr | |||
| 07/01/2009 | 50 | 1 | |
| Momentary brake failure on 2010 prius, has occurred on numerous occasions. *tr | |||
| 02/03/2010 | 5000 | 1 | |
| 2010 prius when driven over pothole while braking seems to surge forward until the wheels have passed the pothole. then brakes seems to catch and perform normally. *tr | |||
| 02/02/2010 | 3000 | 1 | |
| While approaching a stop sign at a particular intersection with a bump and pothole just before the stop area at approx 30mph, car momentarily loses braking power when passing over bump and pothole. i can replicate this issue every time i approach this intersection, and it has happened several times since we bought the car in 8/09. problem was reported to dealer in september, and we were told there was no issue with the brakes on the vehicle. *tr | |||
| 08/01/2009 | 300 | 1 | |
| Prius 2010, purchased july, 2009, dch toyota, mamaroceck, ny. braking problems since purchase: brakes disengage, car jumps, steering wheel needs to be controlled - while going over a bump, pothole or ice. in order to accommodate to this defect i must drive car carefully and slowly. this occurs regularly on routine drives in the metropolitan area. *tr | |||
| 12/09/2009 | 1500 | 1 | |
| My 2010 prius won't stop on rough or iced up roads. *tr | |||
| 10/30/2009 | 500 | 1 | |
| I bought a 2010 prius in october 2009. i brought the prius back to the dealer, stevenson toyota, for a problem that would occur when the vehicle brake was completely depressed and the traction control light would come on. i also mentioned that when i would hit a bump or drive on ice, it did not seem that the vehicle would stop properly and that when hitting a bump, the vehicle would seem to lurch forward. the dealer said this was a safety aspect of the vehicle and was normal operation. a few weeks later, i called the dealer again to reiterate my concerns about the braking problem and the lurching forward when hitting a bump, they again repeated that it was a safety measure new on the 2010 prius models. now that the recall is out, i am skeptical on the validity of their statements saying that it was a new 2010 safety feature. my wife who also drives the vehicle does not feel safe driving in the snow because of the feel of the brakes when attempting to stop. i bought the car for her but now drive it more because she does not fee safe in the vehicle. *tr | |||
| 09/06/2009 | 1000 | 1 | |
| I have noticed an issue with the brakes in my 2010 prius (iv) purchased in late august 2009 from wellesley toyota in wellesley, ma. i have noticed an odd pulsing in the brakes, much like the feeling of alb system kicking in. the car seems to continue moving right through my braking. i sometimes have to then slam the brakes to make the car stop. this is usually taking place as i am slowing to a stop sign or light -- and frequently when i'm going downhill. i had thought it had something to do with the switch between gas & electric powering but i can't be sure of that. *tr | |||
| 01/20/2010 | 5010 | 1 | |
| I own a 2010 toyota prius, purchased in october of 2009. i contacted the dealer about slippage when braking and they were not helpful. when the brakes are applied, the car does not stop but feels like it is slipping and you need to reapply the brakes. i contacted toyota about this problem and they did not respond. i have now recontacted the dealer and they told me to wait to hear back from them. they have not offered to loan me a car until this problem is resolved. i am deeply disappointed by toyota and the dealership. *tr | |||
| 02/03/2010 | 1800 | 1 | |
| On feb. 3, 2010 the brakes in my 2010 prius failed on sudden application and the pedal went all the way to the floor. i swerved right to an open lane, reapplied the brakes and this second application was successful and slowed the car. event took place going 47 mph on crest of hill when car in front braked suddenly, and i went from acceleration to sudden braking. prior to this experience i had made two complaints to my local dealer because the brakes occasionally grabbed violently when i was backing out of a parking space. the dealer could not replicate this action, so i just put up with it. the dealer now has my car and has provided a rental car at my request. *tr | |||
| 02/03/2010 | 7857 | 1 | |
| We have a new 2010 toyota prius type iv that my wife drives. several times now she has experienced problems with the braking system; when she applied the brakes the car lunged forward and then she had to apply the brakes really hard in order to get it to stop. this occurred several time upon hitting a bump, but it has also occurred on a smooth surface road. we obtained this new car in september 2009; so the frequency of this problem is pretty high. we understand that others are experiencing this same problem... we would like to confirm and complain that we too are experiencing these same problem with our prius. we have called the local car dealer where we purchased the vehicle, they are unaware of this problem and offered to do noting about it. we also tried to call the toyota experience center but the 800 number was over run with calls and stated that they could not process our call due to high call volume. at this point i am very concerned for the safety of those in the car and those who may be struck should we experience this problem at a critical moment in stopping the vehicle. *tr | |||
| 01/05/2010 | 700 | 1 | |
| I like many others have had skidding and non-responsiveness when i hit the brakes on the 2010 prius. *tr | |||
| 11/27/2009 | 1500 | 1 | |
| 2010 toyota prius - purchased in nov 2009. car jumps forward when applying brake. *tr | |||
| 08/01/2009 | 3000 | 1 | |
| Brakes sporadically grab and make smooth braking impossible. these are unexpected and intermittent. it occurs maybe ten percent of my trips. consequences are jolting stop. nothing allegedly can be done to correct the failures. *tr | |||
| 01/01/2010 | 1000 | 1 | |
| I have a 2010 prius, which has experienced the brake delay problem that i read about in the news today. it has happened approximately 3 times since i purchased the car in november 2009. i pressed on the brake, and the car did not slow immediately. each time there was a momentary delay, which frightened me. *tr | |||
| 09/28/2009 | 100 | 1 | |
| I purchased a 2010 toyota prius in september. i have noticed that during the first few minutes of driving after the car has been started, if i go over a speed bump the car is much more difficult to brake to a stop. after the car is warmed up, this issue goes away. there is a speed bump i have to go over on my way home from work and have experienced the problem consistently. *tr | |||
| 08/01/2009 | 1000 | 1 | |
| 2010 toyota prius purchased on july 31, 2009. between 10 and 12 times since purchase date, when applying the brakes simultaneously with driving over a bump or rough section of road, the car felt as though it was accelerating rather than braking. this lasted for one second or less but was frightening. the first time i thought it was my imagination but it occurred another 10 times or so. it always occurs when going over a bump. as far as i can recall, the pavement was always dry. fortunately, there was no accident in any of these occurrences. *tr | |||
| 12/20/2009 | 7000 | 1 | |
| When traveling forward over uneven, bumpy pavement, pot holes, or speed bumps and applying the brakes at the same time the car suddenly accelerates very strongly. the acceleration happens even though you are pressing on the brake pedal and your foot is completely off the accelerator. the sudden acceleration is so strong that it nearly jerks the steering wheel out of your hand. this incident has happened once when my wife was driving the car and three times when i have been driving. it almost feels like the brakes stop working for a second or two and the car accelerates by itself. when it happens it is quite startling. i took the car to the dealer and they said nothing was wrong with it. this is a serious safety issue that needs to be looked into. *tr | |||
| 01/17/2010 | 300 | 1 | |
| I have a new 2010 toyota prius that i bought in dec 2009. i did experience something that sounds similar to the brake problem now being investigated - a momentary loss of brake power while going over a potholed/bumpy patch of road. it was just for a moment and no accident resulted, but i am worried now that the problem might not have just been a random fluke. separately, i had another strange incident with the car. backing out of a parking space, i had not yet hit the accelerator but the car immediately jumped backwards as though i had hit the gas hard. the only way prevent it from bucking backwards was to hit the brake. i had to sort of jolt out of the parking space because there was no in between of normal/slow acceleration. once i got out of the space and put the car into drive, it was accelerated normally. *tr | |||
| 01/10/2010 | 600 | 3 | |
| I purchased a 2010 toyota prius about 6 weeks ago and have experienced a brake surge problem at least three times. in each instance i was traveling about 20 mph and had applied the brakes. when the car hit a bump in the pavement it surged forward for about 0.5 second before the brakes grabbed again. the road surface was dry on each occasion and my impression at the time was that the brakes just let go. *tr | |||
| 11/10/2009 | 1000 | 1 | |
| Our 2010 prius has a problem with the brakes when going over bumpy roads. *tr | |||
| 12/14/2009 | 6100 | 1 | |
| Issue with brakes of prius 2010. we lose some control of the vehicle or it veers when the brakes are pushed sometimes. it happens very rarely but when we push the brake, the car will sometimes seems to slow, then accelerate a couple of feet before stopping. *tr | |||
| 07/01/2009 | 50 | 1 | |
| Momentary lack of braking on 2010 toyota prius bought summer of 09. has happened many times. also brakes grab erratically jerking the car severely when in reverse. same problems are noted by many, many owners on priuschat.com forum.*tr | |||
| 01/30/2010 | 1 | ||
| My 2010 prius accelerates when it hits a pot hole while slowing down. this happens more when there is snow or ice on the road. in icy conditions i am slowing down and not pressing on the brake, but if it hits a pot hole -- a momentary loss of control is experience. it seems like the electric brake switches off and hydraulic brakes kicks in because it brakes harder once back. *tr | |||
| 01/01/2010 | 1 | ||
| 2010 toyota prius iii -- brake problem, similar to that described in news release of 4feb10. car momentarily accelerates whenever hitting bump, even though brakes are being applied. ongoing over the past several months. *tr | |||
| 12/07/2009 | 5 | 1 | |
| We have toyota prius 2010 model and there has been incidences in the past couple of months where the brakes have not functioned properly. on dec 7th 2009 on a traffic light signal my car despite applying the brakes kept on moving and ended up hitting another car. my car was damaged but i just couldn't comprehend the reason as to why the car didn't stop. even after couple of weeks when my husband was driving, while we were stopped at the traffic light, the car kept rolling forward. all we could think was that may be we were not pressing the brakes hard enough, but since other people have come out with similar problem with prius, the whole thing is making sense to us. i use prius regularly with my two young kids in the back but now i am scared to even drive it. *tr | |||
| 09/10/2009 | 6000 | ||
| Tl*the contact owns a 2010 toyota prius. whenever the contact attempted to engage the brake pedal while driving 35 mph when the vehicle lunged forward and then it accelerated. the vehicle was taken to the dealer and advised that the vehicle was operating normally for since it is equipped with an electrical engine switch. the failure has occurred repeatedly. the failure mileage was 6,000. | |||
| 02/03/2010 | 2300 | 1 | |
| We have a 2010 toyota prius ii, and have experienced multiple instances of the brakes not working - especially while driving through our apartment complex and going over speed bumps. this has also occurred while on the interstate, slowing down for traffic. the date listed below is for the most recent occurrence. *tr | |||
| 02/03/2010 | 1300 | 1 | |
| While driving northwest on national bl, just past venice blvd, in my 2010 prius, i applied the brakes and, rather than slowing, the car accelerated forward. i released the brake and pressed it again, very firmly, and the brakes finally caught. *tr | |||
| 01/02/2010 | 9389 | 1 | |
| 2010 toyota prius brakes jerking in fanning on rough roads. i have call dealership but have not heard back.c all my ins. company in was told not to dive the car. now i have a car that keep be used. *tr | |||
| 01/27/2010 | 3900 | 10 | |
| After stopping the car, then either moving forward or reversing, brakes will grab. brake grab is strong enough that it feels like i've slammed on the brakes when they are barely touched. in order to correct, i put the car in park, then either d or r. this has happened about 10 times since i bought the car in august 2009. *tr | |||
| 01/25/2010 | 2650 | 6 | |
| I own a 2010 toyota prius, which i purchased in august, 2009. i have experienced a braking problem at lease 6 times since then. when i brake while driving over rough roads including driving over metal cover plates in roads, i lose all my brakes for a second or so. it feels like i have hit a patch of ice. it is very scary, and really gets your attention. *tr | |||
| 10/20/2009 | 3000 | 4 | |
| Upon applying the brakes when i hit rough road, pot hole, debris, unlevel pavement, they seem to slip. i don't slow down like i want the car to, i fishtail a little and the stability control comes on. this has happened 3 or 4 times since i purchased the car. 2010 toyota prius. *tr | |||
| 11/15/2009 | 800 | 3 | |
| When our 2010 prius hits a pothole and i brake, it lunges forward for a second. this has happened 3 times. *tr | |||
| 02/01/2010 | 7000 | 1 | |
| 2010 toyota prius ii stopping time longer than expected when in b gear and need to brake. note that i am not sure of the road surface when this occurred but i believe that it was flat. car seems to lurch forward. have come close to hitting car in front of me. dry road surface, close to 50 degrees f. *tr | |||
| 12/18/2009 | 1 | ||
| When slowing for a stop sign - i struck a bump in the road and the brake did not feel like it applied for a quick moment. it caused me to stop further in to the intersection than i expected, or would have liked. *tr | |||
| 08/10/2009 | 100 | 6 | |
| Braking problem noted with prius 2010. on uneven pavement while strongly braking, the car lurches forward for a moment, prior to finally braking (felt as though it was slipping until it caught the pavement again). this has occurred approximately 5 - 6 times since purchase 07/31/09. contacted service dept. in 2009 by phone, but they had no other complaints. at some level i was thinking it was just my imagination or some kind of high tech glitch that i had to live with. at servicing in january all systems were assessed without abnormality, although i did not formally complain about my brakes at that time. the issue remains, and i do believe that it is a safety issue, and that rear-ending another vehicle is a real possibility due to lack of control. *tr | |||
| 01/01/2010 | 1 | ||
| As owner of a 2010 toyota prius with about 10,000 miles on it, my wife (the regular driver) and myself have experienced an anomaly in brake operation on several occasions. each occasion involves either hitting a bump in the road while braking or being on wet pavement while braking. when this happens, if feels as if the brakes release for a fraction of a second (creating a short sensation of acceleration) and then resume operation. i don't think the car is actually accelerating in that moment. my theory is that while braking, a single wheel looses traction (and perhaps momentarily stops) and then the system releases all wheels for a moment before regular braking resumes. the fact that you are sitting in the car with your foot applying pressure on the brake makes this very attention getting. this has occurred several times since getting the car last august. *tr | |||
| 07/01/2009 | 1 | ||
| My 2010 toyota prius, purchased in july 2009, experiences braking problems on wet or slightly bumpy roads. when i hit the brake, the car jumps forward in these conditions. if i were tailgating the car before me, it could crash. *tr | |||
| 02/03/2010 | 6 | ||
| I have experienced brake issues about 6 times, and my wife has had it happen to her twice, since i bought my 2010 prius at the end of august 2009. the brake problem usually will happen when braking on an uneven surface such as a pothole or a bumpy road. the issue is that the brakes will momentarily stop working and you get a jerking/speeding up feeling. *tr | |||
| 02/04/2010 | 1 | ||
| Sometimes when i'm braking it feels like a surge in power of my toyota prius - 2010. *tr | |||
| 02/04/2010 | 6000 | 1 | |
| Brake failure - as i drive to work each day there is a place where i am turning onto a different road to get to work. as i approach the turn i brake to slow down and i always hit a bump in the road and/or a pothole close to the intersection. as i hit the area, my car shoots forward and it feels like i have lost my brakes. i can recover quickly by keeping my foot on the brake, but if i was closer to the intersection i could overshoot it and hit someone or someone could hit me. i mentioned it to the service manager when i got my first oil change at 5000 miles and he seemed very unconcerned and he said it was probably the abs brakes failing because the tire lost contact with the road. well i also have a 2002 highlander and have never had the problem with this car. *tr | |||
| 11/08/2009 | 9000 | 1 | |
| I couldn't stop my 2010 prius at a stop. the brakes wouldn't stop the vehicle.*tr | |||
| 01/21/2010 | 7000 | 1 | |
| Brakes fail momentarily when driving over potholes and bumps. *tr | |||
| 02/04/2010 | 1 | ||
| When driving over uneven terrain (ie.; railroad tracks, bumps in the road) my 2010 prius seems to accelerate. i read about the brakes failing... but it really feels like it is accelerating too. it is very scary when this happens as it feels that you will be thrushed into whatever might be in front of you. *tr | |||
| 12/28/2009 | 5100 | 5 | |
| I own a 2010 toyota prius purchased new in october 2010. i have had at least 5 instances of the brake failure that have been described in recent reports. the failure occurs when braking and going over a rough spot like a man-hole cover or pothole. there is a momentary and complete failure of the entire braking system. *tr | |||
| 01/15/2010 | 3000 | 8 | |
| 2010 toyota prius: after turning car on, taking emergency brake off, foot on brake pedal fully depressed, shifting from park into reverse, the car will begin to move on its own without me taking foot off brake. have to shift it back to park and turn it off for it to stop. toyota service said this is normal. has happened 8 times, most recent jan 15th. all on level surfaces. only happens if car is on in electric mode only, not with the engine on. *tr | |||
| 02/03/2010 | 1600 | 1 | |
| When applying brakes on 2010 prius (purchased in sept 2009), the car lurches forward when it hits a bump in the road. this is a reproducible behavior and has been observed since shortly after purchase. *tr | |||
| 08/20/2009 | 1 | ||
| My prius loses its braking ability when i hit a pothole or if i drive over a sewer grate. i've owned the car since july 2009, it is a 2010 model. it also happens when i drive over bumps in the road. this has happened several times since july. it seems to happen more in wet weather. *tr | |||
| 08/22/2009 | 500 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that the brakes were ultra-sensitive and while driving 5 mph in reverse and lightly depressed the pedal the vehicle lunged forward as if she made an abrupt stop. occasionally, she had to push the brake pedal extremely hard to stop the vehicle. she has not spoken to the dealer nor the manufacturer to-date. the vehicle had not been repaired at the time of the complaint. the current mileage was 3,740. the failure mileage was approximately 500. | |||
| 08/14/2009 | 2800 | 1 | |
| Pressing brakes while turning and hitting a pothole causes car to surge forward. *tr | |||
| 01/29/2010 | 1 | ||
| While driving on a slick road. i tried to brake and turn into a parking lot. brake pedal felt non responsive and car hit curb, knocking off the wheel cover and scuffing the rim. *tr | |||
| 09/25/2009 | 1 | ||
| Just wanted to add my two cents worth that the brakes on my 2010 prius aren't right. when i hit a pothole while braking, the car lurches forward a few more feet. it has almost put me into oncoming traffic a couple of times. this has happened numerous times. i purchased my car on august 28, 2009. please let me know when repairs and adjustments will be available to the public. *tr | |||
| 11/30/2009 | 400 | 1 | |
| I purchased a 2010 toyota prius iv in november of 2009. within a week of driving the car i was making a right turn at an intersection and drove over a pot-hole. within a second of hitting the pot-hole i felt as if the car slid forward without resistance rather than feeling it being slowed by the brakes. a few seconds later the car seemed to recover and feel normal. i experienced this two more times at the same intersection when hitting the same pot-hole. i also experienced something similar weeks later on a different road. my wife reported similar experiences 3-4 times. we felt this was caused by unfamiliarity with the cars traction control system. the recent news reports on toyota braking problems is making is reconsider. please note i pressed the submit button twice. the first one provided me confirmation number 10305515. i failed to notice an error with the model year. i entered 2009 instead of the correct 2010. therefore i submitted the complaint a second time with the corrected year. sorry for any inconvenience. *tr | |||
| 10/01/2009 | 5000 | 1 | |
| 2010 prius bought in july of 2009. similar problem to what is currently being investigated. when coming to a stop (usually from highway speed) on a road with potholes, the car will hit a pothole and will lurch forward, as if i had taken my foot off of the brake. so far, continued pressure on the brake pedal has always stopped me in time. *tr | |||
| 01/26/2010 | 1 | ||
| I own a 2010 prius and when stopping going over a reasonable | |||
| 01/18/2010 | 6500 | 2 | |
| I have a 2010 prius and on 2 different occasions i observed a brief lack of braking when i hit the brakes. the first incident came at a freeway speed of about 60 mph and i had to hit the brakes harder than normal as traffic ahead of me were braking due to an accident. the second incident came in a residential area traveling at around 35-40 mph and i had to hit the brakes hard as a vehicle turned on red in front of me. on both occasions the pause mirrored the descriptions that have recently been reported in the media. there is definitely a flaw in the brake design. *tr | |||
| 10/01/2009 | 800 | 1 | |
| I have a 2010 prius and i have experienced frequent braking loss when driving over bumps while braking. the brakes release momentarily. i have experienced this many times!! it is definitely dangerous. *tr | |||
| 11/01/2009 | 1 | ||
| Every time my car hits a pothole, speedbump while braking the car fails to respond and results in a forward lurch almost causing collisions and safety hazards for drivers with this car. every single time while braking and hitting uneven pavement, potholes, speedbumps etc. *tr | |||
| 07/31/2009 | 200 | 1 | |
| My brakes quit working if a brake on loose gravel or when i hit a bump at low speeds. seems like the abs is trying to work but fails to kick on. *tr | |||
| 11/30/2009 | 400 | 4 | |
| I purchased a 2010 toyota prius iv in november of 2009. within a week of driving the car i was making a right turn at an intersection and drove over a pot-hole. within a second of hitting the pot-hole i felt as if the car slid forward without resistance rather than feeling it being slowed by the brakes. a few seconds later the car seemed to recover and feel normal. i experienced this two more times at the same intersection when hitting the same pot-hole. i also experienced something similar weeks later on a different road. my wife reported similar experiences 3-4 times. we felt this was caused by unfamiliarity with the cars traction control system. the recent news reports on toyota braking problems is making is reconsider. *tr | |||
| 02/02/2010 | 4850 | 1 | |
| In snowy weather i tried to stop on slippery payment at slow speeds at a four way stop. the brakes let go for a few seconds before reconnecting. this has happened several times before on bumpy or slippery pavement. it never lasts for long, but it does increase stopping distance. *tr | |||
| 11/15/2009 | 5000 | ||
| Tl* the contact owns a 2010 toyota prius. while the contact was driving 20mph the contact attempted to brake and noticed that the brakes would not engage for a short period. the vehicle was taken to the dealership where the contact was informed that the failure could not be reproduced. there were no prior warnings and the current and failure mileages were 5000. | |||
| 02/03/2010 | 1525 | 1 | |
| When approaching a stop sign and applying the brakes over a rough stretch of pavement, the brakes stuttered or seemed to momentarily fail and then catch again with continued pressure on the brake pedal. car lurched forward when this happened. this has happened twice at the same intersection. *tr | |||
| 02/04/2010 | 1 | ||
| Like many others, i too have experienced the brake problem with the 2010 prius. when going over a pothole (while using the brake), the brake fails momentarily and the car lurches forward. *tr | |||
| 12/15/2009 | 2500 | 1 | |
| I have a 2010 toyota prius purchased 2 november 2009 that is having the braking problem on an intermittent basis. sometimes when braking, the car will lurch forward when it should be coming to a stop. it happens just before i expect it to stop, and have compensated by braking more slowly in anticipation of stops. i worry about what would happen in a sudden, emergency stop, however. thank you. (the date below is just to complete the form; you should have a category for intermittent problems that aren't tied to a particular date.) *tr | |||
| 02/02/2010 | 5000 | 1 | |
| I bought a toyota prius v 2010. i have complained to toyota about the braking system. i am also filling a formal complaint with nhtsa. also the back auto dimming mirror doesnt work properly. they cant find a fix. lane keep assist works really poorly. i would say i doesnt work! also bluetooth systems doesnt work properly. there is a delay in answering the call. *tr | |||
| 01/30/2010 | 100 | 8 | |
| I have had the 2010 prius for 2 months now. i have experienced the brake failure when going over potholes (which there are many of in los angeles) about 8 times in the last 2 mos. over a pothole, i step on the brake and instead of braking my car actually accelerates a little, as if the pothole is pushing me forward. it's a loss of control over the vehicle for those 1-3 seconds, and if another car were in front of me no doubt i'd hit it as the brakes fail. i thought it was a problem with just my car until i read the news today. *tr | |||
| 01/26/2010 | 3000 | 1 | |
| When traveling over a pothole or bump in the road during brake application of my 2010 prius, i sometimes lose braking power and the car will lunge forward or seem to accelerate. it's scary but thankfully i've been far enough away from the car in front of me that i haven't hit it. i didn't know whether to report this until i heard of the complaints that you were receiving and realized that it was a major problem. *tr | |||
| 12/05/2009 | 2000 | 6 | |
| On about 5 or 6 occasions, i have experienced a momentary loss of braking capability in my 2010 toyota prius, which i purchased in november, 2009. no injuries or accidents of any kind have occurred and the loss of braking was for only a second or so, but when i read the reports today of nhtsa's investigation i knew that what i had experienced is exactly what has been described by others. this incident has occurred when braking at a relatively low rate of speed (25mph or less) over a bumpy, uneven surface in which both front tires are going over the uneven surface. the brake pedal depresses as normal and the brakes begin to work, but at the moment of contact with the bumpy area the brakes stop working momentarily, causing the vehicle to begin moving forward quickly for just a second. it feels almost like the vehicle is sliding or speeding up for just a second before resuming a descent in speed. i absolutely love my prius and in all other ways it is a great vehicle, but i did feel it was important to report this incident given your ongoing investigation. *tr | |||
| 01/15/2010 | 10000 | 3 | |
| I have a 2010 prius. on at least three occasions, in the last six months, the following has occurred. when i am traveling and i apply brake pressure the vehicle begins to accelerate. no matter how hard i press on the brake pedal it does not slow down or stop the vehicle. it actually begins to speeds up while my foot is pressing down on the brake pedal. the acceleration has only lasted approximately 5-6 seconds. however, it is very frightening when you are traveling at a high rate of speed and trying to slow down especially off a freeway off ramp. the last thing you want to do at that time is accelerate even if it is momentarily. this has occurred in various places. it has happened while i am getting off of the freeway and on city streets. there was nothing i did in particular that corrected the failure. the prius just stopped accelerating on it's own. *tr | |||
| 09/01/2009 | 3000 | 1 | |
| My 2010 prius hybrid has a problem in certain instances when i apply the brakes. the first time it occurred was when i was applying the brakes to stop in front of my home. there were wet leaves in the street and when i applied the brakes, there was a moment when nothing happened. then it felt as if the abs system actuated and momentarily the brakes locked up and the car started to skid, then the abs took over and the car came to a stop. truthfully i was frightened. i have owned the vehicle since september, 2009 and this has occurred several times. i was lucky one time when it happened in traffic when the vehicle in front of me stopped suddenly. i was sure i was going to hit the other vehicle but it moved forward far enough so that i did not hit it. i have noticed that it occurs most often when the street or highway is rough or bumpy in the area where i am braking. it is especially treacherous here in minneapolis when the streets are slick from snow or ice. i certainly have learned to give the other car plenty of room so that i will have time to brake. however there are occurrences, such as 4-way stop signs, where it is almost impossible to allow enough space. *tr | |||
| 02/04/2010 | 451 | 1 | |
| My 2010 toyota prius brake problem: to begin driving my prius from a stopped position one releases the brake pedal before pressing the accelerator pedal. quite often when attempting to release the brake pedal on my prius there will be an instant jerk and any vehicle movement appears to be dead locked. after several attempts it will then appear to straighten out and then driving is ok. considering my driving habits, this is very much a safety problem for me, and also i don't trust the car. *tr | |||
| 01/28/2010 | 1800 | 1 | |
| 2010 prius did not stop even though i pressed brake hard enough to make my foot sore. brakes had been squealing slightly since i purchased car on 12/30/09, but i thought it was the cold. *tr | |||
| 08/15/2009 | 200 | 1 | |
