2004 Hummer H2 problems and complaints
Owners have filed 59 complaints with NHTSA about the 2004 Hummer H2. The most-reported areas: Electrical System (14), Service Brakes (14), Visibility (10).
Key takeaways
- 59 owner complaints on file with NHTSA.
- 6 involve a crash, 1 a fire, 5 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 14 | 24% |
| Service Brakes | 14 | 24% |
| Visibility | 10 | 17% |
| Hydraulic | 6 | 10% |
| Steering | 6 | 10% |
| Suspension | 3 | 5% |
| Air Bags | 3 | 5% |
| Visibility/Wiper | 3 | 5% |
| Structure | 3 | 5% |
| Engine | 2 | 3% |
| Electronic Stability Control (esc) | 2 | 3% |
| Power Train | 2 | 3% |
One complaint can name several components, so shares add up to more than 100%.
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Electrical System - filed 2026-02-10
Odometer Fraud. The contact purchased a 2004 Hummer H2. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 200,000. It was later discovered that the mileage on the Title was 210,000. Additionally, the contact stated she felt ...
Seat Belts - filed 2022-10-10
Report states my vehicle has a recall on 2nd row seatbelts.
Electrical System,engine - filed 2022-02-22
Yesterday I turned off the alarm and unlocked the doors via the keypad. I opened the driver door and my wife opened the passenger rear door and the Hummer H2 started. No key in the ignition and the fob does not have a start button. I then got in the car and inserted the key and turned the key to ON then to off and the...
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More for the 2004 Hummer H2
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.