AI DamageGMC Hummer EV SUV: problems, complaints, bulletins
Summary for the GMC Hummer EV SUV across 4 model years: 19 owner complaints and 353 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Electrical system 37% of all complaints
- 2 Steering 26% of all complaints
- 3 Forward collision avoidance 21% of all complaints
- 4 Service brakes 21% of all complaints
- 5 Visibility 16% of all complaints
- 6 Structure 11% of all complaints
- 7 Suspension 11% of all complaints
- 8 Fuel/propulsion system 5% of all complaints
- Electrical system: 7 complaints (37% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 101.
- Steering: 5 complaints (26% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 3.
- Forward collision avoidance: 4 complaints (21% of all); manufacturer bulletins for this component: 7.
- Service brakes: 4 complaints (21% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 4.
- Visibility: 3 complaints (16% of all); manufacturer bulletins for this component: 2.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- electric 2024–2025
- automatic, 1-speed 2024–2025
Drive: AWD
Symptoms owners describe
How many of the 19 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 7 | 1 | 101 |
| Steering | 5 | 1 | 3 |
| Forward collision avoidance | 4 | 0 | 7 |
| Service brakes | 4 | 1 | 4 |
| Visibility | 3 | 0 | 2 |
| Structure | 2 | 0 | 13 |
| Suspension | 2 | 0 | 7 |
| Fuel/propulsion system | 1 | 0 | 16 |
| Powertrain | 1 | 0 | 11 |
| Engine | 1 | 0 | 1 |
| Seat belts | 1 | 0 | 1 |
| Vehicle speed control | 1 | 0 | 1 |
| Lane departure | 1 | 0 | 0 |
| Equipment | 0 | 0 | 95 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
During the incident, multiple warning messages appeared on the dashboard, including a message indicating: “Service Steering System.” My vehicle sustained minimal damage due to its height (a bent side step), however the other vehicle sustained damage. Police responded to the scene and a report was filed.
The infotainment system on this 2024 GMC Hummer EV fails during driving in a way that creates a safety hazard. The system controls the rearview camera, drive mode display, turn signal audio feedback, charging and range information, climate controls, and all audible warnings.
POWER STEERING: Diagnostic code U0131 00 was found - Loss Communication with Power Steering Control Module. Dealer traced the fault to loose ground bolts G176 and G177 at the power steering control module. Technician was able to turn the bolts 1/4 to 1/2 turn to tighten them.
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.
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.
I am reporting a safety defect involving my 2025 GMC Hummer EV 3X (VIN: [XXX]). On XXX at approximately 18,880 miles, I first presented the vehicle for steering/alignment, suspension, and handling concerns. As of this complaint, the vehicle has approximately 26,840 miles.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This Preliminary information communicates to dealers steps to follow to obtain an IOK radio
- This Preliminary information communicates how to resolve a issue where a vehicle is not receiving OTA updates
- This preliminary information is to help technicians decide if the DTC needs to be diagnosed if relating to…
- This preliminary PI was created to advise techniians in the field that they will not be able to perform a…
- This preliminary information is for technicians that may see DTCs that are history and should not perform…
- This Preliminary information communicates to dealers a procedure to reset the radio
- • Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and…
- • Improved availability and map updates for Super Cruise • Improvements to active cabin ventilation •…
- • Improved availability and map updates for Super Cruise • Improvements to active cabin ventilation •…
- This update contains a required software change to help improve the overall software update and…
- • After this update, you may need to turn your Turn Signal Activated View setting back on • Fixes to help…
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.