Saturn ION problems by year
5,467 complaints across 5 model years, 2003–2007. 2006 draws the most at 1,537; 2005 the fewest at 755.
Read this first
Complaint volume tracks how many cars were sold as much as how reliable they were. A popular model year will always look worse than a rare one. Compare the dominant failure system between years rather than the raw totals.