Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
SERVICE BRAKES, AIR
420610020756Brakes seem to grab on first few brake applications. *kb01/05/2007
SERVICE BRAKES, AIR - ANTILOCK - ABS WARNING LIGHT
346008/01/2009PIT-3460Q10021348Abs light on with ebcm dtc's c0035, c0040, c0220 and/or c0221. *kb updated 1/30/08. *nj updated 8/18/09. *pe updated 3/15/10. *pe updated 3/29. *pe04/06/2007
SERVICE BRAKES, AIR - ANTILOCK - WHEEL SPEED SENSOR
347710014875Tech 2 displays asterisk for the left front wheel speed sensor. *tt05/11/2005
SERVICE BRAKES, HYDRAULIC
0193401/01/200410006417Front brakes seem applied. *mr05/03/2004
03052300511/01/200310005556New essential tool ch-47661 - on-car brake lathe. *tt03/02/2004
SERVICE BRAKES, HYDRAULIC - ANTILOCK - ABS WARNING LIGHT
3460D3460E10016563Anti-lock braking system (abs) light on with ebcm diagnostic trouble codes (dtcs) c0040, c0035, c0221 and/or c0220. *tt09/22/2005
311901/01/200410010068Abs brake valve bleed procedure correction. *sc11/03/2004
SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS - DRUM - SHOES/LININGS
356707/01/20083567J10016521Engineering investigation/premature rear brake shoe wear. *tt premature rear drum brake wear. updated on 10/03/07. *nj updated 9/30/08. *pe09/20/2005
SERVICE BRAKES, HYDRAULIC - PEDALS AND LINKAGES
0191001/01/200410006816Brake pedal arm may not stay engaged. *tt05/14/2004

Consumer Complaints


Fail datemilesoccurencesPurchase date
SERVICE BRAKES
03/18/2009550001
 I have had to have the emergency brake cable replaced twice due to poor engineering. the cable has a klew that transfers from one cable to two cables and that is located directly underneath the driver's side door, in the direct line of fire from road debris that comes off of the front tire. i have already had it replaced twice. the poorly designed cable easily seizes up from excessive dirt and corrosion getting inside the cable and it becomes no longer safe to operate. it is a manual transmission vehicle, so not having an operating cable brake is not a small problem. *tr
03/18/200955000
 I have had to have the emergency brake cable replaced twice due to poor engineering. the cable has a klew that transfers from one cable to two cables and that is located directly underneath the driver's side door, in the direct line of fire from road debris that comes off of the front tire. i have already had it replaced twice. the poorly designed cable easily seizes up from excessive dirt and corrosion getting inside the cable and it becomes no longer safe to operate. it is a manual transmission vehicle, so not having an operating cable brake is not a small problem.
10/02/201263000
 Tl* the contact owns a 2004 chevrolet colorado. the contact stated that the emergency brake failed. the vehicle was taken to the dealer and was told the ratcheting mechanism was broken on the inside of the vehicle and needed to be replaced. the failure mileage was 63,000 and the current mileage was 64,000.pmb
11/15/2011450001
 Sometimes when braking the abs will come on till the vehicle stops,and the abs warning light comes on till you turn the car off.when the car is restarted the warning light is off till the abs comes on again mostly when coming to a slow rolling stop,ie.red light ,stop sign. i have talked to other owners of this vehicle who are having the same problem. *tr
10/02/201263000
 Tl- the contact owns a 2004 chevrolet colorado. the contact stated that the emergency brake failed. the vehicle was taken to the dealer and was told the ratcheting mechanism was broken on the inside of the vehicle and needed to be replaced. the failure mileage was 63,000 and the current mileage was 64,000.pmb
11/15/2011450001
 Sometimes when braking the abs will come on till the vehicle stops,and the abs warning light comes on till you turn the car off.when the car is restarted the warning light is off till the abs comes on again mostly when coming to a slow rolling stop,ie.red light ,stop sign. i have talked to other owners of this vehicle who are having the same problem. *tr
10/02/201263000
 Tl- the contact owns a 2004 chevrolet colorado. the contact stated that the emergency brake failed. the contact took the vehicle to the dealer and was told the racheting mechanism was broken on the inside of the vehicle and needed to be replaced. the failure mileage was 63,000 and current mileage was 64,000.rl
11/15/201145000
 Sometimes when braking the abs will come on till the vehicle stops,and the abs warning light comes on till you turn the car off.when the car is restarted the warning light is off till the abs comes on again mostly when coming to a slow rolling stop,ie.red light ,stop sign.i have talked to other owners of this vehicle who are having the same problem.
