Lexus NX 300h 2020 Owner's Manual page 366

364
6-3. Do-it-yourself maintenance
Tire pressure gauge
B
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.)