580
6-3. Do-it-yourself maintenance
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 driving and
changing the radio wave conditions.
● When the vehicle is parked, the time
taken for the warning to start or go off
could be extended.
● When tire inflation pressure declines rap-
idly for example when a tire has burst, the
warning may not function.
When replacing tires or wheels, tire
pressure warning valves and transmit-
ters must also be installed.
When new tire pressure warning valves
and transmitters are installed, new ID
codes must be registered in the tire pres-
sure warning computer. (P.583)
■ When replacing the tires and wheels
If the ID code of the tire pressure warning
valve and transmitter is not registered, the
tire pressure warning system will not work
properly. After driving for about 20 min-
utes, the tire pressure warning light blinks
for approximately 1 minute and stays on to
indicate a system malfunction.
■ When to register the position of
each wheel
It is necessary to register the position
of each wheel after performing a tire
rotation.
Wheel position registration can be
performed by oneself. Wheel position
registration is performed by driving
forward with moderate left and right
turns. However, depending on the
driving conditions and driving environ-
ment, registration may take some time
to complete.
■ Registering the position of each
wheel
1 Park the vehicle in a safe place, turn
the power switch off and wait 15
minutes or more.
2 Start the hybrid system.
Installing tire pressure warning
valves and transmitters
■ Repairing or replacing tires, wheels,
tire pressure warning valves, trans-
mitters 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 warn-
ing valves and transmitters may be
damaged if not handled correctly.
● Make sure to install the tire valve caps.
If the tire valve caps are not installed,
water 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. The cap may become stuck.
Registering the position of each
wheel
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