Most common 2022 GMC Hummer EV problems
Share of the 6 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
GMC Hummer EV complaints by model year
2022 GMC Hummer EV recalls (4)
Electrical system › Propulsion system › Traction battery
General Motors, LLC is recalling certain 2026 Cadillac Escalade IQ, Escalade IQL, GMC Sierra EV, Chevrolet Silverado EV, and 2022 GMC Hummer EV Pickup vehicles. The high voltage battery may have an improperly secured internal module component.
Remedy: Dealers will replace the high voltage battery, free of charge. Owner notification letters were mailed August 24, 2026. Owners may contact Cadillac customer service at 1-800-333-4223, GMC customer service at…
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.
Remedy: Dealers will inspect and, if necessary, replace the high-voltage battery pack, free of charge. Letters explaining the safety risk were sent to owners January 5, 2024. Owner notification letters were mailed June 6, 2023.
Electrical system › Propulsion system › Traction battery
General Motors, LLC (GM) is recalling certain 2022 BrightDrop EV600 and 2022-2023 GMC Hummer EV Pickup electric vehicles. The high voltage battery pack enclosure may not be properly sealed, allowing water to enter the pack.
Remedy: The remedy is currently under development. Owner notification letters were mailed April 13, 2023. Second letters will be sent once the remedy is available.
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.
Remedy: Dealers will inspect and replace as necessary, the left and/or right rear taillight assemblies. Owner notification letters were not required but all vehicles were remedied as of March 17, 2022.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2022 GMC Hummer EV:
Pedestrian alert sounds
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.
What 2022 GMC Hummer EV owners say
Electrical system
Same situation occurred twice. I was in the car at a red light. Car had been stopped for about a minute. Was on a slight decline, engine brake was engaged to hold car in position. Car was stationary completely. Suddenly tons of warning lights flash on the dash board 'One pedal driving unavailable', 'Service ESC', 'Service trailer brake system', 'Service active steering system', '4wd unavailable', service driver assist system , 'Speed limited to 36 mph'. First time this happened was June 2023. Dealer was unable to find the source of the problem but reported that the car was working fine and gave it back to me. The second time was a 10/1/2024. I was able to drive slowly to a parking lot, turn the car off, wait a bit and turn it back on which seemed to reset the warnings. …
Visibility / Defogging / Defrosting issues are main safety concerns. Every winter for the last 3 years, the heater fails and blows only cold air. This is intermittent throughout the year, but recurring. With cold-weather driving conditions, it creates an unsafe driving experience when windshield and windows can't defog or defrost properly. The problem has been reported several times to the dealership and it was never fully resolved while under warranty. Each time I took the vehicle to the dealership for servicing with temporary adjustments. Dealership now states a heater module needs to be replaced at my expense although the same codes and part affected while under warranty. The component/part number needing replaced is part 85757074 (hybrid electric coolant heater module per dealership). …
Body & structure
Severe recurring roof water intrusion on 2022 GMC HUMMER EV; repeated failed repairs; interior rust/corrosion; safety concerns in high voltage EV. Vehicle: 2022 GMC HUMMER EV Edition 1 VIN: [redacted] Current mileage: ~12,000 miles My vehicle has a recurring defect involving severe water intrusion into the cabin through/around the removable roof panels/roof sealing areas during rain. Despite repeated dealership repair attempts, the vehicle continues to leak. The ongoing water intrusion has caused visible corrosion (rust) on interior metal structures, including the floor area and seat rails/seat mounting areas. The corrosion indicates prolonged moisture exposure inside the cabin. The dealership has attempted to repair this water intrusion issue approximately six (6) separate times, and the defect remains unresolved. …
While driving, a strong wind blew and flipped up the black hood insert of Hummer EV truck. It can cause severe damage to the windshield and harm the driver and front passenger.
Frequently asked questions
Is the 2022 GMC Hummer EV a good car?
That is a low number of complaints for a car on sale this long. So far owners have filed 6 complaints with NHTSA.
What is the most common problem with the 2022 GMC Hummer EV?
The electrical system — 3 complaints, 50% of all complaints for this model year. Next are the body & structure (3) and engine & cooling (1).
How many recalls does the 2022 GMC Hummer EV have?
There are 4 recalls for the 2022 GMC Hummer EV, the most recent from July 30, 2026 (traction battery). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.