NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
505 reports58,000 miles · Jun 7, 2013
Vehicle Speed Control
WE ARE LEASING A 2011 CHEVY IMPALA, AND WITH NO WARNING AFTER 3 CHIMES A MESSAGE WILL COME UP ON THE DASH STATING "SERVICE TRACTION CONTROL, ENGINE POWER REDUCED". THE VEHICLE WILL START TO SLOW DOWN AND SOMETIMES COMPLETELY SHUTS OFF WHILE DRIVING 65 MPH ON THE FREEWAY. TOOK IT TO THE DEALER AND THEY CHARGED ME $357.00 TO RE…
Read full complaint
WE ARE LEASING A 2011 CHEVY IMPALA, AND WITH NO WARNING AFTER 3 CHIMES A MESSAGE WILL COME UP ON THE DASH STATING "SERVICE TRACTION CONTROL, ENGINE POWER REDUCED". THE VEHICLE WILL START TO SLOW DOWN AND SOMETIMES COMPLETELY SHUTS OFF WHILE DRIVING 65 MPH ON THE FREEWAY. TOOK IT TO THE DEALER AND THEY CHARGED ME $357.00 TO REPLACE A DEFECTIVE COMPUTER CHIP IN THE GAS PEDAL. I DID SOME RESEARCH ON LINE AND THERE WERE A LOT OF CONSUMERS THAT EXPERIENCED THE SAME EXACT PROBLEM AND WHEN THEY TOOK THEIR VEHICLES INTO THE DEALER FOR REPAIR THEIR VEHICLES WERE DIAGNOSED WITH THE SAME ISSUE. I FEEL THIS IS A SAFETY PROBLEM BECAUSE NO ONE DRIVING BEHIND YOU EXPECTS YOUR VEHICLE TO SUDDENLY DRASTICALLY SLOW DOWN OR EVEN STOP WITH NO WARNING. THERE IS A POSSIBILITY THAT YOU COULD BE INJURED BY A REAR END ACCIDENT. I'M SURE BY NOW CHEVY IS AWARE OF THIS DEFECTIVE PART AND THEY SHOULD PUT OUT A RECALL TO FIX THIS PROBLEM SO THAT CONSUMERS ARE AWARE ABOUT IT AND NOT HAVE TO COME OUT OF POCKET FOR REPAIRS. *TR
NHTSA ODI #10515740
49,000 miles · Jun 5, 2013
Vehicle Speed Control
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE SPEED REDUCE ALERT ILLUMINATED AS THE VEHICLE SPEED INDEPENDENTLY DECELERATED TO 40 MPH. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION AND THEY STATED THAT THE ACCELERATOR CHIP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED.…
Read full complaint
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE SPEED REDUCE ALERT ILLUMINATED AS THE VEHICLE SPEED INDEPENDENTLY DECELERATED TO 40 MPH. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION AND THEY STATED THAT THE ACCELERATOR CHIP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 49,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10515313
Mileage unknown · May 8, 2013
Seats
REAR SEAT CENTER HEAD REST LIMITS VISIBILITY, SHOULD BE A RECALL ON THIS. IT IS A DEFINITE HAZARD. *TR
NHTSA ODI #10511170
45,758 miles · May 2, 2013
Electronic Stability Control (esc)EngineVehicle Speed Control
THIS HAS HAPPENED MULTIPLE TIMES TO MY 2011 IMPALA. I WILL BE DRIVING NORMALLY, ANYWHERE FROM 45 TO UP TO 65 MPH, AND I WILL GET A WARNING SAYING "SERVICE STABILTRACK, SERVICE TRACTION CONTROL, ENGINE POWER REDUCED". USUALLY I CAN SHUT THE CAR OFF AND WAIT 5 MINUTES, AND THE MESSAGES WILL CLEAR, BUT THE CHECK ENGINE LIGHT WILL R…
Read full complaint
