WHEN THE ACCELERATOR PEDAL IS RELEASED, THE CAR DOES NOT SLOW DOWN. DEALER SAYS CAR IS OK. THIS HAPPENS AT ANY SPEED AND MAKES IT DIFFICULT TO SLOW DOWN OR STOP. THE CAR WILL RUN ALONG AT ABOUT 20 MILES PER HOUR FROM A STOPPED POSITION WITHOUT TOUCHING ACCELERATOR. VERY DIFFICULT TO DRIVE ON ICE OR SNOW.
2011 Chevrolet Impala
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Impala years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
410 reports with mileage · 95 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electronic Stability Control (esc). Review the 132 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 125 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 95 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
505 reportsDRIVING ALONG AND CAR JUST ACCELERATED AND COULD NOT GET IT TO STOP OR SLOW DOWN. TRACTION CONTROL LIGHT CAME ON, ENGINE REDUCE POWER, LOW ENGINE POWER, SERVICE STABILITY TRAK, CHECK ENGINE LIGHT. I WAS PUSHING DOWN ON THE BRAKE TRYING TO GET THE CAR TO STOP OR AT LEAST SLOW DOWN BUT THE CAR SEEMS AS IF IT WAS GETTING FASTING T…
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DRIVING ALONG AND CAR JUST ACCELERATED AND COULD NOT GET IT TO STOP OR SLOW DOWN. TRACTION CONTROL LIGHT CAME ON, ENGINE REDUCE POWER, LOW ENGINE POWER, SERVICE STABILITY TRAK, CHECK ENGINE LIGHT. I WAS PUSHING DOWN ON THE BRAKE TRYING TO GET THE CAR TO STOP OR AT LEAST SLOW DOWN BUT THE CAR SEEMS AS IF IT WAS GETTING FASTING THEN IT MADE A JERK AND I BUMPED MY HEAD AGAINST THE WINDOW, AND MY FOOT GOT STUCK UNDER THE PEDAL AND KNEE GOT JAMMED . MY MOM GOT HURT ALSO AND BEING JERKED BACK AND FORTH.
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT THE HEAT FAILED. IN ORDER FOR THE HEAT TO FUNCTION, THE VEHICLE HAD TO BE IN MOTION. THE FAILURE RECURRED NUMEROUS TIME. THE VEHICLE WAS TAKEN TO A DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE W…
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TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT THE HEAT FAILED. IN ORDER FOR THE HEAT TO FUNCTION, THE VEHICLE HAD TO BE IN MOTION. THE FAILURE RECURRED NUMEROUS TIME. THE VEHICLE WAS TAKEN TO A DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 65,000. THE VIN WAS NOT AVAILABLE.
CAR WAS GOING ABOUT 40MPH. REDUCED ENGINE POWER WARNING, LOSS OF TRACTION CONTROL, AND STABILTRAK TO BE SERVICED. GM WILL NOT COVER UNDER WARRANTY AND IS A COMMON PROBLEM. SOME CARS WILL AUTOMATICALLY JUST SHUT DOWN.
I HAVE A 2011 CHEVY IMPALA AND DURING AN INSPECTION FOUND OUT THAT THE CLUNK I STARTED HEARING 2 WEEKS AGO WAS DUE TO A FRONT ALUMINUM SUB-FRAME CONTROL ARM MOUNT THAT BROKE. THE CAR HAD A SAFETY RECALL ON IT (RECALL 12V377) FOR FRONT CONTROL ARMS, WHICH WERE REPLACED, BUT THE NEW CONTROL ARMS ARE DEFECTIVE ALSO, CAUSING THEM TO…
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I HAVE A 2011 CHEVY IMPALA AND DURING AN INSPECTION FOUND OUT THAT THE CLUNK I STARTED HEARING 2 WEEKS AGO WAS DUE TO A FRONT ALUMINUM SUB-FRAME CONTROL ARM MOUNT THAT BROKE. THE CAR HAD A SAFETY RECALL ON IT (RECALL 12V377) FOR FRONT CONTROL ARMS, WHICH WERE REPLACED, BUT THE NEW CONTROL ARMS ARE DEFECTIVE ALSO, CAUSING THEM TO BECOME MISALIGNED INSIDE THE SUB-FRAME CONTROL ARM MOUNTS, WHICH SUBSEQUENTLY RUBBED AND WORE THE ALUMINUM SUB-FRAME CONTROL ARM MOUNTS TO THE POINT WHERE IT BROKE. I DO HAVE PICTURES OF THIS. THE FRONT BUSHING IS A VERTICAL BUSHING DESIGN FROM GM THAT HAS BEEN NOTED FOR A VERY HIGH AND REPEATED FAILURE RATE, NOT JUST ON THE W-BODY CARS BUT ALSO ON MANY DELTA PLATFORM CARS SUCH AS CHEVY COBALT AND HHR, PONTIAC G5, SATURN ION. I CONTACTED CHEVY AND THEY REFUSE TO LISTEN TO IT, EVEN THO THIS CAR ONLY HAS 78K MILES ON IT, AND IS ONLY 4 YEARS 1 MONTH OLD, THEY DECLINED WARRANTY. IT IS VERY DANGEROUS AS THE ENTIRE WHEEL CONTROL ARM MOUNTS BROKE AWAY FROM THE REST OF THE FRAME. AND IT IS DUE TO THE SECOND SET OF DEFECTIVE CONTROLS ARMS IN JUST 78K MILES. ANY IMPALA OWNER SHOULD GO CHECK THIS IMMEDIATELY AS IT CAN BE A DEADLY DEFECT THAT GM IS DECLINING TO KNOW ABOUT. IT ALSO AFFECTS OTHER GM 2006 AND NEWER W-BODY CARS: PONTIAC GRAND PRIX, BUICK LACROSSE, CHEVY IMPALA AND MONTE CARLO. THE ISSUE IS, THIS TYPE OF BUSHING USED BY GM FOR MANY YEARS ON MANY MODELS IS KNOWN TO HAVE VERY HIGH FAILURE, AND WITH STEEL CONTROL ARM MOUNTS, IT DIDN'T DAMAGE THE MOUNTS/SUB-FRAME UNLESS LEFT FOR A VERY LONG TIME, BUT NOW WITH THE ALUMINUM SUB-FRAME, WHEN THE BUSHING GOES BAD, THE OUTER STEEL PART OF THE BUSHING WEARS AWAY INTO THE SOFT ALUMINUM CONTROL ARM MOUNT ON THE SUB-FRAME VERY QUICKLY, AND MAY GO UNNOTICED BY THE DRIVER UNTIL IT BREAKS, WHICH CAN CAUSE LOSS OF CONTROL OF THE VEHICLE, WHICH MAY LEAD TO A CRASH, CAUSING BODILY HARM OR EVEN A FATALITY.
