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4-3. Do-it-yourself maintenance
■ Tire inflation pressure check interval
You should check the tire inflation pressure every two weeks, or at least once a
month.
Do not forget to check the air pressure of the spare tire, if so equipped. The inflation
pressure for the compact spare tire should be 60 psi (420 kPa, 4.3 kgf/cm
2
, 4.2
bar). (P.30 7 )
■ Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
● Wasting fuel
● Reducing driving comfort and tire life
● Making your vehicle less safe to drive
If a tire needs frequent refilling, have it checked by your Lexus dealer.
■ Instructions for checking tire inflation pressure
When checking tire inflation pressure, observing the following:
● Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours and has not been driven for
more than 1 mile or 1.5 km since, you will get an accurate cold tire inflation pres-
sure reading.
● Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pressures
that are even just a few pounds off can degrade ride and handling.
● Do not bleed or reduce tire inflation pressure after driving.
It is normal for the tire inflation pressure to be higher after driving.
● Never exceed the vehicle weight capacity.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.
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