3,503 of the 15,232 complaints filed about the Chevrolet Impala are about the electrical system — 23% of everything owners reported. The worst model year for it is 2004.
3,503
Complaints
23%
Share of all complaints
86
Crashes
113
Fires
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2015 Chevrolet Impala. The contact stated that there was a mileage discrepancy after the purchase. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 182,412. It was later discovered upon checking the Title that the mileage was 186,199.
NHTSA complaint #11755425 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I have always kept my Impala in my garage until recently I started keeping my grandson a few days a week. When I am at that home my car is parked in a driveway open to the elements. About a month after starting I notice that my car started having what I would describe as an electronic issue. The seat belt alarm would go off without me ever touching my seat belt. I have also had to replace my tail lights in my vehicle twice since this started. Then when I packed for a trip yesterday I noticed an awful smell in my trunk. I could not find the source, so I took everything out of my trunk and opened the spare tire compartment which was completely filled with water! I found a Product Bulletin on this. Chevrolet #14047. But it is NOT A RECALL. WHY IS THAT? IT IS CLEARLY AN ERROR ON THEIR PART! CAN YOU EXPLAIN PLEASE?
NHTSA complaint #11740180 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I brought my vehicle into Chevrolet due to my vehicle locking down and thinking the vehicle is being stolen. They told me that the side module malfunctions due to rain and weather conditions. He then says the part is on back order for possibly 12 months or greater! I drive for my job and blinkers and everything safety shuts down to make It unsafe to sell or be driven. I am at a loss to know how to proceed. I will be contacting the minnesota Attorney General as well. Help please
NHTSA complaint #11730692 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I believe the passenger seat occupant sensing and airbag issues from recall 16V507 have not been fixed. I am still having issues related to it, even though I had it fixed.
NHTSA complaint #11727490 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
The contact owns a 2017 Chevrolet Impala. The contact stated that while driving at an undisclosed speed on the interstate, the hazard light was activated and the trunk spontaneously opened. The contact was unable to securely latch the trunk and used a net to secure it. While continuing the drive, the vehicle lost motive power and was unable to restart. The vehicle was towed to a local dealer, where a diagnostic test determined there was a failure with the body control module(BCM), and a malfunction with the trunk latch assembly. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 66,890.
NHTSA complaint #11722274 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
The contact owns a 2010 Chevrolet Impala. The contact stated that when the vehicle was started, the check air bag and service air bag warning lights illuminated. The vehicle was not taken to a local dealer or independent mechanic to be diagnosed or repaired. The contact researched online and related the failure to NHTSA Campaign Number: 16V507000 (Air Bags, Electrical System); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 58,000.
NHTSA complaint #11716297 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Fuel system or backfire is what I believe happened to it. The vehicle is available for inspection upon request. My safety was severely put at risk because the car exploded and caught fire while I was inside the car and fire came through the dash and air conditioner slots, anything could of happened whether shrapnel or burn. this also put others at risk if my spouse was in the car with me or the apartment complex I live in could have caught fire and endangered multiple people. No the issue has not been seen or confirmed by a dealer or service center. Yes the vehicle has been inspected by state fire marshal. No there was no warning lights or problems at all. We drove the car the night before, everything was normal and nothing was showing on the dash and the next day I jumped in, put my seat belt on and started the car to make sure it was running good and it exploded and caught flames.
NHTSA complaint #11708557 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Cars acceleration causes me to be unable to pick up speed it decelerates up hills small or latg ramps cats constantly fly pass to avoid a multi car pile up it’s very dangerous!
NHTSA complaint #11702052 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I have a 2014 Impala limited I started having problems within 6 months after I bought the vehicle from Bergstrom Chevrolet in Wisconsin it was involving the ABS anti-lock stability track and traction control and the braking and steering we're all feeling and locking up while I was driving it presented and problems and endangering my life and the life of any passengers in the vehicle the brakes will lock up and there was no warning before I locked up no lights came on and it would pull to the left or pull to the right depending on which ABS was locking up and it was fixed one time at the dealership then it was fixed again at the dealership later maybe about another 3 to 6 months after and went up for the same thing again and the parts were replaced now I again have had nothing but problems with the braking system. Also the valve that controls the pressure in the fuel tank malfunctioned which caused the car to run irrraticaly it would start hard,stop running at all stops rough ideling and unable to pump gas into the car without the gas pump stopping continuously making the time that it would take to fill the gas tank 3 to 4 times longer than it did that was fixed and it is malfunctioning again. I'm on my fourth time of having my car anti-lock brake system failing on my car multiple systems including the electrical system failing. The dash lights would go off on. The exterior lights going off and on. The car has been off of the streets and unable to be driven many times. I have taken my car in to the Dealership from where I purchased it from. By the third time my car warranty had expired. Then everything was still not repaired all the systems were not ever working correctly. And now the repairs were needed to be paid in full by myself. The cost to me had just begun when it should have been resolved. In excess of $6,000 was what it would cost me the third time I had the Impala in for everything and now it's gone out again and I'm having to get this repaired.