09/18/2012798501
 Abs fault light went on. turned off engine, restart, light off. goes on and off randomly. *tr
09/18/201279850
 Abs fault light went on. turned off engine, restart, light off. goes on and off randemly.
09/09/201050000
 Tl* the contact owns a 2004 chevrolet colorado. the contact stated that the anti-lock braking system was not working properly and would exhibit an abnormal grinding noise. the noise was heard when the vehicle was first started and would remain for several minutes afterward. the vehicle was taken to the dealer who stated that no failures were found and offered no assistance. the manufacturer was notified who stated that there were no recalls for the failure and offered no additional assistance. the vin was not available. the failure mileage was 50,000 and the current mileage was 60,000.
09/18/201279850
 Abs fault light went on. turned off engine, restart, light off. goes on and off randemly.
09/09/201050000
 Tl- the contact owns a 2004 chevrolet colorado. the contact stated that the anti-lock braking system was not working properly and would exhibit an abnormal grinding noise. the noise was heard when the vehicle was first started and would remain for several minutes afterward. the vehicle was taken to the dealer who stated that no failures were found and offered no assistance. the manufacturer was notified who stated that there were no recalls for the failure and offered no additional assistance. the vin was not available. the failure mileage was 50,000 and the current mileage was 60,000. kmj
09/09/201050000
 Tl- the contact owns a 2004 chevrolet colorado. the contact stated that the vehicle abs brakes systems was not working properly and makes a grinding noise. the vehicle noise stayed on for a little while after was started. no warning lights were illuminated at all. the vehicle was taken to the dealer who stated that no failure were founds and offered no assistance. the manufacturer was notified who stated that there was not a recall for the failure and the vehicle was not under any warranty and offered no additional assistance. the vin was not available. the failure mileage was 50,000 and the current mileage was 60,000. lg
SERVICE BRAKES, AIR - ANTILOCK - CONTROL UNIT/MODULE
01/25/200513742505/29/2004
 Recurring incidence of failure of driver side window and lock/unlock buttons on both drivers side and passenger side door pad inoperable at indeterminate periods of time. odi 10150643: recurring narrative complaint #1 dealer response; dealer customer copy invoice: left front window inop, window works everytime, never duplicated customer complaint. door locks will not operate with remote locks working everytime. we tried. never duplicated customer complaint. cd player/radio power will shut itself completely off. upon pushing power knob, and selecting cd aux button the cd player will not play, eject, or load 6-disc cd player. dealer customer copy invoice: sometimes cd player will not take or eject cd. cd player not taking or ejecting cd. found calibration for radio. recalibrate radio with tech 2. cd working ok now. upon engaging abs system on dangerous road conditions the driver must apply extreme pressure on brake pedal. abs system engages with extreme vibration and noise, brake pedal will be engaged to the floor and pedal will push back with resistant and then fails to respond. resulting in car taking longer to come to a complete stop and tires to lock up without shifting power to alternate tire. dealer customer copy invoice: when you stop real hard feels like pedal goes to floor and vehicle doesn't want to stop. test operation of brakes. operating as designed at this time. advise customer of abs operation no problem found with brakes. driving on ideal road conditions and/or off road conditions, back of bed rattles and loud rattling noise is observed inside and outside of vehicle. dealer customer copy invoice: bed of truck rattles. test drove found trailer hitch rattling. also front license bracket loose and making a lot of noise. remove bracket and install bigger push in tabs. adjust hood, it was a little loose and making noise. lube hood latch also. courtsey transportation-rental- total invoice... 0.0. *nm
SERVICE BRAKES, ELECTRIC
11/15/201029000
 Abs break failure. abs activates during normal operation of vehicle breaking, pedal gets hard and or vibrates, brakes still work but you must apply very hard force to pedal. vehicle is a 2004 chevy colorado with only 30,000 miles. this has been occurring on and off for about three to four months. it appears that it becomes worst during wet humid weather, and when turning and breaking at the same time. occurrences have increased in frequency from a couple of time a week to several times a week. i had not taken the vehicle into mechanic to be checked yet, but will soon. also abs fault light came on a couple times and stayed on until vehicle was shut off, and restarted much later, at which time the light reset. this has occurred a couple of different times during the last two months.
