Not sure what rimDiameter size options are for your 2009 Cadillac STS Platinum V6?
Choose from the options below.
Version/Option
Tire Size
235/50R18
255/45R18
235/50R18
Front: 235/50R18, Rear: 255/45R18
255/45R18
Version/Option
Tire Size
Version/Option
Tire Size
Front: 235/50R18, Rear: 255/45R18
255/45R18
Version/Option
Tire Size
235/50R18
255/45R18
Version/Option
Tire Size
235/50R18
Front: 235/50R18, Rear: 255/45R18
Version/Option
Tire Size
255/45R18
Find your version / option
There are two places to find your tire size. Look directly on your tire sidewall or inside your driver’s side door jamb for your vehicle’s tire size.
Passenger Tire Sidewall
High Flotation Tire Sidewall
Inside Your Door Jamb