What size tires fit a 2015 Scion tC?

The 2015 Scion tC uses P225/45R18 91W as the OEM tire size.

What tire pressure should a 2015 Scion tC have?

The recommended tire pressure for the 2015 Scion tC is 33 PSI front and 30 PSI rear (cold).

Can I use a different tire size on my 2015 Scion tC?

It is recommended to use the OEM size P225/45R18 91W. 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 Scion tCTire Size & Pressure

OEM spec from the factory service manual for the Automatic Trans variant.

Quick Answer

OEM Tire Size

P225/45R18 91W

Pressure (Front / Rear)

33 / 30 PSI

Load Index

Source: Factory service manual — 2015 Scion tC Automatic Trans. View full manual section →

Other specs:All specs Oil Type Coolant

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P225/45R18 91W for Scion tC

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Frequently Asked Questions

What size tires fit a 2015 Scion tC?: The 2015 Scion tC uses P225/45R18 91W as the OEM tire size.
What tire pressure should a 2015 Scion tC have?: The recommended tire pressure for the 2015 Scion tC is 33 PSI front and 30 PSI rear (cold).
Can I use a different tire size on my 2015 Scion tC?: It is recommended to use the OEM size P225/45R18 91W. Alternative sizes may affect speedometer accuracy, handling, and clearances.