What size tires fit a 2008 Cadillac DTS?

The 2008 Cadillac DTS uses P235/55R17 98H as the OEM tire size.

What tire pressure should a 2008 Cadillac DTS have?

The recommended tire pressure for the 2008 Cadillac DTS is 30 PSI front and 30 PSI rear (cold).

Can I use a different tire size on my 2008 Cadillac DTS?

It is recommended to use the OEM size P235/55R17 98H. Alternative sizes may affect speedometer accuracy, handling, and clearances.

Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2008 Cadillac DTSTire Size & Pressure

OEM spec from the factory service manual for the 4.6 9 variant.

Quick Answer

OEM Tire Size

P235/55R17 98H

Pressure (Front / Rear)

30 / 30 PSI

Load Index

Source: Factory service manual — 2008 Cadillac DTS 4.6 9. View full manual section →

Other specs:All specs Oil Type Coolant

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Frequently Asked Questions

What size tires fit a 2008 Cadillac DTS?: The 2008 Cadillac DTS uses P235/55R17 98H as the OEM tire size.
What tire pressure should a 2008 Cadillac DTS have?: The recommended tire pressure for the 2008 Cadillac DTS is 30 PSI front and 30 PSI rear (cold).
Can I use a different tire size on my 2008 Cadillac DTS?: It is recommended to use the OEM size P235/55R17 98H. Alternative sizes may affect speedometer accuracy, handling, and clearances.