2025 Gmc Hummer EV SUV Complaints

I am reporting a safety defect involving my 2025 GMC Hummer EV 3X (VIN: [XXX]). On XXX at approximately 18,880 miles, I first presented the vehicle for steering/alignment, suspension, and handling concerns. As of this complaint, the vehicle has approximately 26,840 miles. I have driven nearly 8,000 miles while repeatedly reporting unresolved safety concerns and transporting my two children (ages [XXX] and [XXX]) because I had no practical transportation alternative. Following warranty repairs, including rear control arm replacement, the vehicle developed a severe pull to the right that did not exist before repair. It requires constant steering correction to remain in its lane, and Super Cruise can no longer reliably maintain lane position. Premature and abnormal tire wear has continued throughout the unresolved alignment condition. The vehicle has undergone six warranty-related service events at two authorized GM dealerships. Despite repeated repair attempts and two direct escalatio...

Under full acceleration on flat, dry pavement, the vehicle suddenly pulls hard to the right or left without any steering input. The steering wheel does not move, but the vehicle abruptly changes direction, requiring immediate counter‑steering to avoid losing control. This happens every time under full acceleration and has been confirmed by two GMC dealers. GM Corporate states this is “normal,” but the behavior is unsafe and could cause a crash. Two GMC dealers reproduced the issue and confirmed the sudden directional pull under full acceleration, but both stated it is ‘normal.’ GM Corporate also acknowledged the behavior but claims it is within manufacturing tolerance. The vehicle still pulls violently to one side under full acceleration, creating a serious safety risk.

The super cruise self driving system is entirely defective and faulty, this is a safety issue.

The contact owns a 2025 GMC Hummer EV. The contact stated while driving at an undisclosed speed, the message "Forward Collision Avoidance System Unavailable" was displayed. The contact stated while another vehicle pulled in front of the contact's vehicle, the forward collision avoidance system and the side-view sensors safety features failed to engage. The vehicle was taken to the dealer, but was not diagnosed due to a schedule error. The diagnostic testing appointment was rescheduled for a later date. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

On [XXX], my [XXX] son was riding in the back seat of our 2025 GMC Hummer EV (VIN: [XXX] ) and reported his seatbelt felt loose. I pulled over and discovered the seatbelt bracket was completely detached from the vehicle frame. The bolt was present, but the nut that secures the bracket was entirely missing, leaving the belt nonfunctional and my child at risk of serious injury or death in the event of a collision. This is a catastrophic failure of a federally regulated safety system. I immediately contacted GMC and the dealership, explained the issue, and stated the vehicle was unsafe to drive. Despite this, I was told to drive the vehicle in for service on 6/9. The dealership confirmed the nut was never installed during manufacturing. However, instead of repairing the defect properly using OEM hardware and torque specs, the dealer used a generic lock nut found in their shop and said it “should hold.” No engineer signed off on the repair. There were no warning lights or messages. The...