What owners reported to NHTSA, by component. One complaint can name several components.
Oct 1, 2026Visibility, Structure
The contact owns a 2024 GMC Hummer EV SUV. The contact stated that the vehicle was previously repaired under Customer Satisfaction Program: N242468850 (2022-2025 Hummer EV Roof & Tonneau Cover); however, the failure occurred a year after the Customer Satisfaction Program repair. The contact stated there was water inside the cabin of the vehicle and the rear seats were soaked. There was water found on the floorboard and dashboard, accompanied by a foul odor. The vehicle was taken to the dealer, where the engineers inspected and cleaned the drains and seals. The failure persisted, and the vehicl…
Sep 11, 2026Forward collision avoidance
Automatic Emergency Braking engages when no object is present to hit. This has happened twice at lower speeds (roughly 20-30 mph). Parked cars present on side of road. Dangerous to driver and passengers as well as anyone behind the vehicle. Dealer hasn’t yet inspected the vehicle but that is pending scheduling.
Aug 25, 2026Service brakes
During the morning drive, while in one pedal driving mode, the need to apply more brake due to a quick change of traffic lights occurred. The brakes felt hard and the vehicle did not feel like it was stopping as quickly as it normally would. When I parked the vehicle and exited no warning lights or other items were shown on the dash. Once I got back in the vehicle, a MIL light was lit and the "Service Brake Assist" message was displayed. With the vehicle running, it would not move either forward or reverse. Multiple attempts were made to move the vehicle, it was blocking a flow of truck traffi…
Mar 17, 2026Structure
Charge port door on vehicle will not open regardless of what you do.
Mar 17, 2026Steering, Electrical system, Service brakes⚠ Crash
While operating my 2024 GMC Hummer EV at a low speed in a school zone, I came to a complete stop at a stop sign and began making a left turn. As I initiated the turn, the steering wheel suddenly locked and became unresponsive. I was unable to turn the wheel back to the right or regain control of the vehicle’s direction. At the same time, the vehicle did not respond as expected when attempting to stop. Because I could not steer or properly control the vehicle, I collided with another vehicle. The impact with the other vehicle is what ultimately brought my vehicle to a stop. During the inciden…
Feb 7, 2026Vehicle speed control
The frunk latch on the vehicle becomes faulty and does not recognize the hood being latched and secure when it is. While driving, the vehicle without warning will immediately limit speed to 26mph regardless of existing vehicle speed. This has occurred multiple times when driving on the highway with the vehicle immediately decelerating and then saying the hood (frunk) is open. This poses a serious danger to not only the occupants of the vehicle but also those around them on the highway. This occurred when traveling at highway speed in the middle lane. This resulted in the inability to change la…
Sep 5, 2025Electrical system
The vehicle was no longer able to charge, and therefore could be stranded. Yes, the vehicle is currently back at the dealership and available for inspection. Without ability to charge, the vehicle could shutdown and not be able to restart. Yes. It was at the dealer from 6/27 to 8/20 and then the issue re-exhibited on 9/3 and it was returned to the dealership. Yes, it was reviewed by the dealership and returned, only to happen again within 100 miles. Yes, the Service Engine Soon light appears.
Aug 20, 2025Unknown or other, Service brakes
On August 11, 2025, at about 2:52pm, my vehicle was at a complete stop at an intersection awaiting the traffic light to turn green. There was a slight downgrade slope towards the intersection. The vehicle one-pedal driving was enabled. Weather was sunny with no wind or rain. Suddenly, the vehicle started vibrating violently and started rolling into the intersection. I pressed on the brake pedal but the vehicle continued to vibrate and the vehicle rolled into the middle of the adjoining lane of traffic. There was no traffic on the roadway and no other vehicles were affected. My vehicle had com…