NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
92 reportsClear category filter111,690 miles · Mar 20, 2014
EnginePower TrainVehicle Speed ControlInjury
WHILE ACCELERATING THE CAR LOST THE ABILITY TO CONTINUE ACCELERATING ALL AT ONCE WHICH CAUSED A JERKING MOTION OF THE CAR CAUSING ME(THE DRIVER) TO BE THROWN FORWARD HITTING MY HEAD ON THE STEERING WHEEL. IT ALL HAPPENED VERY FAST AND THE REDUCED ENGINE POWER AND TRACTION CONTROL MESSAGE APPEARED ON THE DASH BOARD AND IS STILL …
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WHILE ACCELERATING THE CAR LOST THE ABILITY TO CONTINUE ACCELERATING ALL AT ONCE WHICH CAUSED A JERKING MOTION OF THE CAR CAUSING ME(THE DRIVER) TO BE THROWN FORWARD HITTING MY HEAD ON THE STEERING WHEEL. IT ALL HAPPENED VERY FAST AND THE REDUCED ENGINE POWER AND TRACTION CONTROL MESSAGE APPEARED ON THE DASH BOARD AND IS STILL ON THE DASH BOARD. AS I SAID IT ALL HAPPENED VERY FAST BUT I WAS ABLE TO BRACE MYSELF SLIGHTLY WHICH IS THE ONLY REASON I WAS NOT SERIOUSLY INJURED. THIS ISSUE WHICH NOW AFTER SPEAKING TO MY CAR MECHANIC AND ME SEEING MANY OTHER PEOPLE HAVING THE SAME ISSUE AFTER DOING SOME RESEARCH ONLINE IS A DEATH SENTENCE TO SOMEONE. SOMEONE IS GOING TO DIE FROM THE CAR LOSING THE ABILITY TO ACCELERATE ALL AT ONCE ALONG WITH A JERKING MOTION THAT MAKES YOU WANT TO HAVE A FOOT ON THE GAS AND A FOOT ON THE BRAKE TO BE ABLE TO STOP SHOULD THE CAR TAKE OFF ON IT OWN. *TR
NHTSA ODI #10573779
60,000 miles · Mar 13, 2014
Electrical SystemSteeringVehicle Speed Control
IGNITION FAILURE AND ASSOCIATED POWER LOSS OCCURRED WHILE DRIVING ON A CROWDED EXPRESSWAY AFTER HITTING A BUMP IN THE LEFT LANE. A VERY HEAVY KEY CHAIN WAS IN THE IGNITION AT THE TIME. WITH NO SIGNALS, FLASHERS, OR POWER STEERING, USING ONLY RAPIDLY FADING INERTIA FOR POWER, I HAD TO MAKE MY WAY OVER TO THE RIGHT LANE AND ON T…
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IGNITION FAILURE AND ASSOCIATED POWER LOSS OCCURRED WHILE DRIVING ON A CROWDED EXPRESSWAY AFTER HITTING A BUMP IN THE LEFT LANE. A VERY HEAVY KEY CHAIN WAS IN THE IGNITION AT THE TIME. WITH NO SIGNALS, FLASHERS, OR POWER STEERING, USING ONLY RAPIDLY FADING INERTIA FOR POWER, I HAD TO MAKE MY WAY OVER TO THE RIGHT LANE AND ON TO THE SHOULDER THROUGH THICK, UNYIELDING 70 MPH TRAFFIC. TERRIFYING; COLLISION NARROWLY MISSED.
