Checking And Replacing Tires - Lexus SC 430 2002 Manual

Before storing radial, snow or studded tires, mark the direction
of rotation and be sure to install them in the same direction
when using them again. Tires should be stored in a cool dry
place.

CHECKING AND REPLACING TIRES

When to replace your tires
63sa02a
" 1 New tread
2 Tread wear indicator
3 Worn tread
Replace the tires when the tread wear indicators show.
The location of the tread wear indicators is shown by the
Δ
"TWI" or " " marks molded on the sidewall of each tire.
The tires on your Lexus have built−in tread wear indicators to
help you know when the tires need replacement. When the
tread depth wears to 1.6 mm (0.06 in.) or less, the indicators
will appear. If you can see the indicators in two or more
adjacent grooves, the tire should be replaced.
Your vehicle is equipped with 245/40ZR18 tires: Your
Lexus has been fitted with specially developed tires which
provide exceptional dynamic performance under general road
conditions. However your riding comfort may worsen a little
and road noise may increase during driving. Riding comfort
and road noise with the run−flat tires may be a little worse than
that with the standard tires. You may also notice that your tires
will wear more rapidly and tire grip performance will be reduced
on the snowy and/or icy roads when compared to high aspect
ratio tires, etc. Be sure to have snow tires or tire chains on the
snowy and/or icy roads and drive carefully with the speed
appropriate for road conditions.
CHASSIS
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