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.
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.
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING 70 MPH, THE TRACTION CONTROL LIGHT ILLUMINATED AS THE VEHICLE STALLED. AS A RESULT, THE VEHICLE CRASHED AND THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE DRIVER AND PASSENGER SUSTAINED MINOR INJURIES TO THEIR HANDS AND LEGS, BUT DID RECEIVE MEDICAL ATTEN…
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TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING 70 MPH, THE TRACTION CONTROL LIGHT ILLUMINATED AS THE VEHICLE STALLED. AS A RESULT, THE VEHICLE CRASHED AND THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE DRIVER AND PASSENGER SUSTAINED MINOR INJURIES TO THEIR HANDS AND LEGS, BUT DID RECEIVE MEDICAL ATTENTION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN STATED THAT THE IMPACT WAS NOT HARD ENOUGH FOR THE AIR BAGS TO DEPLOY. THE FAILURE MILEAGE WAS 56,000. UPDATED 6/8/15*CN UPDATED 11/6/15 *JS
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, "TRACTION CONTROL NEED SERVICE" AND "REDUCE ENGINE POWER" MESSAGES APPEARED BEFORE THE SPEED SUDDENLY REDUCED. AFTER RESTARTING THE ENGINE AND CONTINUING TO DRIVE, THE ERROR MESSAGES CONTINUED TO DISPLAY BEFORE THE VEHICLE S…
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TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, "TRACTION CONTROL NEED SERVICE" AND "REDUCE ENGINE POWER" MESSAGES APPEARED BEFORE THE SPEED SUDDENLY REDUCED. AFTER RESTARTING THE ENGINE AND CONTINUING TO DRIVE, THE ERROR MESSAGES CONTINUED TO DISPLAY BEFORE THE VEHICLE SHUT OFF. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE ACCELERATOR PEDAL WAS FAULTY AND NEEDED TO BE REPLACED. THE PEDAL WAS REPLACED AND THE FAILURE WAS REMEDIED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 40,590. UPDATED 5/15/15*CN THE CONSUMER STATED JUST BEFORE THE ENGINE SHUT DOWN THE MESSAGE "SHUTTING POWER OFF" WAS DISPLAYED. THE VEHICLE COASTED TO A STOP. THE KEY WAS STILL IN THE ON POSITION. UPDATED 11/16/2015*JS
TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING AT 40 MPH, THE INSTRUMENT PANEL FLICKERED AND THE STEERING WHEEL SEIZED. AS A RESULT, THE CONTACT CRASHED INTO THE REAR OF ANOTHER VEHICLE AND THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED NOSE AND FACE INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WA…
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TL* THE CONTACT OWNS A 2011 CHEVROLET IMPALA. WHILE DRIVING AT 40 MPH, THE INSTRUMENT PANEL FLICKERED AND THE STEERING WHEEL SEIZED. AS A RESULT, THE CONTACT CRASHED INTO THE REAR OF ANOTHER VEHICLE AND THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED NOSE AND FACE INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE HOOD AND SIDING NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM). THE FAILURE MILEAGE WAS 5,000.
Official recalls
214V355000 · Electrical System:ignition
Jun 23, 2014
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Consequence & remedy
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury. Additionally, a key knocked out of the run position will cause loss of engine power, power steering, and power braking, increasing the risk of a vehicle crash.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 23, 2014. Owners may contact General Motors customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac), and 1-800-222-1020 (Chevrolet). GM's number for this recall is 14299.
12V377000 · Suspension:front:control Arm:lower Arm
Aug 3, 2012
General Motors (GM) is recalling certain model year 2008-2012 Chevrolet Impala police vehicles because the front lower control arms may fracture. This safety recall does not include non-police Chevrolet Impala vehicles.
Consequence & remedy
Consequence: A broken control arm can result in the loss of control of the vehicle, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace both front lower control arms, free of charge. The safety recall began on August 21, 2012. Owners may contact the Chevrolet owner center at 1-866-694-6546.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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