What size tires fit a 2015 Buick Regal?

The 2015 Buick Regal uses P235/50R18 97V as the OEM tire size.

What tire pressure should a 2015 Buick Regal have?

The recommended tire pressure for the 2015 Buick Regal is 33 PSI front and 33 PSI rear (cold).

Can I use a different tire size on my 2015 Buick Regal?

It is recommended to use the OEM size P235/50R18 97V. 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.

2015 Buick RegalTire Size & Pressure

OEM spec from the factory service manual for the Base, 2.0L Eng VIN X, AWD variant.

Quick Answer

OEM Tire Size

P235/50R18 97V

Pressure (Front / Rear)

33 / 33 PSI

Load Index

Source: Factory service manual — 2015 Buick Regal Base, 2.0L Eng VIN X, AWD. View full manual section →

Other specs:All specs Oil Type Coolant

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Replacement Tires

P235/50R18 97V for Buick Regal

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Frequently Asked Questions

What size tires fit a 2015 Buick Regal?: The 2015 Buick Regal uses P235/50R18 97V as the OEM tire size.
What tire pressure should a 2015 Buick Regal have?: The recommended tire pressure for the 2015 Buick Regal is 33 PSI front and 33 PSI rear (cold).
Can I use a different tire size on my 2015 Buick Regal?: It is recommended to use the OEM size P235/50R18 97V. Alternative sizes may affect speedometer accuracy, handling, and clearances.