Saturn ION: which model years draw the most owner complaints?
4,341 complaints filed with NHTSA about the Saturn ION, model years 2003 to 2008. No model year stands out for the engine or transmission against the others. Quietest mature years by complaint count: 2005, 2003. Counts of unverified owner reports, compared only with other years of the same model; not failure rates.
Complaints by model year
| MODEL YEAR | COMPLAINTS | VS OTHER YEARS | STANDS OUT | RECALLS |
|---|---|---|---|---|
| 2003 ION | 757 | quiet: 2 of 5 | 7 | |
| 2004 ION | 897 | — | 10 | |
| 2005 ION | 572 | quiet: 1 of 5 | 5 | |
| 2006 ION | 1,235 | — | 6 | |
| 2007 ION | 876 | — | 7 | |
| 2008 IONFEW REPORTS | 4 | — | 0 |
"Stands out" = 40 or more complaints naming that system and at least twice the model's quiet (lower-quartile) year, or twice the share seen across every vehicle of that model year. Newer years have had less time on the road. "Quiet" ranks only years with 7+ years on the road and 20+ complaints. NHTSA data through November 2026.
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Other Saturn models
Saturn Astra · Saturn Aura · Saturn LS · Saturn Outlook · Saturn SL · Saturn Sky · Saturn Vue. All makes and models.
Source: NHTSA public complaints, recalls, service bulletin and investigation databases, data received through November 2026. Complaints are unverified reports from owners, not failure rates: sales volumes are unknown, so a model year is only compared with other years of the same model. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Year pages: 20032004200520062007