| 2010 prius - confirming reports about brake failure. at the company i work, there are rumble strips leading to a gate when departing the grounds. i have learned to slow way down before hitting the rumble strips because i almost hit the bar that rises at the gate the first few times after purchasing the car last summer (2009). the brakes briefly fail then kick in again. have not been on rough terrain but i'm sure this would occur similar to the rumble strips. *tr | |||
| 12/17/2009 | 5000 | 1 | |
| We purchased a 2010 prius in june and took it in for servicing in december. at that time we reported exactly the same problem that is now in the news -- when braking at low speed the vehicle occasionally lurches forward for an instant before slowing down. at the time we reported it, the dealer said that it was just the transition from electric to gas at the moment we applied the brakes. it now appears to be a more serious problem so i am writing to add our experience to your files. this problem does not happen often, but it is unsettling when it does since the driver does not expect the car to accelerate, even momentarily, during braking. in a tight situation or heavy traffic, this could easily cause an accident. so far when it has happened, there have been no consequences, but it is something we worry about. the date below is the date we reported the problem to our toyota dealer. *tr | |||
| 11/13/2009 | 5000 | 3 | |
| Three separate occasions of momentary loss of braking going over rough surface (two different locations) on dry asphalt. each time the braking resumed after a short moment, as the brake pedal was kept pressed. when the brakes went out, it felt as if the car started lurching forward, causing momentary panic with the driver and the passengers. luckily there was still time to get to a complete stop before impact. *tr | |||
| 02/04/2010 | 3000 | 10 | |
| 2010 toyota prius brake problem. this occurs when hitting a brake when on some sort of rough road area, like a pothole or a bump. it feels like either the brake isn't engaging or it's speeding up. it's hard to tell. either way, it's scary and it can cause an accident. for instance, if you're driving in manhattan and you hit a pothole as you brake with a car in front of you. (i was lucky when this problem kicked in and i hit that pothole as there was no car in front of me at the time.) this problem has happened to me close to 10 times now. please note that this has happened numerous times. it happened within a couple days of when i got the car. i didn't see brakes on your list of parts that were defective. i did see service brakes in 3 categories, but i didn't know if service brakes was some special meaning, nor did i know which kinds of brakes had the problem (or even which kind the car has). *tr | |||
| 01/27/2010 | 1800 | 1 | |
| I have noticed the temporary loss of braking in my brand new 2010 toyota prius purchased in december 2009. when braking on uneven ground, if you hit a pothole in the road the car lurches forward and it feels like you hit the accelerator. please encourage toyota to address this issue. *tr | |||
| 02/04/2010 | 2525 | 1 | |
| The following describes exactly the problem: .... momentary loss of braking capability while traveling over an uneven road surface, pothole or bump. i've had this happen several times since i purchased my prius in nov 2009, most recently this morning on the way to work (going down hill!) on the road. i've never hit anyone or anything but the risk of that happening is there and must be addressed with a recall & repair. *tr | |||
| 12/09/2009 | 9000 | 3 | |
| 2010 prius with abs problem. on uneven surfaces (i.e. potholes) or icy roads i have not had 3 events where the brakes were not effective. one situation was so bad and almost caused a serious accident under snow/icy conditions that i brought the car to toyota immediately. i have a service record of that in mid december 2009. the service department kept my vehicle for a couple days and did icy road testing but never fully recreated the situation. i have documentation from the service department on this despite their not acknowledging a problem. i have a lot of recollection of the details leading up to the 3 scenarios that have occurred now and can likely give good insight. btw, from the stories i read today in the press i think toyota (and the stories) have the problem mostly described. i still have other concerns based on my experiences from the 3 events. *tr | |||
| 01/30/2010 | 2000 | 1 | |
| On my 2010 toyota prius ii (purchased 9/30/2009, i have noticed on multiple occasions that while i am braking, if i hit a pothole, bump or rough pavement of some type, the braking suddenly releases for half-a-second or a second. i am maintaining pressure on the brake pedal but with a bump, it stops braking momentarily. because i tend to give myself a lot of room to brake, none of these incidents has led to an accident, but it is very disconcerting. *tr | |||
| 12/20/2009 | 3700 | 1 | |
| I have experienced braking issues with a 2010 prius purchased in july '09. while braking on ice or snow when first depressing the brake pedal for light braking nothing happens, no braking. when then depressing the brake pedal more firmly braking then starts suddenly but more aggressive than desired. this problem occurs on ice or snow only but i have not driven on extreme washboard or gravel roads. i have had the experience more than once and have begun to anticipate it happening regularly on ice or snow. *tr | |||
| 09/13/2009 | 17000 | ||
| Tl*the contact owns a 2010 toyota prius. the vehicle lunged forward and accelerated while the contact was driving approximately 20 mph and attempting to engage the brake pedal. the vehicle was diagnosed by the dealer who confirmed that it responded normally since the electrical engine switched over to the gasoline engine. the contact observed that the malfunction occurred continuously. the vin was not available. the failure mileage was 17,000. | |||
| 02/02/2010 | 400 | 1 | |
| I am the owner of a 2010 toyota prius purchased new on january 21, 2010. car has about 400 miles on the odometer. on february 2, 2010 while attempting to stop at a stop sign, traveling at a slow rate of the speed, the brakes failed to stop the car. after several attempts to apply the brakes, they finally stopped the car narrowly missing cross traffic. the pavement was smooth and speed was less than 25mph. *tr | |||
| 08/05/2009 | 100 | 1 | |
| I own a 2010 prius purchased in july 2009. i have also (regularly) felt a surge forward when braking and hitting a bump or pothole. based on my readings of chat boards i thought this was normal, although it is quite alarming when it happens. i'm not confident that my local toyota dealer would be entirely honest; when i was in for service during the floormat brake recall i overheard a service manager telling a customer it was nothing to worry about; it was only when people put non-manufacturer's floormats on top of the toyota ones that there was a problem (which is not my understanding). i'd like to be kept informed of the status of the investigation if at all possible. i'll put in early august as the incident date but it happens regularly (at least once a week?) *tr | |||
| 01/20/2010 | 1500 | 3 | |
| I have had my 2010 prius for about 45 days, and on three occasions while traveling over bumpy surfaces and very firmly applying the brakes, i noticed a lack of stopping power for about half a second right after i hit a bump. they weren't tiny bumps, but they weren't craters either. the traction of my tires did not seem to be impaired. it felt like the brakes just let off for a fraction of a second. *tr | |||
| 12/19/2009 | 8000 | 12 | |
| I've experience braking problems with my 2010 prius. as others have reported i too have had at least a dozen incidents in which i am applying the brakes and there is either a bump in the road or more often a pothole. usually this has been when i was approaching a stop sign and braking moderately. the experience is such that the brakes seem to disengage at the time in which i hit the pothole or bump and the car lurches forward for just a split second. to me it feels like going over an ice patch and the sensation is similar to hydroplaning as well. this has not caused any accident but does contribute to a feeling of lose of control and causes you to possibly stop a little later than you intended to. i have 10,000 miles on this car and have had it since august 2009. i also experience another braking issue. sporadically when i start the car and the engine has not come one and the car is only using battery, the brakes seem to have no play in the pedal. the car starts to move and when i tap the breaks they just lock with a thud and the pedal goes all the way to the floor. i then re step on the brakes and they work properly and feel normal. this usually happens in my driveway or parking lots and my first reaction is that i hit something because the car slams to a stop. *tr | |||
| 10/01/2009 | 100 | 1 | |
| Toyota prius 2010. problem reported to dealer 12-18-2010. brakes become inoperative when passing over uneven surfaces, vehicle also at this time vehicle lurches forward. this occurs frequently. contrary to your form requirements there is no one approximate incident date. shifter sometimes is difficult to put into neutral, rather it will instead go from drive to reverse. if there is also a sudden acceleration problem, this could be a big problem when trying to regain control. *tr | |||
| 11/01/2009 | 100 | 1 | |
| Brakes on 2010 prius sometimes are jerky. the pedal feels different and i require less or more pressure to get the car to brake. occasionally when i press the brake the car jerks to a stop instead of a slow, controlled stop. i have been driving for over 20 years & the feeling is similar to how i felt in learning to drive when i didn't know how much pressure to use on the brake pedal. bought car in october 2009 - problem noted about 10 times since that date. *tr | |||
| 02/02/2010 | 1130 | 2 | |
| Prius 2010 skidded at slow speed on cold roadway twice. just purchased the car in october. *tr | |||
| 09/01/2009 | 500 | 1 | |
| I purchased a 2010 toyota prius (model v) in august 2009 and have had issues with the brakes ever since then. when driving on rough or uneven pavement, if i depress the brake to slow down, the car seems to skid or almost shoot forward instead of braking. the end result is that instead of immediately stopping, the car ends up sliding for about a second before stopping, which could obviously lead to an accident given the extra distance the car is traveling instead of braking immediately. after this happened repeatedly on a street near my home in san francisco, i took the car to the toyota dealer from which i bought it on november 24, 2009 (city toyota in daly city). after evaluating the car overnight, they gave me a written report (a copy of which i'm happy to provide) and told me that it had something to do with the antilock brakes but said it was a normal characteristic of [the] vehicle. note that while they were looking at my prius, they gave me another loaner 2010 prius (model iii) and that car had the exact same issue (also noted on their written report). after listening to the news and seeing an article this morning where toyota admitted there were braking issues with 2010 prius cars made before january 2010, i became extremely concerned about the safety of my car and potential for an accident. i also understand that there are over 100 complaints for the same issue and want to add my experience to that list to ensure that toyota does a proper recall of my 2010 prius to fix the issue. i'm also extremely annoyed that i was told by a dealer that this was a normal condition only to find out now that it's absolutely not normal and that there are a significant number of individuals that have experienced the same problem, some of which have caused accidents. i just want the problem corrected. *tr | |||
| 01/13/2010 | 4000 | 1 | |
| I have a 2010 prius and am also having brake problems. the brakes intermittently seems to slip for a couple seconds. it seems to happen at low speeds, on hills, and in the middle of the time i am pressing on the brake. it has happened both while continuously pressing the brake and also as i ease off the pressure on the brake. the behavior is occasional, but recurring. *tr | |||
| 01/29/2010 | 6500 | 1 | |
| Momentary loss of braking when passing over bump in road while braking for stop light. third time i have personally witnessed this momentary loss of braking. *tr | |||
| 08/24/2009 | 500 | 1 | |
| We took this statement from the nhtsa press release with today's date, which is a 100% accurate description of our problem: momentary loss of braking capability while traveling over an uneven road surface, pothole or bump this is not a one-time event as we've noticed it happening numerous times since purchasing the prius in august 2009. the hesitation we've experienced usually occurs when driving down a steep hill or passing over a pothole. *tr | |||
| 12/15/2009 | 7500 | 1 | |
| Whenever i hit a bump while applying brakes on my 2010 toyota prius, the brakes stop working for a short interval (about a second). i first noticed this issue about two months ago while driving to a doctor appointment. there was a small, unavoidable pothole about 200 feet before a traffic light. the light had turned red, and i was braking as i hit the pothole. to my surprise, my prius lurched forwarded nearly hitting the car in front of me. fortunately, the brakes re-engaged as i attempted to brake harder. i have had to travel that same road 3x a week for the past two months, and the problem is consistent and occurs every time i hit that bump when braking. i have since noticed it at other times, always when i hit a bump and am braking. the braking lag is substantial enough to have almost caused me to get in an accident on several occasions. the bumps that have triggered it have not been anything outside of what is very common to driving. i have called the dealership, and they acknowledge that there is no repair offered at this time (but claim that they expect one in a few weeks). they have offered me a rental car for a few weeks. *tr | |||
| 02/04/2010 | 100 | 1 | |
| My current 2010 prius has the jump issue with the brakes, but this is not the first time that this has happened with the prius. my 2002 prius had the same issue, and i was not the only one. i was a member of a prius yahoo group, and this was a topic of discussion for a while. so while i do feel the jump i just thought it was part of the prius experience. whenever i drive over a pothole, it feels like the car is trying to jump it. when hitting the brakes, it feels like there is acceleration for just a second. this is not an intermittent problem. it happens every time. *tr | |||
| 01/31/2010 | 2000 | 1 | |
| My 2010 toyota prius lurches when going over a rough patch of road while i'm using the brakes. there is a particular patch of road near my home where this has happened repeatedly. *tr | |||
| 08/21/2006 | 4000 | 1 | |
| 2010 prius brake problems. *tr | |||
| 02/04/2010 | 390 | 1 | |
| When slowing to a red light on md 212 at us rt 1 in beltsville, md, my 2010 toyota prius rolled over a bumpy stretch of road and the regenerative brakes stopped braking. the car rolled forward in free wheel fashion until i stomped on the brakes hard at which point the friction brakes kicked in and stopped the vehicle in time to avoid an accident with the vehicle in front of me. the traction control indicator lamp lit, and remained lit until i released the brakes to accelerate when the light turned green. seems to be the same problem everyone is reporting in the news this morning. i've had the car 1.5 weeks, and this is the first time i've noticed the problem, although my wife claims it happened to her during our test drive. *tr | |||
| 10/01/2009 | 3000 | 1 | |
| I have noticed an issue with the brakes not working for a second when i am going downhill in the parking garage, and going over a speed bump, when i go over the bump while the brakes are slightly pressed, it momentarily loses braking after going over the bump. i think it is an issue with switching from regenerative braking, to regular mechanical braking. i am able to repeat the issue consistently in one location in a parking structure that i park in. i noticed it around oct 2009 and have been noticing it since then. *tr | |||
| 08/20/2009 | 250 | 1 | |
| I have a 2010 toyota prius. when i am braking and i happen to hit a bump in the road, my car lurches forward while my foot is on the brake. i have not had an accident, but it has been close a couple of time. this began happening almost immediately after i bought the car. i bought it in july 2009. incidents occurred between august 2009 and continue through the present. p.s. i don't know what type of brakes they are: air, hydraulic or electric - i just picked one. *tr | |||
| 07/20/2009 | 500 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that while driving 10 mph and engaging the brake pedal, the vehicle briefly accelerated on its own and the brakes malfunctioned. the failure has occurred 10 times since the vehicle was purchased. the dealer was contacted and they stated that was a safety feature. no repairs were made to the vehicle. the failure mileage was 500 and the current mileage was 4826. | |||
| 10/01/2009 | 5 | 1 | |
| I have a 2010 toyota prius purchase in 9/2009. when i slow down to stop and go over a bump it feels as thought the power breaks go out and the vehicle surges forward. this has occurred since we purchased the vehicle. the original explanation was that we just need to get used to the transition from gasoline power to electric power. however, i don't feel that is sufficient as it is a very dangerous surge. *tr | |||
| 09/15/2009 | 400 | 1 | |
| Our 2010 toyota prius has experienced the loss of brake action, or the sensation of speeding up, when going over a bump, occasionally around corners and on uneven surfaces. *tr | |||
| 01/09/2010 | 10000 | 1 | |
| I have a new gen iii 2010 prius ii and have noticed that when braking the car seems to surge forward before decelerating when i hit a series of bumps or a pothole. it is un-nerving in that even at slow speeds like when coming to a stop at a stop light, the car wants to continue forward with an uncontrolled burst. i have changed my driving slightly to give my self move stopping room, but sometimes there is a series of bumps in the road and it just happens. i have 10,000 miles on the vehicle and this has happened about 8 to ten times to me, usually when i'm not expecting anything to happen but a slow braking stop. as an incident date is requested, i am putting in just one of the dates that this occurred, i have not kept a record of the days, travel conditions, or times that the incidents occurred. this happens everytime my wife drives over a particular set of train tracks near where we live. also this of course has happened over time and the mileage given is actually from the day we got it till now, this is an on going event. *tr | |||
| 07/02/2009 | 20 | 1 | |
| My 2010 toyota prius was purchased in july 2009. when i try to brake on a bumpy road the brakes fail and the car actually momentarily accelerates. *tr | |||
| 01/01/2010 | 200 | ||
| Tl*the contact owns a 2010 toyota prius. while approaching a driveway at speeds under 10 mph and making a left turn, the brakes failed momentarily. within seconds the brakes became to function normally. the dealer was notified and the contact is awaiting repairs. the failure and current mileages were under 200. | |||
| 07/22/2009 | 600 | 1 | |
| 2010 toyota prius. car seems to surge forward when braking on rough pavement such as potholes. also happened once on a wet day when a front wheel slipped on the painted stop line before an intersection. we took delivery of the car in june 2009 and the first incident was in july 2009. *tr | |||
| 11/15/2009 | 3500 | 3 | |
| On three occasions, my 2010 prius leapt forward when i drove over a man-hole cover. i have read the description of the braking issue on the 2010 prius and it sounds exactly like my experience. it only lasts for a fraction of a second, but it is quite frightening when it happens. *tr | |||
| 12/09/2009 | 5013 | 1 | |
| When driving my car the brakes don't always seem to respond immediately. occasionally, but no always, the car will fail to brake when pedal is depressed and seems to move forward faster before finally braking. it is sporadic and when i first asked a dealership they said i was just unaccustomed to prius braking systems and that over time i would become more familiarized. this has happened several times and each time the vehicle was at a low velocity = 35mph. *tr | |||
| 08/13/2009 | 540 | 1 | |
| Loss of braking capability on rough surface or bumps. *tr | |||
| 02/03/2010 | 2000 | 1 | |
| 2010 toyota prius. brakes would not work at low speed when approaching an intersection covered with sand/ gravel from recent snow abatement work. car rolled through stop sign. *tr | |||
| 11/07/2009 | 300 | 1 | |
| I bought a 2010 prius v on 10-31-09. on several occasions, i have experienced the temporary loss of braking now making news. i've noticed it at least a half dozen times on snowy or icy roads. mistakenly attributing the zero slowing to being on black ice, i pumped the brakes. the brakes immediately took effect and slowed the car. the immediate response upon pumping the brakes, plus the number of times this has happened in just the handful of times i've driven on slick roads, tells me it wasn't black ice at all. please do something about this. thanks. *tr | |||
| 08/10/2009 | 500 | 3 | |
| This is in reference to my 2010 toyota prius which has on several occasions exhibited the momentary loss of braking when the pedal is depressed and i hit a bump. this has occurred three separate times since july of 2009 when i purchased a new prius from sunrise toyota in oakdale ny. *tr | |||
| 02/04/2010 | 3000 | 4 | |
| 2010 prius braking issue. i have felt the loss of braking while going over potholes atleast 4 times since i have owned my 2010 prius since last year. *tr | |||
| 12/01/2009 | 1 | ||
| When braking at slow speeds and on bumpy roads, the car will surge forward a bit rather than stop as expected. *tr | |||
| 10/01/2009 | 500 | 15 | |
| Problem vehicle: 2010 toyota prius purchased in september 2009. when foot is on or off brake at speeds < approx 45 mph, and a large bump/pot hole/etc is traversed, the brakes fail for about a second (which feels like an uncontrolled acceleration). for that second the car is uncontrolled. this has happened at least 15 times since september 2009. this is especially dangerous is sudden braking is required or road conditions are hazardous. *tr | |||
| 02/04/2010 | 1200 | 1 | |
| I purchased a 2010 toyota prius in december 2009. i live in duluth minnesota where the streets are hilly, bumpy, and often icy. at least twice a day, as i'm coming down a hill toward a stop sign and apply the brakes, i notice the brakes seem to give out (i.e., cease to function) for a brief interval, perhaps a second or two. during this brief interval, the car seems to surge forward. i reported this to the dealer this morning and they said no fix is yet available. *tr | |||
| 12/01/2009 | 2000 | 1 | |
| Under certain conditions my 2010 toyota prius momentarily looses its brakes. i took delivery in october, 2009. *tr | |||
| 01/13/2010 | 6000 | 1 | |
| Braking does not occur immediately on occasion on toyota 2010 prius. traction light even comes on as if you are skidding. this has occurred several time for me since owning the car in sept 2009. i have had a prius from each generation (this is my third prius) - this did not occur in those. did call dealer on this. exact dates not kept but will put an estimate of last time below. *tr | |||
| 02/02/2010 | 1200 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that the brakes were ultra-sensitive and when she lightly depressed the pedal, the vehicle would jerk as if she made an abrupt stop. other times, she had to push the brake pedal extremely hard to stop the vehicle. she called the dealership and was told that it was not a problem. she had not contacted the manufacturer to-date. the vehicle had not been repaired at the time of the complaint. the current mileage was 1,218. the failure mileage was approximately 1,200. | |||
| 12/11/2009 | 6000 | 10 | |
| During the first snowfall in dec 09 i was driving my wife's 2010 prius because i wanted to take this new car out to see how it would perform in icy conditions. as i approached a roundabout/traffic circle at less than 10 mph the brakes did not respond at first. i nearly rear ended the suv that was stopped at the circle. the ground was covered in ice. i had to spin the car at an angle to avoid hitting the suv. i am now reading that other people have had the same problem. i read that toyota has addressed that there is a problem but has not issued a recall. i have experienced brake slippage/not engaging when first pressing on the brakes 6-10 times with this car. applying the brakes over potholes seem to have the same effect but it seems more dangerous that this happens on icy roads since i live in the frozen tundra of green bay wisconsin. *tr | |||
| 11/25/2009 | 4000 | 1 | |
| Our 2010 prius bought in october 2009 failed to stop in time and got into an accident in november 2009. we had suspected a brake issue since we bought the car but were not concerned until now that toyota has acknowledged this issue with brakes, we want toyota to fix this issue and issue a recall. *tr | |||
| 01/25/2010 | 350 | 2 | |
| I purchased a 2010 prius on january 18, 2010. within 1 week of the purchase, the car had hydroplaned two times. each time, i thought i had hit black ice as there had been rainy/cold conditions that evening.the feeling i had was that the car surged forward momentarily as i was driving slowly or slowing down. these 2 incidents happened within a mile of each other. i was driving very slowly at the time. i called the dealer, northbrook toyota, and reported the problem to the salesman. the problem happened again a week later when the surged forward as i passed over what looked like a slick sewer cap. *tr | |||
| 02/01/2010 | 11820 | 1 | |
| I have a 2010 prius and am having braking problems when driving over pot holes, bumpy services, or down hills. the 2010 prius releases the brakes when driving over these surfaces and has becomes dangerous to me and my family. i also live on a rather steep hill and when traveling down the hill any debris on the surface of the road such as leaves causes the brakes to give way. please help please help. *tr | |||
| 09/01/2009 | 300 | 1 | |
| I have noted a braking issue with my 2010 toyota prius v equipped with a navigation system. the brakes do stop the car, but seem to delay stopping the car after the applying the brake. the car was purchased in august 2009. i have not been contacted by toyota. *tr | |||
| 08/13/2009 | 1000 | 1 | |
| I purchased my 2010 prius on august 4th, 2009 and almost immediately noticed issues with the brakes. i distinctly remember driving in the car on this date with my wife as we were on our way back from her ultrasound. i just got off the highway and there was a red light ahead with several cars stopped at it. i applied the brakes slowly and steadily, as i normally do, braking with plenty of time to stop. as i approached the last car at the stop light i encountered a pot hole and the brakes disengaged. i could feel the car was no longer decelerating. i had to slam on the brakes and barely avoided slamming in to the car ahead of me, stopping with literally an inch between our bumpers. since that date i have encountered this exact same scenario several times a month and have come close to an accident 2 to 3 times. *tr | |||
| 05/15/2009 | 1 | 1 | |
| I own a 2010 prius and purchased in 5/2009. i simply want to confirm that the brakes seem disengaged when going over bumps and stutter bumps, and this is short lived. for me, this was not enough of an issue to initially complain. however, i could see that if there was a series of stutter bumps, i might lose braking altogether. *tr | |||
| 02/02/2010 | 340 | 1 | |
| Brake was not working when applied trying to slow down on a snow covered frozen road at about 25mph. it's not for a stop or sudden braking. *tr | |||
| 11/10/2009 | 100 | 40 | |
| I own a 2010 toyota prius. when i apply the brakes, the car jerks forward before stopping. i am very concerned about the software problem in the abs system and want the nhtsa to demand that toyota fix the 2010 prius brakes. the problem with the jerking brakes happens frequently, and has happened at least 40 times over the past 4 months. *tr | |||
| 01/02/2010 | 10000 | 2 | |
| My 2010 prius loses braking for a split second when going over a pot hole. i've noticed this a couple of times. *tr | |||
| 01/13/2010 | 1 | 1 | |
| 01/13/2010 - i went to the service dept at toyota of wallingford to complain about the loss of brakes in a new 2010 toyota prius while driving over uneven ground. i had owned the car one month with 1500 miles on the odometer. the loss of control of the car is terrifying because the car seems to accelerate forward. the service attendant was aware of the issue and described the situation. he took the car on a test drive. he assured me it was not a safety issue. *tr | |||
| 02/03/2010 | 5000 | 1 | |
| Sometimes when our 2010 prius hits a pothole, ice chunk or other bumpy road conditions we will very temporarily lose braking power. it seems to occur as the traction control or anti-lock kicks in. this has not been a one time incident, but also does not occur every time. *tr | |||
| 11/06/2009 | 100 | 5 | |
| On five separate occasions, when applying the brake to stop at an intersection the car would initially begin to slow down and then, while the brake is still being applied feel like it skipped or accelerated for another 10-15 feet before stopping. the term scary could be applied to the sudden feeling of having the car accelerate when the brakes are being applied. *tr | |||
| 01/03/2010 | 1500 | 1 | |
| While braking on a downhill road and approaching a signal light, i hit a pothole and the momentarily lost braking power and the vehicle lurched forward. i continued to apply the brakes and they engaged again. fortunately, i was decelerating and there were no other vehicles in front of me. i concerned that this could occur again with other consequences. *tr | |||
| 02/03/2010 | 3000 | 1 | |
| Since buying a 2010 prius in june, i have experienced three surging events while braking as i decended hills. two involved situations involving hitting road depressions, which almost caused me to go through traffic lights, one involved a road covered with 1-2 inches of snow, which almost propelled me into oncoming traffic at a stop sign. all situations occurred as i was descending hills and slowing speed by braking. the first incident occurred in the summer, the last yesterday. i reported this to my dealer, who had no information on it from toyota, but advised me to file a complaint with toyota, which i did, case #1002106542. *tr | |||
| 12/09/2009 | 3500 | 1 | |
| 2010 prius: when applying braking pressure on slippery pavement there is a noticeable lag before braking action occurs. this can also occur on gravel roads on washboard surfaces. *tr | |||
| 01/10/2010 | 2100 | 1 | |
| Purchase 2010 prius in nov 2009. on smooth highway ( ny lie ) traveling 70mph to pass a car. gently applied brake to slow down but the prius lurched forward for 2-3 seconds ( 200 - 300 feet ). almost hit car in front of me. *tr | |||
| 02/01/2010 | 9900 | 1 | |
| Slowing down while approaching a left turn lane, hit a pothole and lost braking power for about 0.5s. *tr | |||
| 01/24/2010 | 500 | 1 | |
| As i was applying my brake my car went over a bump, most likely a man hole cover, for a split second i felt like the brakes stopped working, then it went back to normal. *tr | |||
| 01/10/2010 | 6500 | 2 | |
