518
7-3. Do-it-yourself maintenance
Your vehicle is equipped with a tire pressure warning system that uses tire pres-
sure warning valves and transmitters to detect low tire inflation pressure before
serious problems arise.
● If the tire pressure drops below a predetermined level, the driver is warned by
a screen display and a warning light. (→P. 567, 583)
● The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. (→P. 109, 117)
The illustration used is intended as an
example, and may differ from the image
that is actually displayed on the multi-
information display.
◆ Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and transmitters
must also be installed.
When new tire pressure warning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer and the tire
pressure warning system must be initialized. Have tire pressure warning valve
and transmitter ID codes registered by your Lexus dealer. (→P. 519)
◆ Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following circum-
stances:
● When rotating the tires.
● When the tire inflation pressure is changed such as when changing travel-
ing speed.
● When changing the tire size.
When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.
Tire pressure warning system
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