NHTSA ODI #10569004
98,000 miles · Dec 24, 2013
Electronic Stability Control (esc)EngineVehicle Speed Control
I HAVE A 2008 CHEVROLET IMPALA LTZ. I HAVE HAD SEVERAL OCCASIONS NOW WHEN MY CAR HAS STARTED FLASHING "SERVICE STABILITRAK" "ENGINE POWER REDUCED" "SERVICE AIRBAGS" AND THEN ALL THE CORRESPONDING LIGHTS COME ON. ONE OF THE TIMES THE VEHICLE FLASHED ALL OF THOSE WARNINGS, THE LIGHTS CAME ON AND THE CAR DIED, WHILE I WAS DRIVING.…
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I HAVE A 2008 CHEVROLET IMPALA LTZ. I HAVE HAD SEVERAL OCCASIONS NOW WHEN MY CAR HAS STARTED FLASHING "SERVICE STABILITRAK" "ENGINE POWER REDUCED" "SERVICE AIRBAGS" AND THEN ALL THE CORRESPONDING LIGHTS COME ON. ONE OF THE TIMES THE VEHICLE FLASHED ALL OF THOSE WARNINGS, THE LIGHTS CAME ON AND THE CAR DIED, WHILE I WAS DRIVING. IT LOST ALL POWER AND IT TOOK EVERYTHING I HAD TO STEER THE VEHICLE OFF THE ROAD. I HAD MY [XXX] YEAR OLD WITH ME THAT TIME AND WAS SCARED I WAS NOT GOING TO BE ABLE TO GET US TO A SAFE SPOT TO SIT AND WAIT FOR HELP. THE MOST RECENT INCIDENT HAPPENED LAST EVENING ON MY WAY HOME FROM WORK. I WAS DRIVING ON THE FREEWAY GOING ABOUT 75MPH, THE WARNINGS FLASHED AND THEN MY CAR LOST POWER AND FELT AS THOUGH IT WAS NOT HANDLING THE ROAD AS WELL AS IT SHOULD. I LIVE IN MN AND WE ARE IN THE MIDDLE OF WINTER NOW. I NEED MY CAR TO BE SAFE AND I RELY ON THIS CAR TO GET MY SON AND I TO WHERE WE NEED TO GO SAFELY! THIS IS THE ONLY VEHICLE I HAVE AND CANNOT AFFORD FOR SOMETHING TO HAPPEN TO IT. I HAVE BEEN READING SEVERAL FORUMS ABOUT OTHERS THAT THIS IS HAPPENING TO AND CAN'T HELP BUT FEEL THERE HAS TO BE SOMETHING MORE TO THE SITUATION. I WOULD FEEL HORRIBLE IF SOMETHING EVER HAPPENED TO MY FAMILY OR ANYONE ELSE BECAUSE OF MY FAULTY VEHICLE!! THIS NEEDS TO BE FIGURED OUT AND TAKEN CARE OF. *TR *DL 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).
NHTSA ODI #10557171
102,348 miles · Dec 17, 2013
Vehicle Speed Control
TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE TRAVELING 65 MPH, THE VEHICLE SUDDENLY LOST ACCELERATION POWER AS THE TRACTION CONTROL WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED…
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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE TRAVELING 65 MPH, THE VEHICLE SUDDENLY LOST ACCELERATION POWER AS THE TRACTION CONTROL WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED ABOUT THE FAILURE. THE FAILURE MILEAGE WAS 102,348. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10556411
108,000 miles · Dec 9, 2013
EnginePower TrainVehicle Speed Control
IN JUNE 2012 I HAD THIS PROBLEM ERROR MESSAGE READ: "ENGINE POWER REDUCED " AS I WAS DRIVING 55 MPH ON HIGHWAY MPH FELL BELOW TO 40 I HAD TO GET OFF HIGHWAY. I HAD THIS PROBLEM FIXED SO I THOUGHT IT COST ME ABOUT 360 DOLLARS. SAME EXACT RECURRING PROBLEM SAME ERROR MESSAGE TODAY 12/09/13. THIS IS RIDICULOUS GM HAS TO KNOW THI…
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IN JUNE 2012 I HAD THIS PROBLEM ERROR MESSAGE READ: "ENGINE POWER REDUCED " AS I WAS DRIVING 55 MPH ON HIGHWAY MPH FELL BELOW TO 40 I HAD TO GET OFF HIGHWAY. I HAD THIS PROBLEM FIXED SO I THOUGHT IT COST ME ABOUT 360 DOLLARS. SAME EXACT RECURRING PROBLEM SAME ERROR MESSAGE TODAY 12/09/13. THIS IS RIDICULOUS GM HAS TO KNOW THIS IS NOT SAFE. DEALERSHIP WILL NOT REPAIR AGAIN AT THEIR OWN EXPENSE. TOO MUCH MONEY FOR ME TO CONTINUE PAYING OVER N OVER AGAIN. THEY NEED TO RECALL THIS CAR IT'S OUTRAGEOUS! CAN SOMEONE PLEASE HELP US?! *TR
NHTSA ODI #10555375
Mileage unknown · Aug 15, 2013
Vehicle Speed Control
MY CHECK ENGINE LIGHT COMES ON, I TOOK IT TO AUTO ZONE TO DIAGNOSE, IT'S MY ACCELERATED PEDAL POSITION, I JUST HAD THIS REPLACED MAYBE 2 YEARS AGO BECAUSE IT DID THE SAME THING, NOW THIS I DON'T THINK SHOULD BE A COMMON THING BUT IT IS, AND AS DANGEROUS AS THIS IS I THINK IT'S MORE OF A DEFECT ON GM'S SIDE. THERE NEEDS TO BE SOM…