SERVICE BRAKES, HYDRAULIC
02/17/200619030
 Numerous brake problems -abs brake intermittent. - abs kicks in for no reason (vehicle to sudden/abrupt stop) - then at other times hard to get vehicle to stop - hub(bearing) and abs sensors problem - brakes lock up when parked - intermittent abs fault codes gm will not acknowlege the defect in the system
09/02/201196000
 For beeing mechanically inclined this is definetly one problem i cant fix. i did the pads and rotos on my 2004 chevy colorado, all went well, nice and easy. later that week my abs light came on. i had my breaks checked and the mechanic said it wash showing wheel speed sensor. i bought the part and replaced it nice and easy again. the light turned off for about 2 min then came back on. the next time i went to drive my truck i turned it on, the sensor was off then the abs system started engaging on and off making a wiered pump sound and making my brakes ingage and disingage. this happens for about 20 sec then goes away and the abs light comes back on. i thought nothing worse could happen after having the computer replaced twice on the truck. this is worse.
09/08/200620000
 Tl-the contact owns a 2004 chevrolet colorado. the contact stated the brake light switch has been replaced numerous times. there was a recall nhtsa campaign id number: 09v310000, component: exterior lighting: brake lights: switch. the dealer replaced the switch under the recall and warranty but every 20,000 miles the switch would fail. the ac resistor wires were melted causing the air condition to not blow on high. the dealer replaced the wiring harness and the resistor at his expense but it has failed a second time. the manufacturer was not contacted. the failure mileage was 20,000 and the current mileage was 130,000. mw
07/15/2011113000
 The abs on my '04 colorado is activating at low or medium speeds without applying the brake. if traveling at slow speed, as in a parking lot, abs will be activated almost constantly. this is very annoying and can actually be a safety hazard when attempting to come to a normal stop.
01/04/201181230
 Abs fault warning lights up on completely dry roads causing temporary lack of stopping force, espically at slow speeds. have had near miss due to this fault.
11/15/201065000
 Brakes have started to malfunction. brakes will be applied and abs light or traction control light on dash will go on. brakes will funtion but sometimes abs will sound at slow speeds. occures sporatically.
08/01/200960000
 2004 chevy colorado abs failure indicates on dash for no reason on dry pavement at any speed when not applying brakes, goes off once truck is shut off. comes back on periodically while driveing on dry pavement. abs seems to engage at slow speeds for no reason on dry pavement,brake peddle starts to pulsate and truck does not seem to want to stop.
11/01/201035500
 After driving vehilce a short distance from the house, the abs system activated as if on a slick surface as i braked to stop at stop sign. i eventually had to press extremely hard on brake pedal to stop my vehicle before stop sign. the trucks abs fault light immediately showed up on the dash along with the abs light. during short drive to work, the abs fault message continued to show. after restarting the truck after work, the same process of abs activating as if on slick surface and warning message showed.
09/01/201050000
 The abs fault light comes on periodically, then the brakes do not operate properly. the brake pedal becomes hard to push and the vehicle does not respond.
