NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
505 reports88,000 miles · Mar 29, 2015
Electrical SystemEngine
WHILE DRIVING ON THE HIGHWAY THE "SERVICE TRACTION CONTROL" MESSAGE COMES ON, THEN, THE MESSAGES "SERVICE STABILITY TRAK" THEN "ENGINE POWER IS REDUCED". AND THEN THE CAR SHUTS DOWN I HAD TO QUICKLY PULL OVER ON THE SIDE OF THE ROAD. AFTER A FEW MINUTES THE CAR STARTS UP AND EVERYTHING IS FINE. THIS HAPPENED TWICE SINCE THEN…
Read full complaint
WHILE DRIVING ON THE HIGHWAY THE "SERVICE TRACTION CONTROL" MESSAGE COMES ON, THEN, THE MESSAGES "SERVICE STABILITY TRAK" THEN "ENGINE POWER IS REDUCED". AND THEN THE CAR SHUTS DOWN I HAD TO QUICKLY PULL OVER ON THE SIDE OF THE ROAD. AFTER A FEW MINUTES THE CAR STARTS UP AND EVERYTHING IS FINE. THIS HAPPENED TWICE SINCE THEN. EVERY COUPLE MONTHS THE SENSOR LIGHTS WOULD COME ON WITH THE ABOVE MESSAGE-WITHOUT CAR SHUTTING DOWN. THE LIGHTS COME ON A LOT MORE OFTEN NOW-ALTHOUGH THE CAR DOES NOT SHUT DOWN, IT'S THE FEAR OF THE POSSIBILITY. WHEN GOOGLING THIS PROBLEM WITH THE CAR IT SOUNDS LIKE THIS IS A COMMON PROBLEM. I'M NOT SURE WHY THERE HASN'T BEEN A RECALL. I'M BRINGING IN MY CAR TOMORROW TO GET FIXED. HOWEVER, ITS UPSETTING THAT THERE SEEMS TO BE A PROBLEM WITH THE THROTTLE POSITION SENSOR, AND THERE WAS A RECALL ON A GMC TRUCK IN 2008 FOR THIS PROBLEM. THIS SEEMS TO BE A PROBLEM REGARDLESS OF YEAR OF MILES OF THE IMPALA. *TR
NHTSA ODI #10702423
67,500 miles · Mar 23, 2015
Engine And Engine CoolingFuel/propulsion System
WHILE DRIVING MY CAR STARTED HESITATING. THE WHEEL TRACTION AND ENGINE LIGHT CAME ON, IT HAD THREE MESSAGES COME UP STATING ENGINE LOSING POWER,TRACTION STABILITY NEEDED I CAN'T RECALL THE LAST MESSAGES. IT COMES AND GOES ON AND OFF. *TR
NHTSA ODI #10701098
95,000 miles · Mar 20, 2015
EngineSteeringVehicle Speed Control
I WAS DRIVING ON A HIGHWAY GOING APPROXIMATELY 55 MPH, THE ENGINE LIGHT, STABILITY CONTROL LIGHT, AND REDUCED ENGINE POWER LIGHT CAME ON AT THE SAME TIME. WITHIN TWO (2) MINUTES OF THE DASH WARNING LIGHTS COMING ON, THE CAR COMPLETELY SHUT IT SELF OFF WHILE I WAS DRIVING IN THE LEFT LANE GOING 55 MPH. I LOST STEERING, HAD …
Read full complaint
I WAS DRIVING ON A HIGHWAY GOING APPROXIMATELY 55 MPH, THE ENGINE LIGHT, STABILITY CONTROL LIGHT, AND REDUCED ENGINE POWER LIGHT CAME ON AT THE SAME TIME. WITHIN TWO (2) MINUTES OF THE DASH WARNING LIGHTS COMING ON, THE CAR COMPLETELY SHUT IT SELF OFF WHILE I WAS DRIVING IN THE LEFT LANE GOING 55 MPH. I LOST STEERING, HAD NO POWER, OR BRAKING. I THREW THE CAR IN NEUTRAL, IN AN ATTEMPT TO GET IT STARTED IT WHILE I WAS IN MOTION WITH NO POWER. THE IMPALA DIDN'T EVEN TRY TO TURN OVER. THE CAR WASN'T RESPONDING BECAUSE THE POWER STEERING / BRAKING WAS NOT RESPONDING. THE IMPALA WENT INTO "LIMP MODE" WITHOUT WARNING. I LET THE CAR COST FOR A WHILE UNTIL I COULD FIND A SAFE SPOT TO APPLY THE EMERGENCY BRAKE. I REALLY HAD TO MUSCLE THE STEERING WHEEL WITH SOME SIGNIFICANT FORCE TO GET IT TO TURN. I HAVE NEVER HAD ANY PROBLEMS WITH THIS VEHICLE BEFORE THIS ISSUE. IT TURNS OUT THAT THE "PEDALASSEMBLY" GAS PEDAL SENSOR WENT BAD, CAUSING THE 2011 IMPALA TO GO INTO "LIMP MODE" WHILE I WAS DRIVING. *TR
