While driving home from work during rush hours my 2012 Chevy Impala's dashboard lights up saying " service traction control, service stabilink, engine power reduced" terrified as I was in the middle lane trying to get over as my car began to go into limp mode.I almost got rear ended due to this problem. I was accelerating from being stopped.

- Indianapolis, IN, USA

Service stabilitrak - reduced engine power lights came on along with the engine light while driving on the highway causing the vehicle to not be able to accelerate to the appropriate speed.

- Springfield, OH, USA

The contact owned a 2012 Chevrolet Impala. While reversing out of a parking lot, the vehicle accelerated without warning. The contact depressed the brake pedal, but the vehicle failed to stop. As a result, the vehicle finally stopped when it crashed into an embankment. The passenger was taken to sherman elgin hospital to receive medical attention for back, neck, and shoulder injuries. A police report was filed. The vehicle was destroyed and towed by the police to an unknown lot. The dealer and manufacturer were not notified. The vehicle was not diagnosed. The failure mileage was 51,564.

- Algonquin, IL, USA

Hub assembly

- Grand Prairie, TX, USA

The contact owns a 2012 Chevrolet Impala. While driving 40 mph, the traction control, traction stabilizer, and reduced engine power warning indicators illuminated. The contact stated that the vehicle never stalled; however, there was no response when the accelerator pedal was depressed. The vehicle was towed to an independent mechanic to be diagnosed. The vehicle was not diagnosed and a dealer was not contacted. The manufacturer stated that the issue could be due to the throttle body. The contact was also informed by the manufacturer that there was a special coverage to have the vehicle repaired. The vehicle was not repaired. The approximate failure mileage was 84,000.

- Dayton, OH, USA

The contact owns a 2012 Chevrolet Impala. After starting the engine and switching the shifter to the drive position, the vehicle suddenly went in reverse after the accelerator pedal was depressed. After turning off and restarting the engine, the vehicle operated normally. The vehicle was taken to the dealer, but the failure could not be duplicated. The manufacturer was not notified of the failure. The failure mileage was 19,500. Updated 12/13/16 updated 12/15/16.

- Red Wing, MN, USA

The contact owns a 2012 Chevrolet Impala. While driving approximately 35 mph, the vehicle suddenly accelerated, the steering wheel became difficult to maneuver, and the engine stalled. As a result of the failure, the rear end of the vehicle crashed into a pole. The contact sustained neck and back injuries that required medical attention. A police report was filed. The vehicle was towed to an independent mechanic, but the technician was unable to diagnose the cause of the failure. The vehicle was not repaired and the manufacturer was not notified of the failure. The contact was informed that the vehicle was included in NHTSA campaign number: 14V355000 (electrical system). The vehicle was not repaired. The approximate failure mileage was 88,000.

- Houston, TX, USA

While driving my car highway speed was 65mph, at that rate of speed my vehicle was picking up speed and when I went to press on my brakes, it was if I was driving on ice and my car was skidding. Two days later I stopped for gas and my car wouldn't start, after my 3rd attempt, it stuttered hard time turning over. Once it did I turned it off but the car was still running. I did this several times. Very scared to drive my car back home because I'm out of town. My lights says I have low right tire pressure but I don't, it's back left tire for some odd reason.

- Eastpointe, MI, USA

Car experienced complete engine and electrical system failure while accelerating onto busy highway. There was no emergency lane, so brought car to a halt blocking one lane. This was as very dangerous situation. Later determined that the cause was a loose hot wire terminal connection to the fuse box. It had either vibrated loose or was not tightened adequately at time of manufacture. Local dealer was not interested in reporting this event to the GM data base, so gave me a Chevrolet customer service number to call, which I did.

- Pine Bluff, AR, USA

The contact owns a 2012 Chevrolet Impala. The contact stated that while driving 10 mph, the vehicle accelerated independently without warning. The vehicle was taken to a dealer where the technician was unable to perform a diagnosis. The manufacturer was not made aware of the failure. The failure mileage was unknown and the current mileage was 44,000.

- Gilman, IL, USA

When driving with the engine at lower than normal driving temperature, driver stops at a stop sign and with hard acceleration the engine surges from full power to dying out as tho fuel starved.this continues in a jerking action. Until; the driver removes his foot from the accelerator and then presses the gas feed again at which time the engine runs smoothly. This has happened on numerous occasions, however the dealership can find nothing wrong as the engine is now at normal running temp. Driver was told the problem is in the throttle body of the fuel system --- help..

- Selinsgrove, PA, USA

I stopped at a intersection, and pulled out onto another road, the car backfired and quit running, leaving me in the middle of the intersection, and almost got hit. I have taken car to dealer and they say the car is operating normal. This happens alot within this vehicle when accelerating.

- Fairmint, WV, USA

Vehicle started via normal key ignition. After high idling stops for warm up, vehicle starts to have odometer needle move from 500 RPM to 1000 RPM for a steady 5 to ten minutes. In addition, event occurs frequently at long stops even after car warm. Usually, RPM may steady at about 750 or so a normal RPM setting for this vehicle. Took vehicle to dealer who kept it for a week. No correction made. Dealer state waiting to hear from manufacturer. Vehicle still have problem having needle flutter between the RPM mentioned causing undue distress to engine components. Please assist.

- Littleton, CO, USA

2012 Chevrolet Impala lt. Consumer states high pressure fuel pump is very noisy when accelerating from a stand still and also states issues with vibration the consumer stated the accelerator motor made a loud noise. The consumer stated the fuel lines, which apparently run directly under the driver's side floor, vibrate due to the harmonics set up by the high pressure fuel pump. The vibration is continuous and can be felt through the floor and up into the driver's seat.

- Auburn, NY, USA