2012 Lexus IS 350 User Guide - Page 408

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4-3. Do-it-yourself maintenance

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When to replace your vehicle±s tires

Tires should be replaced if:

●

You have tire damage such as cuts, splits, cracks deep enough to expose the

fabric or bulges indicating internal damage

●

A tire goes flat repeatedly or cannot be properly repaired due to the size or

location of a cut or other damage

If you are not sure, consult with your Lexus dealer.

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Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not registered,

the tire pressure warning system will not work properly. After driving for about 20

minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a

system malfunction.

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Tire life

Any tire over 6 years old must be checked by a qualified technician even if it has sel-

dom or never been used or damage is not obvious.

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If the tread wears down below 0.16 in. (4 mm) on snow tires

The effectiveness of snow tires is lost.

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Low profile tires (models not equipped with 16-inch tires)

Generally, low profile tires will wear more rapidly and tire grip performance will be

reduced on snowy and/or icy roads when compared to standard tires. Be sure to

use snow tires or tire chains

*

on snowy and/or icy roads and drive carefully at a

speed appropriate for road and weather conditions.

*

: Tire chains cannot be mounted on 18-inch tires.