2010 Lexus SC 430 Owners Manual - Page 244

247

4-3. Do-it-yourself maintenance

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Tire types

1 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 perfor-

mance 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.

2 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

performance compared with summer tires in highway driving.

3 Snow tires

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. (

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P. 149)

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Initializing the tire pressure warning system

Initialize the tires with the tire inflation pressure adjusted to the specified level.

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If you push the tire pressure warning reset switch accidentally

If initialization is performed, adjust the tire inflation pressure to the specified level

and initialize the tire pressure warning system again.