Cadillac STS by year

Midsize cars. Every model year EPA has rated, with what owners and NHTSA have on file.

Owner complaints ran highest for the 2006 (139, most about air bags) and lowest for the 2009 (15), among years with at least 10. Newer years have had less time to collect complaints, and counts aren't adjusted for how many were sold, so a lower count doesn't mean a more reliable year.

Cadillac STS, each model year
YearComplaintsMost named partRecall campaignsNHTSA overallCombined mpg
20117Electrical system0–21
20104Electrical system0–17–21
200915Air bags0–17–20
200850Air bags1–16–20
200752Air bags2–16–19
2006139Air bags4–17–19

Complaints are unverified reports owners filed with NHTSA, not adjusted for sales or for how long each year has been on the road: a newer year's lower count doesn't make it more reliable. NHTSA's overall rating is the lowest across the versions it tested that year. About the data