NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
64 reportsClear category filter79,500 miles · May 30, 2016
Electronic Stability Control (esc)EnginePower Train
MY CAR JUST REACHED 79,000 MILES AND I WAS DRIVING WHEN MY CAR CUT OFF IN THE MIDDLE OF TRAFFIC! THIS HAPPENED TWICE IN THE SAME DRIVE. IT IMMEDIATELY STARTED BACK UP BUT THEN THE CHECK ENGINE LIGHT CAME ON ALONG WITH A STABILITRAK ERROR MESSAGE. THEN A MESSAGE SAYING ENGINE POWER IS REDUCED. NOW THE CAR'S ENGINE IS MAKI…
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MY CAR JUST REACHED 79,000 MILES AND I WAS DRIVING WHEN MY CAR CUT OFF IN THE MIDDLE OF TRAFFIC! THIS HAPPENED TWICE IN THE SAME DRIVE. IT IMMEDIATELY STARTED BACK UP BUT THEN THE CHECK ENGINE LIGHT CAME ON ALONG WITH A STABILITRAK ERROR MESSAGE. THEN A MESSAGE SAYING ENGINE POWER IS REDUCED. NOW THE CAR'S ENGINE IS MAKING A TERRIBLE NOISE AND IS HAVING PROBLEMS ACCELERATING WITHOUT MAKING A LOUD SOUND LIKE AIR TRYING TO BLOW THROUGH A PINHOLE. THE CHEVY SERVICE DEPARTMENT I TOOK IT TO WANTS ALMOST $700 JUST TO TAKE IT APART TO SEE WHAT IT WRONG WITH IT, WHICH DOESN'T INCLUDE THE POSSIBLE AMOUNT FOR REPAIR. AND THEY DID NOT LOOK AT ANY OF THE TECHNICAL SERVICE BULLETINS LIKE REQUESTED! NOW THEY ARE SAYING MY CAR IS NOT ABLE TO BE DRIVEN AT ALL. I WENT ONLINE AND STARTED TO RESEARCH THESE ISSUES AND FOUND THAT THERE HAS BEEN A LOT OF COMPLAINTS ABOUT THESE EXACT ISSUES MOST EVEN THE SAME YEAR. THERE IS NO REASON THAT A CAR WITH 79000 MILES SHOULD HAVE ENGINE PROBLEMS. I OWNED A 2003 IMPALA PRIOR TO THIS ONE AND HAD ALMOST 125000 MILES BEFORE I PURCHASED THIS 2011. THERE ARE WAY TOO MANY COMPLAINTS GOING ON WITH THIS CAR FOR IT NOT TO BE RECALLED.
NHTSA ODI #10871448
68,800 miles · May 26, 2016
Electronic Stability Control (esc)Power TrainVehicle Speed Control
DRIVING DOWN THE HIGHWAY THE CAR SHOOK AND JERKED THEN THE ENGINE POWER REDUCED, SERVICE STABILITRACK, AND SERVICE TRACTION CONTROL SHOWED UP ON MY DASHBOARD. THE CHECK ENGINE LIGHT CAME ON AND SO DID THE TRACTION LIGHT AND THEY STAYED ON. THE RPM METER IS AVERAGING BETWEEN 3 AND 4 WHEN IT USUALLY AVERAGES BETWEEN 1 AND 2. ALSO,…
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DRIVING DOWN THE HIGHWAY THE CAR SHOOK AND JERKED THEN THE ENGINE POWER REDUCED, SERVICE STABILITRACK, AND SERVICE TRACTION CONTROL SHOWED UP ON MY DASHBOARD. THE CHECK ENGINE LIGHT CAME ON AND SO DID THE TRACTION LIGHT AND THEY STAYED ON. THE RPM METER IS AVERAGING BETWEEN 3 AND 4 WHEN IT USUALLY AVERAGES BETWEEN 1 AND 2. ALSO, THE SPEED HAS BEEN REDUCED.
NHTSA ODI #10871113
120,473 miles · Mar 4, 2016
EnginePower TrainUnknown Or Other
SERVICE TRACTION CONTROL AND CHECK ENGINE LIGHTS CAME ON THIS MORNING. THEN A MESSAGE SAYING MY ENGINE POWER IS REDUCING. I JUST BOUGHT THIS CAR 3 WEEKS AGO. I CALLED GM CUSTOMER SERVICE AND THEY TOLD ME THERE WAS NOTHING THEY COULD DO, EVEN THOUGH THERE WAS A RECALL REGARDING THIS BECAUSE IT WAS OVER THE 120000 MILE WARRANTY (B…
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SERVICE TRACTION CONTROL AND CHECK ENGINE LIGHTS CAME ON THIS MORNING. THEN A MESSAGE SAYING MY ENGINE POWER IS REDUCING. I JUST BOUGHT THIS CAR 3 WEEKS AGO. I CALLED GM CUSTOMER SERVICE AND THEY TOLD ME THERE WAS NOTHING THEY COULD DO, EVEN THOUGH THERE WAS A RECALL REGARDING THIS BECAUSE IT WAS OVER THE 120000 MILE WARRANTY (BUT I JUST BOUGHT THIS CAR 3 WEEKS AGO!!!)
