2009 Cadillac STS Tire Size & Pressure
The 2009 Cadillac STS tire size depends on trim: the Base, 3.6 V, AWD takes P235/50R17 95S; the Base, 4.6 A, AWD takes 255/45R18 99Y; the Base, 3.6 V, RWD takes P235/50R17 95V; the Base, 4.6 A, RWD takes P235/50R17 95S; the V takes P255/45R18 99Y, per the factory service manual.
- Base, 3.6 V, AWD: P235/50R17 95S
- Base, 4.6 A, AWD: 255/45R18 99Y
- Base, 3.6 V, RWD: P235/50R17 95V
- Base, 4.6 A, RWD: P235/50R17 95S
- V: P255/45R18 99Y
Base, 3.6 V, AWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50R17 95S | Door Placard | — | — |
| All | P235/50R17 95S | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
Search by this configuration
Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.
Base, 4.6 A, AWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 255/45R18 99Y | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
Search by this configuration
Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.
Base, 3.6 V, RWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50R17 95V | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | 255/45R18 99Y | Door Placard | — | — |
| All | P235/50R17 95V | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
Search by this configuration
Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.
Base, 4.6 A, RWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50R17 95S | Door Placard | — | — |
| All | P235/50R17 95S | Door Placard | — | — |
| All | 255/45R18 99Y | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
Search by this configuration
Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.
V
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P255/45R18 99Y | Door Placard | — | — |
| All | P275/40R19 101Y | Door Placard | — | — |
Search by this configuration
Retailer searches do not verify vehicle fitment. Check the driver's door placard and wheel setup before ordering.
More STS Specs & Repair Guides
🛢️ 2009 Cadillac STS Oil Type & Capacity →🌧️ 2009 Cadillac STS Wiper Blade Sizes →💡 2009 Cadillac STS Light Bulb Sizes →📖 2009 Cadillac STS Factory Service Manual →Powered by factory manual data from our partner network AllOEMManuals.com.
Frequently Asked Questions
What size tires does a 2009 Cadillac STS take?
It depends on the trim: Base, 3.6 V, AWD uses P235/50R17 95S; Base, 4.6 A, AWD uses 255/45R18 99Y; Base, 3.6 V, RWD uses P235/50R17 95V; Base, 4.6 A, RWD uses P235/50R17 95S; V uses P255/45R18 99Y.
What is the tire pressure for a 2009 Cadillac STS?
Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.
What is the bolt pattern on a 2009 Cadillac STS?
Bolt pattern data is available in the factory service manual.