What GMC Hummer EV owners have reported to NHTSA, the service bulletins the manufacturer sent dealers, and any federal defect investigations, by model year. See GMC Hummer EV safety recalls or check your VIN.
Complaints owners filed with NHTSA, by the model year of the vehicle. A high count can also mean a popular year, so compare it with how many were sold.
| Year | Complaints | Crashes | Fires | Injured | Deaths | TSBs |
|---|---|---|---|---|---|---|
| 2026 | 0 | 0 | 0 | 0 | 0 | 128 |
| 2025 | 13 | 0 | 0 | 0 | 0 | 387 |
| 2024 | 11 | 1 | 0 | 0 | 0 | 567 |
| 2023 | 1 | 0 | 0 | 0 | 0 | 640 |
| 2022 | 6 | 0 | 0 | 0 | 0 | 730 |
The vehicle systems named most often in GMC Hummer EV complaints (one complaint can name several).
In the owners’ own words, as filed with NHTSA. Unverified reports; NHTSA removes personal details before publishing.
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 vehicle was taken to the dealer a second time, where the drains and seals were cleaned a second time. The …
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 hasnât yet inspected the vehicle but that is pending scheduling.
While driving on a public road, the vehicle suddenly shut down and rebooted itself. Motive power was lost during the event. This has happened at least a dozen times during normal driving, including while transporting a child. Video of an occurrence was recorded. The vehicle is a 2025 GMC Hummer EV with approximately 10,400 miles and has been in service about eight months. This creates a serious safety risk. A sudden loss of propulsion and system reboot while moving can leave the driver unable to maintain speed or control in traffic and increases the risk of a crash. The vehicle has also had other problems that have been reported to an authorized GMC dealer: a front tire worn to the cords a…
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 traffic at the business. No movement occurred. OnStar was contacted for road side assistance and a Wrecker…
While traveling with my wife and two toddlers over the July 4th holiday weekend, the 12 volt battery on my 2025 GMC Hummer EV failed completely at approximately 7,500 miles and five months of ownership. The vehicle would not accept a jump start and was disabled where it sat, stranding my family. AAA installed a replacement 12 volt battery roadside at a cost of $600. Following the battery replacement, a Service High Voltage System warning appeared on the dash and remained on, and the air conditioning system stopped functioning entirely. This occurred in Southern California summer heat with two small children in the vehicle. The HVAC loss and the high voltage system warning persisted for week…
While traveling with my wife and two toddlers over the July 4th holiday weekend, the 12 volt battery on my 2025 GMC Hummer EV failed completely at approximately 7,500 miles and five months of ownership. The vehicle would not accept a jump start and was disabled where it sat, stranding my family. AAA installed a replacement 12 volt battery roadside at a cost of $600. Following the battery replacement, a Service High Voltage System warning appeared on the dash and remained on, and the air conditioning system stopped functioning entirely. This occurred in Southern California summer heat with two small children in the vehicle. The HVAC loss and the high voltage system warning persisted for week…
While traveling with my wife and two toddlers over the July 4th holiday weekend, the 12 volt battery on my 2025 GMC Hummer EV failed completely at approximately 7,500 miles and five months of ownership. The vehicle would not accept a jump start and was disabled where it sat, stranding my family. AAA installed a replacement 12 volt battery roadside at a cost of $600. Following the battery replacement, a Service High Voltage System warning appeared on the dash and remained on, and the air conditioning system stopped functioning entirely. This occurred in Southern California summer heat with two small children in the vehicle. The HVAC loss and the high voltage system warning persisted for week…
Black hood center molding broke off, hit the windshield and blocked driver view.
Repair instructions and other communications the manufacturer sent dealers about known issues. A TSB is not a recall, and the repair is usually free only while the car is under warranty; ask your dealer for the bulletin number.
This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
Service Update. Certain vehicles listed above may enable the new King Crab Feature through OTA programming or programming at the dealer. Dealers will perform a comprehensive software update. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
⢠After this update, you may need to turn your Turn Signal Activated View setting back on ⢠Fixes to help ensure start reliability and prevent battery drain ⢠Updates to enable memory seat buttons to be linked to a user profile. Up to two user profiles can be linked to your vehicle's memory seat buttons. ⢠Improved charging performance and messages ⢠Better performance and reliability of wireless phone charging
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
⢠Improvements to vehicle software updates
If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.
This PI is created to inform GM dealers that some vehicles may intermittently fail to connect wireless Apple CarPlay or Android Auto after Bluetooth pairing during the first key cycle. The condition is caused by a software anomaly.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
⢠After this update, you may need to turn your Turn Signal Activated View setting back on ⢠Fixes to help ensure start reliability and prevent battery drain ⢠Updates to enable memory seat buttons to be linked to a user profile. Up to two user profiles can be linked to your vehicle's memory seat buttons. ⢠Improved charging performance and messages ⢠Better performance and reliability of wireless phone charging
NHTSA’s Office of Defects Investigation opens these when complaints point to a possible safety defect. Many end in a recall.
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-spe
Source: NHTSA Office of Defects Investigation public data (complaints, manufacturer communications, investigations), model years 2010 and later. Had a safety problem? Report it to NHTSA.
In complaints filed with NHTSA for model years 2022–2026, owners most often name: electrical system, structure, forward collision avoidance. 31 complaints are on record.
No. A complaint is an unverified report from an owner. A technical service bulletin (TSB) is the manufacturer telling dealers how to fix a known issue; it is not a safety recall and is usually covered only under warranty. A recall is a formal safety action, and its repair is free.
File a vehicle safety complaint at NHTSA.gov. NHTSA reads every report, and patterns of complaints are what open defect investigations and, eventually, recalls.