| Incident 1: weather condition - cold and dry. road condition - bumpy, washboard just before a stop sign pressed on brake pedal, car slowed until washboard section of road came up, then brake seemed to disappear briefly and then car stopped. very frightening. if there was someone in front of me i would have hit them. no injuries, no crash. incident 2 weather condition: snow, snow falling, 1 on roadway. location: parking lot. came around corner very slowly due to weather conditions. abs came on early when applying brakes and the brakes appeared not to work for a brief time and then they worked but stop was much longer than it should have been. i almost hit a wall. *tr | |||
| 01/01/2010 | 5000 | 1 | |
| Toyota prius accelerates after hitting potholes. cannot slow vehicle as brakes don't work immediately. this problems is random and does not occur on a regular basis. *tr | |||
| 02/01/2010 | 8200 | 1 | |
| I am experiencing a loss of braking power, during slower speed stops or attempts to slow down. the problem occurs at generally less than 20 mph. i apply the brakes and the car begins to slow, however, if i hit a bump or pothole, the car feels like it is accelerating and/or losing braking power, despite my foot remaining on the brake pedal. i am able to regain braking by further pressing the brake pedal. the acceleration/loss of braking feels like it's coming from the rear wheels of the car and at least in my experience feels like the problem only occurs when the rear wheels go over the bump or into the pothole. a similar loss of braking has not occurred when the front wheels go over bumps or potholes at lower speeds. the braking lapse causes my stopping distance to be lengthened. this loss of braking power has occurred several times since i bought my car in july 2009. i first noticed the problem in the fall of 2009 and it most recently happened this past monday (2/1/2010). the problem does not appear to occur at higher speeds, such as on a highway or main road. i was not carrying any cargo or additional weight in the vehicle during any of the incidents. *tr | |||
| 02/04/2010 | 7500 | 1 | |
| Braking power momentarily stops when hitting a bumpy surface such as pot hole or uneven road surface. even pressure causes momentary loss of braking power but power returns after a second and braking resumes. *tr | |||
| 01/29/2010 | 500 | 4 | |
| Brakes suddenly lurch, especially when there is snow or uneven surface (pothole), first not catching and then causing brief more sudden braking. this is as if the abs is not working properly. this has happened about 3-4 times since purchase of car about 12/5/09. *tr | |||
| 02/02/2010 | 4000 | 1 | |
| I have a 2010 prius iv and can certainly say that i have felt several times a bit of brake-loss on this vehicle. by that, i mean that at times i have to push down much harder on the brake pedal to come to a stop. this happens at random times and causes me a bit of nervousness as a few times i came close to hitting the car in front of me. this tends to happen as i am coming to a stop, not during high-speed braking. i would estimate that this has happened at least 10 times during 4,000 miles of driving. *tr | |||
| 01/30/2010 | 5000 | 1 | |
| I have a 2010 prius, 3d gen, basic pkg. five days ago, i rear-ended a car stopped on an entrance ramp to rt. 15 in nj. i hit the brakes -- and the car shuddered forward as if its wheels had seized up. this prius has had intermittent braking probs since i bought it last august. usually, this happens on a rough road or during a sudden deceleration. the brakes feel as tho they've locked, and the car almost bounces to a stop, rather than braking quickly and smoothly. i told the dealer -- and they told me nothing was wrong (inferring it was my problem -- that i'm a lousy driver.) i reported the brake problem again after this accident, and was told again there was no problem. news reports now suggest - there is a problem. (btw - my car has also done some brief spurts of acceleration, which is odd in any hybrid. they usually have no real pick-up.) i had never before driven a prius, so i figured that was how the car ran. please let me know how to deal with this? the dealer says they'll check the brakes - but they don't know what they're looking for. also - my car insurance rates will go up because of this accident, and it cost me the $500 deductible. i'm disgusted, to say the least. i thought i'd bought the holy grail of design excellence & fuel economy -- new and improved 3d-generation. i bought an expensive headache. *tr | |||
| 09/29/2009 | 20 | 20 | |
| I purchased a 2010 prius in september 2009. within the first few days of driving i experienced a disconnect when i would hit the brake when going over a bump. this has happened at least 20 times since. i am contacting the dealer but i have not driven the car very much because i am upset about my safety as well as others on the road. *tr | |||
| 01/04/2010 | 5500 | 1 | |
| My toyota 2010 prius (purchased in massachusetts in august, 2009), has issues with the brakes. going over bumpy or snowy/icy roads, the brakes when applied don't seem to grab properly - they are slow and uneven in response to brake pedal pressure . . . i notified my dealer and was told there was nothing wrong. now i am hearing about design flaws with brakes in this model, and i am concerned. what do i do? *tr | |||
| 12/10/2009 | 2000 | 1 | |
| I purchased my 2010 prius in nov 2009. as admitted by toyota this feb 4, 2010, while braking, i have momentarily lost braking and the prius lurched forward. *tr | |||
| 01/16/2010 | 2230 | 1 | |
| Sudden brake loss. when braking and when the car is at low speed, if the car hits a bump or manhole cover or snow, suddenly the brakes no longer work. *tr this happens once a week. i have experienced it 10 times in two months. | |||
| 02/03/2010 | 15000 | 1 | |
| I own a 2010 toyota prius..purchased in august 2009...currently going for 15k miles on the odometer. i want to report issues with sudden acceleration even when i am stepping on the brake. i noticed every time i pass thru uneven road, for example potholes, icy roads, snow. the most common issue i have is as i am going down the road and car hits a pothole or manhole (those with metal covers) the car will suddenly accelerate, although i am stepping on the brake. sometimes i am afraid i will hit the car in front of me, especially when im in traffic. even going at 5-15 mph, the car will accelerate when it hits uneven road like pot holes or icy roads. this has happen quite a few times since i purchased the vehicle. just yesterday, we had about 1-2 inches of snow. i was driving slow and when making a left turn, the car hit some uneven road and snow and accelerated when i was stepping on the brake to make the turn. the car went up the sidewalk and the bumper cracked as it hit the concrete edge that separates the road and the sidewalk. no one was hurt and no property damage was done. the car is working fine, but this sudden acceleration issue is a major concern, especially now that i read and hear in the news that 2010 toyota prius are being reported with complaints of sudden acceleration. i thought my issue was an isolated case. please take this complaint into account. i will be going to the dealership this weekend for the 15k scheduled maintenance and will report the issue to them. *tr | |||
| 09/01/2009 | 2000 | 1 | |
| 1. while applying the brakes at low speed while riding over uneven or different road surfaces (such as pot hole or bridge). 2. the brakes seem to grip, then release, then grip again causing a miscalculation of braking distance required to safely stop the vehicle. it happens every time during the circumstances described in item 1 above. 3. nothing has been done to resolve the issue, although i understand that prius models sold after january 2010 have had this problem fixed. *tr | |||
| 02/02/2010 | 10 | ||
| I have a 2010 toyota prius and have experienced the same issue recently being reported. while braking, when going over a pothole, bump or wet surface, the car appears to lunge forward for a second. this has recurred at least 10 times since i purchased the car in august, 2009. *tr | |||
| 10/06/2009 | 8000 | 3 | |
| 2010 prius. when brakes are depressed, and vehicle is slowing normally, if the vehicle encounters a pothole or other very rough road surface, the brake will sometimes disengage briefly, but abruptly. the car seems to surge forward. in the three times i've experienced this, the brakes 'catch' again very shortly after the pothole -- less than a second. *tr | |||
| 01/18/2010 | 1000 | 1 | |
| I have the 2010 prius braking problem described in the news recently. the brakes seem to fail briefly when i'm stopping. it seems to have occurred when slowing on turns with an uneven roadway or an icy surface. at first i thought that i had hit an icy spot and the car slid a bit, but after about the 4th or 5th time i realized that was not always the case. it's quite scary when it happens, especially since i am in a turn at the time. it may of happened on straight roadway also. i can't remember for sure. *tr | |||
| 01/10/2010 | 1 | ||
| His happens about once every two weeks with our new 2010 prius. when we press the brake the car accelerates for a second. it seems very dangerous. when i call my dealership they have been dismissive and said it was a problem with the mats, we tried different mats and even took them out and the problem still persists. i haven't called the dealership i n a while but last time they still said it was a floor mat problem. *tr | |||
| 01/29/2010 | 90 | 1 | |
| When slowing down over bumpy surfaces, the car temporarily loses braking control (for a second or so). it is terrifying and needs to be looked into. there are hundreds of people online who have reported this exact same problem. *tr | |||
| 02/02/2010 | 400 | 1 | |
| My prius is having brake issues. when i took it back to the dealer the service rep rode in the car with me and since it didn't slip during our 2 block drive he said he can't authorize a repair since its not part of the recall. i want to just return this thing before i get in an accident but they told me i will lose 100 points on my credit score. what can i do?! *tr | |||
| 01/02/2010 | 1 | ||
| Our 2010 prius suddenly accelerates when we press the brakes and hit a hump on the road. this is an ongoing problem. *tr | |||
| 01/26/2010 | 3 | ||
| I own a 2010 prius and took the car into the local toyota dealer 2 days ago for the initial 5,000 mile check up to discuss a couple issues i have found with the car. i have experienced on 3 occasions a feeling of brake failure. this has occurred when i am driving over rough road. while the brake is being applied if i hit bumps, the brake pedal drops and i lose the brakes. i have immediately let up on the brake and then reapplied pressure to the brake pedal to get braking back. the dealer tried to achieve the same problem but was unable to replicate it. he said it was just the way the pedal must feel to me. our daughters both have 2006 prius' which i have driven and never experienced this problem with their car brakes. the second problem is with cruise control. again, i have driven a 2006 prius and used cruise control and not experienced the following in the 06 model that occurs in our 2010 model. the car started to accelerate in cruise mode. we have also found it takes a lot of pressure on the brake pedal to take it out of cruise control. the car jerks when tapping the brake pedal lightly to take off cruise control. the dealer again took it out for a test drive and said this is the way the prius feels. i know driving the 2006 model it was not the way the prius feels when you take it out of cruise control. *tr | |||
| 02/03/2010 | 3514 | 3 | |
| The brakes on my prius have failed three times in three weeks in both city and rural driving conditions--two times i was braking while driving down a hill (both under 30 mph) and once while driving on a secondary blacktop road (35 mph). *tr when brake failure occurs, the prius brakes not only disengage (fail) but the car seems to lunge forward. it's as if i am braking with my foot on the gas pedal and then let up on the brake while the gas pedal is still depressed. it's a nauseating feeling when this happens. i was planning on taking the prius on a cross-country trip in the spring but will not now because of this braking issue. it is not a safe vehicle. i have great concern for my safety and the safety of others, particularly pedestrian safety at intersections. i am also going to post my complaint on priuschat.com (online priusphile community of which i am a member) in hopes that others will come forward with their braking problems to nhtsa, forcing toyota to fix this problem. i completed a complaint form for last week on your site (didn't require vin number) but since brake failure occurred again today, i realize that this is not an isolated incident. therefore, i am filing this formal nhtsa complaint. *tr | |||
| 02/01/2010 | 50 | 1 | |
| 1. i had a 2009 toyota corolla and just traded it in and bought a 2010 toyota prius this saturday 1/30/10. on monday i was driving to work and was still in my community when i approached an intersection and applied my brake. the car skidded through the intersection. thankfully there was no other vehicles. i read the article today about the incident with the prius brakes and wanted to submit my incident. 2. it was the first time this occurred. 3. also i contacted toyota service and one of the service rep told me that they can take a look at it but cant do anything until toyota issues a fix... what do i do with my car? does lemon law apply? what are my options? *tr | |||
| 12/20/2009 | 3000 | 1 | |
| While coming to a stop, my vehicle (2010 toyota prius, model iv) lost braking power (felt like an acceleration while depressing the brake pedal) as i went over a pot hole in the road. i was at a very low speed (~5mph). i depressed the brake pedal even further and the braking power returned and i was able to stop. *tr | |||
| 01/15/2010 | 1 | ||
| We own a 2010 toyota prius and noticed that the car kicks a little when applying the brakes lightly. we didn't think much of it at first because we live in chicago and the streets are quite weathered. we thought the kicks we felt might be the car bumping along uneven roads. thankfully, we have not been involved in any accidents. other than this issue, we are pleased with the car. *tr | |||
| 08/26/2009 | 1 | ||
| I purchased a 2010 toyota prius on 8/26/09. the car would accelerate when i stepped on the brake to slow the car down at a stop sign or red light. i brought the car to plaza toyota on 12/23/09 after this occurred more than 50 times. toyota told me that there was nothing wrong with my car and i'm the 1st one to complain about this problem. on the receipt (r/o # 6311675/1) from this visit, toyota stated, tom the toyota field tech determined that the feeling that the customer is experiencing is normal and that the regenetive braking system and hydraulic system is transferring and that's normal. since that visit, this problem has only happened 4 times. in regards to braking on slippery roads, the car has slid 2 different times before gripping the road. also, toyota claims that the prius gets 51 mpg, this car has only been averaging 33 mpg in city driving. *tr | |||
| 09/17/2009 | 5000 | 4 | |
| While braking and turning and going over a small bump my prius seems to lose its brakes and accelerate for a split second . it has happened about 4 time in the last 6 months. *tr | |||
| 01/15/2010 | 3000 | 1 | |
| 2010 toyota prius bought on sept 28, 2009. i have experienced the following thrice when braking, if a pothole is hit, the car seemingly jerks forward/accelerates . the first time i thought i was imagining it, but when it happened on a couple of occasions after that i realized it is real. i am extra cautious while driving this car compared to my family's other cars. in normal course of operation the brakes are working fine. *tr | |||
| 11/09/2009 | 1300 | 1 | |
| Braking moderately, going over buckled asphalt and or tar strips in the pavement. i have had it happen at least three times, prius feels out of control then i regain control, wet or dry pavement. its a brand 2010 toyota prius with 5,000 miles. *tr | |||
| 02/03/2010 | 6432 | 1 | |
| Braking problem on 2010 toyota prius. vehicle surges while applying the brakes on a bumpy road. i have experienced this on several occasions since purchasing the vehicle new this year. the vehicle has not been taken back to the dealership at this point in time. *tr | |||
| 01/23/2010 | 4121 | 1 | |
| 2010 prius brakes do not work properly when hitting a slick manhole cover - car actually lunges forward. seems to be a software glitch when regenerative braking is taking place and one or more wheels can slip on the road surface. *tr | |||
| 01/28/2010 | 2000 | 1 | |
| I own a 2010 toyota prius. during the five months i've had it, i had 3 to 4 encounters with brake problem. twice i was driving around 20mph and was braking and preparing to make a turn, but the brake failed to work, and i felt that the car was accelerating out of control. this lasted for only about a second, and i eventually was able to slow the car down and make the turn. in one case the road was very bumpy, in the other case the car hit a pothole right around the time i braked. on a third incidence, the brake didn't work for a second on a slightly icy, slippery highway, when i was going at around 30mph. this may suggest that the brake function poorly on slippery road, although i haven't had another chance to experience this again. *tr | |||
| 01/19/2010 | 1000 | 1 | |
| 2010 third generation toyota prius. my wife and i are experiencing unpredictable momentary brake failure and sense of loss of control of this vehicle. this occurs unpredictably under various conditions such as uneven pavement, pot holes or patches of slippery road surface. the loss of braking force is brief, but the resulting reengagement of the brakes can be harsh and startling and has created moments of erratic and dangerous control lapse. this pattern of brake failure has occurred by my guess greater than 20 times since our purchase of the vehicle approx 4 months ago and over the course of 10,000 miles so far driven. over all we are very pleased with this vehicle, but are concerned that this braking unpredictability and abrupt reengagement will eventually be the cause of an accident. *tr | |||
| 12/20/2009 | 3000 | 1 | |
| I own a new 2010 toyota prius. i have always suspected the brake has problem. it happened several times that the vehicle will surge forward on slippery, uneven surface or pot holes when i hit the brake. *tr | |||
| 12/23/2009 | 2272 | 1 | |
| Brake not responding when applied. *tr | |||
| 01/30/2010 | 1 | ||
| My 2010 prius has twice had a brief momentary loss of braking in slow speed. both times this occurred when trying to stop for a stop sign in a residential area with low speed and on icy/snowy surface. the vehicle stopped 5 feet or so past the originally intended point of stopping. *tr | |||
| 01/04/2010 | 9110 | 1 | |
| My vehicle surged forward or temporarily lost braking after driving over a pothole or other uneven surface, and this is a recurring problem. *tr | |||
| 02/03/2010 | 1000 | 1 | |
| I bought a 2010 prius on 7/25/09 and shortly thereafter noticed something a bit unusual with my brakes at sporadic times. i just now read the description someone gave in an article about trouble with 2010 prius brakes and it fits my experience to a t: when braking, if a pothole or bump in the road is hit, the car seemingly jerks forward/accelerates for a split second. in addition, on sporadic occasions when backing up the brakes will grab sharply when relatively light pressure is applied. as for a date below i have listed today's date as it occurred today, but has done so intermittently since i have owned the car. *tr | |||
| 01/18/2010 | 10000 | 1 | |
| Brakes did not work on ice. car went forward about 15 feet with no brake action. *tr | |||
| 01/10/2010 | 12300 | 1 | |
| 2010 prius - braking effectiveness is lost on rough surfaces. the car gives the sensation of lurching ahead. in addition, we have experienced surging problems when using the cruise control. rather than accelerations to the preset speed, the acceleration continues past the setting until the cruise control is canceled by tapping the brakes. *tr | |||
| 12/28/2009 | 5000 | 1 | |
| Brakes locked up when gently pushing on pedal at low speeds in forward and reverse, anti lock brakes engage while stopped if your foot wiggles on brake pedal, brakes do not engage strong if you hit a small bump while braking causing you to not stop on target and anti lock brake symbol briefly flashes on at the same time. *tr | |||
| 11/15/2009 | 5600 | ||
| Tl* the contact owns a 2010 toyota prius. whenever the contact attempts to brake traveling over a rough terrain at a low speed the contact noticed that the brakes will suddenly disengage and then correct itself. the vehicle has not been diagnosed by the dealership and there were no prior warnings. the current and failure mileages were 5600. | |||
| 02/03/2010 | 6000 | 1 | |
| I thought that it was just me but when i heard others complaining about the brakes on the new 2010 prius i confirmed what i have been experiencing. whenever i begin to brake and either (a) hit a bump or (b) begin a turn, the car jumps or lurches as if losing traction for an overly excessive amount of time leading to a short but significant loss of control. *tr | |||
| 02/03/2010 | 5580 | 1 | |
| 2010 toyota prius - odd braking behavior. on a number of occasions, when the vehicle is completely stopped and the wheels are not turning, when i press on the brake pedal, the orange skid warning indicator on the instrument cluster turns on. something is wrong when i get such a warning, as the vehicle is not moving, and certainly not skidding. *tr | |||
| 01/28/2010 | 250 | 1 | |
| I bought a 2010 toyota prius on dec. on 12/21/2009, and have noticed on at least 4 occasions that when i brake on top of a bump in the road, the car actually lurches forward, instead of slowing down and stopping. i thought it was just me, but then i heard a story about it on npr, and now feel that this problem has been confirmed by others. i have been lucky that on the occasions when it has happened, there has not been a car in front of me, or i might have hit them from behind. *tr | |||
| 01/21/2010 | 3200 | 1 | |
| I was driving my 2010 prius and approached a stop sign at an intersection on a local road. (as i approached the intersection i was probably driving about 20 mph or less). after i hit the brakes and had been decelerating for a very brief period, i went over a pothole or some similar protrusion. at that point, my car lurched forward, almost hitting another car. that car had been about half car length in front of me when i hit the pothole. *tr | |||
| 09/01/2009 | 1500 | 1 | |
| While i was driving in city traffic and braking firmly as traffic slowed, one or both of my right-side tires passed over a manhole cover or hit a shallow pothole (this has happened several times). braking effort completely stopped for a second or two -- the car felt as if it were surging forward, but this was probably just the change from deceleration to coasting. braking resumed, either automatically or following increased pressure by me on the brake pedal, i'm not sure which. no collision resulted, but one easily could have if i had been following another car even a few feet closer than i was. *tr | |||
| 02/02/2010 | 1000 | 1 | |
| I own a 2010 toyota prius and have encountered the same issues with the brakes that many others have reported. when braking (which i do over a longer than usual distance and timeframe because of the car's ability to regenerate power while braking), the brake pedal drops and the car suddenly accelerates whenever the vehicle hits a bump or pothole. this has happened multiple times since i took possession of the vehicle in june 2009. no accidents or injuries have resulted, but i must be particularly cautious of road conditions when braking because this happens frequently and i am concerned about the possibility of future accidents or pedestrian incidents. *tr | |||
| 12/15/2009 | 1000 | 4 | |
| Braking power suddenly gave out momentarily. this occurred at low speed. however, i was approaching a crosswalk with a pedestrian in it. if felt like the car lurched forward. i read the article in the nyt this morning which noted this problem with the prius and this definitely fits my situation. it does not happen frequently (3 or 4 times at most), but it is obviously a safety issue. i purchased my 2010 prius new on nov. 3, 2009 from toyota of seattle. i contacted the dealer about this issue a few days ago, but have received no response. *tr | |||
| 02/03/2010 | 1 | ||
| 2010 toyota prius frequently accelerates briefly when braking after hitting pothole or going over a bump. in addition, frequently at start up, the brake pressure is extremely high, and the slightest release of the brake causes the car to lurch rapidly either forward or back, depending upon whether in drive or reverse. *tr | |||
| 02/02/2010 | 3000 | 1 | |
| When braking and going over rough road or potholes, the car feels like it is accelerating. it is necessary to exert additional pressure on the brake pedal, but sometimes does not feel like this is helping. *tr | |||
| 12/25/2009 | 3000 | 1 | |
| 2010 toyota prius - braking issue on slippery service - i find the braking distance required to stop the vehicle is excessive when compared to my previous vehicle on slippery services. this has resulted in the vehicle rolling forward into intersections before coming to a stop. i live in mn where road conditions can become less than ideal. i do not believe that i am traveling at an excessive speed but i have know adjusted my driving habits to account for the extra distance required to stop. *tr | |||
| 02/03/2010 | 8550 | 1 | |
| I have been driving my 2010 prius for 4 months and everyday i drive over this road near my work that's not a total flat surface with a bump, my prius just jerks and slides forward and accelerates for a split second. this happens every single day i drive to work over this bumpy road. it worries me if a pedestrian is walking in front of me i am not sure if i can pull to a complete stop in time. *tr | |||
| 01/18/2010 | 1000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated as she was driving 5 mph she slowed down and applied the brake to stop the vehicle and it lunged forward. this happen twice. the vehicle had not been taken to the dealer . the failure mileage was 1,000. | |||
| 12/17/2009 | 10 | ||
| While driving my 2010 toyota prius on roads with lots of bumps, potholes, sewer covers, etc, i have braking problems. when driving over one of these obstacles and i touch the brakes, the car lurches forward as if accelerating or slipping. i can then release the brake and step on it again to slow/stop the car, but if there was a car close in front, i would have certainly hit it. i purchased the car in august 2009 and have had this same problem happen at least 6-10 times. *tr | |||
| 01/20/2010 | 300 | 1 | |
| My 2010 prius has been exhibiting momentary loss of braking when passing over a rough surface. my neighborhood has several roads with steep slopes and although my speed on these routes is almost always under 20 mph, on several occasions i have noticed an uneasy feeling of loss of control on passing over potholes or seams in the pavement when going downhill. i had written this off to unfamiliarity with a new vehicle, since i only purchased the car on 12/31/09 but when i read today's ny times article, the symptoms it described were exactly what i had been experiencing. i have not yet contacted the dealership but plan to do so right away. *tr | |||
| 11/15/2009 | 1500 | ||
| Tl* the contact owns a 2010 toyota prius. while the contact was driving 30mph traveling over a rough terrain he attempted to brake and noticed that the vehicle suddenly surged forward before the brakes would activate. the vehicle has not been diagnosed by the dealership and there were no prior warnings. the current and failure mileages were 1500. | |||
| 12/15/2009 | 150 | 1 | |
| Driving 35mph on straight road and ran over some unseen potholes. applied brakes and they did not function as expected. much less braking power than normal. *tr | |||
| 01/03/2010 | 200 | 1 | |
| 2010 prius brake surge when hitting bump in road when brake is engage. *tr | |||
| 11/15/2009 | 5000 | 1 | |
| I have had the following occur several times since i purchased the vehicle in july 2009: when braking on snow or ice or braking when passing over a bump or pothole the brakes will feel as if they are slipping and the car will accelerate for a fraction of a second. it's as if the abs is releasing the brakes too long before reengaging them, resulting in the car to stop decelerating momentarily. *tr | |||
| 01/12/2010 | 3400 | 1 | |
| 2010 toyota prius seems to accelerate when i apply brakes to slow down and car goes into shallow pothole. this event is repeatable and happens every time i slow down at a particular stop sign with a pothole in front of it. fortunately there has never been a car in front of me and i now know to avoid this spot. car behaves normally once it has cleared the pothole. this occurs at slow speeds ( 20mph down to 0 ) has not happened anywhere else, but happens everytime at this location. *tr | |||
| 09/01/2009 | 1 | ||
| The brakes seem to release if they are being applied while driving over a rough surface - speed bump, potholes, etc. this has occurred about 10-15 times since buying the vehicle in august 2009. *tr | |||
| 12/10/2009 | 100 | 1 | |
| I purchased a new toyota prius 2010 in december 2009. almost immediately i noticed braking was 'odd' and i felt like when i would brake sometimes, the car jolted forward before stopping. after some self monitoring, i realized this particularly happened when crossing railroad tracks near my home en route to work. i have not had an accident but instead, have tried to brake more slowly and in general this has helped. however, a few times in traffic i have had to stop abruptly and about half the time it does the same thing, causing me to fully slam on the brakes. in the past i have had several toyota cars and rarely needed the full force of my anti-lock brakes in such situations. i have reported this problem to the dealer and he requested i wait until the 'break-in' period was over before making any decisions. that break-in period was defined as 5000 miles and i am now at about 4800, and the problem has not changed. when i reported it to the dealer, i had about 3000 miles on the car, and it was about one month after purchase (early january). at the time, the brakes were checked and no problem was identified. today i contacted the dealer about turning the vehicle back in since i am concerned and not happy with the vehicle's performance. *tr | |||
| 02/03/2010 | 1000 | 1 | |
| My 2010 prius iv purchased in june, 2010 has on several occasions when i brake at slow speeds and i cross over a bump in the road the car momentary surges forward. *tr | |||
| 12/17/2009 | 1800 | 1 | |
| I purchased a 2010 toyota prius v in november 2009. shortly afterwards my wife experienced the problem with the brakes. she went to apply the brakes but the car just would not slow down. she practically had to stand to apply enough pressure to bring the car to a stop. we went back to the dealer twice, but could not find anything wrong. *tr | |||
| 11/10/2009 | 3000 | 1 | |
| Vehicle surges forward when braking over road surface that is not smooth. symptom makes safely judging stopping distance very difficult, and in our opinion, increases likelihood of an accident. toyota dealer claimed they could not replicate issue and that vehicle's computer did not report/record any problems. we can replicate issue over same bump everyday. *tr | |||
| 01/27/2009 | 800 | 1 | |
