2008 Hummer H3 problems and complaints
Owners have filed 113 complaints with NHTSA about the 2008 Hummer H3. The most-reported areas: Electrical System (34), Engine (18), Air Bags (17).
Key takeaways
- 113 owner complaints on file with NHTSA.
- 3 involve a crash, 6 a fire, 5 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 34 | 30% |
| Engine | 18 | 16% |
| Air Bags | 17 | 15% |
| Visibility | 15 | 13% |
| Visibility/Wiper | 12 | 11% |
| Unknown Or Other | 8 | 7% |
| Structure | 8 | 7% |
| Steering | 5 | 4% |
| Suspension | 4 | 4% |
| Fuel/Propulsion System | 4 | 4% |
| Service Brakes | 4 | 4% |
| Engine And Engine Cooling | 4 | 4% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2008 Hummer H3 4-DR w/SAB | Not rated | Not rated | Not rated | 3/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Suspension - filed 2026-04-16
The contact owns a 2008 Hummer H3. The contact stated that while his son was driving 35 MPH, there was a loud metal rattling sound while attempting to turn left or right. The driver also heard the sound coming from the rear of the vehicle. The vehicle was taken to an independent mechanic, where it was diagnosed, and it...
Fuel/Propulsion System - filed 2026-01-30
The fuel level sensor stopped working now it say I’m on E These go out on these cars And are on the recall list, but not on my vehicle yet
Electrical System - filed 2025-07-13
The pass lock in this vehicle is faulty. On numerous occasions, it has left me unable to start the vehicle, but if you wait 10 minutes each time, it will start again, but it happens all the time. I've seen numerous complaints online and GM needs to do something about it.
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More for the 2008 Hummer H3
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.