Heavy Load / Towing
Lexus IS — Heavy Load / Towing Tire Pressure
For heavy load / towing use on the Lexus IS, set cold pressures to 38 PSI front and 43 PSI rear.
Heavy Load / Towing cold pressure
Front
38
262 kPa
+3 vs OEM
Rear
43
296 kPa
+5 vs OEM
OEM spec
35/38 PSI
Tire size
225/40R18
Curb weight
1,595 kg
Category
sedan
When loaded to GVWR or towing, increase rear PSI more than front to keep the load-carrying capacity within spec.
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 load driving in the Lexus IS?
- For heavy load / towing use on the Lexus IS, set cold pressures to 38 PSI front and 43 PSI rear. When loaded to GVWR or towing, increase rear PSI more than front to keep the load-carrying capacity within spec.
- 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.
- What about towing with the Lexus IS?
- Towing or carrying heavy loads shifts weight rearward. Using 38 PSI front / 43 PSI rear keeps load-carrying capacity within spec and prevents rear sidewall overheating.
- What is 38 PSI in bar or kPa?
- 38 PSI = 2.6 bar = 262 kPa. The rear 43 PSI = 3.0 bar.
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