GMC Complaints

Engine ceased while driving and shutdown. Towed to dealership. Dealership ran diagnostic test and code P0016 came up. Its 6.2 engine has recall on other years with similar issues

The contact owns a 2019 GMC Acadia. The contact stated that the vehicle failed to shift into park and failed to shut off. There was a shift to a park error message displayed. The vehicle was taken to the local dealer, where it was diagnosed with a contact issue in the transmission box. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was approximately 91,355.

The torque converter has been going since before I bought this vehicle. When the RPMs are between one and two, the entire vehicle starts shaking and there is no acceleration. This is a huge safety concern, especially with traffic.

Without any warning, the V8 L87 6.2 liter engine suddenly seized up, began shaking with significant reduced power. I was fortunate that I could drive slowly to safety and was not on the expressway. In my research, I understand this is related to a design/manufacturing issue with the connecting rods and crankshafts in this type of engine. As I investigated the issue, I found that 600,000 vehicles were recalled with the recall either completely replacing the engine or upgrading the oil type from standard to a thicker, higher-viscosity 0W-40 full synthetic to provide better protection under high stress, along with a new oil cap and filter. In our case, we were directed to change the oil and even with that change, we experienced this dangerous engine failure which cost us $12K ! For that cost of repair, we elected to have the engine replaced for about $1K more to get a 100K mile warranty on the engine. However, our additional concern with the replacement engine is they gave us a remanufactured version of the L87 and we have not found confirmation that they have adequately addressed the design/manufacturing flaws so may be vulnerable to the same seizing issue. We appreciate your attention to this widespread GM issue.

Front chrome hood deflector detached while driving down the interstate. Had a recall on the deflector, recall was performed and the chrome deflector still detached. Tried to get GM to repair and they declined my recall claim. GM stated my 3 year bumper to bumper warranty had expired and they did not have to fix it. This is an extremely hazardous condition and should be covered.

driving normally ? brief stumble/sputter/deceleration ? engine died/no power ? check-engine light ? vehicle coasts with no throttle response ? would not restart, then restarted briefly with rough idle and immediately died. Reproduced. Towed. Dealer has not yet seen the vehicle. Inspection. No. Notification. Check engine light illuminated, truck automatically went into neutral. Safety. We were driving in traffic when problems occurred.

October 24, 2025 I had taken in my vehicle for recall 25V274 Loss of motor power. Mine was deemed unaffected and given the oil change they were doing as part of that. Today it died while I was pulling a trailer with a RZR on it. I had drove about 90 miles with a stop midway when I did have the engine turned off. Then it just quit. My vehicle only has 13k miles on it. Not sure if police report was filed but they were called and there directing traffic because it stopped in a busy intersection. I had to be towed, and pay a separate fee to have the trailer towed. At 1000 miles on the truck it had to be taken in for an infotainment screen replacement.

When turning on the car, a message pops up on the dash and will not go away. Dashboard says “ service safety restraint system”

The contact owns a 2019 Yukon Denali. The contact stated that while making a right turn the vehicle stalled. The vehicle was not able to restart. The vehicle was towed to an independent mechanic where it was diagnosed that the lifter went out and caused shaving to go into the oil and then the engine seized up and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 123,000.

The contact owns a 2018 Gmc Sierra 3500. The contact stated while operating the vehicle at an undisclosed speed the vehicle suddenly shutoff, the vehicle was coasted to side of the road. The contact referenced NHTSA Campaign Number: 21V739000 (FUEL SYSTEM, GASOLINE) however, the VIN was not included in the recall repair. The vehicle was towed to a dealer where it was diagnosed to be the fuel control module. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 177,000.