• A tire has been replaced with a tire that is not of the specified size.
• Tire chains, etc. are 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 tires not equipped with 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.
● Performance may be affected in the following situations.
•
Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise.
•
When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device.
If tire position information is not correctly displayed due to the radio wave conditions,
the display may be corrected by changing the location of the vehicle as the radio wave
conditions may change.
● When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
● When tire inflation pressure declines rapidly for example when a tire has burst, the not
to able detect.
Related Links
Tire pressure(P. 366)
Tire pressure warning light (warning buzzer)(P. 663)
Installing tire pressure warning valves and transmitters
NOTICE
■ Repairing or replacing tires, wheels, tire pressure warning valves, transmitters and
tire valve caps
● When removing or fitting the wheels, tires or the tire pressure warning valves and
transmitters, contact any authorized Lexus retailer or Lexus authorized repairer, or
any reliable repairer as the tire pressure warning valves and transmitters may be
damaged if not handled correctly.
8-5. Tire maintenance
625
8
Maintenance and care
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