Chevrolet HHR engine and engine cooling problems by year
76 NHTSA owner complaints name the engine and engine cooling across 6 HHR model years. The most reported year is 2006 with 34 reports.
| Year | Engine and Engine Cooling reports | Share | Median mileage | |
|---|---|---|---|---|
| 2011 HHR | 1 | 0% | — | |
| 2010 HHR | 9 | 2% | — | |
| 2009 HHR | 7 | 1% | — | |
| 2008 HHR | 8 | 1% | — | |
| 2007 HHR | 17 | 2% | 34,666 mi | |
| 2006 HHR | 34 | 3% | 46,290 mi |
Share is the fraction of that year’s complaints naming the engine and engine cooling. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.