| 2010 toyota prius iii, purchased december 2009 from dch brunswick toyota, north brunswick, nj 08902 i experienced atleast 3 different incidents of the following, sometimes at the same spot on a road - when braking, if a pothole or bump in the road is hit, the car seemingly jerks forward/accelerates for a split second. *tr | |||
| 01/10/2010 | 5000 | 1 | |
| The car has hyper-sensitive brakes whenever i am backing up from a parked spot (e.g. backing up from a parking space at a store.) when backing out of a space (using just idle speed and tapping lightly on the brakes to control the speed) tapping lightly results in the car brakes forcefully engaging and slamming the car to a stop. this happens only after the car has been warmed up; parked (like going to the store to shop) and then you re-enter it to leave. the hyper sensitive breaks continue for a short period of time while i am positioning the car to get out of a parking space and onto the road. after the first occurrence of the forceful braking, putting the car in park, pumping on the brakes several times usually corrects the problem. since it happens randomly, you never know when it will occur. toyota says there is nothing wrong with the brakes when i brought it to their attention. they said it is common with priuses. this is not true. i own a 2007 prius and never had this problem. this problem has been mentioned several times by other 2010 prius owners on the priuschat.com website. *tr | |||
| 02/01/2010 | 6450 | 1 | |
| From the first days with this vehicle we have had an intermittent issue with the brakes. so far, this issue only occurs at very slow speeds, such as when backing out of the garage or when backing out of parking spaces. on occasion, we have experienced this problem in the forward direction when stopping in the slow conditions of a parking lot. following is a description of the braking action: 1. i start the car (power button with foot on the brake). 2. i place the shift lever in reverse or drive with foot on the brake. 3. i release the brake pedal. 4. the car eases backward (or forward, as the case may be). 5. i apply the brake , either to shift into drive or to check for traffic before continuing. 6. several times per week the brakes lock the instant my foot touches the brake pedal. 7. when this problem occurs, the locking action will repeat each time i release the brake, ease backward or forward, and brake again. 8. the brake locking is so instantaneous that passengers' heads jerk and they look surprised. 9. the braking action is more like that of flipping an electrical switch than of pressing a brake pedal. 10. from the beginning, i have tried to determine if a certain sequence of actions triggers the locking. i cannot come up with anything. so far, the only constant is that this locking happens with the first stops after starting the car. i have not experienced it with subsequent stops. however, heaven help us if this were to occur at higher speeds! at the 5000 mile service, i asked about this issue. the service rep said that some prius owners had mentioned that their brakes grabbed once in a while. the rep said that it could be a wet brake issue. *tr | |||
| 02/01/2010 | 4000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated her vehicle surges when she goes over a pothole and hit her brakes. this has been happening since she purchase her vehicle. the vehicle was taken to the dealer and the technician test drove the vehicle with her but the failure did not occur again. the failure mileage was 4,000. | |||
| 12/29/2009 | 500 | 5 | |
| I bought toyota prius 2010 in early december 2009 and have experienced at least five times brake problem. i basically can't make my car stop effectively when i hit the brake. it is worse when you drive fast or in a snowy or icy days. now i have to slow down way before the stop sign so i can avoid the brake problem, and i wouldn't let anyone else to drive the car for the fear of car accident. *tr | |||
| 06/13/2009 | 100 | ||
| Tl* the contact has a 2010 toyota prius. the contact stated that the vehicle feels as if the brakes release if he hits a bump while pressing the brakes. the contact stated that it felt like the vehicle surged forward.the contact stated that it only happens when the vehicle hits a bump or pothole. the failure mileage was 100. the current mileage was 5000. | |||
| 01/25/2010 | 1500 | 1 | |
| Prius 2010. intermittently lose braking ability. especially when road is wet and uneven. when coming to a stop light and traveling relatively slowly, if the vehicle goes over uneven pavement (pothole or just rubbly), it's as if the abs gets confused and very temporarily gives up. this is in city driving. starting from under 20 mph. trying to stop at a light and with cars in front of me. i have driven the exact same route in other cars and not had the same problem. (prior vehicle was bmw 528i (model year 2000). this is a route i drive daily (between dropping my daughter at school and going to work.) i have observed the problem multiple times. *tr | |||
| 01/15/2010 | 6200 | 1 | |
| My 2010 prius brakes briefly stop working when i'm braking while driving over a bump or pothole. i have not been in an accident however this can lead to an accident in the future. this happens periodically and can be recreated. *tr | |||
| 02/02/2010 | 4029 | 1 | |
| My 2010 prius lurches over bumps. the dealership said i was the only one with this problem and found nothing wrong on two visits. i read that i am not the only one with this problem, so i want to issue a complaint and ask what i should do now. *tr | |||
| 02/01/2010 | 12000 | 1 | |
| My 2010 toyota prius seems to loose braking on or over bumps. it seems to not want to stop for a few seconds after hitting a bump in the road. i have to remove my foot from the brakes and re apply inorder to regain breaking. this happens almost every time when simultaneously applying the brakes and going over a bump/pothole in the road. *tr | |||
| 01/30/2010 | 3500 | 1 | |
| When braking over a smooth surface such as a manhole cover, the vehicle tends to lurch forward. *tr | |||
| 10/09/2009 | 6248 | 1 | |
| 2010 prius brakes does not work if the vehicle goes over a bump or a pot hole while brakes being applied..it has happened several times...even complained to the dealer once...dealer says there are no technical buliton or technical fix on the issue. *tr | |||
| 01/10/2010 | 50 | 1 | |
| When i brake my 2010 prius and hit a bump it lurches forward, causing momentary loss of control. *tr | |||
| 08/17/2009 | 150 | ||
| Tl*the contact owns a 2010 toyota prius. the contact noticed that there were occasions when he lost braking power and slight acceleration when he drove over a pothole or bump in the road. he stated that the issue occurred when driving at low speeds in normal road conditions. the contact was able to regain control and resume normal operation almost immediately after the failure. he experienced the issue at least 12 different times. he had neither taken the vehicle to the dealership nor spoken with the manufacturer at the time of the complaint. the vehicle had not been repaired to-date. the current mileage was approximately 3,000. the failure mileage was approximately 150. | |||
| 01/20/2010 | 6500 | 1 | |
| When braking numerous times, my 2010 toyota prius has stopped braking and gives the feeling that it is lurching forward. my most recent incident occurred when i was driving over a man hole at about 30-35 mph. these incidents typically occur when braking over non-smooth road surfaces, such as potholes. i have owned the car since june 2009. *tr | |||
| 07/01/2009 | 1 | ||
| My 2010 pruis tends to lurch forward when braking. this mainly seems to occur when the surface changes while braking, like driving over a manhole cover, pothole or slippery surface. i have experienced this every since i bought the car in june 2009. i reported it to the dealer at my first check-up, and was told that it was a function of the unique braking system on the prius, and that they hadn't heard the complaint before (too new in the model year). no record was made of my complaint. i have lived with it ever since, and it happens at least twice a week; just happened again yesterday. at one intersection on my commute i hit the same surface every time and it lurches almost every time. it feels almost as if i have lifted my foot off the brake pedal and it lurches forward, although i can't say if it feels like it is accelerating or if it is just the inertia of the car that causes it to lurch forward. it has not caused an accident yet, but since the car lurches a few feet forward, i know that i would hit any car too close in front of me. i also worry that in snow or ice it would cause a skid to occur or send me into a different lane. i was not at all surprised to hear about this on the news this morning, and regret that i did not know about this complaint form to file or i would have back in july. i can't state an incident date since it is ongoing. *tr | |||
| 11/01/2009 | 3500 | 1 | |
| I lose all braking for a few seconds on my 2010 toyota prius while going over rough roads at slow speed. i have not tried this at highway speeds. i wanted to wait to learn more of the problem from my dealer. so when i was at my toyota dealership on 28 jan 10,for my car's first scheduled maintenance, the assistant service manager stated that the problem is prevalent on most toyota vehicles including the truck he owned. but that's not what reports heard today, 3 feb 10. *tr | |||
| 01/04/2010 | 2750 | 1 | |
| Low speed brake failure on 2010 toyota prius. this describes just one of multiple times i have had what seems like a short, but total loss of brakes on this vehicle. each time, i was easy to medium braking and hit a bump or was on rough surface. the brakes just appear to fail. natural reaction is to press harder on brake pedal. usually by this reaction time the brakes are back and you stop abruptly or skid to a stop. it has something to do with rough roads or bumps that happen at a given point during braking. very scary situation. this has happened on both dry pavement and snow packed roads. again, the common factor is the bump during braking. each time i was the only person in the vehicle and the vehicle had no additional rear weight. speed was under 25-30 mph. *tr | |||
| 02/01/2010 | 4233 | 1 | |
| 2010 prius. car lurches everyday when braking at stop signs. car drifts forward and does not immediately respond to brake pedal being pushed down. often happens in the middle of the stop. brakes will start working but then slip in the middle at very low speeds. doubt the anti-lock brake system could be the problem as speed are very low. has been occurring since the car was purchase in the summer of 2009. *tr | |||
| 07/01/2009 | 500 | 1 | |
| While driving my 2010 prius, i have experienced unintended brake release on 6 occasions since taking delivery of the car in june 2009. during the summer, on dry pavement, the 1st incident occurred while approaching an intersection and going into a right turn, the left front wheel rolls over a (flush to the pavement) manhole cover. the car lost braking and jumped/slipped forward. fortunately, there was no car close in front of me. this occurred 2x as this is one of my normal routes to work. on 2 other occasions, near my home approaching an intersection in which i needed to slow down, the car jumped when applying the brakes. the pavement was in 2 sections (split horizontally), one part concrete and the adjoining section asphalt. the car slipped/jumped forward while braking. the 5th occasion occurred approaching an intersection and the car lurched forward as i tried to stop almost hitting the car in front of me. this was on dry pavement, don't know the reason. going over potholes on at least 1 occasion,the same reaction. had mentioned to the dealership several times, the first time being at a new owner orientation meeting. they were not familiar with this issue. was advised if it keeps occurring, to bring the car in for an inspection. i now have an inspection scheduled for friday feb 5th at the dealership. *tr | |||
| 10/13/2009 | 3500 | 1 | |
| I own a 2010 toyota prius and have noticed that if you are applying the brakes and one of the wheels of the car happen to hit a pothole or bump the brakes seem to momentarily release and then grab again. my foot is not coming off the brake pedal. it's as if the car lunges ahead for a split second. this has happened more than once. *tr | |||
| 01/06/2010 | 2900 | 1 | |
| When driving at moderate speeds on city/surface streets in my 2010 prius, a braking problem occurs. if i hit a bump in the road while braking, the vehicle lurches forward as if the brakes have disengaged, even though i am still pressing the brake. i push the brakes down harder and nothing happens. a few seconds later, the brakes come back into play and the car slows down again. this has happened several times, and i have narrowly avoided accidents caused by this several times. *tr | |||
| 01/06/2010 | 2000 | 5 | |
| My vehicle has gone into a slide when braking...feels like the brakes are locked although i have antilock brakes. i have slid into an intersection twice and i would say there was sand left over from snow melt. this is a brand new car and i definitely can feel a difference that has caused alarm possibly 4 or 5 times in 4 months. *tr | |||
| 08/03/2009 | 6200 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated when depressing the brakes to stop the vehicle it is grabbing and jerking. while using the vehicle's speed control upon setting it the vehicle would accelerate, but when the brakes are applied the vehcile would operate normally. the contact stated that he monitors the failures. the vehicle has not yet been diagnosed by the dealer.the failure mileage 6,200. | |||
| 12/11/2009 | 4000 | 1 | |
| I'm the owner of a 2010 prius and twice now when applying the brakes firmly during a rain soaked day while going over the temporary steel plates used during road repairs as soon as the back wheels hit the surface the car shoots a head as if the brakes are temporarily not applying pressure at all. no one was hurt it is just very unsettling . *tr | |||
| 02/03/2010 | 11000 | 1 | 07/31/2009 |
| Tl* the contact owns a 2010 toyota prius. while the contact was attempting to stop the vehicle while traveling at a low speed over a bump the contact noticed that the vehicles brakes would suddenly release for a short moment and then works properly. the vehicle has not been diagnosed by the dealership and there were no prior warnings. the current and failure mileages were 11000. the consumer stated he took the vehicle to the service dealer to have the recall performed on the brakes, however the vehicle continues to exhibit the same problem. when braking, the they seem to release. updated 06/15/10.*jb | |||
| 02/02/2010 | 7000 | 3 | |
| Brakes on prius 2010 periodically have a lag or delay time before they engage. i apply the brakes, and no grabbing or slowing down occurs for 2-3 seconds. this began to happen during january (car purchased in november). i have 7000 miles on the car. 1st time- went over rough part of road and applied brakes, delayed time until brakes acted. felt as if i was floating- loss of traction feeling. brought car into toyota westport ct dealer on jan 14, 2010 and was told no problem found. it has continued to occur: 2nd time - cold morning and 3x no braking traction as driving about 10-20 mph and trying to slow down for a stop sign and when a car entered from a side street 3rd time (feb 2, 2010) - on highway around 2 pm. cruise control was on and applied brakes - no slowing down for about 3 seconds. very scary feeling as it happens. *tr | |||
| 01/12/2010 | 10000 | 1 | |
| I bought a 2010 toyota prius in june of 2009. on several occasions, i have noticed the brakes not working properly when i have tried braking while going over a speed bump. instead of slowing or stopping, the car feels like it actually is lurching forward. it corrects itself almost immediately, but there is that second when it feels like it isn't going to stop. in reading several stories about reported brake issues with the prius, i realized that other people are having the same issue. i have put in below the approximate date that was the last time this happened. *tr | |||
| 01/28/2010 | 6700 | 1 | |
| Brake problems: my 2010 prius, which i purchased last october, has been having sporadic problems with the brakes. it usually occurs on the streets, and at low speeds, and the car seems to lunge forward even though i have my foot on the brakes. it's as if i stopped braking even in fact, i've been putting uniform pressure on the brakes. thankfully, this has not caused any injuries or accidents, but i am concerned about the problem. *tr | |||
| 01/18/2010 | 1 | ||
| I have a 3rd generation 2010 prius. when braking, my car lurches forward with brief spurts of acceleration if i hit a bump. the bump or pothole does not have to be very big and the loss of braking power is for a second or two. i do not believe this has anything to do with the gas pedal. *tr | |||
| 12/18/2009 | 1000 | 1 | |
| 1. going slightly downhill, one of the front tire went over a pothole, on other occasions, going over a slightly bumpy wet road 2. temporary (about 2-4 seconds) brake loss, has occurred about 3-5 times in 3 months 3. nothing done so far, waiting to visit dealer at 5000 miles or for toyota to issue some kind of recall. *tr | |||
| 01/02/2010 | 100 | 1 | |
| I have a 2010 toyota prius (purchased june 2009). the brake system routinely fails for 1-2 seconds if i am braking as i hit a pothole or bump in the road. it feels as if braking starts, then totally disappears for 1-2 seconds, then i feel the abs system kick in after that. this has probably occurred on the average of once per week since i have owned my car. it occurs in routine city driving. *tr | |||
| 11/07/2009 | 15000 | 1 | |
| When braking and hitting a bump at the same time there is a loss of braking power. the vehicle lunges forward as if the brakes have stopped working momentarily. this caused me to have to use additional crash avoidance maneuvers, in another circumstance could have caused an accident. it feels as if a portion of the braking system shuts off after hitting the bump. *tr | |||
| 01/06/2008 | 1500 | 1 | |
| Driving normally on a rough road i came to an intersection where i had to apply the brakes. in this instance i applied the brakes and the vehicle started to slow as normal. i then hit a rough patch of road and the brakes appeared to have failed. there was no braking power at all. i then reapplied the brakes and the vehicle started to slow as normal and the vehicle then stopped. for the period where there was no brakes it was scary. *tr | |||
| 08/25/2009 | 500 | 1 | |
| When applying brakes on my prius 2010 while approaching a stop sign or light, if i hit a bump, the brakes will briefly disengage. this has happened on numerous occasions since i purchased the vehicle last summer. *tr | |||
| 01/10/2010 | 1 | ||
| 2010 toyota prius - owned car for 8 months. five times car has accelerated while i am pressing on the brake. happens when i am slowing down and hit a pot hole or bump. very scary! have a teen who is learning to drive and she is not allowed to use the prius. mechanics at dealership looked at me like i was crazy. said they would have to exactly re-create problem to investigate. *tr | |||
| 01/15/2010 | 4000 | 1 | |
| Event occurs at slow speeds when coming to a stop on an icy surface. initially brakes feel like they are working properly. then the brakes appear to stop working for split second. there is a sense that the car is accelerating, but i believe the sensation is caused by the brakes not working. after a split second the brakes appear to work properly again. has only occurred at low speeds on an icy surface. the concern is that the required stopping distance is extended beyond expectations. this has occurred about 10 times this winter. after the first incident, i thought the car was sliding on the ice. however after repeated occurrences, the sensation is not sliding. the sensation is that the brakes have stopped working for a split second. *tr | |||
| 02/03/2010 | 1 | ||
| I am writing about my 2010 toyota prius. i have noticed faulty brakes on the vehicle, mainly when i am attempting to brake on slippery or bumpy surfaces. i live in chicago where there are many bumpy roads and potholes, so when i'm coming up to a red light and need to stop over a bumpy surface, it feels like the brakes are locking and that i will slide into the car in front of me. by pumping the brakes, the car will stop, but it is a frightening feeling that i don't have control over my car. the same thing happens when it is rainy or the roads are slick. this has been a continual problem since i purchased the car in august 2009, in fact i took the car back to the dealer a few moths later to have it checked out. they claimed that since i have not driven a hybrid car in the past that i was unfamiliar with its braking system, and this was how a hybrid's brakes worked. i did not accept that answer, but what else can i do? i do not want them to realize there is a problem only after a crash has occurred. *tr | |||
| 11/15/2009 | 2500 | 5 | |
| My 2010 toyota prius, has on at least five occasions, surged forward when i hit the brakes, especially coming off of cruise control heading to a highway off ramp. these have occurred between september 1 and the present, february 2. the car surges forward even though i am not accelerating and have in fact hit the brakes. i then hit the brakes harder and the car has slowed. *tr | |||
| 02/01/2010 | 14191 | 3 | |
| This is the 3rd time i have had a total lockout of braking on my 2010 toyota prius. this seems to happen most times if the road is slightly rough and downhill. dealer denies any known problems but this last time i went completely through a stop sign. had there been other traffic i would have had an accident. *tr | |||
| 01/10/2010 | 15000 | 1 | |
| 2010 toyota prius braking problems. not always consistent braking pressure or braking force. *tr | |||
| 01/20/2010 | 3040 | 1 | |
| When braking to come to a stop, the vehicle suddenly accelerates forward or the brakes fail for just a moment. this usually happens when the road surface is uneven, or if there is a pothole. it is not reproducible, but has consistently happened about once or twice a month since i purchased the new vehicle in november, 2009. *tr | |||
| 02/01/2010 | 50 | 1 | |
| 2010 brand new prius lurches forward occasionally when brakes are applied when turning sharp or going over a bump. *tr | |||
| 10/14/2009 | 500 | 10 | |
| 2010 prius braking problem. car feels like it is jumping forward while applying the brakes and traveling over bumpy roads or potholes. purchased car in october 2009 and this has occurred more than 10 times. *tr | |||
| 02/01/2010 | 5000 | 1 | |
| 1. 2010 prius, brakes release and car surges forward if one tire hits a bump, pothole or uneven surface 2. this brake failure and surging occurs daily in both directions on my commute. in two locations the uneven road surface fall directly before an intersection and i have a difficult time stopping for a red light or nearly hitting car in front of me. this has been the case since i bought the vehicle. 3. although it constantly scares me and seems odd, i have just turned 5000 miles on the 2010 prius and have not yet had it for service at the dealer. no parts have been altered or replaced. i have often complained about it at home or to friends, but it didn't occur to me to report it. i have not yet had an accident as a result of the problem. *tr | |||
| 01/29/2010 | 4000 | 1 | |
| 2010 toyota prius (package iv) suddenly accelerates while braking over a bump, like a manhole cover. it occurs several times per week. no serious consequences so far, but could be troublesome if it occurs near other cars at a light or stop-and-go traffic. i took it to the toyota agency where they drove my car with me and did notice it, but didn't know what to do about it or think it was a serious problem. we also drove another 2010 prius on their lot to determine that the same problem existed in it. i don't know if the braking is air, hydraulic, or electric, so i selected all three. *tr | |||
| 01/15/2010 | 1500 | 1 | |
| While driving over a small utility access cover in the road, at a relatively low speed, our 2010 toyota prius momentarily lost braking power and seemed to accelerate for a very brief moment. although braking power was regained very quickly, this was alarming since there was a pedestrian in the crosswalk immediately in front of the vehicle. although this has occurred only once at the time of this report, we have also experienced unusually sensitive braking while in reverse. this problem was alleviated by shifting into neutral and then again into reverse. the problem while in reverse has occurred twice at the time of this report. this is my 3rd toyota prius and the first with any braking issues. the car has less than 2500 miles on it now and had approximately 1500 at the time of the loss of braking power. *tr | |||
| 01/20/2010 | 5800 | 1 | |
| 1) driving at about 35 to 40 mph on a flat smooth road approaching a red light. applying the brakes lightly to slow down before stopping. hit a shallow pothole on right side. probably a manhole cover. 2) very quickly, lasting only a split second, the brakes seemed to come loose and then re-engage. this didn't get my attention too much the first time, but then it happened a few weeks later again at the same place under the same conditions. it is apparently repeatable with my 2010 prius! 3) nothing done yet. does not seem to be severe enough to warrant worrying about right now. *tr | |||
| 01/30/2010 | 8200 | 1 | |
| This has occurred several times in the 5 months that i have been driving my 2010 toyota prius hybrid. i would go over a pot hole or larger bump and instead of my brakes initiating when i press the brakes there is a quick acceleration and the car literally lurches forward instead of slowing down. also, there is a long lag time between pressing the brakes and the brakes actually intiating which is consistent and occurs all the time. *tr | |||
| 02/03/2010 | 0 | 1 | |
| My 2010 toyota prius does experience momentary brake failure when hitting bumps or potholes. the problem never lasts more than a moment and has not caused any accidents or near accidents. i have not brought the car for repair. *tr | |||
| 12/01/2009 | 100 | 1 | |
| My wife and i purchased a 2010 toyota prius (new) in july, 2009. we have driven it slightly more than 8,000 miles. i have two safety related complaints to report with the braking system: complaint #1 - several times (perhaps 10-15) when applying the brakes after coasting a short distance as i prepare to stop, i have momentarily lost all braking. it feels as if i have hit a patch of glare ice with all four wheels. it always happens the moment i first apply the brakes, and then after a moment (perhaps a second or less) the braking system returns to normal operation. for that brief time there is no braking action at all. complaint #2 - several times (perhaps 8-10) when taking the car from park to reverse to back out of a parking space, the braking system is so sensitive that it is nearly impossible to control the car's speed. the brake pedal has nearly no play or feel to it, causing the car to jerk to a stop when the slightest pressure is applied. this results in a pattern of coast a few feet and jerk to a stop, coast a few feet and jerk to a stop, repeated several times while backing up the necessary 30 +/- feet. i don't recall ever experiencing this problem while moving forward. since i have experienced each of these malfunctions multiple times over these past seven months, the approximate incident date below is arbitrary. *tr | |||
| 02/01/2010 | 3820 | 1 | |
| I had trouble braking my 2010 prius--when i hit the brakes and went over a bump at the same time the car sped up instead of stopping. *tr | |||
| 08/15/2009 | 600 | 1 | |
| I have a 2010 prius that is now about six months old. i thought i was nuts when i described to my wife the incident of braking over a manhole cover and feeling the car seem to slip and jerk forward for a second. seeing an article at cnn.com this morning caused me to write as this appears to be an issue. *tr | |||
| 11/21/2009 | 6000 | 1 | |
| My wife and i have both experienced rare but scary braking in our new 2010 prius. under the right conditions there is a definite lag (less that two seconds)between application of the brake pedal and when the brakes actually engage. i suspect an electronic problem is not telling the electric traction motor to shut off fast enough during these braking events, so the car is braking against its traction motor which is still pushing the car. we've attempted to pinpoint the conditions when this unusual braking behavior occurs and here is our best description: 1. happens when one front wheel hits a slick spot like a wet manhole cover or storm grate during braking and the abs cuts in 2. it happens during braking on very bumpy roads especially in tight corners where traction may be lost momentarily on braking causing the abs system to cut in. 3. it happens at relatively low speeds below 25mpg and when the accelerator in not pressed and usually when the traction motor is running. we drive two other cars (non-hybrid)over the same roads in similar conditions and don't experience these braking anomalies. the toyota dealer can't identify a problem. *tr | |||
| 10/20/2009 | |||
| I purchased a 2010 prius in august 09 and have problems with the braking system. the car lurches forward when applying the brakes on a bumpy surface. i was fortunate on a number of occasions that there was distance between me and the car in front of me. after 3 or 4 occasions of experiencing this, i took the car to the dealership in oct to have them check it out. i was told that the brakes were fine, nothing showed up in computer electronics and there were no recalls. they told me that i had to learn how to drive a hybrid and only drive on smooth surfaces! what city has smooth roads with no seams or bumpy surfaces on it. it continued to happen so i called the dealership a week later and was told that if i could recreate the problem the shop foreman would go out for a test drive with me. recreating the problem is nearly impossible. i am a realtor and my livelihood depends on my having a reliable car. i am nervous driving my car and find that i drive always anticipating that i am going to have a brake problem...this is not a safe way to drive. the problem continues and i do not feel safe driving my vehicle. i am happy to hear that you are looking into it. also, check out the prius chat room for more complaints about the braking problem. thanks so much for your investigative work. *tr | |||
| 12/12/2009 | 1000 | 1 | |
| I have a 2010 toyota prius iv. on at least two occasions, when i pressed the brake pedal and hit a pothole, the car's brakes seemed to have stopped working for 1-3 seconds. it felt as if i lifted my foot off the brake pedal but i was pressing it about 1/3 of the way down. this increased my braking distance substantially. luckily there was no car or pedestrian in front of me. if there was one, i would have definitely hit them. *tr | |||
| 07/01/2009 | 1 | ||
| Infrequently, but repeatedly, while braking at low speeds, the brakes on my 2010 toyota prius will briefly cut out. when this occurs, the car will often seem to surge forward for the briefly period; it is hard to tell if this is simply a period of discontinued deceleration, or in fact a brief burst of acceleration. in over seven months of ownership, this has occurred at least 10 times, but certainly less than 50. it typically seems to happen when traveling on wet roads (i live in seattle) or after sudden change in the nature of the road (i.e. a pot hole or change of road surface height/type). so far this has not resulted in any injury or crash, but is concerning. *tr | |||
| 12/12/2009 | 3000 | 6 | |
