GMC Complaints

Headlights have a frequent flickering issue. They are constantly flickering on and off. Truck only has 600 miles on it.

Headlights consistently flicker. I have had other drivers stop me and warn me. Happens every 1-2 minutes on both sides. GM dragging their feet with a repair. I am hearing multiple customers with the same issue. Please put pressure on GM to correct this issue now!

When it rains, there are puddles of water on the passenger side! Cannot figure out how the water is getting in..my concern is of a potential electrical short/ fire / failure of a system that doesn’t allow me to operate the vehicle safely! Possibly, affecting other functions of the vehicle during operation!

On May 10, 2024 while driving my 2014 GMC Terrain driving at about 65mph my car cut off while driving to the point that the car started slowing down which had med confused as to what was going on but thankfully I was able to safely move over to the side of the of the highway in order to be in safer position to start the car back up. There was no warrant signs that the car had cut off but I had the air conditioning on do it stop blowing. At this point I knew the car was not safe to drive but I had to get off the highway. So I was about 5 miles from my exit which I was able to get to the exit without the car cutting off again on the highway but the car cut off once again on the exit as my speed was decelerating. I took my car to Meineke Car Care a few days later and was told that my car needed to have the solenoid replaced and the timing chain kit which was what the diagnostic was showing. Once they were able to fully inspect the car I was told that the timing chain kit was broken and I had medal in my oil which was suggested that I replace my engine. This put me at risk of being in an accident that could have injured myself or someone. There were no warning indications. My check engine light was not on. I had to pay to have the engine replaced which before I had it replaced I took my car to another shop just to get a second opinion in which I had the engine replaced.

Headlights are flickering intermittently, causing oncoming drivers to think they are being bright lighted. Which causes them to bright light me. Also, headlight flickering causes trailed vehicle drivers to think I am signaling them to stop. Both situations are hazardous, in my opinion.

Approximately every minute while driving with the headlights on, they will turn off/flicker for a split-second. This makes it seem like I’m flashing my lights at other vehicles, and also makes the lights turn off while driving for a split second which is distracting. This has happened since the vehicle was purchased new and it happens any time the headlights are turned on.

The contact owns a 2020 GMC Sierra 2500. The contact stated that while driving 65 MPH, the message "Check Service Brakes Now" was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed with electric parking brake malfunction. The mechanic informed the contact that the electric parking brake had been engaged unintendedly, causing the rear driver's side brake calipers to seize. The vehicle was repaired; however, the failure recurred on the rear passenger's side while driving. The vehicle was taken to the dealer, where it was diagnosed with electric parking brake circuitry failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 62,000.

The contact owns a 2023 GMC Yukon. The contact stated that while the vehicle was parked, the automatic door locks inadvertently engaged when the contact was exiting the vehicle. The contact stated that the vehicle was running, and the key fob was in the ignition. There were no warning lights illuminated. The contact was able to unlock the vehicle with the spare key fob. The dealer was not contacted, and the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,965.

Electric power steering stops working and the power steering assist warning light is illuminated. Once the truck is restarted the problem goes away but will come back at some point while driving. This has happened multiple times at multiple speeds, the first time it happened I was going over 70 MPH. With no power steering it is nearly impossible to turn the steering wheel since I only have one hand available to use on the steering wheel. Had I not had a passenger with me to help turn the wheel I would have crashed. I took the truck to the dealer and they told me it was the same problem that the 2015's had had on a recall but my truck was a early 2016 so I was not part of the recall. The dealer was happy to fix it at a cost of $2916.27 My truck only has 27135 miles, but is to old for warranty coverage.

The contact owns a 2019 GMC Acadia. The contact stated that while shifting to park and turning off the vehicle, the message “Shift to Park” was displayed. The parking brake failed to engage as needed. The contact continued to depress the brake pedal, and after ten minutes, the vehicle shut off. The vehicle was taken to the local dealer, where it was diagnosed, and it was recommended that the shifter assembly be replaced. The vehicle was not repaired. The manufacturer was contacted and filed a case. The failure mileage was approximately 59,000.