THIS HAS HAPPENED MULTIPLE TIMES TO MY 2011 IMPALA. I WILL BE DRIVING NORMALLY, ANYWHERE FROM 45 TO UP TO 65 MPH, AND I WILL GET A WARNING SAYING "SERVICE STABILTRACK, SERVICE TRACTION CONTROL, ENGINE POWER REDUCED". USUALLY I CAN SHUT THE CAR OFF AND WAIT 5 MINUTES, AND THE MESSAGES WILL CLEAR, BUT THE CHECK ENGINE LIGHT WILL REMAIN ILLUMINATED FOR THE NEXT COUPLE OF DAYS, EVENTUALLY CLEARING. THERE NEEDS TO BE A RECALL FOR WHATEVER IS CAUSING THIS, BECAUSE THERE ARE A LOT OF FOLKS WITH IMPALAS HAVING THIS SAME EXACT PROBLEM. WE AS THE CONSUMER, SHOULD NOT HAVE TO PAY MONEY OUT OF OUR POCKET, FOR A PROBLEM THAT CHEVROLET CAUSED DURING THE MANUFACTURE OF THIS CAR. *TR
NHTSA ODI #10510397
49,000 miles · May 1, 2013
Power Train
STARTING FROM STOPPED POSITION, TRANSMISSION SLIPS WHEN PRESSING GAS PEDAL. NO ERROR CODES. ALSO WHEN COMING TO A COMPLETE STOP, AFTER STOPPING, THE VEHICLE JERKS, LIKE IT IS GOING FROM NEUTRAL INTO FIRST GEAR. *TR
NHTSA ODI #10510262
62,000 miles · Apr 22, 2013
Engine
HAD THE SERVICE LIGHT AND SERVICE STABITRAK AND REDUCED POWER COME ON. SEEMS TO HAPPEN A LOT DURING THE WINTER. I HAVE HAD THE GAS PEDAL REPLACED SEEMED TO HELP FOR A WEEK UNTIL SNOWED AGAIN BUT WAS DUE TO NICE WEATHER I HAVE ALSO HAD TO TAKE OFF THROTTLE BODY AND CLEANED WITH THROTTLE BODY CLEANER. SEEMED TO DO THE TRICK …
Read full complaint
HAD THE SERVICE LIGHT AND SERVICE STABITRAK AND REDUCED POWER COME ON. SEEMS TO HAPPEN A LOT DURING THE WINTER. I HAVE HAD THE GAS PEDAL REPLACED SEEMED TO HELP FOR A WEEK UNTIL SNOWED AGAIN BUT WAS DUE TO NICE WEATHER I HAVE ALSO HAD TO TAKE OFF THROTTLE BODY AND CLEANED WITH THROTTLE BODY CLEANER. SEEMED TO DO THE TRICK UNTIL IT SNOWED AGAIN. IT IS VERY DANGEROUS WHEN THIS HAPPENS AND ALMOST CAUSED A CRASH. THE PROBLEM SEEMS TO BE WITH THE SENOR BUT WORKS FINE WHEN NOT WET OUT OR SNOWING. AFTER LOOKING ONLINE SEEMS TO BE A VERY COMMON PROBLEM WITH CHEVY WITH THEM NOT DOING A THING OTHER THEN WANTING TO CHARGE ME 600 BUCKS TO REPLACE THROTTLE BODY. SEEMS LIKE CHEVY NEVER WANTED TO FIX THIS ISSUE DUE TO THE FACT OF ALOT OF OTHER MODELS OF CHEVY HAVE THE SAME PROBLEM GOING BACK ATLEAST 4-5 YEARS. *TR
NHTSA ODI #10509175
48,000 miles · Apr 1, 2013
Electronic Stability Control (esc)Engine
THE SERVICE STABILITRAK LIGHT COMES ON AND ENGINE POWER IS REDUCED. IT HAPPENED THIS MORNING WHILE TAKING MY KIDS TO SCHOOL...VERY SCARY THING WHEN KIDS ARE IN THE CAR BECAUSE IT JUST STARTS LOSING POWER & YOU REALLY CANNOT DRIVE IT LIKE THIS.. *TR
NHTSA ODI #10505186
50,350 miles · Mar 30, 2013
Electronic Stability Control (esc)Fuel/propulsion System
THE CHECK STABILILINK / REDUCED ENGINE POWER LIGHT CAME ON AT START. AFTER SHUTTING THE VEHICLE DOWN AND RESTARTING THE LIGHT WENT OFF. I WAS TRAVELING ON THE HIGHWAY WHEN THE REDUCED ENGINE POWER LIGHT CAME ON. I PULLED OVER, RESTARTED THE CAR AND IT WAS FINE. AFTER STOPPING AND RESTARTING SEVERAL MORE TIMES, THE ENGINE LIGHT R…
Read full complaint