| I purchased a toyota prius 2010 in october last year. i have had one braking failure incident when the car failed to brake as i was approaching a stop street. the brakes did not respond and then a few seconds later kicked in and the car came to a slow stop. i have also experienced about 6 incidents where my car accelerated while my foot was on the brake. these incidents occurred when i traveled over a bump or variance in the road. i have scheduled a service so that toyota can review the braking system in my car. *tr | |||
| 01/10/2010 | 800 | 1 | |
| We own a 2010 prius and several times since we purchased it in november 2009 we have noticed issues with the braking system. on each occasion we were driving over an uneven or slippery surface (e.g., potholes, icy manhole covers) and when the brake was pressed it didn't immediately engage or catch. rather, the brakes engaged after the car passed the slippery or bumpy surface. the problem seems to result in an acceleration (or perhaps slower deceleration) when one steps on the brake pedal. on at least one occasion, an indicator light on the dash display lit up. *tr | |||
| 01/12/2010 | 5000 | 1 | |
| Multiple events/failures, here is a summary: 1) while braking over rougher road conditions -- not potholes, but regular roughness/bumps in roads -- brakes feel like they momentarily no longer function/go out. as soon as you return to smooth road surfaces, the problem corrects itself. this has occurred on numerous occasions, the dealership with whom i purchased my vehicle were unaware of the problem when i called them, even thought it has been discussed in the national news. 2) brake malfunction on slippery roads. i was driving to work and going very slow, leaving more than enough space to stop from the car in front of me. i approached a red light and lightly applied the brakes. having plenty of space to stop, i realized that my car was not slowing as it should. regardless of the pressure applied there was no change. i ended up stopping by rearending the vehicle in front of me. the damage was minimal, but scary nonetheless. *tr | |||
| 01/25/2010 | 6940 | 1 | |
| 2010 toyota prius has a major flaw in the regenerative / hydraulic braking system. if the car is slowing gradually with regenerative braking active and the road surface changes due to a pothole, uneven/broken surface, or speed bump, the hydraulic braking is reengaged very slowly. this causes the car to appear to accelerate for a second or two until hydraulic braking is engaged by the car's computer or because the driver had to increase brake pedal pressure dramatically to slow/stop the car. i have been able to reproduce this daily on a number of the roads i consistently travel. speed during these incidents is usually anywhere between 5 and 30 mph. one example: driving on a road and coming to a stop light... slowing gradually on regen braking, then i hit a part of the road where there is an uneven surface. regen braking stops and car coasts with no braking, sometimes for up to a second or two. this is a major concern as it could result in a car accident or pedestrian death. i have already had at least two near misses where i have had to slow or stop suddenly while braking in regen mode and the switch to hydraulic mode is severely delayed. this could have resulted in rear-ending a car in front of me. issue has been observed since i first obtained the car in july 2009. *tr | |||
| 12/03/2009 | 6700 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated his brakes are not holding when he steps on the brakes. the contact stated it feels as if he is braking on ice, sliding to make a stop. the failure is intermittent. the contact called the dealer and they stated they had not heard of this problem. the contact will be taking the vehicle in to be repaired.the failure mileage 6700. | |||
| 01/26/2010 | 60 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that the brakes would not respond when she depressed the brake pedal. the failure occurred on an intermittent basis (a total of 6 times so far). there were no warning lights. she had neither taken the vehicle to the dealership nor called the manufacturer to-date. the vehicle had not been repaired at the time of the complaint. the vehicle identification number was not available at the time of the complaint. the current mileage was approximately 800. the failure mileage was approximately 60. | |||
| 01/04/2010 | 4500 | 1 | |
| While braking and coming to a stop at an intersection, and if there is a bump on the road, the auto continues to move forward, even if you depress the brake completely, the auto continues to move forward, about another 10 to 15 feet. this has happen numerous of times and dealer says they have no answer to the problem. *tr | |||
| 01/24/2010 | 7900 | 1 | |
| My 2010 toyota prius under certain conditions will have a reduction in braking power. it will give the illusion of acceleration, but i believe the problem is a reduction in braking power. this problem has happened repeatedly and i frequently experience it in a location i regularly drive. as i approach a 4-way stop there is a bump that covers the width of my lane. as the front tires go over the bump the car feels like it start to take off just short of the stopping point. it quickly recovers and i am always able to stop, but the feelings is unnerving since it happens so close to the stopping point. i have contacted my toyota dealer, but they say they have no reported problems and did not even take any information. *tr | |||
| 01/20/2010 | 4500 | 1 | |
| When braking our 2010 toyota prius, the brakes sometimes release while the driver's foot is on the brake pedal. the driver needs to release the brake pedal and re-apply pressure for the brake to re-engage. the problem does not occur every day but it has occurred often enough that both drivers of our car have noticed this on several occasions during the six months that we have owned the car. it appears to occur more at speeds below 15 mph, on downhill slopes, in colder weather and on slippery roads. given the circumstances, the problem tends to happen when approaching intersections, where most braking takes place, making it a more dangerous defect. we purchased the car at the end of july, 2009. we reported the problem to the toyota dealership when the car was in for its first 5000 mile service in january, 2010. they road-tested the car but could not replicate our experience, so they could not diagnose the issue. *tr | |||
| 02/02/2010 | 2000 | 1 | |
| Toyota prius 2010 failed to stop at stop sign. i got a brand new toyota prius 2010 in late october 2009. most of the time the brakes have been very good however i noticed several times that when i press the brakes the car kept going for a good few seconds before it stops. yesterday i was in a small local road with speed around 28 mile/hr. when approching the intersection, i pressed the brake but the car was not slow down, i kept pressing the brake very hard and it finally stopped but the car was into the intersection already. thank god, there was nobody crossing the street. i googled prius 2010 brake problem and found there were many same complaints out there and since dealers could not reproduce the defect, they can not offer a fix. *tr | |||
| 11/15/2009 | 1000 | 1 | |
| Brake problem when on uneven surface or hill, sometimes turning. car hydroplanes and brakes do not work. has happened at least a dozen times since buying the car last august. three times have come close to hitting another car. reported problem to dealership. waiting to hear back. *tr | |||
| 12/01/2009 | 1 | ||
| While braking my 2010 prius there are times where the car appears to surge forward. the initial braking occurs fine but near the point of coming to a complete stop (ie less than 10mph) is when the surge occurs. initially i attributed this to icy road conditions but this has now occurred on dry pavement. the dash light indicating slippage of the car does not appear when this occurs. the problems seems to occur more often within the first 5 miles of starting the car. this surge does not occur everyday nor every time the car is started. it does not seem to be strictly temperature related although it has started occurring only in the winter (car purchased in july). *tr | |||
| 01/15/2010 | 3000 | 1 | |
| 2010 toyota prius brake problem. brakes do not work properly particularly in snowy day. *tr | |||
| 11/15/2009 | 8362 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that the brakes failed when driving over uneven pavement at low speeds. the contact also stated the vehicle lurched forward when braking under normal road conditions. the failure happens when driving over a speed bump or a pot hole. the vehicle was taken to the dealer and the contact was told to remove the floor mats but the problem persisted.the contact stated that the dealer was unable to duplicate the failure because it happens randomly . the manufacturer was contacted but the contact did not receive an acceptable answer from them. the failure mileage was 8,362. | |||
| 01/24/2010 | 10000 | 1 | |
| I have a 2010 prius and saw an article about there being possible brake problems with the model. i have had this problem probably about 6 times since i got the car last july and, when i mentioned it to the dealer, they said there wasn't anything wrong with the brakes when they ran the diagnostic. when it happens, i'm in the process of braking, and there's a push, almost like the brakes didn't take, followed by a loss of steering for a second or two. it's also happened to my husband one time. there doesn't seem to be any rhyme or reason as to when it happens (wet road vs. dry road, turning or going straight, flat or hill). i originally associated the problem with the brakes because i also have the sliding icon come on the dashboard when i'm completely stopped and lean forward in my seatbelt. however, i'm now wondering if it's not the brakes, but the transmission, since it sort of feels like it's not downshifting when it's supposed to, or it shifts back into a higher gear for a second while braking. i came to this conclusion after waiting in the car while it was running. with the car on, emergency brake on, but not in park, there was a definite jolt when the gas engine would turn on and then off again a few minutes later. although there hasn't been a crash yet, there were two times when it came really close to that, as i was turning and almost hit the cars on the side street that were in the left turn lane waiting to turn onto the street i had been traveling on. *tr | |||
| 01/28/2010 | 3000 | 1 | |
| On thursday, january 28th my wife drove our 2010 toyota prius to work. the was a slight coating of snow on the ground. less that one block from our house, driving at no more than 10-15 mph she applied the brakes to stop at a stop sign. she reported that the brakes seemed to lock (not the normal abs feel) and she lost control of the car, which then slid/skidded into a curb which punctured the front passenger tire. the car appeared to have only a punctured tire which was changed by a aaa service truck. after the tire was changed and the service truck left, i attempted to drive the vehicle to a nearby tire dealer. as i tried to drive the car, i heard and felt a loud scraping noise that sound and felt like the brakes were still engaged. even though i was now on clear pavement if i at all tried to apply the brakes,the abs went on, but in an aggressive manner. the abs also went on a couple of times even without me putting my foot on the brakes. the tire dealer said he thought we might have been the frame and told us not to drive the car. the car was towed to a nearby body shop to be inspected by our insurance company, state farm. as of february 2, 2010 no inspection has taken place. it is our contention that something malfunctioned with the brakes which caused the accident. *tr | |||
| 01/29/2010 | 5000 | 1 | |
| When braking at low speeds, if the car hits a manhole cover or uneven, bumpy road, there is a split-second loss in braking (which feels like acceleration since the driver expects to be decelerating at the time). other priuschat site users have complained about the same problem with the 2010 prius - some users claimed this was normal when the regenerative brakes switch over to hydraulic brakes and that there was really no loss in braking. it may be normal but it's scary as heck when it happens and if a pedestrian crosses in front of the car or a car in front of a 2010 prius stops quickly under just the wrong circumstances, i suspect an accident would result. *tr | |||
| 09/05/2006 | 1600 | 1 | |
| Brake on my toyota prius 2010. a few month ago, i was driving on a street with many potholes in san francisco. i was coming to a stop on a red light. i applied the brake to slow my prius. as i was applying the brake, the car's front wheel hit a pothole. i suddenly feel a total lose to brake on the car for a slight second as the car seem like/feel like surge ahead. a fraction of second later, the brake went back to normal. it was a very scary feeling. i did feeling unsafe. i talked to the master mechanic in the toyota dealer. he said the it is normal as the abs kick in when the car hit the pothole. it is doing it job. however, i had driven more than 5 cars with abs and vsc and never have the kind of issue. this only happen once. *tr | |||
| 01/25/2010 | 8750 | 1 | |
| My 2010 toyota prius has a serious braking problem, the car lunges forward after apply my brakes over a bumpy surface. this is very unexpected and luckily no one was in front of me otherwise i would have hit them. this already happened several times, took my car to the dealer and no solution, i don't know what to do with a brand new like this. *tr | |||
| 01/23/2010 | 300 | 1 | |
| I had my new toyota prius about 4 days. on saturday morning, 1/23/10, i was backing out of my driveway. there was ice, but when i gently put on my brakes, i felt nothing. two seconds later after sliding to the end of my driveway, the brakes caught. i was concerned that the feeling was quite odd, but chalked it up to the ice. then the next morning, it happened again when there was no ice, but wet roads, first coming to one stop light and then about 15 minutes later at another stop light. the same feeling--putting on the brakes and hitting air--then 2 seconds later the brakes grabbed. i immediately drove it to the dealership and left it, citing brake failure. they had it about 2 days and no one believed me. said it was fine. yesterday, 2/1/10, and again today, 2/2/10, it did it again to and from work. i do not feel safe in that car. something is wrong with the brakes. *tr | |||
| 02/01/2010 | 5300 | 1 | |
| When backing up the 2010 prius, the brakes grab. i release the brake pedal and reapply and each time the brakes grab. *tr | |||
| 01/15/2010 | 2300 | 10 | |
| I have been driving my 2010 prius for 6 months and have experienced the following nearly 10 times: when braking, if a pothole or bump in the road is hit, the car seemingly jerks forward/accelerates for a split second. this results in less control over where the car comes to a complete stop. the most unnerving instances of this occur when approaching the end of a road or a crosswalk. i nearly hit a child because of this unpredictable reaction to a pothole. also, the brakes are less effective in snow than any other car i've ever driven. no matter how slow i'm going or how hard i hit the brakes, i've found that i'm guaranteed to skid several feet, oftentimes into intersections/traffic. perhaps unrelated to the pothole issue, but maybe not. both issues are extremely dangerous. *tr | |||
| 02/01/2010 | 7400 | 1 | |
| While braking if i hit potholes the car speeds up from loss of braking action even thou i am still pushing on the brake pedal. i have to quickly let up and apply brakes again to stop vehicle. has happened three times now, twice in the last two days. first time thought it was my imagination, but now i know that i was pushing on the pedal and the car just took off until i reapplied the brakes. *tr | |||
| 09/10/2009 | 46000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that the brake failed to engage when he drove approximately 25 mph on rough road surfaces. the dealer stated that the abs engaged and that was a normal brake function. the failure occurred several times intermittently. the toyota manufacturer has not been contacted. the failure mileage was 46,000. | |||
| 01/31/2010 | 1321 | 5 | |
| This is a complaint about a recurring event that has serious implications in the wrong situations. for five times now, since driving our new car, our brakes have released after going over a bump in the road. this bump can be as small as a crack caused by a nearby tree's roots, or larger like a pothole. it has also occurred when driving over slick sewer covers. it typically happens when braking, then hitting the bump, then brakes release, and the car is no longer breaking. this is especially dangerous in hilly cities like san francisco, where if this happens going downhill, the acceleration accompanied by the lack of braking going downhill can result in crashing into the next car, or worse, hitting a crossing pedestrian at a cross walk. *tr | |||
| 12/19/2009 | 2000 | 1 | |
| My 2010 toyota prius brakes fail ( disengage or release) when braking on icy surface or while braking and a bump or pot hole is hit. i fist noticed this issue on dec. 19, 2009 after a snow storm but it continues to happen even on dry road when a small bump is hit. i reported it to toyota and they told me they could not find any issues with the brakes. nothing was done to correct the problem. the car actually goes faster when you hit a bump while braking. the brakes release and it feels like you have no brakes at all for a few seconds. this is not right! it happens very unexpectedly and you can not judge your braking time correctly. it happened to me recently when stopping at stop sign before entering a cross road. i hit a patch of rough road and it drove me to stop passed the stop sign and was lucky there were no on coming traffic. *tr | |||
| 08/06/2009 | 8000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 15 mph over a speed bump or pothole the vehicle accelerated for a few seconds while her foot was on the brake pedal. although the surge lasts for a few seconds and occurred consistently she doesn't have control of the vehicle. the vehicle was taken to the dealer who stated that the accelerator pedal was operating normally. the failure mileage was 8,000. | |||
| 01/28/2010 | 9536 | 1 | |
| 1. traffic came to a sudden stop so i hit the brakes. 2. vehicle hit a pothole while i was trying to stop and the brakes felt like they released. i had to hit the brakes again in order to gain control of the vehicle and bring the car to a stop. 3. i was told by the dealership that nothing could be done. *tr | |||
| 01/16/2010 | 4300 | 1 | |
| There is an apparent momentary loss of braking ability that we have experienced several times. going over a rise in the road, or bumps, and beginning a descent to an intersection, pressing the brake pedal seems to have no effect for about 500ms. this seems somewhat more pronounced when the road is wet, although possibly the explanation for this is we brake earlier in the descent as a precaution in less-than-ideal circumstances. we have made our local dealer aware of this at the 5k mile service appointment, and they acknowledged other complaints, and contact with toyota. they report that toyota is looking in to a fix. we are concerned about the ability to brake in an emergency situation with no safety margin. this seems reproducible. *tr | |||
| 11/03/2009 | 500 | 1 | |
| When i am braking and my car hits a pothole, it surges forward and the brakes do not work for a few seconds. this problem occurs every time i hit a pothole or bump in the road. *tr | |||
| 01/25/2010 | 6000 | 1 | |
| At a right turn i encountered a pothole and applied the brakes. when my car actually hit the pothole i felt, for a very brief time, that the brakes didn't work and the engine rev up a little bit. i was driving at low speed. i could have hit the car in front of me. *tr | |||
| 09/27/2009 | 25 | 1 | |
| I have a 2010 prius purchased in september of 2009. it now has just over 5000 miles on it. since the beginning, probably the first weekend i owned the car, when braking if i hit a bump in the road, uneven surface, or a pothole or something, the car often feels like it lurches forward and i have to immediately release and rebrake. the car feels out of control. i have very often felt like i narrowly missed lurching forward into the car in front of me. the toyota dealership service department insists they only know of recalls regarding the sticking accelerator pedals, nothing about this braking issue. yet i read plenty online about this problem, so i know it isn't only happening to me. what can you do?? i've listed all three types of brakes in the equipment area of this form, because i don't know what it is - something about the hybrid braking system also charging the engine? also i listed the date as the day after i bought the car but this is ongoing, not a single incident by any means. *tr | |||
| 12/15/2009 | 7000 | 3 | |
| 1. events leading up to failure: moderate braking (~0.2 - 0.4 g) at moderate speed (~20 mph) while driving over choppy pavement such as might exist where road work is being done. 2. failure: as the car passes over the choppy pavement, braking force declines sharply without a change in brake pedal pressure. the consequence of this is that the car stops farther down the road than expected despite reflexive increased brake pressure on my part. this has happened three times in 7500 miles of very moderate driving. so far i have not had a collision or other accident from this unexpected behavior. i have never experienced this behavior in any other car including dozens of rental cars. 3. what was done to correct the failure. nothing. tw* | |||
| 01/23/2010 | 3000 | 5 | |
| My 2010 toyota prius 1) lurches forward when braking while driving on an uneven surface, like a pothole, indent/crevice in road, etc. 2) the brakes repeatedly grab and cause the car to lurch when backing up on an uneven/slippery surface. both problems seem to happen when applying pressure and braking at a slower speed. this problem has occurred multiple times (approximately 4-5) since purchasing the prius in june 2009. *cn | |||
| 01/26/2010 | 8300 | ||
| Tl*the contact owns a 2010 toyota prius. whenever the vehicle travels over a rough terrain at any speed the contact noticed that the brake pedal released causing the vehicle to suddenly accelerate. the braking distance and pressure applied to the brake pedal also increased in order to stop the vehicle. the dealer stated that the failure could not be reproduced. there were no prior warnings. the current and failure mileages were 8300. | |||
| 01/21/2010 | 10200 | ||
| Loss of braking after hitting pot hole on freeway at low speed, less that 10 mph, similar to other incidences on this car.*cw | |||
| 01/21/2010 | 2500 | 1 | |
| I have experienced at least three times in my 2 month old 2010 toyota prius a lurch forward when braking when my car drives over a bump, pothole, or something slick. most recently i was driving downhill in dense traffic and the lurch felt like an acceleration. i had to slam on the brakes to avoid hitting the car in front of me. this braking problem clearly can be a hazard to safe driving and to any pedestrian or other close vehicle. *tr | |||
| 01/20/2010 | 200 | 10 | |
| 2010 prius. this has happened about 10 times now. sometimes when i brake, i experience a sudden acceleration. it ranges from slight to a lurch. when it first happened, i thought it was something on the road and ignored it. when it was more pronounced and happened a couple of more times, i brought it to the dealer. they said they had no other reports and could not replicate it. the service manager took me on a test drive and the car was fine. i knew this would happen as the acceleration is only occasional. i was advised to call toyota national, which i did, and was told that since this could not be replicated that there was nothing they could do and no recourse i had as the complaint could not be replicated. it has happened several times since, so i have paid close attention, as my heart has been racing, to the conditions. it has happened when i am braking while going over manholes, speed strips, cracks in the pavement. it feels like the tire is getting hung up slightly, doesn't get any traction.the brake malfunction light comes on. also, on the multi-information display, the indicator has just moved from eco to chg.the other day, it was 34 degrees and i was braking as i came up to a light and the car slid and vibrated. i was going about 5 miles an hour. there may have been some black ice or frost on the ground, but the shaking was intense and i had difficulty controlling the car for a few seconds until i stopped. *tr | |||
| 01/22/2010 | 4000 | 1 | |
| Yesterday, i once again experienced an issue that i have observed since i got my 2010 prius in october 2009. there are two intersections close to my home that both are at the bottom of a hill and have potholes about 5 yards from the stop sign. in both locations, when my prius hits the potholes, i have the sensation that the brakes release even though i am keeping pressure on them as i approach the stop sign. this does not happen with our 2007 rav4. i now know that i have to slow down as if the stop sign is before the pothole, but i worry about my wife driving it and about a condition that i won't be prepared for. *tr | |||
| 09/03/2009 | 1 | ||
| Car: prius 2010 (purchased in august 2009) problem: braking failure on uneven surfaces or potholes i feel very unsafe and dangerous whenever i hit uneven surfaces or potholes because i feel i am losing control over my own car, especially since i am in los angeles where roads are not that great condition. i almost hit people several times because the brake and hit several cars when i was braking.... and, the brake is so weak that it doesn't hold the car that well on the hills. it goes backward whenever i stop at the traffic light on the hill and driving. i tried to talk to the dealer who helped me with purchase, but he made me look like i am a bad/unsafe driver who doesn't know how to drive well. the incident happened shortly after i purchased the vehicle, but i thought it was really my fault to not handling the new technology car well. it is very regretful to purchase a vehicle like this with so much money. *tr | |||
| 01/15/2010 | 5000 | 1 | |
| Many times while braking, when i hit a pothole or bump, the brakes go out, causing the car to accelerate. i feel a loss of control, which is regained a few seconds later. it's led to several terrifying situations where i've almost hit the vehicle in front of me. *tr | |||
| 01/20/2010 | 14934 | 5 | |
| There have been several times when the brakes of my 2010 toyota prius have released, often when i hit a bump or am going over a hill. the car feels as if it's suddenly accelerating even though i am pushing down on the brakes. this has happened at least 4 - 5 times per week since i bought my car in july 2009. today, i was unable to stop as i approach an intersection despite pushing down on the brakes. the car hesitated and finally the brakes engaged. luckily no one was coming through the intersection for if there had been, i surely would have hit them. *tr | |||
| 01/20/2010 | 6200 | 4 | |
| When i am braking/slowing and turning and hit a curb or chunk of ice, or driving straight and hit a chunk of ice, my 2010 prius brakes will completely go away. this has happened 4 times during the past 3 weeks of winter weather. *tr | |||
| 12/20/2009 | 500 | 1 | |
| On several occasions my 2010 toyota prius accelerated for a few seconds as i placed my foot on the brake. on at least one occasion it happened as i went over a bump in the road. there has been no accident and no injuries. the acceleration occurred for a few brief seconds. i am concerned that this problem could occur when there is a pedestrian or auto close in front of me. *tr | |||
| 01/10/2010 | 5300 | 1 | |
| When i hit particular intersections or when the ground is covered with ice or snow, my brakes will begin to slow down the vehicle. but then they fail. i lose control of my vehicle. i have to re-push the brake pedal for it to actually brake. it is scary and dangerous because i have no control over my car when the brakes are out and one of these times it is going to cause an accident. since i purchased the car brand new in july, it has happened to me over 10 times. i only have 5300 miles on my car. i'm not sure what i can do to correct the problem. *tr | |||
| 01/20/2010 | 5000 | 3 | |
| Three times, twice with me and once with my wife, the automobile accelerated during braking. the acceleration (or loss of brakes, it's hard to tell) lasted for only a second, but enough where i had to press the brakes with force to come to my intended stop. i could have easily ended up in the middle of the intersection. *tr | |||
| 09/25/2009 | 600 | 1 | 08/01/2009 |
| Tl*the contact has 2010 toyota prius. the contact was engaging the brake pedal while driving 15 mph into a pot hole. once the contact drove into the pot hole the brakes released and she was forced to pump the brakes in order to stop the vehicle. the contact stated that there was a loud screeching noise as well. the failure mileage was 600. the current mileage was 5,600. *cn updated 02/17/10 | |||
| 01/17/2010 | 28000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that while driving in the rain 10 mph over a bump in the road he lost the braking power and the vehicle surged. the dealer has not been contacted. the failure mileage was 28,000. updated 02/19/10. *lj | |||
| 01/16/2010 | 500 | 2 | |
| Toyota prius 2010- car surged while braking to a halt. it felt as though i had suddenly lost braking power for a few moments, like i had hit an ice patch. but the road surface was dry. this was the second time it happened to me, the first about a week or 10 days ago. car was purchased on 1/4, delivered on 1/8/2010. the problem is not reproducible, but both times the car was moving at relatively low speed (10 mph or less). *tr | |||
| 01/10/2010 | 5000 | 1 | |
| I knew something was wrong, even before reading the online complaints about the 2010 prius and its braking problems that echoed my suspicions---- when sometimes braking over a pothole or railroad tracks or ice or any kind of bump, there is a surge of acceleration. to the extent that one time my 15 year old daughter said, 'what was that? i'd driven a saab 93 for 130,000 miles before we recently bought the prius--i never felt anything like this before. *tr | |||
| 09/30/2009 | 3000 | 2 | 08/01/2009 |
| Tl*the contact owns a 2010 toyota prius. while driving 45 mph and attempting to engage the brake pedal it extended to the floor; however, within a few seconds the brake would respond. she experienced the brake failure three times; during the second failure the brakes didn't respond and she collided into a vehicle and injured her neck. she has not taken the vehicle to the dealer since the failure occurred only when she hit a bump in the road. she will take the vehicle to the dealer to be diagnosed. the vin was not available. the failure mileage was 3,000 and the current mileage was 10,000. updated 03/09/10. *lj the consumer stated she experienced brake problems with her vehicle twice while slowing down to come to a stop or to make a turn. the consumer stated she felt a release of the brakes and a surge after hitting a pot hole in the road. two ago, while driving, she hit a bump in the road and she felt the same acceleration, like the gas pedal was applied, but she was braking at the time. the consumer was involved in an accident where she was rear-ended. she was at a stop with her foot on the brake. the consumer stated when she was hit, she was pushed forward and hit the vehicle in front of her. updated 05/13/10 | |||
| 01/13/2010 | 1200 | 1 | |
