18-inch Wheels
Lexus RX — 18-inch Wheels Tire Pressure
For 18-inch wheels use on the Lexus RX, set cold pressures to 35 PSI front and 33 PSI rear.
18-inch Wheels cold pressure
Front
35
241 kPa
Rear
33
228 kPa
OEM spec
35/33 PSI
Tire size
235/55R20
Curb weight
1,950 kg
Category
crossover
18-inch is common OEM sizing — use factory pressures unless otherwise specified on the door sticker.
Community-tuned pressures based on OEM spec + typical use-case deltas. Always verify against your door-jamb sticker for your exact trim and load rating. Minimum safe pressure is 24 PSI for most passenger tires.
Other setups for this RX
FAQ
Frequently asked
- What tire pressure should I use for 18" driving in the Lexus RX?
- For 18-inch wheels use on the Lexus RX, set cold pressures to 35 PSI front and 33 PSI rear. 18-inch is common OEM sizing — use factory pressures unless otherwise specified on the door sticker.
- What is the OEM tire pressure for the Lexus RX?
- The factory cold pressure spec for the 2020–2024 Lexus RX is 35 PSI front / 33 PSI rear. Always use the door-jamb sticker for your specific trim.
- Is switching to 18-inch wheels safe on the Lexus RX?
- Wheel size changes are fine as long as the overall tire diameter stays within ±3% of the OEM 235/55R20. Pressures typically stay close to OEM; the 35/33 setting above accounts for the small sidewall change.
- What is 35 PSI in bar or kPa?
- 35 PSI = 2.4 bar = 241 kPa. The rear 33 PSI = 2.3 bar.
Related tools