NHTSA ODI #10839873
44,815 miles · Jan 6, 2016
EnginePower TrainVehicle Speed Control
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING 65 MPH, THE ENGINE STALLED AND THE ENGINE STABILITY POWER REDUCTION WARNING LIGHT ILLUMINATED. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE ACCELERATOR PEDAL AND RE-LEARNED IDLE FAILED AND NEEDED TO BE REPLACED. …
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TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING 65 MPH, THE ENGINE STALLED AND THE ENGINE STABILITY POWER REDUCTION WARNING LIGHT ILLUMINATED. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE ACCELERATOR PEDAL AND RE-LEARNED IDLE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. ALSO, WHILE DRIVING AT VARIOUS SPEEDS, THE GEAR SHIFT BECAME INOPERABLE. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION WAS FAILING AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS APPROXIMATELY 44,815. UPDATED 01/12/16*LJ *CN *TR
NHTSA ODI #10818376
Mileage unknown · Nov 9, 2015
EnginePower Train
WHEN YOUR AT A COMPLETE STOP VEHICLE GIVES A HARD JERK LIKE SOMEONE HAS REAR ENDED YOU. ALL OF THE IMPALA'S HAVE A FAILED TRANSMISSION PRESSURE CONTROL SOLENOID WHICH CAN CAUSE ACCIDENTS WHEN IT JERKS VERY HARD CAUSING SOMEONE TO RUN INTO THE BACK OF ANOTHER VEHICLE. NO CHECK ENGINE LIGHT OR ANYTHING WILL COME ON LETTING YOU KNO…
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WHEN YOUR AT A COMPLETE STOP VEHICLE GIVES A HARD JERK LIKE SOMEONE HAS REAR ENDED YOU. ALL OF THE IMPALA'S HAVE A FAILED TRANSMISSION PRESSURE CONTROL SOLENOID WHICH CAN CAUSE ACCIDENTS WHEN IT JERKS VERY HARD CAUSING SOMEONE TO RUN INTO THE BACK OF ANOTHER VEHICLE. NO CHECK ENGINE LIGHT OR ANYTHING WILL COME ON LETTING YOU KNOW THE PROBLEM. YEARS 2000 TO 2015 ALL HAVE THE SAME PROBLEM. NEEDS TO BE RECALLED BEFORE SOMEONE SERIOUSLY GETS INJURED.
NHTSA ODI #10789153
130,000 miles · Aug 11, 2015
Electronic Stability Control (esc)Power TrainVehicle Speed Control
WHILE AT A COMPLETE STOP, WHEN THE VEHICLE IS IN DRIVE, AS I ATTEMPT TO PUSH THE ACCELERATOR TO DRIVE THROUGH AN INTERSECTION, THE CAR WILL STALL FOR A SECOND, MAKE NOISE THAT SOUNDS LIKE A WHINE, AND THEN JUMP FORWARD LIKE IT'S HAVING A DIFFICULT TIME FINDING FIRST GEAR. THE VEHICLE DOES THIS EVERY SO OFTEN, BUT NOT ALL THE TIM…
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WHILE AT A COMPLETE STOP, WHEN THE VEHICLE IS IN DRIVE, AS I ATTEMPT TO PUSH THE ACCELERATOR TO DRIVE THROUGH AN INTERSECTION, THE CAR WILL STALL FOR A SECOND, MAKE NOISE THAT SOUNDS LIKE A WHINE, AND THEN JUMP FORWARD LIKE IT'S HAVING A DIFFICULT TIME FINDING FIRST GEAR. THE VEHICLE DOES THIS EVERY SO OFTEN, BUT NOT ALL THE TIME. I'VE TAKEN IT INTO CAR X, MY LOCAL CHEVROLET DEALERSHIP, AND ANOTHER LOCAL GOODYEAR TIRES DEALER, BUT NOBODY HAS ANY IDEA WHAT I'M TALKING ABOUT. THE VEHICLE HAS BEEN HOOKED UP TO A COMPUTER AND TECHNICIANS HAVE LOOKED AT IT, BUT JUST SCRATCH THEIR HEADS. THERE IS EVEN A FORUM ONLINE REGARDING THIS HAPPENING WITH OTHER CHEVY IMPALA OWNERS [XXX] AND OWNERS SEEM TO PUT LOTS OF MONEY INTO THE ISSUE BUT WITH NO RESOLVE. ** THE ISSUE SEEMS TO REMEDY ITSELF WHEN I TURN OFF THE TRACTION CONTROL. ** THERE HAVE BEEN A COUPLE OF CLOSE CALLS WHERE I'LL BE PULLING THROUGH A BUSY INTERSECTION AND THE CAR WILL STALL AND I'LL FEEL LIKE I'M ABOUT TO BE HIT BECAUSE THE CAR "DIES" FOR A SECOND. I FEEL THIS IS A REAL SAFETY CONCERN THAT NEEDS TO BE ADDRESSED. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *AN
NHTSA ODI #10747715
80,000 miles · May 13, 2015
Power Train
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE STALLED AND THE CHECK ENGINE WARNING LIGHT ILLUMINATED. 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 NOTIFIED OF…
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TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE STALLED AND THE CHECK ENGINE WARNING LIGHT ILLUMINATED. 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 NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.
NHTSA ODI #10716283
97,000 miles · May 11, 2015
Power Train
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE TRAVELING 35 MPH WITH THE ACCELERATOR PEDAL ENGAGED, THE ENGINE REVVED BUT THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS TOWED TO A DEALER AND IT WAS DETERMINED THAT TRANSMISSION NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 97,000.
NHTSA ODI #10715667
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 …
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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
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…
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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