2010 Lexus IS 250 Owners Manual - Page 499

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4-3. Do-it-yourself maintenance

CAUTION

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Tire pressure warning system operation

The tire pressure warning system may not provide warning immediately if a tire

bursts or if sudden air leakage occurs.

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When inspecting or replacing tires

Observe the following precautions to prevent accidents. Failure to do so may cause

damage to parts of the drive train, as well as dangerous handling characteristics,

which may lead to an accident resulting in death or serious injury.

●

Do not mix tires of different makes, models or tread patterns. Also, do not mix

tires of remarkably different treadwear.

●

Do not use tire sizes other than those recommended by Lexus.

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Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).

●

Do not mix summer, all season and winter tires.

●

Do not use tires that have been used on another vehicle.

Do not use tires if you do not know how they were used previously.

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When initializing the tire pressure warning system

Do not press the satellite switch without first adjusting the tire inflation pressure to

the specified level. Otherwise, the tire pressure warning light may not come on

even if the tire inflation pressure is low, or it may come on when the tire inflation

pressure is actually normal.

NOTICE

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Repairing or replacing tires, wheels, tire pressure warning valves and transmit-

ters and tire valve caps

●

When removing or fitting the wheels, tires or the tire pressure warning valves and

transmitters, contact your Lexus dealer as the tire pressure warning valves and

transmitters may be damaged if not handled correctly.

●

When replacing tire valve caps, do not use tire valve caps other than those speci-

fied. The cap may become stuck.