06/10/201084000
 Tl- the contact owns a 2004 chevrolet colorado. while examining the vehicle the contact noticed that the rear brakes light did not function. the vehicle was taken to the dealership where the contact was informed that the brake light switch needed to be replaced. there were no prior warnings and the vehicle has not been serviced. the current and failure mileage was 84000. bml
01/09/201058000
 I have not had an accident as of yet with this problem. the problem is wheel lockup when applying the brakes. it throws the passengers forward violently. i've had the brakes checked and the rotors and linings are fine. but in use they are not. the fear of lockup makes you overcautious and late in braking. the problem is worst when first driving the car but continues on and is a serious hazard. it is related to moisture but is more severe than anything i've experienced in my driving history. this needs to be corrected by a forced recall. my auto is 2004 chevy colorado pickup
10/10/20081
 Speed sensor in the wheel hub assembly goes bad. this causes the abs to stop working properly. *tr
10/23/200840880103/11/2004
 Tl*the contact owns a 2004 chevrolet colorado. the contact heard a loud growling noise and the vehicle pulled to the right while traveling over 30 mph. the abs warning indicator illuminated when the growling noise was heard. the dealer stated that the driver's side hub failed and would cost over $700 to repair. her vin was not included in nhtsa campaign id number 06v139000 (exterior lighting:brake lights:switch). the failure and current mileages were less than 40,880. updated 02/24/09. *lj the vehicle pulled to the right when the brakes were applied. the brake sensors were bad. updated 02/05/09. *jb
03/01/2008400001
 No crashes or injuries yet. my complaint is about the abs wheel sensor on my 2004 chevrolet colorado 4x4 ls z71. it is not functioning correctly. after i start the truck the abs light will come on with a tone plus a message in the d.i.c. abs fault. i have discussed this problem with my local chevrolet dealer. they have informed me that my abs wheel sensor is not working properly. as far as i can tell that means that my abs brakes (safety feature) is not working. my truck is up for inspection in february 2009. i'm pretty sure that it will not pass because of this problem. my truck has less then 44,000 miles as of today. i asked my local dealer on a rough estimate on fixing the problem. they informed me that it would be in the $700-$800 range. yes, my warranty is up. but i feel that this problem is more of a safety issue. the abs is a safety feature on all newer vehicles today. i could not purchase this truck without this feature. therefore sense i did not have the option to purchase the truck without abs. i feel that general motors should take responsibility to fix the problem. *tr
07/01/2008750001
 Engineering defect of adjuster causes rear brakes to lock up. a tsb was issued but remedy will cause problem of brakes not adjusting correctly in the future. *tr
08/29/200766014206/11/2007
 Tl*the contact owns a 2004 chevrolet colorado. the contact stated that the brakes squeak and squeal at various speeds. the dealer replaced the brakes with metallic brakes on august 29, 2008 and the noise stopped temporarily. when the vehicle was taken in for an alignment on december 31, 2007, the squeaking and squealing recurred. on july 3, 2008, the brakes on all four wheels were inspected, adjusted, and cleaned. on july 7, 2008, the front brake pads were replaced with ceramic brakes due to the squeaking noise. on july 9, 2008, the front rotors were replaced at no charge. currently, the dealer wants to replace the front brake system for $1,500. the dealer will not replace the brakes themselves because there is a disclaimer in the owner's manual regarding the brakes squeaking. the contact stated that because the brakes did not squeak for a period of time when the original ceramic tires were on the vehicle, the metallic brakes should not have been placed on the vehicle because they caused the failure. in addition, the driver's side front rotor was warped and rusted from the wrong brake shoes being placed on the vehicle, and the passenger rotor has deep grooves. the current mileage was 72,477 and failure mileage was 66,014. updated 07/29/08 updated 07/29/08. *jb
08/09/2005895305/31/2004
