Hummer H2 problems by year
301 owner complaints filed with NHTSA across 6 Hummer H2 model years. Last verified Aug 7, 2026. Complaint totals are lifetime counts — years that have been on the road longer accumulate more reports.
| Year | Complaints | Recalls | Most reported problem | |
|---|---|---|---|---|
| 2008 Fewer complaints | 7 | 3 | — | |
| 2007 Fewer complaints | 11 | 2 | — | |
| 2006 | 22 | 4 | Electrical System | |
| 2005 | 79 | 2 | Electrical System | |
| 2004 | 59 | 3 | Electrical System | |
| 2003 Most complained | 141 | 4 | Visibility |
How to read this. Complaints are unverified reports owners file with NHTSA’s Office of Defects Investigation, counted once per case number. Raw totals are not adjusted for sales volume, and recent model years have had less time on the road. “Most complained” flags years well above the model’s median; treat it as a signal for deeper research, not a verdict. This page is not affiliated with Hummer.