What size tires fit a 2018 Buick Regal?

The 2018 Buick Regal uses P225/55R17 95H as the OEM tire size.

What tire pressure should a 2018 Buick Regal have?

The recommended tire pressure for the 2018 Buick Regal is 33 PSI front and 33 PSI rear (cold).

Can I use a different tire size on my 2018 Buick Regal?

It is recommended to use the OEM size P225/55R17 95H. 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.

2018 Buick RegalTire Size & Pressure

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

Quick Answer

OEM Tire Size

P225/55R17 95H

Pressure (Front / Rear)

33 / 33 PSI

Load Index

This vehicle's factory manual

2018 Buick Regal: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.

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Other specs:All specs

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Frequently Asked Questions

What size tires fit a 2018 Buick Regal?: The 2018 Buick Regal uses P225/55R17 95H as the OEM tire size.
What tire pressure should a 2018 Buick Regal have?: The recommended tire pressure for the 2018 Buick Regal is 33 PSI front and 33 PSI rear (cold).
Can I use a different tire size on my 2018 Buick Regal?: It is recommended to use the OEM size P225/55R17 95H. Alternative sizes may affect speedometer accuracy, handling, and clearances.