What size tires fit a 2009 Lexus RX?

The 2009 Lexus RX uses P235/55R18 99V as the OEM tire size.

What tire pressure should a 2009 Lexus RX have?

The recommended tire pressure for the 2009 Lexus RX is 30 PSI front and 30 PSI rear (cold).

Can I use a different tire size on my 2009 Lexus RX?

It is recommended to use the OEM size P235/55R18 99V. 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.

2009 Lexus RXTire Size & Pressure

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

Quick Answer

OEM Tire Size

P235/55R18 99V

Pressure (Front / Rear)

30 / 30 PSI

Load Index

Source: Factory service manual — 2009 Lexus RX AWD. View full manual section →

Other specs:All specs Oil Type Coolant

Shop Tires

Replacement Tires

P235/55R18 99V for Lexus RX

Search Amazon →

Tool

Digital Tire Pressure Gauge

Search Amazon →

Frequently Asked Questions

What size tires fit a 2009 Lexus RX?: The 2009 Lexus RX uses P235/55R18 99V as the OEM tire size.
What tire pressure should a 2009 Lexus RX have?: The recommended tire pressure for the 2009 Lexus RX is 30 PSI front and 30 PSI rear (cold).
Can I use a different tire size on my 2009 Lexus RX?: It is recommended to use the OEM size P235/55R18 99V. Alternative sizes may affect speedometer accuracy, handling, and clearances.