 Purchased 2004 chevy colorado sport with lowered suspension in may 2004. the brake system has never been 100%. it will vary in degrees of pressure required to adequately slow down, or even stop the vehicle. it has been in to the dealer three times and each time they state nothing is wrong. the brakes also squeal with less than 9,800 miles on it and they state this normal. there have been several times we were driving and i attempted to stop the truck and it would either jerk very harshly or would require excessive peddle pressure to stop. i have driven two other exact same models and years and they do not have the problem, there for this vehicle is faulty. last attempt to solve issue resulted in very rude service manager giving me gm phone # and basically telling me off and to leave dealership to contact them. i will never purchase a gm vehicle again and will be claiming a lemon law right on this one. *nm
09/06/2004108/30/2004
 The vehicle tends not slow down when the vehicle is going down hill and the driver is down shifting and braking. owner will contact manufacturer.*ak the engine and transmission doesn't provide braking when shifting to a lower gear when going down a hill. *eh
01/04/200414001
 When applying brakes pedal proceeded to the floor and pulsated without warning. *ak
SERVICE BRAKES, HYDRAULIC - ANTILOCK
10/13/20075000018001/09/2005
 Tl*the contact owns a 2004 chevrolet colorado. while driving between 20 to 50 mph, the abs activated without the brake pedal being depressed. the abs warning light illuminated and the broadcast system indicated that there was an abs error. the dealer would not repair the system because there was no recall. the abs has been deactivated. the abs is a part of the hub and sensor, and must be replaced as one unit. the ring is located between a thin piece of metal and water is able to enter because there is nothing blocking the open space near the sensor. the contact is aware of the design flaw and the safety risk involved. the ring dislodged and caused the abs to actuate. the failure mileage was 50,000 and current mileage was 71,000. updated 5/6/08 *cn updated 05/06/08 *tr
11/08/2007208/07/2007
 Tl*the contact owns a 2004 chevrolet colorado. while driving 15 mph, the abs light illuminated. if the vehicle exceeds 25 mph, the abs and brake lights illuminate. the contact spoke with the dealer and they stated that nothing could be done. the current mileage was 77,890. updated 04-07-08 *bf the consumer stated when the abs malfunctions, it feels as though he is stepping on the gas and brake simutanously.
11/01/200619000209/01/2004
 Tl*the contact owns a 2004 chevrolet colorado crew cab. while attempting to stop the vehicle from 45 mph the brakes began grinding metal to metal. this incident occurred twice. when approaching a traffic signal the contact had to pump the brakes in order to stop the vehicle. the dealer diagnosed the failure as the abs, and stated that the repair could be performed if the vehicle was under warranty. after having the rear lower brake pressure repaired the abs became inoperable. the right rear end would slide, grind, and produce a screetching noise. the contact stated that the failure caused a hit and run accident. the contact called the manufacturer to request financial assistance for the repair of the vehicle, but was unsuccessful. the contact received recall # 06v139000. the current mileage is 36,800 and failure mileage was 19,000.*ak
04/15/200636038509/05/2004
 Tl* - the contact owns a 2004 chevrolet colorado. the contact was driving 35 to 4o mph while attempting to stop the vehicle and the brakes made a sound like metal grinding on metal. while coming to a stop in 2006 she had to pump the brakes. as a result ,there was no grinding ,but the dealer said the anti lock brake system was defective. the dealer said that if she purchased a warranty they would repair the brakes at no cost to the contact. once the contact realized how unsafe the vehicle was she stopped using the vehicle, andwas currently driving a rental vehicle. there were no recalls listed on nhtsa website related to this incident. the contact attempted to call the manufacturer, and was unsuccessful with her current request to gain financial assistance in the repair of the vehicle. the contact stated she received recall number 06v139000 onh april 26, 2006 concerning exterior lighting:brake lights:switch. *ak
10/17/200635690101/14/2006
 Dt*: the contact stated the abs warning light illuminated with the message; abs traction fault. the brakes failed and the vehicle coasted through a stop sign at 10 mph. the vehicle was taken to the service dealer 3 times but was not repaired. the service dealer was waiting for parts. the manufacture was not notified.
09/19/200647112206/02/2004
 Dt*: the contact stated in wet weather while depressing the brake pedal at various speeds, the brakes locked causing the vehicle to suddenly stop. it was driven to the dealer who could not duplicate the problem.
