Saturn Ion engine problems by year
140 NHTSA owner complaints name the engine across 5 Ion model years. The most reported year is 2006 with 41 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2007 Ion | 34 | 4% | 77,335 mi | |
| 2006 Ion | 41 | 3% | 88,344 mi | |
| 2005 Ion | 22 | 4% | 118,000 mi | |
| 2004 Ion | 23 | 3% | 107,000 mi | |
| 2003 Ion | 20 | 3% | 120,000 mi |
Share is the fraction of that year’s complaints naming the engine. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.