Accelerator Pedal Sensor problems of the 2010 Chevrolet Impala

The contact owns a 2010 Chevrolet Impala. While driving 35 mph, the "engine power reduced" and "service traction control" warning indicators illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the accelerator pedal position sensor failed and needed to be replaced. The vehicle was repaired. A dealer was not contacted. The manufacturer was made aware of the failure and provided the number to NHTSA. The approximate failure mileage was 108,000.

2010 Chevrolet Impala. Consumer writes in regards to vehicle sudden acceleration caused by sticky throttle accidents before receiving accelerator pedal position pedal sensor and throttle position sensor recall notices. The consumer stated she was backing out of the driveway, when the vehicle took off like a missile. It traveled across the street, jumped a curb and hit a parked vehicle in the driveway causing damage to both vehicles. The dealer claimed there was nothing wrong with the accelerator. However, the accident was caused by a sticky throttle. When the second accident occurred, the consumer was attempting to back the vehicle up, but instead it accelerated backwards at a high rate of speed making a high pitch whining noise. The consumer quickly applied the brake. However, it not reduce the speed. The consumer hit an oak tree, and in doing so, caused the tree to fall on the vehicle. The vehicle was totaled. Between the first and second accident, the throttle was repaired and the accelerator was replaced.

Traction control light and engine reduce speed light came on and car started stutter and slow down on the highway. Replace throttle body twice and replace gas pedal sensor.

While driving northbound on I-75 in southern ky, the car suddenly lurched a little and "traction control" and "stabilization" errors displayed followed by "reducing power. " and, the check engine light came on. I called my chevy dealer and asked if it was safe to continue driving - they said yes, as long as the check engine light wasn't flashing. We went about 5 - 10 more miles and the display flashed something about throttle problem and then "shutting down engine", which it did immediately with no warning while we were doing about 70 - 75mph in the middle of the 3 northbound lanes of I-75. I had to try to steer to the shoulder with no power steering or brakes. Once there, I tried to restart the car and nothing happened - it displayed "starter disabled. " we called our road service and they took our info, found the nearest chevy dealer who said they could work on it ASAP if we got it in there. While they were working on setting up a tow I tried starting it again. It started but the check engine was still on. I tried driving a little along the shoulder and it seemed ok so I said we'd try driving to the dealer rather than wait for a tow truck. We made it. They got on it fairly quickly and found the problem was the gas pedal position sensor. We were fortunate that the traffic was light and I could safely pull off. I hate to think what the results would have been if this had happened earlier as we were travelling thru atlanta with its 6 lanes of heavy traffic. Suddenly losing power and control in that traffic would probably have caused one of those multi-vehicle accidents that make the national news. What kind of incompetent programming of the car's computer would trigger a full, instant shutdown because of a faulty accelerator pedal position sensor? I would suggest an immediate recall to re-flash the computer to eliminate the no-warning shut down.

The contact owns a 2010 Chevrolet Impala. The contact stated that the reduced engine power warning lamp and the service stability traction control warning lamp illuminated. Each time the failure recurred, the speed decreased to less than 20 mph and the vehicle shook and vibrated abnormally. The vehicle was towed to a dealer who replaced the throttle body position sensor. The manufacturer stated that the accelerator pedal position sensor was to be replaced in a special condition coverage customer satisfaction campaign. The failure did not recur from the dealer's repair which was over a year ago. The manufacturer was notified of the failure. The approximate failure mileage was 60,700.

My wife was driving on interstate and all of a sudden lights start flashing on dash board saying traction control, engine performance reduced and check engine light comes on. Car completely shuts down on major highway. Gm needs to do something!!!! before someone seriuosly gets hurt or worse. Went to auto shop and they said it is the accelerator pedal sensor gone bad already at 56,103 ? I just bought the car, and only had it for 1 year. I will never buy anything gm makes or recommended there vehicles to family or friends this is ridiculous. Someone needs to care about public safety because obviously they do not. Please do a recall and save a life !!!!!.

Driving home Friday night 12/26/12 on cruise set at 65, bang, car dropped power drastically, kicked off cruise, and the three rotating messages appeared on dash, 1)service stabilitrak, 2)service traction control, & 3)engine power reduced. Both orange placards lit up on dash, service engine and traction. Pulled out of traffic and re started the car. Was able to drive at normal speeds but codes still rotating and placards still lit. Couldn't get it into the shop until Monday 12/31/12. When I started it up to take it in, codes were all cleared and car ran just fine. Dealership told me it was the pedal sensor and would cost me $275 to repair. How can we get gm to do a recall on this on going issue? this is a 2010 chevy Impala lt with 45000 on it. This repair should be covered under warranty and I was told it is not. There have been numerous individuals with this same sensor failing at about 45000 miles. A sudden drop in power to a speed of 25 while driving at highway speeds is very dangerous. It is amazing with as many failures as have been reported to gm on just the edmunds car form site alone that there have not been any serious crashes. Please take a good look at this issue and see if you can't get gm to recall these sensors and get them replaced with better ones.