GMC Complaints

On February 10, 2025 the vehicle, a 2018 GMC Sierra, caught on fire while parked in the driveway of my home. The vehicle had last been driven earlier in the day with a return to home at approximately 12:45pm. At approximately 7pm I heard a loud pop outside of my home and saw orange light coming through the front windows. Upon going outside, I found the rear of the vehicle engulfed in flames. The fire was coming out around the remains of the license plate, up and around the rear bumper on the left side, and progressing up the tailgate and window hatch on the bed cap. The fire progressed forward over the next few minutes as the fiberglass cap burned. Eventually the fire penetrated the front window of the cap and rear window of the cab and began burning the interior of the cab. About the time the fire department arrived the fuel tank ruptured and began spilling gasoline onto the ground beneath the vehicle. The fuel tank was approximately 7/8 full. The fire department eventually extinguished the fire, but the vehicle was a total loss. My wife and I had been in close vicinity of the vehicle during the afternoon hours and had noticed nothing unusual. There had been no unusual issues with the vehicle during the prior drive, which had been a 5 minute drive to/from a local home supply store. There was collateral damage to the front of my house as a result of the heat from the fire, as well as damage to the driveway. If the vehicle had been parked in the garage it is resonable to assume that the house would have been destroyed.

Engine blew up on interstate and left the vehicle in mobilized with only 60,000 miles and all regular maintenance was completed just catastrophically shut off and would not start in the middle of the interstate

Our Yukon Denali at around 34k miles lost power while in motion, it automatically put it in neutral and said try to restart. Rolled to a stop in a turn lane and when we tried to start ignition…nothing happened. On star was called and ran diagnostic, showing no issue. Towed vehicle to dealership and the engine seized up. 4 piston rods had broke and the engine needed to be rebuilt.

Headlight vent failed. Hid control board filled up with moisture. Headlight is flashing like emergency vehicle if it turns on at all.

Valve Body failure. Truck rear wheels lockup during failure as transmission was unable to get past 6 gear, sending truck into limp mode at highway speeds. Codes P0700 & P0747, no issues before failure. Dealership has replaced the Valve Body, but the part number model MQC part# 24065353 has not been redesigned and feel this will be a continuous issues to saftey not knowing when it will fail again.

The contact owns a 2024 GMC Sierra 1500. The contact stated while driving 74 MPH, the vehicle inadvertently lost motive power, after which the vehicle was unable to accelerate above 25 MPH. The contact was able to pull over to the shoulder of the roadway and turned off the vehicle. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the shift solenoid valve and that the serial data gateway module needed to be reprogrammed. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 24,000.

My 2012 GMC Sierra falls under recall number 14V827000 Ignition lock activator by year, make and model, but not by the VIN number. I called the GMC 800 number and they indicated that the NHTSA issues the recalls not the manufacturer. I then called the NHTSA and they indicated that the manufacturer issues the recalls. I just need to have VIN number [XXX] added to recall number 14V827000. Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2023 GMC Canyon. The contact stated that while at a car wash, there was an abnormal sound coming from the roof. The contact inspected the vehicle and noticed that there was a dent in the roof panel. The vehicle was taken to a dealer where it was diagnosed and repaired under Customer Service Program: 23-NA-209. After the repair, the vehicle was taken to the car wash and the same failure occurred. The vehicle was taken back to the same dealer where it was diagnosed a second time and the contact was informed that the repair could not be performed because the part was not available, and to report the failure to the NHTSA Hotline. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 1,800.

The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving 65 MPH, the check engine and the traction control warning lights illuminated. The contact stated that a dealer was contacted. The vehicle was taken to a dealer where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that he would receive a callback. The approximate failure mileage was 87,000.

The contact owns a 2018 GMC Yukon XL. The contact stated that the A/C unit had failed to operate as needed. The vehicle was taken to a dealer where the contact was provided an estimate for a diagnostic test. The contact then decided to take the vehicle to an independent mechanic to be diagnosed. The mechanic discovered a hole in the A/C condenser. The manufacturer was notified of the failure, and the contact was informed that the VIN was not under recall for the failure. The vehicle was not repaired. The failure mileage was approximately 73,000.