Hummer H3 misfire / rough idle reports by year
31 NHTSA complaints describe misfiring cylinders or rough idling on Hummer H3 vehicles. The most reported year is 2006 with 23 reports.
| Year | Reports | Share of narratives | |
|---|---|---|---|
| 2007 H3 | 8 | 3% | |
| 2006 H3 | 23 | 6% |
Counts come from keyword analysis of complaint narratives — one complaint can describe several symptoms, and classification is approximate. Raw counts favor years that sold in larger numbers.