THE CHECK STABILILINK / REDUCED ENGINE POWER LIGHT CAME ON AT START. AFTER SHUTTING THE VEHICLE DOWN AND RESTARTING THE LIGHT WENT OFF. I WAS TRAVELING ON THE HIGHWAY WHEN THE REDUCED ENGINE POWER LIGHT CAME ON. I PULLED OVER, RESTARTED THE CAR AND IT WAS FINE. AFTER STOPPING AND RESTARTING SEVERAL MORE TIMES, THE ENGINE LIGHT REMAINS ON AND THE CHECK. THE STABILIZING WARNING CONTINUES. THE CAR IS COMPLETELY UNRELIABLE AT THIS TIME. SINCE THIS OCCURRED OVER EASTER, THERE ARE NO MECHANICS AVAILABLE,LEAVING ME WITH NO CAR AND CANCELLED APPOINTMENTS AND LOST WAGES TO START THE WEEK. *TR
NHTSA ODI #10505100
43,000 miles · Mar 30, 2013
Electronic Stability Control (esc)EngineVehicle Speed Control
DRIVING 30 MPH IN A SMALL TOWN. A "BINGING" NOISE SOUNDS 3 TIMES AND THE TRACTION CONTROL WARNING LIGHT AS WELL AS THE CHECK ENGINE LIGHT CAME ON. VEHICLE MESSAGING SYSTEM STATED THAT TO "SERVICE STABILITRAK," "SERVICE TRACTION CONTROL," AND "ENGINE POWER REDUCED. THE ACCELERATION WAS NOTICEABLY REDUCED AS WELL AS A SIGNIFICANT …
Read full complaint
DRIVING 30 MPH IN A SMALL TOWN. A "BINGING" NOISE SOUNDS 3 TIMES AND THE TRACTION CONTROL WARNING LIGHT AS WELL AS THE CHECK ENGINE LIGHT CAME ON. VEHICLE MESSAGING SYSTEM STATED THAT TO "SERVICE STABILITRAK," "SERVICE TRACTION CONTROL," AND "ENGINE POWER REDUCED. THE ACCELERATION WAS NOTICEABLY REDUCED AS WELL AS A SIGNIFICANT DIFFERENCE IN MAINTAINING SPEED. MERGING ONTO A HIGHWAY THE CRUISE CONTROL WOULD NOT KICK IN WHEN SETTING SPEED WHICH MADE IT DIFFICULT TO MANAGE A 65 MPH SPEED LIMIT. *TR
NHTSA ODI #10505019
36,000 miles · Mar 28, 2013
Engine And Engine Cooling
WE WERE ON THE TURNPIKE GOING ABOUT 60MPH WHEN THE ENGINE LIGHT CAME ON. THE SERVICE LIGHT FOR TRACTION CONTROL AND SERVICE STABILITRAK WARNINGS CAME UP ON THE DASH. IT ALSO SAID REDUCING POWER TO ENGINE. THE CAR SLOWED IN SPEED AND BEGAN SHAKING. SERVICE THROTTLE CAME UP ON DASH ALSO. WE HAD NO WHERE TO PULL OFF. THERE IS NOT M…
Read full complaint
WE WERE ON THE TURNPIKE GOING ABOUT 60MPH WHEN THE ENGINE LIGHT CAME ON. THE SERVICE LIGHT FOR TRACTION CONTROL AND SERVICE STABILITRAK WARNINGS CAME UP ON THE DASH. IT ALSO SAID REDUCING POWER TO ENGINE. THE CAR SLOWED IN SPEED AND BEGAN SHAKING. SERVICE THROTTLE CAME UP ON DASH ALSO. WE HAD NO WHERE TO PULL OFF. THERE IS NOT MUCH OF A BURM ON THIS INTERSTATE AND BEFORE WE COULD GET TO A PULL OFF AREA THE CAR SHUT DOWN IN THE ROAD. WE HAD TO SET THERE FOR 10 MINUTES BEFORE THE CAR WOULD RESTART SO THAT WE COULD GET TO A SAFER PLACE. I HAD MY CHILDREN IN THE CAR IN THE MIDDLE OF THIS ROAD WITH TRACTOR TRAILERS SWERVING AROUND ME CONSTANTLY. ALL I COULD DO WAS PRAY NO ONE WOULD HIT US. WE EVEN CONTACTED 911 FOR ASSISTANCE. SINCE THIS DAY WE HAVE HAD THE SAME CONTINUOUS PROBLEMS. I WILL NOT TRAVEL ON THE INTERSTATES WITH THIS VEHICLE FOR FEAR OF THIS HAPPENING AGAIN. THERE DOESN'T SEEM LIKE THERE IS ANY ONE PARTICULAR THING THAT SETS THIS OFF. BUT SEEMS TO BE WORSENING. I FEEL THIS IS A SAFETY ISSUE AND SHOULD BE TAKEN CARE OF BY GM. FROM THE CHEVY FORUMS ON THE IMPALA IT SEEMS THIS A PROBLEM WITH THEIR IMPALAS AND THEY SHOULD HAVE TO REPAIR THIS PROBLEM WITH NO COST TO THE CONSUMER BEFORE SOMEONE IS KILLED. *TR
NHTSA ODI #10504799