GMC Complaints

We have 2011 GMC Terrain. We bought it used so we have only had it a couple years. We noticed it seemed to be using a little more oil but then we were told to keep watch on it. My husband did. Then one day while I was driving it I thought I had heard a faint clicking noise. I said that car isn’t going anywhere until it’s fixed. Little did we know it wouldn’t ever start again. We didn’t know about a so call recall or not a recall. Still until we had to have it towed in to be fixed, I heard it mentioned. By then the car was repaired at our expense of $8000+. We are retired and don’t have or didn’t have money for that repair. The only reason we had a little money was because my husband got paid for back (lump sum) payment just a couple of days before this. We still owe on the car. Without it we only have an old 2001GMC SIERRA 1500. We live paycheck to paycheck. I called one of GMC’s phone numbers today and I was told if we didn’t have it done at a GMC FACILITY we get NO reimbursement. I cried. My husband is a real stickler when it comes to our vehicles and maintenance and logs and also keeps receipts.Please tell me there is some to help us.

Rear right clunk in rear suspension. Dealer kept truck for 2 days and can't figure it out. Worried it could be a suspension nut or bolt and could cause a crash.

The engine has a knocking noise. Very noticeable. Started around 3 weeks ago and has done it on multiple occasions.

The contact owns a 2024 GMC Canyon. The contact stated that on several occasions while driving at an undisclosed speed under sunny conditions, light entering through the windshield reflected off the chrome trim around the instrument panel and caused distortion and lines in the driver's side and driver’s mirror, creating a visibility hazard. The contact added that the glare disappeared when the windows were rolled down. The vehicle was taken to a dealer, and the contact was informed that the vehicle was operating normally. The manufacturer was notified of the failure. The failure mileage was 12,604.

The contact owns a 2023 GMC Yukon. The contact stated that while driving 75 MPH and depressing the accelerator pedal, there was an abnormal clunking sound coming from the front of the vehicle; however, the contact was unsure if the failure was coming from the engine or transmission. The contact pulled over to the right side of the road, exited the vehicle, and inspected the vehicle, but found no failure. There was an unknown warning light illuminated. The contact stated that the failure had occurred on four occasions. An unknown dealer was contacted. The vehicle was taken to a dealer, where it was diagnosed, and determined that the valve body needed to be replaced. The valve body was replaced. The manufacturer was not notified of the failure. The approximate failure mileage was 33,395.

keep quit working when i was driving , i just pick up from delearship for i another issue with on-star and is not part available is been there for over month not fix and now the brakes issue

The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle jerked abnormally while depressing the accelerator pedal. A dealer was contacted. The vehicle was taken to the dealer, and the technician informed the contact that the failure might be related to the engine or transmission; however, the contact was informed that the vehicle needed to be inspected to determine the cause of the failure. The vehicle was not repaired. The contact stated that the failure had occurred several times. The manufacturer was notified of the failure and informed the contact to file a complaint with the NHTSA Hotline. The approximate failure mileage was 41,248.

The contact owns a 1995 N/A GMC Sierra 1500. The contact stated that after parking, turning the vehicle off, and exiting, the vehicle suddenly rolled forward, down a slight incline, and crashed into another parked vehicle. The cause of the failure was not determined. The manufacturer and local dealer were not contacted regarding the failure. In addition, while making a left turn into an intersection, a second vehicle crashed into the front of the vehicle. During the crash, no air bags deployed. The contact sustained injuries to both the shoulder and the chest. No medical treatment was required. A police report was filed at the scene. The cause of the failure was not determined. No further information was available. The VIN was not available. The failure mileage was 4,000.

The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving approximately 55 MPH, the vehicle started losing motive power. The accelerator pedal was depressed and the engine revved; however, the vehicle failed to respond as intended. There was no warning light illuminated. The contact pulled over, and after several attempts, the vehicle restarted. The contact was able to drive the vehicle to a local dealer and failed to exceed 10 MPH. The dealer was able to diagnose the vehicle and determined that the torque converter had failed and needed to be replaced. The vehicle was repaired. Additionally, the contact stated that while driving approximately 35 MPH, the vehicle started vibrating and stalled. The contact stated that again, there were no warning lights. The contact was able to restart the vehicle and drove the vehicle back to the same dealer. The dealer diagnosed the vehicle and determined that the fuel injectors had failed and needed to be replaced. The vehicle was repaired; however, the fuel injectors failed, and the contact had taken the vehicle to a different dealer. The vehicle was not yet diagnosed or repaired. The contact stated that while driving approximately 65 MPH, the brake pedal was depressed but was difficult to depress. The contact allowed the vehicle to coast and was able to pull off the road. The contact slowed down to approximately 2 MPH and was able to use the parking brake to stop the vehicle. The vehicle was turned off and restarted to reset the braking functionality. The contact was out of town and took the vehicle to a dealer to be diagnosed and repaired. The manufacturer was informed of the failure. The failure mileage was approximately 24,000.

On August 17, 2025 while traveling north on the Garden State Parkway in New Jersey, my vehicle suffered a catastrophic engine failure without warning. Fortunately, I was able to get off the roadway without incident. This is the SECOND time this has occurred in the past 4 months. (1st NHTSA Complaint 04/18/2025 #11655375) This second engine failure occurred with less than 6000 miles, and only about 3 months of driving. As of this report, the vehicle has not been repaired.