Home · 2025 GMC Hummer EV · Complaints
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.
Newest first · 2 complaints
I was driving down the street and suddenly lost all motive Power, vehicle became difficult to control. I have a video. The car also made a grinding feeling and very loud whining noise
NHTSA ODI 11682571
When it rains, within 24 hours, the windows do not automatically move down enough to open the door on command of pulling the door handle. This disallows the ability to close the door back if the door is open, barely underneath the lip of the sky panels. Because of this power loss, the mirrors do not open, the door locks do not work, and the windows do not work. To be able to re-close the doors, the sky panels must be removed and either left off or replaced. Essentially rain leaks into the body where wiring that controls door locks, door windows, causing electrical failure of this circuit only. After some hours of time without intervention function, restores, presumably due to drying out of wet parts.
NHTSA ODI 11648877
Working with the data? Download all 2 complaints as CSV · fetched from NHTSA July 19, 2026