NHTSA complaint #11699579 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I previously owned a 2011 Buick Regal and now have a 2014 Chevy Impala. Both vehicles have had a Stabilitrack warning come up. Both vehicles experienced the same issue. The car seemed to jerk, lag in speed, cannot accelerate over 40mph. The Regal was diagnosed with an electrical/wiring issue. The Impala was diagnosed with a failed Transmission Control Module. We now have a 2016 Impala and the same issue and warning lights have appeared. That’s 3 vehicles we’ve owned from GMC with the exact same issue. This can’t be a coincidence and should be looked into. There are hundreds, if not thousands, of more consumers on forums experiencing the exact same issue. This should be recalled! Imagine the possibilities of danger this can cause when on the interstate and can’t accelerate over 40mph.
NHTSA complaint #11695515 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Smelled an odor of burning wires when using rear defroster. Defroster then stopped working. After further troubleshooting I observed the wire pigtail under the front passenger door was charred and burned. The pin inside the harness that was burned was the rear defroster. After further research I found this is very common for the Chevy impala. However no recall existed. I feel it is a fire risk due to the fact that the wires over heated enough to melt and char the plastic surrounding the electrical pin within the harness. Pictures was taken of the damage.
NHTSA complaint #11690540 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I have about 08/1825 had the throttle body replaced on my vehicle which assisted with the problem temporarily. Then the problem started again 09/20/25 the car act like it’s stalling while driving and can’t see what hear the vehicle is in. The car is not getting any signal to the engine as I have been advised the TCM is faulty. There was a code of U0101.
NHTSA complaint #11689100 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Seatbelt warning and blinkers have no sound warnings and driver side blind spot warning are not working
NHTSA complaint #11685539 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
The contact owns a 2004 Chevrolet Impala. The contact stated that while driving approximately 40 MPH, the vehicle suddenly decelerated to approximately 20 MPH, and the instrument panel went black. The contact stated that the vehicle lost power steering functionality, and then lost motive power and stalled. The contact was assisted by persons nearby to push the vehicle to the side of the road. The vehicle was towed to a mechanic, who was unable to determine the cause of the failure. The vehicle was towed to the dealer, but was not diagnosed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 71,000.
NHTSA complaint #11685324 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
The contact owns a 2010 Chevrolet Impala. The contact stated that while the vehicle was turned off and unattended in a parking lot. After about ten minutes, the contact was unlocking the vehicle and noticed fire inside the vehicle near the front of the vehicle near the radio and heater. The contact used a water bottle from the back seat to attempt to extinguish the fire. The fire was extinguished by a bystander using a fire extinguisher. There were no warning lights prior to the failure. There were no reported injuries. There was no police report filed, airbag deployment, or crash involved. The vehicle was towed to her residence. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, who opened a case. The failure mileage was approximately 188,000.
NHTSA complaint #11667688 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Very loud abnormal ticking sound coming from the vehicle, failed actuators. Resulting in hvac loss. Arecall issued in 2014 for stabilitrak /abs for bad grounds on 2014 Chevy Impalas. HOWEVER 2.5 and 3.6 L engines were not included, BUT NEED TO BE!!! the car will drive rough and eventually just cut off in the middle of traffic highway or residential. This is what it did on me, putting me in a very dangerous position with my 5 year old in the car. This issue is effecting thousands of the same vehicles and GM's failure to address this issue is leaving the owners of the affected vehicles driving unsafe vehicles. GM / Chevy needs to issue a recall on ALLL the 2014 Impalas. (which they will not confirm or deny). While I was driving 60mph on an interstate my car notification screen displayed "service stabilitrak"/ "engine power reduced"... then my car acceleration seemed to have died and car slowed all the way down to around 20 mph with the gas pedal diwn to the floor... a big semi truck was behind me and had to break and swerve around me while blowing his horn...I was nearly killed.
NHTSA complaint #11663770 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Power windows fail at times Blinkers fail at times Front hub assembly damage Front calipers are damaged and affect steering These are available for inspection. There are huge safety risks with all of these compromised issues. Last inspection is unknown. No known warning lamps present.
NHTSA complaint #11662881 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2017 Chevrolet Impala. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 117,892 and at the time of registration, it was discovered that the mileage was registered as 64,484.
NHTSA complaint #11659982 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
I received an alert to service the sideview sensors. Also, the sideview alert keeps flashing in the side mirrors even when there's no vehicle present.
NHTSA complaint #11655597 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
Side Blind Zone Alert (SZBA) system continues to be an issue with this vehicle. Sensing module(s) on inner left or right side of bumper cover fail due to water intrusion. When sensing module fails, "Service Side Detection System" message will appear on driver information center on instrument cluster. General Motors has previously issued a special coverage "N172097060", which is available on NHTSA website. As indicated in the special coverage document, if the issue is ignored, "the condition could result in the corruption of LS GMLAN that may result in the loss of some driver interface functions such as cluster, infotainment, displays, chime, and passenger presence detection (passenger airbag could be suppressed). Within approximately 30 days of the "Service Side Detection System" message, while driving, instrument cluster speedometer and tachometer went dead, and airbag warning system notification, anti-theft system, tire pressure monitoring system all illuminated. In addition to no speedometer reading, vehicle ignition/security interlock was causing vehicle to run rough. Vehicle would not immediately restart after shutting vehicle off. This is the 4th time a SBZA sensing module has failed on this vehicle. First failure was replaced under factory warranty, second failure was replaced under special coverage N172097060, third failure was replaced out-of-pocket. Contacted General Motors/Chevrolet, and they are not interested in providing continued coverage of the issue, which is a known issue, and likely a design defect, as the design was changed for later model years.
NHTSA complaint #11655024 — an unverified report by a vehicle owner.