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MY CHECK ENGINE LIGHT COMES ON, I TOOK IT TO AUTO ZONE TO DIAGNOSE, IT'S MY ACCELERATED PEDAL POSITION, I JUST HAD THIS REPLACED MAYBE 2 YEARS AGO BECAUSE IT DID THE SAME THING, NOW THIS I DON'T THINK SHOULD BE A COMMON THING BUT IT IS, AND AS DANGEROUS AS THIS IS I THINK IT'S MORE OF A DEFECT ON GM'S SIDE. THERE NEEDS TO BE SOME TYPE OF RECALL OR REPLACEMENT FOR FREE. *TR
NHTSA ODI #10535456
40,000 miles · Aug 9, 2013
Vehicle Speed Control
TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 75 MPH, THERE WAS A LOSS OF ENGINE POWER WITH THE ILLUMINATION OF THE WARNING INDICATOR. THE VEHICLE WAS COASTED TO THE SIDE OF THE ROAD WHERE THE ENGINE WAS SHUT OFF. UPON RESTARTING, THE VEHICLE RESUMED WITHOUT THE ILLUMINATION OF…
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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 75 MPH, THERE WAS A LOSS OF ENGINE POWER WITH THE ILLUMINATION OF THE WARNING INDICATOR. THE VEHICLE WAS COASTED TO THE SIDE OF THE ROAD WHERE THE ENGINE WAS SHUT OFF. UPON RESTARTING, THE VEHICLE RESUMED WITHOUT THE ILLUMINATION OF THE WARNING INDICATOR. THE FAILURE RECURRED INTERMITTENTLY WHENEVER DRIVING UPHILL. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE ACCELERATOR PEDAL POSITION SENSOR WAS REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.
NHTSA ODI #10534492
139,423 miles · Jul 31, 2013
EngineVehicle Speed Control
I WAS JUST DRIVING AND THE CHECK ENGINE LIGHT POPPED ON. IN THE MESSAGE BOX IT SAID ENGINE POWER REDUCED, AND THE TRACTION CONTROL LIGHT ALSO CAME ON. I HAVE NO IDEA WHAT'S GOING ON. I COULDN'T PICK UP SPEED, WHEN I TRIED TO IT WOULD JERK. I'VE NEVER HAD ANY PROBLEMS OUT OF MY CAR UNTIL NOW. *TR
NHTSA ODI #10532943
55,000 miles · Jul 15, 2013
Electronic Stability Control (esc)EngineVehicle Speed Control
A FEW MONTHS AGO, WHILE DRIVING MY VEHICLE THE SERVICE STABILITRAK WARNING CAME ON AND ENGINE POWER WAS REDUCED CAUSING A SAFETY HAZARD ON A BUSY ROAD. FOLLOWING INSTRUCTIONS FROM GM, MY MECHANIC CLEANED CONNECTIONS ON THE PEDAL RELAY. THE SAME PROBLEM OCCURRED THIS PAST SATURDAY WHILE DRIVING ON THE HIGHWAY, NEARLY CAUSING A CO…
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A FEW MONTHS AGO, WHILE DRIVING MY VEHICLE THE SERVICE STABILITRAK WARNING CAME ON AND ENGINE POWER WAS REDUCED CAUSING A SAFETY HAZARD ON A BUSY ROAD. FOLLOWING INSTRUCTIONS FROM GM, MY MECHANIC CLEANED CONNECTIONS ON THE PEDAL RELAY. THE SAME PROBLEM OCCURRED THIS PAST SATURDAY WHILE DRIVING ON THE HIGHWAY, NEARLY CAUSING A COLLISION. I HAVE BEEN TOLD THE REPAIRS TO FIX THIS ISSUE WILL RUN CLOSE TO $1,000. I HAVE ALSO READ MANY FORUMS ON THE INTERNET INDICATING THIS IS A CONSISTENT PROBLEM WITH IMPALA'S. IT IS MY BELIEF THAT THIS SHOULD BE ADDRESSED WITH A SAFETY RECALL. *TR
NHTSA ODI #10524817
70,000 miles · Jun 25, 2013
Electronic Stability Control (esc)Vehicle Speed Control
TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE DECELERATED INDEPENDENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS. THE TECHNICIAN STATED THAT THE ACCELERATOR PEDAL WOULD HAVE TO BE REPLACED. AFTER THE REPAIR WAS PERFORMED, THE TRACTION CONTROL AND P…
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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE DECELERATED INDEPENDENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS. THE TECHNICIAN STATED THAT THE ACCELERATOR PEDAL WOULD HAVE TO BE REPLACED. AFTER THE REPAIR WAS PERFORMED, THE TRACTION CONTROL AND POWER REDUCTION WARNING LIGHTS ILLUMINATED AS THE FAILURE CONTINUED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 70,000. *TR
NHTSA ODI #10521702