19-inch Wheels
Lexus IS — 19-inch Wheels Tire Pressure
For 19-inch wheels use on the Lexus IS, set cold pressures to 36 PSI front and 39 PSI rear.
19-inch Wheels cold pressure
Front
36
248 kPa
+1 vs OEM
Rear
39
269 kPa
+1 vs OEM
OEM spec
35/38 PSI
Tire size
225/40R18
Curb weight
1,595 kg
Category
sedan
Larger rims with shorter sidewalls benefit from 1 extra PSI to protect against pothole damage.
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 IS
FAQ
Frequently asked
- What tire pressure should I use for 19" driving in the Lexus IS?
- For 19-inch wheels use on the Lexus IS, set cold pressures to 36 PSI front and 39 PSI rear. Larger rims with shorter sidewalls benefit from 1 extra PSI to protect against pothole damage.
- What is the OEM tire pressure for the Lexus IS?
- The factory cold pressure spec for the 2021–2024 Lexus IS is 35 PSI front / 38 PSI rear. Always use the door-jamb sticker for your specific trim.
- Is switching to 19-inch wheels safe on the Lexus IS?
- Wheel size changes are fine as long as the overall tire diameter stays within ±3% of the OEM 225/40R18. Pressures typically stay close to OEM; the 36/39 setting above accounts for the small sidewall change.
- What is 36 PSI in bar or kPa?
- 36 PSI = 2.5 bar = 248 kPa. The rear 39 PSI = 2.7 bar.
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