| When my vehicle is first started in the morning the brakes grab suddenly. this occurs at least twice a week. i have owned the new car for 1.5 months. i have not taken the vehicle to the dealer. *tr | |||
| 10/27/2009 | 1000 | 1 | |
| My 2010 toyota prius lurches forward when braking when i hit an uneven surface, like a pothole, indent/crevice in road, or other type of uneven surface. there is a loss of braking for approximately 1 second and you instinctively hit the brake again to regain braking. it is as if the car accelerates for a split second and you lose control before you hit the brake pedal again. it seems to happen when i am braking at a slower speed and coming to a stop. this problem has occurred multiple times (approximately 12) since i purchased and received my prius in september 2009. no accidents have occurred thus far because of this problem., but i am very concerned about this problem and my/others safety. i reported this problem to the toyota dealership i purchased my car from in october 2009. they performed a health check on the car to make sure everything was operating fine and reported that it was, and told me to bring the car back in if the problem continued. i went into the dealership to talk to someone on 1/13/10 to again discuss the problem. the dealership representative said they he is aware of reports of the problem and will get back to me with any new information. *tr | |||
| 01/10/2010 | 67000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 45 mph and applying the brake pedal, the vehicle would not respond. she felt the vehicle accelerating while attempting to brake. on one occasion, while depressing the brake pedal on a hill, the vehicle accelerated down the hill. this occurred on several occasions. the dealer was contacted and advised bringing the vehicle in for a diagnostic test. no repairs were made to date. the current and failure mileages were under 67,000. updated 04/01/10 *bf | |||
| 01/10/2010 | 6000 | 1 | |
| Braking irregularity on icy surfaces, vehicle feels like rear wheels skid 4-8 feet then all wheels grab when normal braking for a stop sign. enough deceleration to have seatbelt grab and dog projected into front seat area from rear cargo platform. same feeling as if brakes were locked up while moving on solid ice and the surface changed to dry road. *tr | |||
| 01/06/2010 | 2300 | 1 | |
| There appears to be a problem with the brakes on my 2010 prius. there is a sudden loss of braking force if i apply the brakes while rolling over uneven pavement. when it first occurred, it was on snow. once i sailed into the intersection. the second time, i almost rear ended the car in front of me. i went home and then drove my wife's acura in the same snowy conditions at the same intersections and didn't experience any problems. i know the problem wasn't due to weather conditions. i have since then been able to reproduce it in dry conditions. the common condition is braking over uneven surfaces. some people have said that it feels like sudden surge of acceleration. the gasoline engine isn't (usually) on while the car is braking. the surge isn't due to the electric motor malfunctioning because on smooth surfaces, it behaves as expected. i believe what they feel is a loss of braking power which makes the car feel like it is accelerating. some people have been told that this is normal abs behavior. i've owned several cars with abs and this is not the same nor what i would consider 'normal' behavior. it could be a combination of the uneven surface with abs, regenerative brakes, friction brakes, suspension spring rate and tires. while normal abs will exhibit less braking force and longer distances to stop when it is engaged, it isn't the same as this condition. or at least it shouldn't be this touchy to engage. when it happens, it is rather alarming. i really like this car. i think it is a great piece of automotive technology. however this needs to be addressed. i can't accept it being a normal quirk of the car. i travel with my wife and young kids in this car. if i can't be made to feel safe in the car, i will be trading it in sooner than expected. *tr | |||
| 12/19/2009 | 9500 | 1 | |
| Brakes temporarily disengage during braking if can hits a bump or pothole in the road. it is only a momentary instances before the brakes re-engage, but it gives the feeling of accelerating. it has happend to me about a half dozen times since purchasing the car (2010 toyota prius) in august 2009. luckily no cars or pedestrians were in front of me when this problem occurred. *tr | |||
| 01/03/2010 | 6500 | 1 | |
| I have noticed the brakes in our 2010 prius are not as effective as slowing the car as they were in our 2004 prius. on january 3 i was exiting the highway. as i was about to leave the highway while braking i encountered a slight bump in the pavement. i noticed that when this occurred the braking effectiveness dropped substantially, to the point where the car felt as though there were no brakes being applied. as soon as the bump was gone the braking effectiveness returned. *tr | |||
| 11/10/2009 | 1250 | 1 | |
| 2010 prius acceleration surge - when i drive over a sewer cover or any similar indentations in the roadway the vehicle surges forward in an aggressive manner. i need to apply the brakes or steer to avoid any object in the path of the vehicle. it is very unsettling and dangerous since the surge is strong and unpredictable. *tr | |||
| 09/01/2009 | 250 | 1 | |
| Our 2010 prius unexpectedly lurches when braking. this occurs when it hits a pot hole or when the surface is slick / slippery. it does it every time a certain pothole is hit - that is, we can reproduce the lurching. this lurching, which feels like an unexpected acceleration, significantly and unexpectedly increases the stopping distance. this has almost resulted in the prius striking the car in front of it. it makes it impossible to safely judge your braking distance in order to come to a safe stop because you never know when this phenomenon will occur. this also puts pedestrians in the cross walk at risk, since the ability to stop accurately is affected. we have taken the car to the dealer twice. they are able to reproduce the phenomena. however, they say that the car tests out within specifications, that there is nothing wrong with the vehicle, that it is just the way it is made, and that we just have to get used to it. they say there is nothing to fix or repair. they took another 2010 prius off of their lot and ran it over the same pot hole and it had the same problem. an article by paul a. eisenstein, msnbc.com contributor, updated 7:29 a.m. et, tues., dec. 29, 2009 describes exactly the problem we are having, and it seems to be related to the braking system. this does not seem to be a problem with only my vehicle - it appears to be a fleet-wide problem. having the brakes cut out unexpectedly is a major safety concern. we do not feel safe driving the vehicle. *tr | |||
| 12/15/2009 | 1 | ||
| I am writing in response to an article i read on msnbc.com where people mention a problem of which i have experienced the same thing. i have owned a 2010 toyota prius for 2 months/5,000 miles. on numerous occasions, i can feel the brakes slip. to be more exact, it feels as though, when i apply the brakes, the car lurches forward and then begins braking. there is a specific situation near my house where this consistently happens. it is when i am coming down a steep hill, and i apply the brakes to prepare for a right turn, the car performs as i mentioned before. it lurches, and then begins braking. *tr | |||
| 10/15/2009 | 2000 | 1 | |
| Once, when transitioned from smooth to uneven surfaces during a parking operation on uneven, downhill pavement, i experienced a lack of brake pedal pressure. i do not recall any change of acceleration, simply the loss of brake pedal pressure for a very brief time, perhaps for a second. it surprised and shocked me to a fair degree as i thought, at the time, that my brakes had failed. by pressing harder the brake pedal pressure returned and i was able to stop the car normally. i now take into consideration the pavement surface condition when applying my brakes as i feel the car's braking system is peculiarly sensitive to uneven pavement surfaces. *tr | |||
| 12/23/2009 | 7400 | 1 | |
| I have a 2010 toyota prius. while driving behind a car on 17th street in manhattan the car in front braked coming to a light i in turn hit the brakes and hit a pot hole at the same time, the car's brakes seemed to jump or release and i had to push down in a panic to try and control the car, i missed slamming into the car in front by inches. *tr | |||
| 12/22/2009 | 2900 | 1 | |
| In my 2010 toyota prius, as i'm braking on a rough surface, it feels as though the car accelerates for a split second. it happened most recently on 12/22 as i was coming to a stoplight on a road with patches of snow/ice debris in cambridge, ma. it has occurred maybe 5 times since i bought the car in august, and at first i thought i was just imagining it. when it happens, my heart races and i press the brake harder, which seems to make it engage. the end result is that the stopping distance is longer than it should be, and it's definitely scary. i took the car into the dealership on wednesday, december 23rd to have it checked out. the car was approved as functioning as normal, with a write-up saying the master mechanic looked at it, took it for a drive on a bumpy surface, and cleared it as fine. the client services manager explained that i just needed to get used to the sensation when the abs kicks in. *tr | |||
| 12/15/2009 | 1000 | 1 | |
| Something weird happens when i am braking. as i am slowing and braking evenly, there is a very brief surge like i hit the accelerator, but my foot is no where near the accelerator. it feels like the brakes are not working at all for a brief moment. it seems to happen when i hit a bump, but it can also happen for no apparent reason. it has happened about 5 times now and it seems to be increasing in frequency. it also happened once when my boyfriend was driving it. *tr | |||
| 12/12/2009 | 9000 | 1 | |
| Car hit bump or pothole on the freeway, while braking, braking power was significantly reduce for a short period of time. *tr | |||
| 12/20/2009 | 4500 | 1 | |
| I have driven my 2010 prius (which i bought new from local toyota dealer) since july, 2009. i have noticed on several occasions that when the car drives over a break in the pavement (pothole, or roadwork where the pavement height drops), it suddenly feels airborne, and will not brake or slow down for several yards, no matter what i do. i have worried about not being able to stop and hitting a car or a pedestrian front of me, but so far each time my car has had this airborne-like problem, i have been far enough away from the car or person in front of me to stop. other people driving 2010 prius cars have reported having the same problem. toyota should be required to solve this braking issue, and recall the 2010 prius to repair this problem. *tr | |||
| 12/30/2009 | 4425 | 1 | |
| 1. applying brakes normally, but during braking hit a bump, or a seam in the road, or wet pavement, or small patch of ice. 2. abs system kicks in, however appears to kick in too aggressively and all braking force seems to disappear while car feels as if it is accelerating. maintaining brake force or re applying brake eventually brings car to halt. 3. nothing has been done to remedy this. no warning lamps are lit, etc. i will call toyota tomorrow. have owned car since new, about 6 months, and this scenario has occurred several times now. *tr | |||
| 12/30/2009 | 2000 | 1 | |
| I have a 2010 toyota prius (purchased in october 2009). i have noticed on several occasions the brakes momentarily don't work after going over a bump. i feel a lose of control of the car. *tr | |||
| 11/10/2009 | 700 | 1 | |
| On nov. 3, 2009, i purchased a prius iv 2010. on nov. 10 coming to red light on a dry road. brakes gently applied. right front tire hit a bump in road. car slightly accelerated before brakes kicked in. it has happened a few more times since then. in each case, the road was drive. every time when brakes are applied and car then rolls over a bump or hole in pavement this acceleration occurs. last time was on dec. 15. east houston in nyc. coming to a light. brakes applied. car was almost at a full stop. tires touched on good sized flaw in the pavement and the car slightly sped up. i was really fearful that time the prius was going to hit the car in front. *tr | |||
| 11/19/2009 | 3500 | 1 | |
| The roads were covered with snow and were quite slippery. i was coming down a hill to a stop sign at about 10 mph. i hit the brakes lightly, the abs engaged (i could hear/feel the brakes pulse), but the car didn't slow down much. i jammed on the brakes, the abs was still engaged and the car finally stopped in the middle of the intersection, again slowing down very slowly. if it had not been a four-way stop, somebody would have hit me! i kept driving and the same thing kept happening to me: i hit the brakes, the abs engaged and the car stopped very slowly. in some cases, it felt like the car even accelerated a little bit before finally (and slowly) coming to a stop. i am a mechanical engineer and used to work for general motors - i have driven lots of cars - and this has never happened to me before. i immediately drove home and drove my 2002 honda civic (which does not have anti-lock brakes) down the same road. while the car did slide in the snow, it stopped in about one-third the distance of my prius. there is definitely something the matter with the braking system and/or the traction control system when the abs engages. *tr | |||
| 12/22/2009 | 5172 | 4 | |
| I have a new toyota prius 2010 and have experienced the loss of braking combined with a simultaneous acceleration about 4 times now. it is incredibly scary. i have never had this happen on any other car that i've driven. it happens when i hit a bump in the rear. i now see that many people are experiencing this as i saw an article on msnbc.msn.com. i now see that others are experiencing the same problem. this has to be investigated. the last time it happened i was facing a cliff and had the car not stopped, my daughter and i would have gone off the cliff and probably would have perished. this is asking for accidents to happen and something must be done to fix this problem. there are way too many of these cars on the road. i do not have the win number on hand, but will add it tomorrow. this has occurred approx 4 times and the car accelerates at the same time i lose braking capabilities. *tr | |||
| 10/15/2009 | 200 | 1 | |
| 2010 toyota prius, 4500 miles while braking, the car hit a set of flush railroad tracks. the bump of the tracks caused the braking system to feel like it stopped working, and i had to re-pump the brakes to get braking to re-engage. the car has had a couple more similar episodes of the brakes seeming to dis-engage. *tr | |||
| 12/27/2009 | 2000 | 1 | |
| While braking, my car hit a bump and it felt like there was a sudden surge of acceleration. i had to press the brakes extra hard to feel like i regained control of the car. this is definitely a repeatable problem, just drive the car over a pot-hole or a bump while you're breaking to recreate the condition. *tr | |||
| 09/05/2009 | 1000 | ||
| Tl* the contact owns a 2010 toyota prius. she experiences poor brake functionality during brake application. the vehicle was taken to a dealer for inspection. the technician could not duplicate the failure, so he could not provide a remedy. the failure mileage was 1,000. | |||
| 09/01/2009 | 500 | 1 | |
| There are times that on my 2010 prius that the brakes seem to fail. if there is anything in the road (i.e raised lane markers, potholes, raised concrete) that the tire engages in during braking, it takes longer than it should to make a safe stop. also, when i park on a slight incline there seems to be braking issues where the car 'jerks' when i am in reverse. these two issues continue on a regular basis. *tr | |||
| 12/28/2009 | 12000 | 1 | |
| Coming up to stop sign, perhaps 25mph, at intersection of service roads leaving workplace. car coming (also probably 25mph) from the left. there was some light snow (not covering), but nothing unusual. applied brakes to stop. brakes worked at first, but then seemed to stop working for several seconds, leaving my wondering if i was going to go through the stop sign and have a slow-speed collision with the car coming from the left. luckily the brakes eventually seemed to grab, and the car rolled to a stop right at the intersection. *tr | |||
| 12/28/2009 | 4500 | 1 | |
| It was snowing and very slippery. i was slowing down and turning into my driveway when suddenly it felt like i had no brakes. this is different from abs which had gone off occasionally during the trip. as a result i ended up hitting a snow bank at the end of my driveway. *tr | |||
| 12/18/2009 | 200 | 1 | |
| Events leading up to failure: hitting the brakes and hitting a bump in the pavement of the road at the same time. how often: all the time, if you are hitting the brakes, and hitting a bump at the same time. what was done: nothing. toyota claims nothing is wrong. *tr | |||
| 08/15/2009 | 500 | 1 | |
| 2010 toyota prius brake failure. everytime while braking if there is a bump or on even a slight bit of ice on 1 wheel only, the brakes will release completely and go back to accelerating rather than braking. it happens when i exit the highway and there is a change in surfaces from tar to concrete. it happens very often and can happen anytime. this occurs at any speed from 10mph up and i have experienced it from 10mph and as high as 55mph. the problem first occurred around 500 miles on the car and i now have over 8500 miles. this started in august around the 15th. i have a 2007 hummer h3 and i have compared the braking with the same conditions and speeds and the prius is not responding correctly. the hummer brakes even with the changes. i have also compared on a 2006 volvo s60. these brakes are failing and it will eventually result in a crash or a pedestrian being struck. there is no pulsing of the breaks there is only releasing for ice or for any surface other than perfect. there should be some type of repair or recall immediately. i have noticed this but thought it was only me until i saw the msnbc article. i will not let my wife drive this car since she is pregnant. it is not safe. while sitting at traffic lights the traction control light keeps turning on and blinking and will lock the brakes until the gas pedal is pressed. i have never had an anti-lock or any type of breaking issue in 15 years of driving various vehicles. *tr | |||
| 07/13/2009 | 6000 | 1 | |
| Tl* the contact owns a 2010 toyota prius. occasionally when he drivers over a rough terrain or speed bumps when attempts to apply the brakes, the brakes will not function for several seconds. the vehicle has not been diagnosed by the dealership. the current and failure mileages were 6000. updated 01/29/10 *bf updated 02/01/10.*jb | |||
| 12/24/2009 | 700 | 1 | |
| In reverse car speeds and brake stiffens and unable to slow reverse speed. also, two times while accelerating at 25 miles per hour the car seemed to lift up then settle down. very frightening. *tr updated 02/02/10 *bf the consumer stated when the vehicle was in reverse, the brakes froze. the day after the vehicle was at the dealer, the consumer parked on a small incline, the front facing up. when she started the vehicle, she pushed the start button, put the vehicle in reverse, disengaged the emergency brake, and immediately the brakes froze and the consumer started to go backwards without control of the backing up the car. the consumer was unable to control the backwards movement so she immediately shut down the power. she then started the vehicle again, put it reverse, disengaged the emergency brake and everything was normal. updated 03/01/10 updated 05/05/10.*jb | |||
| 10/20/2009 | 300 | 1 | |
| I have a 2010 toyota prius (generation 3). purchased on 10/15/2009. i have experience unexpected loss of braking when decelerating to about 5-10 mph and when the vehicle hits or goes over a bump. this have happened multiple times. there were no property damage, however, the unexpected loss of braking and a feeling of acceleration is unsettling. i feel this may eventually lead to a vehicular collision. *tr | |||
| 12/01/2009 | 5500 | 1 | |
| While braking over a rough surface such as potholes, train tracks or just rough pavement, the brakes feel like they cut out for a brief (well under a second) period. this could be abs activating or it could be the changeover from regenerative braking to friction braking or something i am not aware of. i would describe the feeling as floating or hitting a patch of extremely slippery ice or like my foot has slipped off the brake pedal. i am confident that this event increases stopping distance but i have no idea how much and it may only be inches. i know from reading, this has been reported years ago with the previous generation prius. overall, i am extremely pleased with the car but this is something i believe should be investigated. oh yes, it is fairly easy to reproduce and has happened to me 3-5 times in the 6000 miles i have driven the car. it is not nearly as terrifying now as it was the first time but when it happens it definitely grabs your attention! it has not caused me to get in an accident but i believe the potential is there for an accident to occur. *tr | |||
| 12/11/2009 | 8917 | 1 | |
| I own a 2010 toyota prius, and like many have experienced the brakes cutting out when slowing down and going over a rough section of road. i drive throughout the houston, texas area and have had this issue happen many times, usually unexpectedly. there are a few places i drive regularly that create the issue and i anticipate them and adjust my driving accordingly. *tr | |||
| 09/01/2009 | 1 | ||
| 2010 toyota prius with 2500 miles. since purchased on 8/2009, i had more than ten experiences of unexpected acceleration (sudden unintended acceleration) on reverse that feel like two or three time (stronger) faster than normal reverse. accompany the higher speed reverse, a heavy, abrupt braking with a slight touch of the brake during this event. the big jerk (braking) rock the entire car and banged heads again the headrests.this only happened with electric mode and most time with the car parked a slight incline. this unintended acceleration sometime happen a few time a day or it can go two, three weeks without any problem. the dealer can not find anything wrong with my car. and toyota have no information about this problem. however, if you go to priuschat forum under gen iii 2010 prius main forum-braking in reverse, there are many people with the same problems. i strongly believe this is very dangerous if a new driver get in my car and not know about it. there is one post in priuschat forum that best explain the problem: just yesterday, my prius-iii backed up with sudden unintended acceleration, with my foot only on the brake pedal.... i recognized what was happening because it happened once before, just over 2 months ago. just a few days after i got the car. when i was backing out of an inclined driveway... i suspect that some unusual element of the timing of turning the car on and shifting into reverse, and possibly the internal state of the computer and the hybrid power system combine to produce this abrupt reverse acceleration as i am gently easing off my foot pressure on the brake pedal... the abrupt braking effect does occur, but only in response to the much more dangerous unexpected, unintended reverse power (acceleration), to stop the car motion. no matter how gently the brake is eased further on to stop, the stop is abrupt by garygid orange county, ca. i am trying to work with toyota on this issue. thank you. *tr | |||
| 12/14/2009 | 4000 | 1 | |
| 2010 prius freewheels if you hit a bump while braking. this occurs every few weeks. nothing has been done to correct. *tr | |||
| 11/13/2009 | 8100 | 1 | |
| I was unable to slow down going into an intersection at a reasonable rate of speed. while i was not accelerating, when i applied the brakes the car did not slow down as i would have expected. this same behavior has occurred in the past several months since i've owned the prius 2010 model. it seems to skip forward or accelerate while braking on a downhill or uneven surface. by the time i was able to stop i the airbags had gone off and i had hurt my neck and back. it is a new vehicle that now has almost $14,000 damage and won't be fixed for a month. if anything, i'm an overly cautious driver and wondering what i could have done to avoid the accident. *tr | |||
| 11/20/2009 | 1000 | 1 | |
| My 2010 prius v has very jerky brakes sometimes when starting out. causes all people in car to be jerked around. many other prius 2010 owners report same problem. toyota denies knowing about problem in spite of many complaints! *tr | |||
| 10/23/2009 | 10 | 1 | |
| I bought a brand new 2010 toyota prius and left the dealer on october 23, 2009. i had to stop short at one of the stoplights on the way home and noticed a disturbing lag before the brakes engaged. hours later i was driving down a major highway when traffic stopped suddenly and the brakes would not engage. i rear-ended the car in front of me and modestly damaged the car i hit and severely damaged my new prius. fortunately noone was hurt. my six year old son was in the back seat. *tr | |||
| 10/16/2009 | 440 | 1 | |
| Please investigate the 2010 prius and its' braking system. while braking on a wet pavement, going down hill or braking when the car goes over an uneven or bumpy service, the car accelerates or lurches forward. fortunately, i was a safe distance from other cars or could have hit something with this surge effect. the car only has 400 miles and this has occurred at least 4 times, the most recent today on a hill with wet pavement as the car was heading down hill. the brake was gently depressed and the car surged forward. *tr | |||
| 08/15/2009 | 1000 | 6 | |
| Tl* the contact owns a 2010 toyota prius. while driving over large and small speed bumps the vehicle accelerated without warning. as a consequence his risk for serious injury and crash were increased. he is in the process of having the vehicle inspected to determine the cause of the failure. the failure and current mileages were 1,000. updated 09/14/09 *bf the consumer stated on 6 separate occasions , with 2 different drivers, sudden, brief and unexplained engine acceleration was experienced when a bump was hit in the road while applying the brakes. the driver could hear the engine rev up and there was a surge of power from the engine despite his foot not being on the accelerator, but being on the brake. in each of the 6 incidents the consumer and second driver were able to stop safely, bit were put at risk of an accident and/or injury due to the erroneous acceleration. updated 09.15.09. *jb updated 10/13/09. *lj the consumer stated the cruise control was not engaged and it didn't feel like the anti-lock brakes engaged either. updated 10/13/09 the consumer also experienced braking problems as well. the consumer stated the problem has greatly diminished. updated 02/05/10. | |||
| SERVICE BRAKES, HYDRAULIC - ANTILOCK | |||
| 09/01/2011 | 1 | ||
| 2010 toyota prius. consumer states when one of the front tires travels over uneven payment specifically an indentation in the road the braking action fails momentarily *tgw the consumer stated the vehicle lunged forward a few feet, before the brakes engaged again. the dealer informed the consumer the issue had to do with the abs/trac system. *jb | |||
| 02/26/2011 | 9930 | 3 | 09/04/2010 |
| 2010 toyota prius. consumer states problem with the abs system *tgw the consumer stated the first time he went to the dealer for the abs problem, they were unable to find a defect. one month later, the consumer returned to the dealer and they reprogrammed the abs and the brakes worked fine for about one week. soon, the brakes began slipping again and ultimately, the consumer crashed into another vehicle. the consumer stated it seemed the brakes would fail when he applied the brake, released his foot and then braked again. *jb | |||
| 05/17/2010 | 1 | 08/01/2009 | |
| 2010 toyota prius. consumer states vehicle did not seem to stop immediately when he hit a bump. *tgw | |||
| 04/30/2010 | 11100 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated while driving at speeds of 15 mph and attempting to brake, the anti lock braking system failed and the brakes would not engage. the dealer was unable to duplicate the failure and advised the contact that there was nothing wrong with the vehicle. previously, the contact received repairs to the service brakes and electronic control module under an unknown recall and stated the failure was not the first occurrence following recall repairs. the failure mileage was 11,100 and the current was 11,500. | |||
| 04/06/2010 | 1 | ||
| 2010 toyota prius. vehicle repair was covered under a recall, but after a no brake incident consumer questions the repair. *gr the consumer stated the recall was performed on april 3, 2010. however, on april 6, 2010 he hit a slight bump as he applied the brakes and had a momentary feeling of having no brakes. the vehicle did stop. however, the instance did lead the consumer to question the adequacy of the fix. *jb | |||
| 04/23/2010 | 6239 | 1 | 09/28/2009 |
| 2010 toyota prius. the consumer stated he experienced two safety issues; loss of brake effectiveness and engine race *tgw when the consumer applied the brakes when going over bumps/rough roads, or in marginal conditions due to snow/ice when approaching a stop sign, he would lose braking effectiveness. the consumer took the vehicle to the dealer for a recall repair on march 24, 2010. however, he continued to experience loss of brake effectiveness. the consumer pulled into a neighbor's driveway after driving less than one mile from his home. after pushing the park button, but before pushing the power button, the engine began to race. it was not at an extreme high rpm and it was not for an extended period time, but it did last for several seconds. after the vehicle went down to normal rpm, after a s second or two, it began all over again. the consumer stated it was not a surge as the vehicle was not in gear at the time. *jb | |||
| 04/01/2010 | 1 | 09/22/2009 | |
| 2010 toyota prius. consumer states brake problems. *tgw the consumer stated it appeared as if the software patch for the 2010 prius was not enough as he has experienced one more occurrence since getting the patch on march 1, 2010. prior to the software patch, the consumer experienced brake stuttering may be 10 times. the consumer stated he read where the switch from regenerative to mechanical braking occurred at about 9 mph he noticed that the brake stuttering seemed to occur closer to 20 mph. it would not just occur when hitting a small pothole, but sometimes with just steady braking on smooth surfaces. on a smooth surface, the feeling would be a bit of a jerk. he would decelerate with pressure against the seat belt and his hands on the steering wheel, then there would be 1/4 of a second where there was no pressure because the brakes were not working, then he would jerk forward as the brakes began to work again, there was a somewhat different sensation when hitting a small pothole. the most recent momentary brake failure occurred while stopping for a red light. the consumer stated he slowed down to 20 mph when he felt a different type of stuttering than previously. it may have been a double stuttering, but it seemed harder. *jb | |||
| 10/13/2009 | 30 | ||
| Tl*the contact owns a 2010 toyota prius. the contact was driving approximately 4 mph when the brakes were applied, the anti-lock brake system warning light illuminated on the instrument panel and the brakes began to lock. the vehicle was taken to an authorized dealer. the technician confirmed that the brakes were not operating properly after test driving the vehicle. the vehicle remained at the dealer for further inspection. the contact was provided a loaner vehicle. the technician stated that after the final inspection the brakes were operating normally. the failure mileage was 30. the current mileage was 5,500. | |||