NHTSA ODI #10700572
53,723 miles · Mar 17, 2015
Electronic Stability Control (esc)Power Train
I PURCHASED THE IMPALA ON JUNE 16, 2014, THERE WAS SOME POPPING NOISE FROM THE DASH BOARD ON THE PASSENGER'S SIDE. THE SALE'S MANAGER HAD ME BRING THE CAR IN FOR REPAIR THE NEXT DAY. THE CAR WAS REPAIRED WITHIN 2-3 DAYS. I FOUND OUT IT WAS THE ACTUATOR SENSOR. IN JANUARY 2015 THE TRANSMISSION HAD TO BE REPLACED. LUCKILY IT …
Read full complaint
I PURCHASED THE IMPALA ON JUNE 16, 2014, THERE WAS SOME POPPING NOISE FROM THE DASH BOARD ON THE PASSENGER'S SIDE. THE SALE'S MANAGER HAD ME BRING THE CAR IN FOR REPAIR THE NEXT DAY. THE CAR WAS REPAIRED WITHIN 2-3 DAYS. I FOUND OUT IT WAS THE ACTUATOR SENSOR. IN JANUARY 2015 THE TRANSMISSION HAD TO BE REPLACED. LUCKILY IT WAS UNDER THE POWERTRAIN WARRANTY. NOW 8 MONTHS LATER TO THE DATE (MARCH 12, 2015), THE STABILIZER TRACK-ENGINE REDUCE POWER LIGHT AND MESSAGE CAME. I CAME TO A STOP. CUT THE CAR OFF FOR 15-20 MINUTES ONLY FOR THE LIGHT TO REAPPEAR AFTER MOMENTS OF DRIVING. I GOT TO WORK. THE CAR SAT FOR 9 HOURS AND STILL THE LIGHT ILLUMINATED IMMEDIATELY UPON STARTING THE CAR. I FOUND OUT IT IS THE SAME PROBLEM AND THE EXTENDED WARRANTY DOES NOT WANT TO COVER IT. I AM AT MY WITS END AND NOW THE FINANCE COMPANY WANTS ME TO CONTINUE TO PAY MY MONTHLY CAR NOTE FOR A CAR THAT IS NOT TOTALLY DRIVABLE...WHY??? GM SHOULD PAY!!! *TR
NHTSA ODI #10694903
54,000 miles · Mar 17, 2015
Electrical SystemVehicle Speed Control
I WAS DRIVING TO A JOB INTERVIEW ON A BARELY MOISTENED ROAD. SERVICE CONTROL THEN PROCEEDED TO POP UP ON MY DASH BOARD ALONG WITH THE CHECK ENGINE LIGHT AND REDUCING ENGINE POWER. MY CAR THEN SHUT OFF AND I WASN'T ABLE TO CRANK IT FOR ABOUT 5 MINUTES. *TR
NHTSA ODI #10694831
Mileage unknown · Mar 12, 2015
Electrical System
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT RECEIVED A NOTICE FOR NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM) AND FELT THE REPAIR WAS INACCURATE. THE DEALER STABILIZED THE KEY, BUT THE IGNITION FAILURE STILL OCCURRED. THE MANUFACTURER STATED THAT THE VEHICLE WOULD NOT BE REPAIRED AGAIN. THE FAILURE MILEAGE…
Read full complaint
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT RECEIVED A NOTICE FOR NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM) AND FELT THE REPAIR WAS INACCURATE. THE DEALER STABILIZED THE KEY, BUT THE IGNITION FAILURE STILL OCCURRED. THE MANUFACTURER STATED THAT THE VEHICLE WOULD NOT BE REPAIRED AGAIN. THE FAILURE MILEAGE WAS UNKNOWN.
