Hummer H2 electrical system problems by year
69 NHTSA owner complaints name the electrical system across 4 H2 model years. The most reported year is 2005 with 27 reports.
| Year | Electrical System reports | Share | Median mileage | |
|---|---|---|---|---|
| 2006 H2 | 4 | 18% | — | |
| 2005 H2 | 27 | 34% | 52,118 mi | |
| 2004 H2 | 14 | 24% | 98,720 mi | |
| 2003 H2 | 24 | 17% | 55,894 mi |
Share is the fraction of that year’s complaints naming the electrical system. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.