Hummer H3 electrical system problems by year
240 NHTSA owner complaints name the electrical system across 4 H3 model years. The most reported year is 2006 with 96 reports.
| Year | Electrical System reports | Share | Median mileage | |
|---|---|---|---|---|
| 2009 H3 | 34 | 49% | 76,900 mi | |
| 2008 H3 | 34 | 30% | 80,500 mi | |
| 2007 H3 | 76 | 32% | 90,000 mi | |
| 2006 H3 | 96 | 27% | 89,000 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.