Consumer Complaints


Fail datemilesoccurencesPurchase date
SERVICE BRAKES, AIR
07/28/20091000
 I purchased my 2010 lexus rx 450h in july of 2009. ever since i bought it, i have noticed that from time to time, when i press the brake pedal, the car seems to surge forward(!) momentarily before it slows down. this happens most frequently when driving over bumpy roads. and it will happen even if i am only coasting and not touching the gas pedal when pressing the brake initially. it happens to me at least once or twice a week. it is somewhat disturbing. i have mentioned this to my lexus dealer, but they have dismissed my concerns both times i brought it up. i noticed this even before i had heard of the toyota recall on hybrid prius brakes, but from what i read, the issue sounds similar to the prius hybrid 2010 problems. but there is so far no recall on lexus 2010 hybrid brakes. has anyone else noticed this issue?
SERVICE BRAKES, ELECTRIC
01/03/2010
 I wanted to alert you that other hybrid models that were manufactured with the same braking system as the prius suffer the same issue. i have a 2010 lexus 450h rx and its breaks disengage when i am driving on bumpy roads and over pot holes. i live in a northeastern city with many bumps and my brakes stop working often and as a result i have to slam them on much more quickly. although i haven't had a crash at this point, i can easily see running into the back of a stopped car in front of me if my brakes disengage at the wrong time. this is a continual issue and i don't have a specific date but given the prius recall, i am confused why my own brakes have not had a similar software fix and the issue sound exactly the same. the date below is non specific. i have had the car from dec 2009 until now and the issue has been continuous. the brakes appear to work fine on smooth roads.
02/08/2010139991
 Lexus hybrid suv 2010 rx450h. car was in snow setting and when i tried to brake on a light snow surface, there was no response from the brakes and i also was unable to steer. i continued forward until i reached clear pavement and was then able to brake. this happened 3 times today under the same conditions. luckily no cars were coming or i would have been hit broadside on a busy street. *cn
SERVICE BRAKES, HYDRAULIC
07/01/2011212/01/2010
 2010 lexus rx450h. consumer states problem with braking system *tgw the consumer noticed after driving the vehicle for a few months, that it sometimes surged forward a few feet while braking or when letting off the brake. the dealer informed the consumer the braking system was typical of a hybrid vehicle. the consumer stated a couple of weeks later, the vehicle surged forward again as she was braking. *jb
06/25/2011
 I was driving approximately 30 - 40 mph on the freeway. i went to make a lane change, looked over my shoulder to make sure lane was clear, as i turned back, the car in front of me stopped. i put on my brakes, there was no response from my brakes, they disengaged. my car surged forward and hit the car in front of me. my seatbelt did not have any tension, therefore, my body hit the steering wheel. nothing has been done. the accident just happened.
02/10/20114367
 Service brakes, march 13, 2011 - mansfield ma i purchased my 2010 lexus rx 450h in december 2010. ever since i bought it, i have noticed that from time to time, when i press the brake pedal, the car seems to surge forward(!) momentarily before it slows down. this happens most frequently. it will happen even if i am only coasting and not touching the gas pedal when pressing the brake initially. it happens to me at least once or twice a week. it is somewhat disturbing. i have mentioned this to my lexus dealer, but they have dismissed my concerns both times i brought it up. has anyone else noticed this issue? view details
11/28/2009900
 Tl*the contact owns a 2010 lexus rx450h. the contact was driving approximately 25 mph over a bumpy road surface. there was pressure applied to the brake pedal in which there was a delay power response. the driver was able to continue in operation. the failure occurred whenever encountering a bumpy road surface. in addition, during acceleration the vehicle became uncontrollable which occurred intermittent. the vehicle was taken to an authorized dealer for inspection. the technician was unable to detect a problem. the vehicle has not been repaired for the malfunction. the failure mileage was 900. updated 03/15/10 *bf