Problems · by component

2008 Chevrolet Impala electrical system problems

221 owner complaints to NHTSA about the 2008 Chevrolet Impala cite electrical system, 27% of all 810 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
221
27% of all complaints
Crashes
6
Reported by owners
Fires
6
Reported by owners
Injuries
5
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“The engine electric brakes all shut down steering wheel locked up and my daughter smashed into telephone pole on August 31 2023. Airbags didn't deploy for front and side airbags were deflated no air.no warning lights prior that I'm aware of. My daughter was injured PCS and cervical sprain”
Owner complaint to NHTSAFiled Sep 5, 2023Electrical system, Air bags, Unknown or otherCrash reportedODI 11542674
“While driving at highway speeds the car will act up and the engine will shut off, I get the message on the odometer display that reads, Engine power is reduced, service throttle, starter disabled. This is not a good thing to have happen while driving.”
Owner complaint to NHTSAFiled Nov 25, 2022Electrical system, Fuel/propulsion systemODI 11494886
“Heating and air conditioning actuators and/or blen door getting stuck so the air will not switch from cold to hot or hot to cold without pulling the glove box out and manually turning them by hand. Heater will blow hot air and then randomly switch to cold air. When it's cold outside, I cannot defrost my windows cause it gets stuck on cold air which impairs visibility.”
Owner complaint to NHTSAFiled Jan 12, 2022Electrical systemODI 11447196
“WHILE WIFE WAS DRIVING AT NORMAL SPEED CAR WENT INTO LIMP MODE MANY TIMES OVER LAST FEW MONTHS CAUSING ACCELERATOR PEDAL SENSOR CODES.WE HAVE SINCE CHANGED THIS PEDAL SENSOR 6 TIMES AND SAME ISSUE AND CODES POP UP. WE ALSO CHANGED THROTTLE BODY W SENSOR AND CONNECTOR PIGTAIL.I THINK THERE IS CORROSION IN ECM AND ALL THESE ITEMS HAVE FAILED. THESE ITEMS SHOULD HAVE BEEN RECALLED AS MANUFACTURER DEFECTS IN MY OPINION.WE ARE STILL HAVING PROBLEMS SAME CODES AND IM NOT THE ONLY ONE!”
Owner complaint to NHTSAFiled Feb 9, 2021Electrical system, Unknown or other, EngineODI 11395348
“IN MOTION ON A CITY STREET TURNING LEFT , PEDAL STUCK BRAKES NOT WORKING AND HIT BY ON COMING CAR , FLIPPED IN AIR ABOUT A BLOCK , ROLLING OVER AGAIN AND AGAIN , NO AIR BAGS DEPLEATED, BROKEN RIBS, CONCUSSION, SKIN LACERATIONS , BRUISES,GLASS LOGGED IN PARTS OF BODY , FACE AND FEET”
Owner complaint to NHTSAFiled Jan 18, 2021Steering, Electrical system, Vehicle speed controlCrash reportedFire reportedODI 11388632
“WHEN FIRST PURCHASED I HAD TO CHANGE ACCELERATOR PEDAL. WHEN I TOOK IT TO THE SHOP I WAS TOLD THEY GET A LOT OF PEOPLE W IMPALAS SAME AS MY YEAR 2008 THAT NEEDED TO HAVE THE ACCELERATOR PEDAL CHANGED EVERY SO OFTEN BECAUSE THEY WOULD GO OUT AND IT WOULD CAUSE THE CHECK ENGINE LIGHT TO GO ON AND OFF BECAUSE THE VEHICLE WAS SENDING THE WRONG SIGNALS.I WOULD DRIVE ON THE HIGHWAY AND STREET IT WOULD CAUSE REDUCED ENGINE TO COME ON AND SLOW MY CAR DOWN ALMOST LEADING INTO ACCIDENTS BECAUSE I DID NOT KNOW IT WAS ABOUT TO HAPPEN. IT WOULD COME AND GO ON AS IT WANTED. THE ELECTRICAL PART OF THE CAR IS SOMETHING IN THE CAR CONTINUES TO DRAIN MY BATTERY. I'VE GOTTEN A NEW BATTERY AND IT STILL DRAINS CAUSING ME TO HAVE TO GET IT RECHARGED. THE SUSPENSION I WAS ALSO TOLD FOR THE YEAR OF MY CAR IS BAD. WHEN PURCHASED I FOUND OUT THAT AGAIN PEOPLE THAT PURCHASED THESE YEARS OF VEHICLES HAD PROBLEMS WITH THE CONTROL ARMS AND THAT I NOW HAVE TO TAKE IT TO GET FIXED BECAUSE ONE HIT TO A POT HOLE CAN CAUSE THE UNDER PART OF THE CAR TO BREAK AND CAUSE A BAD ACCIDENT. I DID NOT KNOW IMPALAS HAD THIS MANY PROBLEMS. I SEEN THE POLICE IMPALAS FOR 2008 WERE RECALLED FOR SUSPENSION,…”
Owner complaint to NHTSAFiled Jul 2, 2020Suspension, Electrical system, Vehicle speed controlODI 11337216

Showing 6 of 221 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Electrical system: ignition

Free remedy

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.

Electrical systemReported Jun 23, 2014NHTSA 14V355000
Data from NHTSA Recalls API · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.