2026 GMC Hummer EV Pickup: common problems
The maker issued 129 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 129
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 7 |
| Fuel/propulsion system | 0 | 0 | 3 |
| Forward collision avoidance | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
| Other | 0 | 0 | 119 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- 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 how to resolve a issue where a vehicle is not receiving OTA updates
- This preliminary PI was created to advise techniians in the field that they will not be able to perform a…
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
- This preliminary information is for technicians that may see DTCs that are history and should not perform…
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 update contains a required software change to help improve the overall software update and…
This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. During the update…
- • After this update, you may need to turn your Turn Signal Activated View setting back on • Fixes to help…
• 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…
- • Improvements to vehicle software updates
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path…
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 to instruct dealer on diagnostic procedures that need to be completed prior to replacing a…
- This preliminary information is to inform technicians and customers that GM is aware of the issue and the…
This preliminary information is to inform technicians and customers that GM is aware of the issue and the vehicle can still be driven. When a repair is available, this PI will be updated.
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
NHTSA lists 129 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2026 GMC Hummer EV Pickup?
There are no owner complaints in the NHTSA data for this year; the data comes from 129 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2026 GMC Hummer EV Pickup?
NHTSA lists 129 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2026 GMC Hummer EV Pickup from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2026 models
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.