Lexus RX350 2023, Manual

Page: 456 / 604

456
6-3. Do-it-yourself maintenance
1 Remove the tire valve cap.
2
Press the tip of the tire pressure
gauge onto the tire valve.
3 Read the pressure using the gauge
gradations.
4
If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.
5
After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.
6
Put the tire valve cap back on.
■ Tire inflation pressure check interval
You should check tire inflation pressure
every two weeks, or at least once a month.
Do not forget to check the spare.
■
Effects of incorrect tire inflation pres-
sure
Driving with incorrect tire inflation pressure
may result in the following:
●
Reduced fuel economy
●
Reduced driving comfort and poor han-
dling
●
Reduced tire life due to wear
●
Reduced safety
●
Damage to the drive train
If a tire needs frequent inflating, have it
checked by your Lexus dealer.
■ Instructions for checking tire inflation
pressure
When checking tire inflation pressure,
observe the following:
● Check only when the tires are cold.
If your vehicle has been parked for at
least 3 hours or has not been driven for
more than 1 mile or 1.5 km, you will get an
accurate cold tire inflation pressure read-
ing.
● Always use a tire pressure gauge.
It is difficult to judge if a tire is properly
inflated based only on its appearance.
● It is normal for the tire inflation pressure
to be higher after driving as heat is gen-
erated in the tire. Do not reduce tire infla-
tion pressure after driving.
● Never exceed the vehicle capacity
weight.
Passengers and luggage weight should
be placed so that the vehicle is balanced.
WARNING
■ Proper inflation is critical to save tire
performance
Keep your tires properly inflated.
If the tires are not properly inflated, the
following conditions may occur which
could lead to an accident resulting in
death or serious injury:
● Excessive wear
● Uneven wear
● Poor handling
● Possibility of blowouts resulting from
overheated tires
● Air leaking from between tire and
wheel
● Wheel deformation and/or tire dam-
age
● Greater possibility of tire damage
while driving (due to road hazards,
expansion joints, sharp edges in the
road, etc.)