Which parts fail
Components named in complaints (accelerator pedal, throttle, sudden acceleration, cruise control).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2010 Chevrolet Impala owners, lightly cleaned up (personal details are redacted by NHTSA).
I bought a used car as is for $6700.00 and was told that the car was nothing wrong with it but within the first month 07/02/25 the car has been to 3 different shops and in the shop 5 different times all due to brake problems since I bought the car I have had to replace both front calipers and rotors brake pads wheel bearings and on the back both brake pads plus new tires and it's still not fixed the ABS traction and stability lights are on i could of caused a wreck I only drive it to the store with the money I had paid for the car putting it in a shop I shouldn't of had to do they sold me a dangerous car
I started my vehicle in the morning to let it warm up. I come back out to get myself and my son in the vehicle to go to work and take him to school. My dash upon entry had a check engine light on, and the message it displayed was "engine power reduced." I put my car into reverse, having no choice but to drive it and the traction control went out. My father in law pulled the code and it said something about the accelerator sensor. This is a known issue and recall in other models and I wanted to report it is also happening in my model.
Service stabilitrak message displayed and reduced engine power to 0 mph while driving. Throttle body, Accelerator pedal position sensor (whole pedal assembly), and ecm replaced. Issue continues. P2138, P2122, P2127 codes present. Stonebriar chevrolet incompetent to resolve.
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. …
Driving home one night after just having my vehicle repaired a few weeks earlier, without warning, my vehicle began to stall. Just before the stall it was driving completely normal with no issues at all. Suddenly the check engine light came on along with the messages of service stabiltrack, traction control disabled, and low engine power. When I took the vehicle to the dealer I bought it from I was told that there was an aftermarket senondary air check valve that was causing the issue. With this they gave me the following codes; p0068, p0340, p0651, and p2135. Due to me just recently getting this part replaced this past February I took it back to the mechanic that replaced it. When I received the vehicle back it would no longer even start. …
As I was driving on a state route, alerts appeared for "service traction control" and then "service stabilitrak" followed by "engine power reduced". The engine light also came on. I pulled over and shut the car off, waiting a few minutes before restarting. The messages stopped, but the engine light was still on. I drove a few more miles and approached the on-ramp to the interstate. As I accelerated to merge onto the interstate, the same alerts came back on in addition to "starting disabled, service throttle". Shortly thereafter, my car became completely disabled and shut down as I was on the interstate- the engine cut off, no power steering, no acceleration!! Thankfully, I was able to safely pull off the side of the interstate. I had the vehicle towed and the car started right up and seems to run fine at the repair shop. Worried when and where it will happen again.
Reduced engine power, stabilitrac and traction control messages. While driving 2010 Impala .comes on without warning car loses power down to 20 MPH I was driving 55 MPH on highway pulled over shut car off waited few minutes car restarted then not 5 minutes later did same thing only this time engine shut off was able to coast off road thank goodness called GM they told me it was out of warranty but was under special conditions .take it to GM dealer so few days later got in it to take to dealer ,no lights on drove fine .dealer told me to bring it back if and when warning lights came on again wow! Read this same issue on forums GM should have a recall on this very dangerous issue .called GM back after getting home they more less told me yes it should have been a recall but it isn't so have good day the cost is on you
Tl* the contact owns a 2010 Chevrolet Impala. While driving 20 MPH, "service stabilitrac and traction control, May lose some engine power." was displayed across the message board. The vehicle was taken to a dealer where it was diagnosed that the line that goes to the accelerator pedal needed to be replaced. The vehicle was repaired; however, the failure recurred on numerous occasions. While driving 20 MPH, the vehicle stalled. The contact did not attempt to restart the vehicle. The vehicle was towed to a dealer who diagnosed that the line that goes to the oil sensor was corroded and needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 42,000. ...updated 01/20/16 updated 02/05/16
Tl* 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.
The transmission go out at any time while you're driving it'll just stopped in the middle of traffic which can cause an accident the company Chevrolet new that they put bad transmission in those cars and lights blink on and off. Electrical issue the speedometer and the gas meter in moves by itself when the car is off and when you are driving the car it'll move by itself displaying accurate information and that's very dangerous I was on the highway in the transmission just went out in cars almost ran into me I like to buy that day because of the transmission everybody I know with this car has the same issue something really needs to be done about it before someone dies
Acceleration complaints in other Impala years
Frequently asked questions
How common are acceleration problems on the 2010 Chevrolet Impala?
NHTSA has 47 complaints about the speed control & acceleration of the 2010 Chevrolet Impala, 11% of the model year's 442 complaints. The component named most often is accelerator pedal (1 mentions).
Is there a recall for 2010 Chevrolet Impala acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 2010 Chevrolet Impala, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2010 Chevrolet Impala acceleration problems start?
Half of the complaints with a recorded mileage happened before about 74,000 miles, and 5% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 0 fires and 1 injury to speed control & acceleration problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.