Chevrolet HHR power train problems by year
191 NHTSA owner complaints name the power train across 6 HHR model years. The most reported year is 2006 with 82 reports.
| Year | Power Train reports | Share | Median mileage | |
|---|---|---|---|---|
| 2011 HHR | 10 | 5% | — | |
| 2010 HHR | 21 | 4% | 60,000 mi | |
| 2009 HHR | 16 | 3% | 62,000 mi | |
| 2008 HHR | 22 | 4% | 43,000 mi | |
| 2007 HHR | 40 | 6% | 73,930 mi | |
| 2006 HHR | 82 | 8% | 60,000 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.