Tire Types; Summer Tires; All Season Tires - Lexus LX 570 2016 Service Manual

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6-3. Do-it-yourself maintenance

Tire types

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Summer tires

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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 recommended.
When installing snow tires, be sure to replace all four tires.

All season tires

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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, how-
ever, 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 perfor-
mance compared with summer tires in highway driving.
Snow tires
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For driving on snow-covered roads or icy roads, we recommend using snow tires. If
you need snow tires, select tires of the same size, construction and load capacity as the
originally installed tires. Since your vehicle has radial tires as original equipment, make
sure your snow tires also have radial construction. Do not install studded tires without
first checking local regulations for possible restriction. Snow tires should be installed
on all wheels. (P. 384)
Initializing the tire pressure warning system
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Initialize the tire pressure warning system with the tire inflation pressure adjusted to the
specified level.
If the tread on snow tires wears down below 0.16 in. (4 mm)
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The effectiveness of the tires as snow tires is lost.
If you press the tire pressure warning reset switch accidentally
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If initialization is performed, adjust the tire inflation pressure to the specified level and ini-
tialize the tire pressure warning system again.
Situations in which the tire pressure warning system may not operate properly
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In the following cases, the tire pressure warning system may not operate properly.
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• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If the spare tire is in a location subject to poor radio wave signal reception.
• If a large metallic object which can interfere with signal reception is put near the
spare tire.
• If tires not equipped with the tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered
in the tire pressure warning computer.
LX570_OM_OM60N01U_(U)