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