Cadillac STS tire size
The most common factory tire size for the Cadillac STS is 235/50R17, on 7 of the 14 year and trim fits listed. The table lists every year from 2010 to 2011 and the size each trim was built with. Pick your year and trim to see the tires that fit.
Cadillac STS tire sizes by year
| Year | Factory tire size | Trims |
|---|---|---|
| 2011 | 235/50R17 | Base AWD, Base RWD, Luxury RWD |
| 235/50R18 front, 255/45R18 rear | Luxury AWD, Premium RWD | |
| 2010 | 255/45R18 | Premium Performance Package V6 RWD, Premium Performance Package V8 AWD, Premium Performance Package V8 RWD, Premium RWD, V8 w/ Brembo Brakes RWD |
| 235/50R17 | Base V6 AWD, Base V6 RWD, Luxury AWD, Luxury RWD | |
| 235/50R18 front, 255/45R18 rear | Luxury AWD |
Check your own tire
A trim can be sold with more than one wheel size. The size printed on the sidewall of your current tire, or on the placard in the driver's door jamb, is the one your vehicle has.