| 08/01/2009 | 1 | 07/08/2009 | |
| 2010 toyota prius. consumer states rear brakes released or slipped and vehicle sped up. *tgw the consumer stated within the first month of driving, she drove over an uneven, perhaps potholed area in the road and it seemed as if the vehicle's rear brakes released or slipped, and the vehicle sped up. the vehicle then seemed to correct itself and drove smoothly ahead with proper braking. *jb | |||
| 12/16/2009 | 4500 | 1 | 10/03/2009 |
| Tl*the contact owns a 2010 toyota prius. the consumer stated as he began to slow down and applied the brakes. the vehicle traversed a portion of the roadway that had some potholes on it and the brakes released for what seemed a second. the consumer was doing about 30 mph and pressed the brake pedal more firmly. it seemed as the vehicle was attempting to use abs in a condition that it deemed was an uneven roadway/icy road conditions. however, the condition at the time was bare and dry. the consumer believed that the vehicle would operate as expected in dry smooth roadway conditions, but when the road surface was bumpy or slick, the abs system would act as if the vehicle were going to slide. the dealer performed the software update to alleviate the problem. failure mileage was 4,500. *updated 03/01/10 *bf updated 05/10/10*jb | |||
| 01/10/2010 | 3500 | 1 | |
| 2010 toyota prius anti-lock brakes fail to stop skidding on minor ice. *tr | |||
| 08/15/2009 | 2000 | 1 | 06/29/2009 |
| Tl* the contact owns a 2010 toyota prius. the consumer stated the problem has occurred a total of 4 to 5 times. the dealer was contacted and they stated that they never heard of this problem and if it occurred again to give toyota a call. there have been no repairs done to the vehicle. the failure mileage was 2000 and current mileage was 8200. updated 3/17/10 *cn the consumer stated when he approached a stop light at the top of the ext ramp, at less than 35 mph, he encountered a bumpy surface in the road and the brakes seemed to suddenly release and the vehicle rolled ahead. the brakes seemed to re-engage moments later, preventing the vehicle from hitting in car ahead. it was a moderate stop on dry pavement with consistent pressure on the brake pedal. updated 05/20/10 | |||
| SERVICE BRAKES, HYDRAULIC - ANTILOCK - CONTROL UNIT/MODULE | |||
| 05/31/2012 | 3 | 08/01/2010 | |
| 2010 toyota prius. consumer states two brake system failures *tgw the consumer stated the vehicle began making an unusual sound and after a few days, numerous warning lights appeared on the dashboard announcing a failure of the braking system. the vehicle was towed to the dealer. an inspection revealed the master cylinder, booster and ecu needed to be replaced. the consumer paid $ 3,246.83 for the repairs. however, nine days later, the unusual brake pedal sound returned, but the brakes worked and no warning lights appeared. the next day, the brake system completely failed while his daughter was driving the vehicle. again, the vehicle was towed to the dealer, where the technicians determined the vehicle needed a new brake booster assembly. the consumer was informed he would only be responsible for the labor costs of $ 255.48. the consumer believed the booster and brake booster were the same part, which was supposed to have been replaced several days prior. jb | |||
| 03/03/2010 | 7500 | ||
| Tl*the contact owns a 2010 toyota prius. the contact received a recall notice for recall 10v039000 (service brakes, air:antilock:control unit/module) which was performed. however, the contact stated that the problem still occurred and whenever she drove over a bump in the road or an uneven surface and depressed the brake pedal, there was a loss of braking and the vehicle would lurch forward. the vehicle had not been taken back to the dealership at the time of the complaint. the failure mileage was approximately 7,500. the current mileage was approximately 10,000. | |||
| 04/29/2010 | 5800 | ||
| Tl* the contact owns a 2010 toyota prius. while driving at speeds of 5 mph over a pothole with the brakes applied, the vehicle abnormally lunged approximately fifty feet forward. the dealer was contacted but did not provide any assistance. the vehicle was not repaired or diagnosed. the failure and current mileages were 5,800. | |||
| 03/19/2010 | 9000 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that the vehicle was taken to the dealer for repairs under nhtsa recall campaign id number 10v039000 (service brakes, air: antilock: control unit/module). since the vehicle was repaired the brake pedal would fall onto the floorboard when the brakes were applied. there was a hesitation in brake engagement and the contact had to use the emergency brakes in order to stop the vehicle. the manufacturer was contacted but would not provide any further assistance. the vin was not available. the failure mileage was 9,000 and the current mileage was 12,000. | |||
| 04/21/2010 | 4860 | ||
| Tl*the contact owns a 2010 toyota prius. the contact was driving approximately 40 mph on wet road conditions and encountered a pothole. the brakes were engaged with a delay response period between 5 to 10 seconds. the vehicle was able to slow down and continued to travel. the vehicle had a prior recall repair on march 1, 2010 under the nhtsa campaign id number 10v039000 (service brakes, air: antilock: control unit/module). the remedy repair was insufficient and failed to correct the problem. the manufacturer was notified of the malfunction. the contact was waiting for a response from the manufacturer for resolution. the failure and current mileages were 4,860. | |||
| 03/23/2010 | 11000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact was driving approximately 25 mph on a rough road surface and over a pothole. when the brake pedal was applied, the vehicle surged forward with no power response. the vehicle was taken to the dealer for a recall software repair. the nhtsa campaign id number was unknown. the contact was uncertain of the recall remedy. the failure continued to occur after the recall repair was performed. the brakes were engaged four to five times without a response. the contact was expecting a response from the manufacturer within the next two days. the failure mileage was 11,000. | |||
| 03/13/2010 | 6800 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated he previously received repairs under nhtsa campaign id number 10v039000 (service brakes, air: antilock: control unit/module). prior to the recall, the contact had experienced a delay in brake response when traveling over rough road surfaces. following repairs, the failure persisted but would occur on various road surfaces, including flat and dry surfaces. the failure mileage was 6,800 and the current mileage was 7,300. the vin was not available. | |||
| 02/05/2010 | 1 | 01/30/2010 | |
| 2010 toyota prius iii. the consumers daughter was involved in an accident. the brakes did not stop the vehicle when they were applied. she collided with the vehicle in front of her, which then hit another vehicle. *jb | |||
| 02/19/2010 | 11000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact was driving approximately 7 mph on a bumpy road surface. when the brakes were engaged the vehicle surged forward. whenever traveling between 55 mph on bumpy road conditions the failure occurred intermittently. the vehicle was taken to an authorized dealer. the technician was unable to duplicate the failure. the vehicle had prior recall remedy associated with nhtsa campaign id number 10v039000 (service brakes, air: antilock: control unit/module). the failure occurred after the recall service repair was performed on the vehicle. the failure mileage was 11,000. the current mileage was 12,657. | |||
| 03/25/2010 | 11000 | ||
| Tl* the contact owns a 2010 toyota prius. while driving the vehicle at a speed of 25 mph, the vehicle continued to accelerate even after the brake pedal was applied when driving on a rough or bumpy surface. this incident occurred about forty times since the vehicle was purchased. the vehicle was taken to the dealership on two occasions. on the second visit to the dealership, the dealer updated the computer software in the vehicle. however, the update did not remedy the problem. the current and failure mileages were approximately 11,000. | |||
| 12/05/2009 | 2 | 06/15/2009 | |
| 2010 toyota prius. consumer states brake failure in which the malfunction happened twice and caused an accident. *tgw the consumer stated the factory defect was not brought to light until after the second incident. although, toyota corrected the brake issue, the consumer has costs and outstanding problems with the vehicle because of the damage done in first incident, including problems with the wheel bearing. the consumer is requesting toyota reimburse him for monies paid to fix the vehicle and also to fix the wheel bearing that was not identified and not replaced. the consumer stated the first incident happened when he was about to make a right turn. there was snow on the roads and as he was making the turn, traveling about 9 or 10 mph, he started sliding toward the curb on the other side. he tried to brake, but he continued to slide. an instant before he hit the curb, the anti-lock brakes activated, but it was too late. he slid into the curb with the wheel turned, broke the wheel rim and flattened the tire. the second failure occurred when he was coming out of a mall parking lot heading toward a main street. the consumer stated he was coasting to the stop sign and applied the brakes, but nothing happened. he pushed them as hard as he could and again at the last second the anti-lock brakes activated. *jb | |||
| 12/28/2009 | 400 | ||
| Tl*the contact owns a 2010 toyota prius. while the contact was driving 5 mph traveling over an icy road surface, the brake pedal was engaged causing the vehicle to slide. suddenly, the vehicle crashed into a snow bank. the anti-lock brake system was inoperable during the failure. there were no prior warnings. the vehicle has not been diagnosed by the dealer. the current and failure mileages were 400. | |||
| 03/17/2010 | 6905 | ||
| Tl* the contact owns a 2010 toyota prius. while driving at speeds of approximately 25 mph on normal road conditions, the engine stalled without warning. after several attempts, the engine was restarted and the vehicle resumed normal operation. the dealer was contacted in regards to the failure. recently, the vehicle was repaired per nhtsa campaign id number 10v039000 (service brakes, air: antilock: control unit/module). the contact was concerned that the recall repairs were insufficient and potentially caused the recent failure. there were no further repairs. the failure mileage was 6,905 and the current mileage was unknown. | |||
| 02/24/2010 | 11000 | ||
| Tl*-the contact owns a 2010 toyota prius. the contact was driving approximately 45 mph. when braking there was a delay response. the failure occurred three days after the recall remedy repair was performed on the vehicle. the recall was under nhtsa campaign id number 10v039000 (service brakes, air: antilock: control unit/module). the manufacturer was notified of the malfunction and there was no resolution. the failure mileage was 11,000. | |||
| 03/04/2010 | 3500 | ||
| Tl*the contact owns a 2010 toyota prius. while driving at 20 mph traveling over a pot hole the contact noticed that the vehicle had suddenly accelerated without warning. in order to stop the vehicle the brakes were applied. the failure mileage was 3,500 and the current mileage was 3,700. | |||
| 02/26/2010 | 10000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 30 mph the brakes were engaged with a slow power response. the vehicle had a prior recall repair under nhtsa campaign id number 10v039000 (service brakes, air: antilock: control unit/module). the failure occurred intermittently. the failure mileage was 10,000. the current mileage was 10,600. | |||
| 02/26/2010 | 1300 | 1 | 12/29/2009 |
| Tl*the contact owns a 2010 toyota prius. whenever the contact attempts to brake while traveling over a rough surface the brakes will hesitate to engage increasing the stopping distance. prior to the recent failure the contact had taken her vehicle to the dealership where nhtsa recall # 10v039000 was performed on her vehicle. the current and failure mileages were 1300. updated 05/10/10 *bf updated 05/10/10*jb | |||
| 03/03/2010 | 10500 | ||
| Tl*the contact owns a 2010 toyota prius. the driver stated the her vehicle was recently repaired per the vehicle speed control recall. the failure continued to occur. immediately after the repair was made, she was driving 30 mph over a pothole; however, when she engaged the brake pedal, the vehicle accelerated. the vin was not available. the failure mileage was 10,500 and the current mileage was 11,000. | |||
| 03/09/2010 | 65000 | ||
| Tl* the contact owns a 2010 toyota prius. she confirmed she has experienced brake failure several times in the vehicle. while attempting a right turn over railroad tracks with her foot on the brake pedal, the vehicle abnormally lunged forward and began to accelerate. she continued to depress the brake pedal until the vehicle came to a stop. she also noticed that when driving uphill, the vehicle was hesitant to accelerate. the vehicle had not yet been taken to the dealer for inspection. the failure mileage was 65,000 and the current was 96,077. | |||
| 05/18/2009 | 14905 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that as she was coming to a stop and the road was wet when there was gravel on the road the brakes would not engage while being depressed. the vehicle lunged forward and hit the curb a couple of times. when driving at a high speed and slowing down the brakes did not hold and a crash almost occurred. the contact stated that on several occasions brake failure occurred since the vehicle was purchased. the vehicle was taken to the dealer who stated that the failure was not related to the brakes but how she drove the vehicle. the toyota manufacturer have not been called for the failure. the failure mileage was 14,905. | |||
| 11/05/2009 | 1689 | ||
| Tl* the contact owns a 2010 toyota prius hybrid. while driving approximately 2 mph, the brakes were applied and they did not engage. the contact called toyota and was advised to wait for a letter. the contact called the manufacturer and could not get through. the current miles were 3603. the failure miles were 1689. | |||
| 11/16/2009 | 1000 | ||
| Tl* the contact owns a 2010 toyota prius. she stated that while driving at 30 mph she drove over a bump on the road. while having her foot on the brake the vehicle surged forward, a few seconds later the brakes engaged. this issue has occurred 5 additional times. the vehicle has not been diagnosed and no repairs had been done at the time of the complaint. the failure mileage was 1000 and current mileage was 35000. | |||
| 12/29/2009 | 720 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated whenever she was applying the brakes, the brakes cease to work periodically when going over a bump or a pot hole. the vehicle lurches forward as the brakes are depressed whenever she hits a bump. the vehicle was taken to the dealer and contact was told it was her imagination and nothing is wrong with the brakes. the toyota manufacturer had not been called at the time of the complaint. this failure has happened from the day of purchase . the failure mileage was 720. updated 03/15/10 *bf | |||
| 02/10/2010 | 2500 | ||
| Tl*the contact has 2010 toyota prius. the contact stated that while driving approximately 15 mph four times when she drove over a pothole and the brakes were applied, it felt as if the vehicle lunged forward. the brakes always functioned normally on even road surfaces vs. an uneven surface. the vin was unavailable. the failure mileage was 2500. the current mileage was 2700. | |||
| 09/10/2009 | 200 | ||
| Tl*the contact owns a 2010 toyota prius which was purchased in august 2009. she stated that whenever she applied the brake pedal during inclement or rainy weather conditions and uneven pavement, the vehicle lunged forward. the brakes would not engage and there would be a momentary hesitation. the dealer was contacted and advised her that it was normal and she must have been driving too fast. the contact confirmed she was not speeding and that even while traveling at speeds of less than 10 mph or in a parking lot, the failure would occur. the ecu module and the abs system was reprogrammed under the service brakes recall campaign id number: 10v039000. there were no additional failures since the repair was made. the failure mileage was 200 and the current mileage was 5,000. | |||
| 11/28/2009 | 3000 | ||
| Tl*the contact owns a 2010 toyota prius. while the contact was driving at 15 mph there was a reduction of the speed rate. the driver encountered a speed bump with pressure of the foot applied to the brake pedal. the brakes failed to engage and the vehicle began to surge forward. the vehicle continued to the destination and parked the vehicle. the failure occurred two different times. the contact is in the process of notifying the dealer. the vehicle has not been repaired. the failure mileage was 3000 and current mileage was 5000. | |||
| 09/17/2009 | 600 | ||
| Tl*the contact owns a 2010 toyota prius. while driving over a rough surface, the brakes failed to stop the vehicle. he stated that the anti-skid activated while driving on that type of surface. the failure occurred 100% of the time on roads with a rough surface. the dealer told him that there was nothing wrong with the vehicle. he had not spoken with the manufacturer to-date. the vehicle had not been repaired at the time of the complaint. the current mileage was 13,202. the failure mileage was approximately 600. | |||
| 11/20/2009 | 1500 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that when driving various speeds and trying to depress the brake pedal, she noticed that the brakes failed to respond. she would apply pressure to the brake pedal and they would lock for a few seconds. she noticed that the failure occurred 5 to 6 times. she took the vehicle to the dealer and they were unable to duplicate or diagnose the failure. the dealer also stated that the vehicle was designed to have the braking system lock for 3 seconds when they are engaged forcefully; afterwards the driver had press the pedal again to release the locked position. she had not spoken with the manufacturer to-date. the vehicle had not been repaired when the complaint was filed. the current mileage was approximately 4,600. the failure mileage was approximately 1,500. | |||
| 08/18/2009 | 1000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 15 mph with the brake pedal engaged it failed to respond which forced her to apply pressure to the brake pedal in order to stop the vehicle. the vehicle also lunged forward when the contact drove over a pothole. the dealer stated that since the vehicle was brand new it was adjusting to her driving pattern. the failure has occurred approximately 6 times. no repairs were made to the vehicle. the failure mileage was 1000. the current mileage was 6292. | |||
| 01/10/2010 | 5300 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 40 mph on uneven roads, the vehicle failed to stop immediately when the brakes were applied. the vehicle also lunged forward. the failure mileage was unavailable. the current mileage was 5300. | |||
| 10/20/2009 | 2500 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that while driving approximately 35 mph and applying pressure to the brake pedal the vehicle lunged forward and accelerated whenever there was a bump or pothole in the road. the dealer stated that the vehicle was functioning normally since the electrical engine was switching to the gasoline engine. the failure occurred continuously. the vin was unknown. the failure mileage was 2,500. | |||
| 01/12/2010 | 2747 | ||
| Tl*the contact owns a 2010 toyota prius. while the contact was driving 20 mph, she attempted to stop the vehicle and noticed hesitation when the brake pedal was engaged. the vehicle has not been diagnosed by the dealership and there were no prior warnings. the current and failure mileages were 2747. | |||
| 12/20/2009 | 2000 | ||
| Tl*the contact owns a 2010 toyota prius. whenever he engaged the brake pedal while driving various speeds ranging from 5 mph or higher over a pothole, a bump in the road, ice or any change in the road surface the vehicle momentarily accelerated before the brakes would engage. he also stated that he heard a rattling noise within the engine compartment after the vehicle was started. the dealer was contacted and a diagnostic test was performed but produced no codes. the failure could not be duplicated and the vehicle was released to the owner. no repairs were made to the vehicle. there were no recalls. the failure mileage was 2,000 and the current was 8,000. | |||
| 01/29/2010 | 100 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 25 mph over rough, bumpy surface or a pothole and trying to depress the brake pedal, the vehicle seemed to seize and glided instead of slowing down. the failure occurred on one occasion. he called the dealer and was told that there was nothing they could do about the failure. he had not spoken with the manufacturer to-date. the vehicle had not been repaired at the time of the complaint. the current mileage was approximately 150. the failure mileage was approximately 100. | |||
| 01/22/2010 | 2500 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 20 mph over a rough surface she noticed that the brakes would momentarily disengage. the vehicle has not been diagnosed by the dealer. there were no prior warnings. the current and failure mileages were 2500. | |||
| 07/08/2009 | 400 | ||
| Tl*the contact owns 2010 toyota prius. while driving approximately 20 mph on an uneven raised roadway surface; proceeding to make a left turn. pressure was applied to the brake pedal, followed by an unintended acceleration. the vehicle resumed to normal operation after applying pressure to the brake pedal. the failure occurred whenever encountering an uneven road surface. the vehicle has not been inspected for the malfunction. the failure mileage was 400. | |||
| 11/28/2009 | 5000 | ||
| Tl*the contact owns a 2010 toyota prius with electronic stability and anti-lock braking system. while braking at various speeds and driving over a pothole, a bump or any change in the road surface, the vehicle would momentarily accelerate before the brakes would engage. the dealer stated that was normal for the braking system for his year, make and model vehicle. there were no recalls. the failure mileage was 5,000 and the current mileage was 19,000. | |||
| 09/18/2009 | 500 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that the brakes were momentarily unresponsive at low speeds when driving approximately 10 mph over a pothole. she stated that the failure occurred 50% of the time she drove over a pothole or bumpy surface. she called the dealer and was told that the abs was the cause and it was normal. she called the manufacturer and was unable to speak with a representative. the vehicle has not been repaired to-date. the vehicle identification number was not available at the time of the complaint. the current mileage was approximately 4,000. the failure mileage was approximately 500. | |||
| 11/10/2009 | 1500 | ||
| Tl*the contact owns a 2010 toyota prius. the vehicle accelerated immediately after the contact drove approximately 45 mph over a bump in the road or a pothole. the contact was able to control the vehicle when the failure occurred. the failure mileage was 1500. the current mileage was 4000. | |||
| 09/09/2009 | 1000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 35 mph in rainy weather conditions, the driver encountered a pothole in the roadway and the anti-lock brake system engaged. suddenly, the brake pedal traveled to floor without resistance and a no power response. the vehicle slowed down after extreme and continuous force was applied to the brake pedal. the failure occurred when there was inclement weather conditions and potholes. the vehicle has not been repaired. the failure mileage was 1,000. | |||
| 09/06/2009 | 6000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving approximately 10 mph over a speed bump or a pothole with her feet on the brake pedal the vehicle lunged forward and accelerated. the dealer stated that the vehicle was performing normally since the electrical engine was switching to the gasoline engine. the failure mileage was 6,000. | |||
| 12/06/2009 | 3000 | 1 | 11/16/2009 |
| Tl*the contact owns a 2010 toyota prius. while driving approxiamtely 20 mph and making a left or right turn with the brake pedal engaged, for a fraction of a second. the anti skid light illuminated and the brakes failed to slow the vehicle down. the vehicle was taken to the dealer. the failure mileage was 3,000. updated 03/04/10. *lj updated 05/14/10.*jb | |||
| 01/08/2010 | 7700 | ||
| Tl*the contact owns a 2010 toyota prius hybrid. while driving approximately 25 mph on a slightly snow covered road surface there was pressure applied to the brake pedal, followed by an unintended acceleration. the driver continuously applied pressure to the brake pedal; however, the vehicle failed to slow down while proceeding through an intersection. an opposing vehicle crashed into the front passenger side and there were no injuries.the police was called to the scene. the vehicle was completely destroyed and towed to a collision center. the vin was unavailable. the cause of the failure has not been determined at this time. the failure mileage was 7,700. updated 03/12/10. *lj | |||
| 02/01/2010 | 1000 | 1 | |
| Prius braking problem when going slow speeds over a bump or pothole. *jb | |||
| 01/24/2010 | 1160 | 1 | 11/30/2009 |
| My toyota pruis 2010 which i purchased on nov.30 2009 had unexpectedly lurched forward when i was slowing down and applying the brake. i was taken by surprise and fortunately it stopped after i stepped on the brake very hard. this has happened several times already. *jb | |||
| 02/02/2010 | 6000 | 1 | 09/01/2009 |
| I own a 2010 toyota prius which was purchased in september 2009. my brakes fail to immediately stop my car when applied going over bumpy sections in the road, hitting a pothole, or when on slippery sections of the road. when hitting a bump it actually feels like the car lurches forward. the car will eventually stop after pushing the brake to the floor with force. it is very disconcerting and the potential for hitting the car in front of you or a person is very high. *jb | |||
| 02/03/2010 | 1 | ||
| Whenever i am driving and hit a pothole or bump on the road, immediately after going over the pothole or bump i feel like my prius surges forward or speeds up. this happens whenever i am going at a constant speed or when i'm braking. it has happened since i bought the car (two months ago) but yesterday morning it scared me more because i was going over a really bad road with many bumps. as i approached a red light i began to brake early but as soon as i got close to the stop there was a bump before it and my car lunged forward causing me to stop past the white line of the stop sign. this happens all the time when i hit a pothole or bump on the road. *jb | |||
| 02/03/2010 | 3500 | 1 | |
| When my 2010 prius goes over bumps the brakes disengage for a second or two and the car lurches forward. this has happened several times. *jb | |||
| 02/03/2010 | 2350 | 1 | |
| Sudden temporary loss of brakes in a 2010 prius. *jb | |||
| 12/17/2009 | 1 | ||
| 2010 prius - brakes stop working if they are being applied when car goes over bump or uneven road service. *jb | |||
| 01/08/2010 | 14000 | 1 | 07/01/2009 |
| Applied brakes at a stop light. the prius (purchased in july of 2009) ran over a bump, and it seemed like the brake disengaged. i removed my foot from the brake pedal and reapplied the brakes. the brakes seemed to engage and came to a stop. *jb | |||
| 01/11/2010 | 7000 | 1 | 09/01/2009 |
| 2010 toyota prius braking problem. i bought a 2010 toyota prius approx 4 months ago. during the approx 10000 miles i have put on the car, i have experienced a braking issue approx 5 to 6 times. most times i was braking for a stop sign in a 30 mph zone. once i was braking for a red light in a 45 mph zone. each time, there was bumpy road during the braking, and the brakes released. i can't say if the car accelerated, or it just seemed that way because of the brake release. it did not cause any accidents, but once it was on a snow covered hill and i slid out into a 2 lane 50 mph highway. there was no traffic, and therefore no accident. another time, i was stopping from 45 mph at a red light, and under braking, again on bumpy roads, the brakes released and i nearly hit the car in front of me. the brakes released enough allow me to panic and jam the brake pedal to the floor. the car stopped quickly. *jb | |||
| 01/29/2010 | 6500 | 1 | |
| My 2010 toyata prius (purchased in sept. 2009) has had repeated problems while braking over a patch of road with small potholes. if the brakes are engaged while over the patch of uneven road, the car lurches or jumps over the spot on the road and the brakes don't begin to catch until the car gets over the patch. this has happened 5-10 time over the last four months at a stop light. *jb | |||
| 11/12/2009 | 1000 | 1 | |
| 2010 toyota prius i've had at least 2 experiences where under hard braking and transitioning to different levels in road surface, the vehicle has lurched forward. when this occurred, each time, i thought i had been hit in the rear causing my vehicle to be pushed forward. i blogged other owners, and have been trying to get an answer for a few months. i saw the recent news on prius brakes and feel this is what's happening with my 2010 prius.*jb | |||
| 01/15/2010 | 2000 | 3 | |
| When applying the brakes to come to a stop at a red light, my 2010 toyota prius iv hit some rough road and began to surge/accelerate even with my foot on the brake. i pressed harder until the brakes were re-engaged. this has happened under similar circumstances (rough road) three times since taking ownership of the car sept 15, 2009. *jb | |||
| 02/03/2010 | 6 | ||
| Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) i am a retired colonel, usaf, but continue to work for the af as a civilian attorney. i purchased a 2010 toyota prius hybrid, [xxx] , on 9 nov 09. since that time, as recent as last evening when i pulled the vehicle into our garage, between my wife and i we have experienced on approximately six occasions the problem you have received other reports about concerning the vehicle's brakes. the release as i call it, occurred primarily when we hit irregular patches of roadway, such as potholes, washboard-type surfaces and the like. last evening, as i mentioned, it actually occurred as i was entering the garage. i approached a little faster than usual and was braking as the front tires encountered the elevated cement beyond the base of the garage door. the braking action was lost just for a moment after the impact with the cement. it's not that the engine speeds up when it happens, it's the forward momentum of the vehicle that increases with loss of the braking action. that has been the case each time it has happened. in fairness to the dealership, i have not notified it yet because i read not too long after the first time this occurred that other owners were beginning to report this problem and that toyota was developing a software fix for it. i assumed shortly there would be something in the nature of a recall and owners would be notified to bring their vehicles in for the modification. i do intend to notify the dealership tomorrow, but thought it necessary to report this to you now given the spotlight put on it today. *tr | |||