12/21/200412570305/29/2004
 Driver's side electrical button control pad inoperable at irregular and inconsistent instances. upon pushing driver's side window electrical button, driver side window will not roll down. however, the driver's back, passenger front side, and passenger back side electrical keypad window buttons remain operable. both the driver and front passenger lock/unlock electrical keypad buttons are inoperable. upon turning off engine, removing key, exiting vehicle, closing all doors, and pushing the keyless entry lock and/or unlock buttons result in response from keyless locking mechanism. when key is left in ignition and engine running, upon pressing either the lock/unlock electrical buttons on the driver's door or pressing the keyless entry lock/unlock buttons result in a double dinging sound from the dashboard display but no other indication is produced from dashboard. dealer response; customer copy invoice: operate window, check connector on switch. window operates normally, cannot duplicate customer complaint. abs light will come on and stay for an indeterminate amount of time. normal and correct operation of abs dashboard display light indeterminate. results in customer concern for safety of driver and all passengers relying on correct functioning of abs brake system. dealer customer copy invoice: scan computer code c0040. run flow chart, found right front hub and sensor had intermittent open circuit. replaced right front hub and speed sensor. upon starting vehicle to warm up engine in 40-50 degree fahrenheit environmental conditions, inside manual heat-directional knob will not turn unless extreme pressure is applied. dealer customer copy invoice: compare knob operation with another colorado tension knob is the same. cannot duplicate customer complaint at this time. total labor... 0.0 total parts... 0.0 total sublet... 0.0 total g.o.g... 0.0 total misc chg... 0.0 total misc disc... 0.0 total tax... 0.0. *nm
02/03/200617600809/01/2004
 Dt*: the contact stated while driving at various speeds on rough roads the brakes grab and the vehicle slides. this happens intermittently. the dealer can not duplicate the problem therefore, no repairs have been made.
08/09/200532004105/01/2004
 1. abs kept kicking in on low speed stops such as a simple stop at a stop sign. 2. result i was unable to stop when a truck stopped in front of me. *jb
05/02/2005110/01/2004
 Dt: standard braking was fine but when the consumer needed the abs it did not work. in normal braking the wheels started to lock up and it released but it never reengaged. the abs trouble light as well as a information center on his dashboard illuminated indicating a problem with the abs. the vehicle was taken to the dealer who determined there was a problem with the front abs sensor. the dealer didn't have the part to repair the problem. gm is pending the outcome of the investigation. gm indicated the faulty abs would not have caused an accident at this time. *nm
09/30/20048751
 While driving and upon trying to brake putting it three and then two the vehicle picked up speed when it should be slowing down. took vehicle to the dealer, was told that they could not do anything. also, called the manufacturer, and was told the same thing. *ak
08/07/2004870002/14/2004
 Vehicle has an on going problem with the brake dragging the vehicle when applied. condition causes the vehicle to shimmy and extended braking distance. vehicle been to the dealer on three separate occasions and could not locate the problem. consumer took the vehicle to a repairs shop. the mechanic replace the abs booster and the front pads. feel free to provide any further information.
SERVICE BRAKES, HYDRAULIC - ANTILOCK - WHEEL SPEED SENSOR
05/16/2009430001
 Tl*the contact owns a 2004 chevrolet colorado. when the contact depressed the brake pedal, the abs did not respond. the abs light illuminated at random, which caused the brakes to randomly pulsate. the dealer stated that the vehicle needed front hubs, bearings, and wheel speed sensors on both sides. the contact stated that he cannot afford the $1,400-$1,600 repair cost. there were no recalls for this failure. the failure mileage was 43,000. updated 07/01/09 *bf updated 07/06/09.*jb
SERVICE BRAKES, HYDRAULIC - PEDALS AND LINKAGES
11/01/20041
 Brake and gas pedal are to close together for people with larger feet. i wear a size 13 shoe and when i wear my hiking boots, i have about 1/4 clearance between the right side wall and the brake pedal, my foot continually catches on the brake pedal. i am looking into moving the brake pedal to the left or putting on a new pad to give more room in between the brake and the side wall. *jb
10/18/20042009/20/2004
 The brake pedal in this vehicle is too close to the accelerator, creating a limited space for your foot. on more than one occasion my foot was impinged under the edge of the brake pedal when i attempted to remove my foot from the accelerator to brake. i feel that one may not be able to access the brake quickly in a panic stop situation.
SERVICE BRAKES, HYDRAULIC - SWITCHES - BRAKE LIGHT
09/11/200653000102/07/2004
 Dt*: the contact stated the brake lights and cruise control quit working suddenly without warning. there was a nhtsa recall, # 06v139000, regarding the exterior lighting: brake lights: switch. the vehicle was not included in the recall due to the vin.