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What 7 owners told NHTSA about the 2025 GMC Hummer EV SUV

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (7)Driver assistance (2)Electrical system (2)Steering (2)Suspension (2)Engine (1)Fuel system (1)Lane Departure (1)Seat belts (1)Transmission & drivetrain (1)

2 of 7 complaints match · Driver assistance · clear filters

Aug 25, 2025Driver assistance

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

NHTSA ODI 11682859

Jul 30, 2025Driver assistance

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.

NHTSA ODI 11677311

Working with the data? Download all 7 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2025 GMC Hummer EV SUV verdict →