Lexus GS 450h 2008 Owner's Manual page 446

4-3. Do-it-yourself maintenance
NOTICE
Repairing or replacing tires, wheels and tire pressure warning valves and trans-
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mitters
When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.
To avoid damaging the tire pressure warning valves and transmitters
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Do not use liquid sealants on flat tires.
Driving on rough roads
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Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushion-
ing ability of the tires. In addition driving on rough roads may cause damage to the
tires themselves, as well as the vehicle' s wheels and body.
Low profile tires (245/40R18, P245/40R18 and 245/40ZR18 tires)
■
Low profile tires may cause greater damage than usual to the tire wheel when
receiving impact from the road surface. Therefore pay attention to the following:
Be sure to use proper tire inflation pressure. If tires are under-inflated, they may
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be damaged more severely.
Avoid hot holes, uneven pavement, curbs and other road hazards. Failure to do so
●
can lead to severe tire and wheel damage.
If tire inflation pressures become low while driving
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Do not continue driving, or your tires and/or wheels may be ruined.
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