Lexus GS450h Owner's Manual page 428

428
6-3. Do-it-yourself maintenance
NOTICE
Repairing or replacing tires, wheels, tire pressure warning valves, transmitters and
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tire valve caps (vehicles with the tire pressure warning system)
When removing or fitting the wheels, tires or the tire pressure warning valves and
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transmitters, contact any authorized Lexus retailer or Lexus authorized repairer, or
any reliable repairer as the tire pressure warning valves and transmitters may be dam-
aged if not handled correctly.
Make sure to install the tire valve caps. If the tire valve caps are not installed, water
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could enter the tire pressure warning valves and the tire pressure warning valves
could be bound.
When replacing tire valve caps, do not use tire valve caps other than those specified.
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The cap may become stuck.
To avoid damage to the tire pressure warning valves and transmitters (vehicles with
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the tire pressure warning system)
When a tire is repaired with liquid sealants, the tire pressure warning valve and trans-
mitter may not operate properly. If a liquid sealant is used, contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer or other qualified
service shop as soon as possible. After use of liquid sealant, make sure to replace the
tire pressure warning valve and transmitter when repairing or replacing the tire.
(P. 418)
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 cushioning
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 (except 225/50R17 tires)
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Low profile tires may cause greater damage than usual to the tire wheel when sustain-
ing 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 be
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damaged more severely.
Avoid potholes, uneven pavement, curbs and other road hazards. Failure to do so
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may lead to severe tire and wheel damage.
If tire inflation pressure of each tire becomes low while driving
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Do not continue driving, or your tires and/or wheels may be ruined.
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