Hummer H2 power train problems by year
19 NHTSA owner complaints name the power train across 4 H2 model years. The most reported year is 2003 with 11 reports.
| Year | Power Train reports | Share | Median mileage | |
|---|---|---|---|---|
| 2006 H2 | 2 | 9% | — | |
| 2005 H2 | 4 | 5% | — | |
| 2004 H2 | 2 | 3% | — | |
| 2003 H2 | 11 | 8% | — |
Share is the fraction of that year’s complaints naming the power train. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.