Hummer H3 power train problems by year
42 NHTSA owner complaints name the power train across 4 H3 model years. The most reported year is 2006 with 20 reports.
| Year | Power Train reports | Share | Median mileage | |
|---|---|---|---|---|
| 2009 H3 | 2 | 3% | — | |
| 2008 H3 | 1 | 1% | — | |
| 2007 H3 | 19 | 8% | 70,693 mi | |
| 2006 H3 | 20 | 6% | 63,052 mi |
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.