What size tires fit a 2011 Cadillac STS?

The 2011 Cadillac STS uses P235/50R17 95S as the OEM tire size.

What tire pressure should a 2011 Cadillac STS have?

The recommended tire pressure for the 2011 Cadillac STS is 30 PSI front and 30 PSI rear (cold).

Can I use a different tire size on my 2011 Cadillac STS?

It is recommended to use the OEM size P235/50R17 95S. Alternative sizes may affect speedometer accuracy, handling, and clearances.

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2011 Cadillac STSTire Size & Pressure

OEM spec from the factory service manual for the AWD variant.

Quick Answer

OEM Tire Size

P235/50R17 95S

Pressure (Front / Rear)

30 / 30 PSI

Load Index

Source: Factory service manual — 2011 Cadillac STS AWD. View full manual section →

Other specs:All specs Oil Type Coolant

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P235/50R17 95S for Cadillac STS

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Frequently Asked Questions

What size tires fit a 2011 Cadillac STS?: The 2011 Cadillac STS uses P235/50R17 95S as the OEM tire size.
What tire pressure should a 2011 Cadillac STS have?: The recommended tire pressure for the 2011 Cadillac STS is 30 PSI front and 30 PSI rear (cold).
Can I use a different tire size on my 2011 Cadillac STS?: It is recommended to use the OEM size P235/50R17 95S. Alternative sizes may affect speedometer accuracy, handling, and clearances.