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New tread
A
Worn tread
B
Treadwear indicator
C
The location of treadwear indicators is
shown by a "TWI" or
mark, etc.,
molded into the sidewall of each tire.
Replace the tires if the treadwear indica-
tors are showing on a tire.
When to replace your vehicle's tires
■
Tires should be replaced if:
●
The treadwear indicators are showing on
a tire.
You have tire damage such as cuts, splits,
●
cracks deep enough to expose the fabric,
and bulges indicating internal damage.
●
A tire goes flat repeatedly or cannot be
properly repaired due to the size or loca-
tion of a cut or other damage.
If you are not sure, consult with your Lexus
dealer.
Tire life
■
Any tire over 6 years old must be checked
by a qualified technician even if it has sel-
8-5. Tire maintenance
dom or never been used or damage is not
obvious.
■
Maximum load of tire
Check that the number given by dividing
the maximum load by 1.10 of the replace-
ment tire is greater than 1/2 of the Gross
Axle Weight Ratings (GAWR) of either the
front axle or the rear axle, whichever is
greater.
For the GAWR, see the Certification Label.
For the maximum load of the tire, see the
load limit at maximum cold tire inflation
pressure mentioned on the sidewall of the
tire. (P.571)
Tire types
■
●
Summer tires
Summer tires are high-speed performance
tires best suited to highway driving under
dry conditions. Since summer tires do not
have the same traction performance as
snow tires, summer tires are inadequate for
driving on snow-covered or icy roads. For
driving on snow-covered roads or icy
roads, the use of snow tires is recom-
mended. When installing snow tires, be
sure to replace all four tires.
●
All season tires
All season tires are designed to provide
better traction in snow and to be adequate
for driving in most winter conditions as well
as for use year-round. All season tires,
however, do not have adequate traction
performance compared with snow tires in
heavy or loose snow. Also, all season tires
fall short in acceleration and handling per-
formance compared with summer tires in
highway driving.
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