GMC HUMMER EV

ELECTRICAL SYSTEM:WIRING

General Motors, LLC (GM) is recalling certain 2024 Cadillac Lyriq, Chevrolet Blazer EV, Chevrolet Silverado EV, GMC Hummer EV SUV, and GMC Sierra EV vehicles. The electric motors in the rear drive units may have insufficiently insulated wires that can contact each other, resulting in a loss of drive power.

Risk: A loss of drive power increases the risk of a crash.

SEAT BELTS:FRONT:ANCHORAGE

General Motors, LLC (GM) is recalling certain 2023-2024 GMC Hummer EV pick up, 2024 GMC Hummer EV SUV, and 2024 Chevrolet Silverado EV vehicles. The left or right front seat belt buckle attachment bolts may not be tightened properly.

Risk: An improperly tightened seat belt buckle may not restrain an occupant as intended, increasing the risk of injury during a crash.

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

General Motors, LLC (GM) is recalling certain 2022 GMC Hummer EV and 2023 Cadillac Lyriq vehicles. Certain connections within the high-voltage battery pack may be out of position or incorrectly welded, which can cause a loss of drive power.

Risk: A loss of drive power can increase the risk of a crash.

EXTERIOR LIGHTING:TAIL LIGHTS

General Motors, LLC (GM) is recalling certain 2022 GMC Hummer EV vehicles. Taillight software can cause one or both rear taillights to become inoperative, or remain fully or partially illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk: A taillight that fails to illuminate or illuminates incorrectly may reduce the visibility of the vehicle, or communicate incorrect information to other drivers, increasing the risk of a crash.

ELECTRICAL 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.

UNKNOWN OR OTHER

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 come to a compete stop in the roadway and I attempted to accelerate through the intersection but the vehicle would not move. I recycled the power to the vehicle and placed the vehicle into drive and proceeded to drive through the intersection. I do recall that when I was pressing the brake pedal, the vibration felt somewhat similar to vibration of the ABS brake system when the tires are losing traction but the vibration was much more pronounced. I pulled the vehicle onto the side of the road and checked the driver information display. A "Service ESC" notification appeared on the driver information panel followed by "One-Pedal Driving Unavailable Use Brake for Stopping". No other warnings or notifications were observed after this incident and the vehicle seems to be driving normally. I was able to re-enable the one-pedal driving mode the next morning.