Toyota Grand Highlander 2024 Manual page 447

• If the tire inflation pressure is
extremely higher than the speci-
fied level.
• If tires not equipped with tire pres-
sure warning valves and transmit-
ters 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 facil-
ity 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 warning may
not operate.
Installing tire pressure
warning valves and trans-
mitters
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
6-3. Do-it-yourself maintenance
warning computer. (P.451)
Replacing 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. In this
case, after driving for about 20 min-
utes, the tire pressure warning light
blinks for 1 minute and stays on to
indicate a system malfunction.
NOTICE
Repairing or replacing tires,
■
wheels, tire pressure warn-
ing valves, transmitters and
tire valve caps
When removing or fitting the
●
wheels, tires or the tire pressure
warning valves and transmit-
ters, contact your Toyota dealer
as the tire pressure warning
valves and transmitters may be
damaged if not handled cor-
rectly.
Make sure to install the tire
●
valve caps. If the tire valve caps
are not installed, water could
enter the tire pressure warning
valves, corrode the valve, and
cause sticking and air leaks.
When replacing tire valve caps,
●
do not use tire valve caps other
than those specified. The cap
may become stuck.
To avoid damage to the tire
■
pressure warning valves and
transmitters
When a tire is repaired with liquid
sealants, the tire pressure warn-
ing valve and transmitter may not
operate properly. If a liquid seal-
ant is used, contact your Toyota
dealer or other qualified service
shop as soon as possible. Make
sure to replace the tire pressure
warning valve and transmitter
when replacing the tire. (P.447)
447
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