Best Year to Buy a Saturn Ion
Reliability rankings across 5 model years, based on NHTSA owner complaints
Based on 5 model years of NHTSA complaint data, the 2005 Saturn Ion is the most reliable year to buy with a Klunk Score of 21/100 ("Check Engine") and only 572 owner complaints. The 2004 model year is the least reliable with 898 complaints and a score of 5/100 ("Total Klunk").