| 02/03/2010 | 8630 | 2 | |
| When the 2010 toyota prius goes over a pothole or over an ice patch is looses braking ability for one or two seconds. this has happened numerous times, the last time on the morning of february 3, 2010. *jb | |||
| 02/04/2010 | 5000 | 1 | |
| Our 2010 prius sometimes lurches forward on hitting a bump or driving on rough terrain. this happens predictably at certain locations. both my wife and i have observed this behavior, maybe a couple of times/week. not certain whether it's momentary acceleration or loss of braking but we think it's loss of braking. we have not yet taken any corrective action. i read in the paper that toyota is planning a recall. *jb | |||
| 01/20/2010 | 1 | ||
| 2010 prius loses brake force when regenerative braking is used over potholes or other uneven surfaces. it appears that when wheel slip occurs when braking in such instances, the regenerative system is disengaged causing loss of braking until the friction brakes are engaged by depressing the brake pedal farther. this has occurred on multiple occasions and can be replicated. *jb | |||
| 02/04/2010 | 4641 | 1 | |
| I've owned my 2010 toyota prius for 5 months now and frequently (at least twice a month) experience problems when braking on uneven ground. when i am hitting the brakes and run over a pothole or sudden bump, the car stops slowing down and almost shoots forward (feels like i'm hydroplaning) for a split second then resumes braking. this happened most recently today and could have caused an accident if i were closer to the car in front of me when it occurred. *jb | |||
| 12/09/2009 | 1 | ||
| Toyota prius 2010 brakes while on reverse gear suddenly becomes too sensitive and brings the vehicle to complete halt even on the slightest application of brake and when released the vehicle accelerates very fast and there by needing to hit brakes again which jolts the car back to halt. though it happens only on reverse it makes the car highly unpredictable while backing up. toyota dealers seem to ignore this complaint when taken for servicing and hence reporting on this portal. *jb | |||
| 01/20/2010 | 400 | 1 | 01/06/2010 |
| I was driving my 2010 toyota prius (which i'd taken delivery on about january 6), and i noticed what seemed to be a power surge or a momentary brake failure when i went over a pothole while i was slowing down after exiting a highway. the car seemed to lurch forward, so that i had to take my foot off the brake and re-apply it. this happened first on january 20, but has occurred three times since then. i've been trying to figure out what it was; at first i thought it was a power surge. but when i saw the article in the new york times on february 3, i knew that was exactly what had happened to me. every time it's happened as i was braking over a speed bump or pothole. i have made an appointment with my toyota dealer but have not gone yet. *jb | |||
| 11/15/2009 | 4000 | 1 | |
| As i was going downhill, the road surface was uneven. i attempted to apply the brakes. the pedal went almost to the floor as if there was no brake fluid. the car continued to go forward as the brakes did not engage. as i pushed the brake pedal further, the brakes engaged. *jb | |||
| 02/03/2010 | 8900 | 1 | |
| 2010 prius surges forward when i hit a bump with the brake pedal depressed. i have had a few near misses but no accidents to this point. last occurred yesterday. *jb | |||
| 01/21/2010 | 1 | 09/01/2009 | |
| My 2010 toyota prius has the same problem that are listed on this site with brakes. when trying to stop immediately after a bump or pothole and during minor slick condition the brakes don't react immediately. a couple of weeks ago i slid into an intersection with my brakes fully engaged before the brakes kicked in. thank god no car was in front of me. the car behind me saw what was happening and slowed down. this brake problem occurs weekly since my purchase of the vehicle in september 2009. *jb | |||
| 10/01/2009 | 2000 | 1 | 07/22/2009 |
| I own a 2010 prius, purchased 7/22/09. i have experienced a sudden surge when traveling over a bump or large pothole. the car momentarily surges and feels slightly out of control. this has happened about a dozen times in the 6 months i have owned the vehicle. i am concerned about my safety and this is why i am writing to you. *jb | |||
| 11/08/2009 | 1000 | 2 | |
| I was going down a fairly steep hill, applying my brakes evenly as i approached a stop light. there were no cars in front of me, and the road was dry. suddenly, i thought that i had been struck from behind because my car lurched forward (as though i had been struck). my 2010 prius was only about two months old at this point. the brakes re-engaged after a second or two, but i was afraid that i would have hit someone if i hadn't been alone on the road. the same thing happened when going down another steep road about three weeks later. again, there was no property damage and no one was hurt. but i was startled. i do not know if the road was uneven or if there were potholes. i have not reported these incidents to the dealer, the car company or the police because (although they scared me), i did not think much about them. now that i know that others have experienced this, i have become fairly worried. *jb | |||
| 01/13/2010 | 1 | ||
| My 2010 prius accelerates over bumpy road conditions irrespective of whether or not my foot is on the brake or not on anything at all. | |||
| 12/20/2007 | 4400 | 1 | |
| Brake failure on our 2010 prius. *jb updated 02/17/10 *bf the consumer also stated he experienced sudden acceleration. updated 03/05/10 | |||
| 06/15/2009 | 500 | 1 | |
| I own a 2010 toyota prius and am experiencing the exact problem that was just announced about the brakes. when i brake over a bumpy surface the brakes go almost to the floor before i am able to stop. also happens on snowy/icy surfaces. i had toyota look at my brakes on 10/27/09 at toyota scion of oak lawn, il. i was told by them that my brakes checked out fine. *jb | |||
| 02/04/2010 | 5159 | 1 | |
| My 2010 prius lurches when i go over pot holes or rough patches. i can control the lurch, but it does not feel right. it does not happen all the time. i am not sure what makes the difference between it happening and not happening. i received the title to the car in 8/27/09. *jb | |||
| 01/20/2010 | 6000 | 1 | 10/01/2009 |
| I bought a 2010 prius in october. i live in maine where winter driving conditions are not great. i have had three incidents now of driving at a low speed on plowed but snowy roads where the brakes did not catch when i applied them. once was going around a downhill curve which was scary. each time they eventually catch but not until i have skidded for about 3-6 ft. fortunately, i have not hit anyone yet. i called my dealer yesterday and was told there had not been a recall and there was nothing to be done about it yet. *jb | |||
| 10/02/2009 | 1500 | 1 | |
| Prius 2010. 1. when stopping and one of my front tires goes over a pothole, stick, or any other markedly uneven pavement, the brakes release propelling the car forward. 2. i notice most when i am going down hill. so far it has only happened when i am going slowly and braking hard enough to stop the car. it has not happened at higher speeds in traffic when i am merely slowing down in traffic. 3. i brought it to the attention of the service department at the local toyota dealer. i was told that it is the way the brakes are supposed to operate. i pointed out that i have owned 11 cars over the years and rented far more and never experienced this before. the complaint fell on dead ears. *jb | |||
| 02/04/2010 | 0 | 1 | 09/01/2009 |
| Toyota prius brake loss of control - when the vehicle goes over a bump (e.g. pothole, manhole) when the brake is being applied, it doesn't immediately stop but instead seems to lurch forward with the sensation of loss of control. this especially happens on city streets or in icy conditions. if there was a person or car in front of the vehicle, the prius would have hit the person/car. this happens every day at the same stop (bump in road when turning), as well as random places at least weekly since purchasing the car in september 2009. *jb | |||
| 01/15/2010 | 200 | 1 | |
| When driving i sometimes momentarily feel a pause in the braking system of my new prius. this occurs every time i drive on a certain street at a fairly high speed. while i am braking my right front tire goes through a pothole while my front left tire remains on flat tarmac. as my front tire comes out of the pothole i feel as if the brakes stop working for half a second and then they start working again. i estimate that i am driving through the pothole around 20-30 miles an hour. i drive this way every day from my work to house and i am always braking on this stretch of road as i turn a corner right after the pothole. there is a traffic light right after the pothole so whenever the light is green as i approach the pothole this happens to me. this has happened to me around 50 times - ever since i bought my new prius in september 2009. *jb | |||
| 01/25/2010 | 0 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 10 mph with the brake pedal engaged, the vehicle accelerated on its own . the contact was forced to apply pressure to the brake pedal in order to stop the vehicle. the contact has owned the vehicle for 5 months and the failure has occurred twice. the dealer was called and stated that they have not received any recalls for his vehicle; however, to bring it into to the dealership for a diagnostic test. no repairs have been made to the vehicle. the failure mileage was unknown and the current mileage was 3227. updated 03/12/10. *lj | |||
| 09/10/2009 | 150 | 1 | 08/22/2009 |
| Braking problems with 2010 toyota prius. since the purchase of this car on august 22, 2009, under the cash for clunkers program, my wife has repeatedly described the situation in which the brakes release unexpectedly. specifically, when braking at low speeds while driving over a rail crossing (single track), the brakes release momentarily as the car experiences the bumping motion induced by the tracks. this can be replicated at will. in addition, she has noticed a similar momentary release of the brakes when approaching a stop sign on a slick road when the anti-lock brake mechanism was engaged. in these few cases, the car rolled past the stop sign and partially into the main travel way. note this was not the result of sliding on slick pavement or the pulse-release of the anti-lock brake system but the release of brakes. none of these cases resulted in any physical impact or property damage--just the disconcerting feeling that the momentary loss of braking engendered. when my wife first noted this, i went to http://priuschat.com/, the prius owners forum (which i think is sponsored by toyota). the braking issue was noted by other forum members. *jb | |||
| 10/22/2009 | 650 | 1 | |
| Emergency braking delay in brake action. when the vehicle ahead of me immediately hard-braked on a yellow stop light at a red light camera monitored intersection (westbound illinois 38 at summit in villa park, il) i had to brake hard and maneuver to avoid rear-ending him. this was the first, and only, emergency stop situation i have had with my 2010 toyota prius. we were travelling just a bit below the posted 35 mph limit, and i was following at an appropriate interval (3+ seconds or about 3 car lengths). there was about a 1 second delay between jamming on the brake and significant braking action. i never experienced such a delay in my abs equipped 2000 chevrolet monte carlo ss or my 1995 ford windstar lx, since this experience i drive the prius with a greater interval, although this means other drivers regularly merge into the safety gap that i am trying to provide. *jb | |||
| 01/15/2010 | 1000 | 1 | |
| 2010 prius brake applied in zero temperature weather approaching a red light on slight down sloping road covered in ice/snow. the brake pedal was pushed as would normally be applied (maybe approx 1/3 - 1/2 brake pedal travel) and there was no applied braking. the car kept rolling forward to where i had to make a decision to continue rolling with a right turn into the intersection and continue travel. luckily the oncoming traffic was far enough away to not crash into me. i would estimate that the brake was applied for about 1-2 seconds, enough travel time to force me to make a decision that i needed to continue through the intersection before the oncoming traffic. this same type of scenario occurred on an exit off of an interstate ramp down another down slope with ice/snow that again when the brakes where applied, the regenerative engine brake applied, but when the abs went to engage due to the slippery surface, there was a 1-2 second duration of sensation of no brakes. pushing pedal further (or just waiting the 1-2 second delay) seemed to eventually apply brakes. i am a systems/test engineer that performs numerous work on commercial and military aircraft and i now know how to anticipate this situation for myself (i.e., i am more careful on braking earlier especially on slippery surfaces more than normal distance from my other honda vehicles on same type of surfaces to account for this possible 1-2 delay time in braking); however, this is unacceptable for my wife who does not have the same experience as i do or same technical feeling of what this vehicle is doing. again, if the traffic on that one intersection was closer to me than it was, there would have been a side impact collision. i have yet to experience this issue on solid roads over bumpy surfaces. with today's toyota revelation that the jan 2010 prius has a fix for this, i demand to have this same fix applied to my three month old 2010 prius. *jb | |||
| 02/02/2010 | 1050 | 1 | |
| I was braking my 2010 prius iii when i went over some railroad tracks. the vehicle suddenly accelerated and i had to step off the brake pedal and re-apply the brakes to get the vehicle to begin braking again. the acceleration lasted for more than 1 second and the vehicle didn't start braking again, until i had reapplied the brakes. *jb | |||
| 11/02/2009 | 3000 | 1 | |
| My husband and i have both experienced the braking issue for the 2010 prius. when we compared notes, we found that we lose control of the brakes when we drive over a small manhole cover near our house. i have also experienced this when driving/braking over a pothole. initially we thought we were experiencing the slipping motion because of unfamiliarity of new car brakes. *jb | |||
| 11/05/2009 | 1 | ||
| My 2010 prius accelerates over a bumpy surface or pothole, it surges forward, when i brake over these surfaces. *jb | |||
| 02/04/2010 | 100 | 1 | |
| When our 2010 prius goes over a bump the brakes seem to disengage and speed feels like it is increasing. althouhg todays date is on the event this has been an ongoing concern since purchasing the vehicle last year. *jb | |||
| 02/02/2010 | 1847 | 1 | |
| The brakes in my 2010 toyota prius do not operate properly. i have had the car 3 months with 1847 miles. over this time i must increasingly press the brake pedal closer to the floor to stop the car. today in dry weather, i nearly hit the car almost 50 yards in front of me when it stopped and although i pressed the pedal firmly it took a very long time for the brakes to grab. *jb | |||
| 01/28/2010 | 1 | ||
| I was driving my 2010 toyota prius down the road here in berkeley, ca, and applied the brakes as i was hitting a bump in the road. the brakes did not work. i thereafter lifted my foot off the brake and hit them again, at which point the brakes worked correctly. *jb | |||
| 07/02/2009 | 7 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 15 mph and engaging the brake pedal the vehicle failed to stop immediately. occasionally, the vehicle also responded as if it were hydroplaning on normal road conditions and within moments, the brakes would reset. the dealer stated that the vehicle was equipped with an abs. the failure was a normal occurrence for the vehicle. there were no recalls. the vin was unavailable. the failure mileage was 7 and the current mileage was 3500. | |||
| 09/10/2009 | 3000 | 1 | |
| I want to report a momentary brake failure of 2010 prius over uneven roads 2 months ago. i didn't report it earlier because i didn't know if it was a one-off or systematic issue. two months ago, i was driving a newly owned prius with hardly 4000 miles on it over a stretch of rt. 93 from andover to boston. i was traveling at about 65 - 70 mph on the left fastest lane. i cam across a bumpy patch, probably the road was being repaired, and it was not late for me to slow down as i didn't expect such unevenness on a major highway. i stepped on the brake while the car was being tossed up and down by the bumps and i immediately felt that the car lost braking. luckily, there was no car ahead of me and the braking did recover after the car settled down. i owned 4 toyota's from suv to the hybrid and prius is the only one that has this problem. i just want to support other people's complaints about this car. i must say that the braking did recover quickly that a collision was not likely unless someone drive the car very fast on an uneven road that is also crowded. however, a car should not behave like this under any conditions. *jb | |||
| 12/27/2009 | 8800 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 15 mph in snowy conditions the contact applied the brake pedal to stop the vehicle and it failed to stop and proceeded through the intersection and crashed into a pole. no one was injured during the crash. the contact had the vehicle towed to a dealer to repair the front end. the contact stated that the braking system failed and caused the vehicle to crash. the failure mileage was 8,800. | |||
| 12/28/2009 | 200 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that while driving 20 mph while driving over pothole with his foot on the brake pedal when the vehicle accelerated on it own. this failure occurred 5 times and has continued to occur every two weeks. the dealer confirmed that the abs system caused the failure to occur. no repairs were made to the vehicle. the vehicle identification number was unavailable. the failure mileage was 200 and the current mileage was 900. | |||
| 01/05/2010 | 8400 | ||
| Tl*the contact owns a 2010 toyota prius. she stated that while applying the brakes at any speed more than 5 mph and over a pothole the vehicle responded as if the brakes had failed and it attempted to accelerate. within seconds, the brakes would reset and function normally. the manufacturer nor the dealer were notified. there were no related recalls. the failure and current mileages were 8,400. | |||
| 10/15/2009 | 8000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 25 mph over uneven pavement the vehicle became difficult stop while engaging the brake pedal. the vehicle also accelerated intermittently. the contact has informed a local dealer about the failure who stated that toyota has not issued a recall. the contact is concerned that the brake failure could potentially cause a crash to occur. the vin was not available. the failure mileage 8,000. | |||
| 02/01/2010 | 1200 | ||
| Tl*the contact owns a 2010 toyota prius. she stated while braking at speeds of less than 15 mph and going over a pothole and railroad tracks the brakes would intermittently hesitate to function properly. within moments, the brakes would respond normally. on a separate occasion, while traveling in snowy conditions at speeds of under 30 mph, she attempted to depress the brake pedal and it would not engage. the vehicle did not slide; however, the brakes did not engage and she proceeded to crash into a curb causing moderate damage to the front passenger's side tire and rim. there was also a loud grinding noise coming from the vehicle after the crash occurred. the vehicle was taken to the dealer where she was awaiting repairs. there were no recalls. the failure and current mileages were 1200. | |||
| 01/02/2010 | 2500 | ||
| Tl*the contact owns a 2010 toyota prius. while engaging the brake pedal driving approximately 20 mph over a pothole, the brakes temporarily failed to function. the failure occurred whenever he drove over rough road surfaces. the dealer stated that when a fix becomes available they would notify him. the manufacturer was not notified. the current mileage was approximately 4,000. the failure mileage was approximately 2,500. | |||
| 10/01/2009 | 4 | ||
| Tl*the contact owns a 2010 prius. while driving approximately 5 mph on uneven pavement the vehicle lunged forward and she was forced to engage the brake pedal twice to stop the vehicle. the failure occurred 10 times prior to having it diagnosed by the dealer. the dealer stated that nothing was wrong with the vehicle. the failure mileage was 4. the current mileage was 3,800. updated 03/12/10. *lj | |||
| 08/01/2009 | 4 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 10 mph over railroad tracks engaging the brake pedal the vehicle failed to stop and accelerated. the failure occurred intermittently; therefore, when he took the vehicle to the dealer for routine maintenance, he did not mention the failure. he will take the vehicle back to the dealer to be diagnosed. the vin was unavailable. the failure mileage was 4 and the current mileage was 5,600. | |||
| 09/18/2009 | 2000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 5 mph over railroad tracks with his foot on the brake pedal, the vehicle accelerated on its own. the failure does not occur while driving over smooth road surfaces. the dealer has not been contacted. no repairs were made to the vehicle. the failure mileage was 2000 and the current mileage was 11000. | |||
| 06/12/2009 | 10456 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that the brakes failed whenever the vehicle is driven approximately 15 mph over bumpy pavement. the failure has occurred since the vehicle was purchased. the most recent failure mileage was 10,456 which was also the current mileage. | |||
| 01/29/2010 | 2 | ||
| Tl* the contact owns 2010 toyota prius. the contact stated when ever the vehicle goes over a bump in the road or pothole the braking system will not slow the vehicle down even though the brakes are being applied. also the contact stated that it takes to much pressure to apply the brakes for a new car. the contact took the vehicle to a dealer and the service tech. drove the vehicle and informed the contact that the brakes were fine and that is how the vehicle is designed and to apply more pressure. the contact does not feel safe driving this vehicle because the vehicle hit a bump and accelerated in to a intersection while the brakes were applied. failure mileage was 2. | |||
| 09/13/2009 | 11000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that when she attempted to stop the vehicle by engaging the brake pedal while driving approximately 26 mph over a pothole, the vehicle lunged forward. the dealer confirmed that the vehicle was functioning properly since it has an electrical engine. the failure continued to occur and has become more consistent. the failure mileage was 11,000. | |||
| 09/09/2009 | 3000 | ||
| Tl*the contact owns a 2010 toyota prius. the vehicle began to accelerate without warning while driving approximately 15 mph over a pothole. the contact was forced to apply extreme pressure to the brake pedal in order to stop the vehicle. the dealer advised the contact that the vehicle will continue to respond that way whenever the electrical engine switched to the gasoline engine. the failure mileage was 3,000. | |||
| 01/01/2010 | 2200 | ||
| Tl*the contact owns a 2010 toyota prius. while driving speeds of less than 15 mph over a pothole, the brakes malfunctioned and reset themselves within minutes without having to shut the engine off. neither the manufacturer nor dealer was contacted. there were no recalls. the failure and current mileages were 2200. | |||
| 08/10/2009 | 4500 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 30 mph the vehicle became difficult to stop when he drove over speed bumps. the contact stated that when the vehicle surged forward it felt as if he lost braking ability. the contact has not taken the vehicle to the dealer to have the failure diagnosed. the failure has occurred since the vehicle was purchased. the contact is concerned that a crash could occur if the vehicle continues to lunge forward. the failure mileage was 4,500. | |||
| 06/21/2009 | 20 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that when driving over a rough surface while depressing the brake pedal the vehicle accelerated; however, the failure did not recur on smooth road surfaces. the failure occurred on a weekly basis. he called the dealer and was told that there was nothing they could do to repair the vehicle until the manufacturer advised them. the vehicle identification number was unavailable. the current mileage was approximately 5,000. the failure mileage was approximately 20. | |||
| 01/02/2010 | 5100 | ||
| Tl*the contact owns a 2010 toyota prius. he stated that while depressing the brake pedal at speeds of 10-15 mph and going over a rock or a speed hump, the brakes would loose traction momentarily. the dealer was contacted and advised that was a normal function of the abs braking system. no repairs were made to date. there were no recalls. the failure and current mileages were under 5100. | |||
| 10/18/2009 | 10 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that when she was driving over a speed bumps and the vehicle suddenly accelerated with her foot on the brake pedal. whenever she drove the vehicle the failure occurred. she called the dealer and was advised that there was nothing they could do to correct the failure. she has not spoken with the manufacturer to-date. the current mileage was approximately 10,000. the failure mileage was approximately 10. | |||
| 12/18/2009 | 5000 | 1 | 10/09/2009 |
| Tl*the contact owns a 2010 toyota prius. when the contact attempted to apply the brakes while driving on a slippery surface the brakes did not fully engage which increased the stopping distance. the dealer was unable to reproduce the failure. there were no prior warnings. the current and failure mileages were 5000. updated 03/09/10. *lj updated 05/13/10 | |||
| 01/31/2010 | 200 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that with his feet on the brake pedal while driving 20 mph over a bump in the road or a pothole the vehicle lunged forward and accelerated. the dealer has not diagnosed the failure and it occurs more frequently. the failure mileage was 200. | |||
| 10/27/2009 | 800 | ||
| Tl* the contact has a 2010 toyota prius. the contact stated that if he tries to stop and hit a bump or pothole the brakes seem to release. when going down a hill on a bumpy road the vehicle was unable to stop until the vehicle reach a smooth patch of road. the failure mileage was 800 and current mileage was 4000. | |||
| 11/10/2009 | 5000 | ||
| Tl* the contact has a 2010 prius. the vehicle is having a brake failure when going over bump or uneven pavement. the contact stated that this happens regardless of weather conditions. the vehicle almost hit another vehicle when going around a curve and hit a bump. the vehicle then seem to start to slide. the failure mileage was 5000. the vehicle current mileage was 15858. | |||
| 09/19/2009 | 2100 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated that when he hit a bump in the road or a pothole and depressed the brake pedal, the brakes seemed to released or let go; instead of slowing down, the vehicle would continue moving at the same speed. he noticed the issue on an intermittent basis and only when on a rough or bumpy surface. he had not taken the vehicle to the dealership but called; he was told that they were looking into the problem. he had not called the manufacturer to-date. the vehicle had not been repaired at the time of the complaint. the current mileage was approximately 7,200. the failure mileage was approximately 2,100. | |||
| 12/01/2009 | 1800 | ||
| Tl*the contact owns a 2010 toyota prius. the contact was driving approximately 35 mph on an uneven road surface approaching a traffic signal when the vehicle lunged forward immediately after the brake pedal was engaged. the driver had to apply excessive force to the brake pedal to stop the vehicle. the failure occurred whenever encountering an uneven road surface and potholes. the failures occurred on three separate occasions. the vehicle will be taken to an authorized dealer for inspection. the failure mileage was 1,800. | |||
| 01/13/2010 | 18000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact stated that whenever she attempts to stop on an uneven road, the brakes fail to stop the vehicle. whenever the failure occurred the speed varies. the vehicle also briefly lunged forward and accelerated. the brakes squeak continuously when the vehicle is driven. the vehicle was taken to the dealer who confirmed that the vehicle was functioning normally since it has an electrical engine combined with a gasoline engine. the failure mileage was 18,000. | |||
| 02/03/2010 | 8800 | ||
| Tl* the contact owns a 2010 toyota prius. the contact stated as he was stopping his vehicle, he hit a bump in the road while depressing the brake the vehicle lurched forward and accelerated. the vehicle was taken to the dealer and contact was told this was normal and it is the electrical engine switching to the gas engine. the contact stated that this is a continuous problem while stopping the vehicle. the failure mileage was 8,800. | |||
| 12/15/2009 | 15000 | ||
| Tl*the contact owns a 2010 toyota prius. the contact was driving approximately between 35-40 mph and encountered a bump in the roadway. there was pressure applied to the brake pedal, followed by no power response for a few seconds. the vehicle resumed to normal operation. in addition, there was an excessive knocking noise coming from the engine during the start up which occurred on two separate occasions. the vehicle had not been inspected for the malfunction. the failure mileage was 15,000. | |||
| 12/06/2009 | 5000 | ||
| Tl*the contact owns a 2010 toyota prius. while driving 5 mph depressing the brake pedal over a speed bump, the vehicle lunged forward and the vehicle proceeded to accelerate. the vehicle was taken to the dealer who stated that there was a computer glich that caused the failure to occur. the failure mileage was 5,000. | |||
| 09/25/2009 | 600 | 1 | 08/01/2009 |
| Tl*the contact has 2010 toyota prius. the contact was engaging the brake pedal while driving 15 mph into a pot hole. once the contact drove into the pot hole the brakes released and she was forced to pump the brakes in order to stop the vehicle. the contact stated that there was a loud screeching noise as well. the failure mileage was 600. the current mileage was 5,600. *cn updated 02/17/10 | |||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS - MASTER CYLINDER | |||
| 05/31/2012 | 3 | 08/01/2010 | |
| 2010 toyota prius. consumer states two brake system failures *tgw the consumer stated the vehicle began making an unusual sound and after a few days, numerous warning lights appeared on the dashboard announcing a failure of the braking system. the vehicle was towed to the dealer. an inspection revealed the master cylinder, booster and ecu needed to be replaced. the consumer paid $ 3,246.83 for the repairs. however, nine days later, the unusual brake pedal sound returned, but the brakes worked and no warning lights appeared. the next day, the brake system completely failed while his daughter was driving the vehicle. again, the vehicle was towed to the dealer, where the technicians determined the vehicle needed a new brake booster assembly. the consumer was informed he would only be responsible for the labor costs of $ 255.48. the consumer believed the booster and brake booster were the same part, which was supposed to have been replaced several days prior. jb | |||