NHTSA ODI #10693950
Mileage unknown · Mar 5, 2015
Air BagsElectrical SystemService BrakesCrashInjury
TL*THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE APPROACHING A STOP SIGN, THE BRAKE PEDAL WAS DEPRESSED BUT THE VEHICLE FAILED TO STOP. AS A RESULT THE CONTACT CRASHED INTO A CURB AND AN EMBANKMENT. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED SHOULDER AND RIGHT HIP INJURIES BUT DID NOT REQUIRE …
Read full complaint
TL*THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE APPROACHING A STOP SIGN, THE BRAKE PEDAL WAS DEPRESSED BUT THE VEHICLE FAILED TO STOP. AS A RESULT THE CONTACT CRASHED INTO A CURB AND AN EMBANKMENT. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED SHOULDER AND RIGHT HIP INJURIES BUT DID NOT REQUIRE MEDICAL ATTENTION. THE FRONT PASSENGER SUSTAINED ANKLE INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED AND THE CONTACT WAS UNSURE IF THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM). THE FAILURE MILEAGE WAS UNKNOWN. UPDATED 7/23/15*CN UPDATED 11/9/2015 *JS
NHTSA ODI #10692249
65,000 miles · Feb 23, 2015
Vehicle Speed Control
TL*THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE ACCELERATOR PEDAL BECAME STUCK WHEN DEPRESSED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHERE IT WAS DIAGNOSED THAT THE ACCELERATOR PEDAL NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT …
Read full complaint
TL*THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE ACCELERATOR PEDAL BECAME STUCK WHEN DEPRESSED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHERE IT WAS DIAGNOSED THAT THE ACCELERATOR PEDAL NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 65,000. THE VIN WAS NOT AVAILABLE.
NHTSA ODI #10690092
Mileage unknown · Feb 23, 2015
Electrical System
2011 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO NOT RECEIVING A RECALL LETTER REGARDING THE IGNITION. *SMD
NHTSA ODI #10668001
55,575 miles · Feb 19, 2015
Power TrainService BrakesVehicle Speed Control
MY WIFE WAS DRIVING HOME FROM WORK GOING 65 DOWN A VERY BUSY HIGHWAY. ALL OF A SUDDEN THE REDUCED ENGINE POWER LIGHT, CHECK ENGINE, STABILITY CONTROL OFF, AND TRACTION CONTROL LIGHTS CAME ON. THE CAR BEGIN TO LOOSE SPEED. LUCKILY SHE WAS ABLE TO GET OVER TO THE RIGHT SHOULDER WITHOUT ANYONE HITTING HER. WHEN SHE GOT TO TH…
Read full complaint
MY WIFE WAS DRIVING HOME FROM WORK GOING 65 DOWN A VERY BUSY HIGHWAY. ALL OF A SUDDEN THE REDUCED ENGINE POWER LIGHT, CHECK ENGINE, STABILITY CONTROL OFF, AND TRACTION CONTROL LIGHTS CAME ON. THE CAR BEGIN TO LOOSE SPEED. LUCKILY SHE WAS ABLE TO GET OVER TO THE RIGHT SHOULDER WITHOUT ANYONE HITTING HER. WHEN SHE GOT TO THE SHOULDER THE CAR WAS RUNNING REALLY ROUGH. SHE TURNED IT OFF WAITED A FEW MINUTES AND RESTARTED IT. IT THEN RAN FINE BUT THE CHECK ENGINE LIGHT REMAINED ON. SHE MADE IT HOME AND WAS SCARED TO DRIVE IT AGAIN. I TOOK IT TO WORK LAST NIGHT AND MADE IT ABOUT HALFWAY TO WORK AND IT DID THE EXACT SAME THING EXCEPT I WAS ABLE TO GET IT TO MAINTAIN 45MPH. WHEN I CAME TO A TRAFFIC LIGHT THOUGH THE ENGINE WAS RUNNING SO ROUGH THE CAR WAS VERY HARD TO STOP. I MADE IT TO WORK. WHEN I CAME OUT TO GO HOME THE FIRST STOP LIGHT I CAME TO IT STARTED ACTING UP AGAIN. FROM THE LIGHT I WAS BARELY ABLE TO GET IT TO GO 25MPH. I PULLED OVER AND SHUT THE CAR OFF WAITED A FEW MINUTES AND RESTARTED. EVERYTHING WAS FINE AGAIN. I MADE IT ABOUT 5 MILES AND ALL THE LIGHTS CAME ON AGAIN BUT I WAS ABLE TO MAINTAIN 45MPH IN THE 55MPH ZONE I WAS IN. I TOOK IT TO MY REPAIR SHOP AND THEY SAID IT NEEDS A THROTTLE BODY. THEY ALSO SAID GM HAS HAD ALLOT OF ISSUES WITH THESE. I CALLED MY GM DEALER TO SEE IF IT WOULD BE COVERED UNDER 5 YEAR 100K MILE WARRANTY AND THEY SAID THAT IT ISN'T. IF THERE HASN'T BEEN AN ACCIDENT CAUSED BY ONE OF THESE THROTTLE BODY ISSUES YET I WOULD BE SURPRISED. IT'S VERY DANGEROUS IN HEAVY TRAFFIC AND ALL OF A SUDDEN YOU CAN'T GO. *TR
NHTSA ODI #10689379