Operation Manual

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8-2. Steps to take in an emergency
8
When trouble arises
 The tire pressure warning light may come on due to natural causes
(vehicles with a tire pressure warning system)
The tire pressure warning light may come on due to natural causes such as
natural air leaks and tire inflation pressure changes caused by temperature.
In this case, adjusting the tire inflation pressure will turn off the warning light
(after a few minutes).
 When a tire is replaced with a spare tire (vehicles with a tire pressure
warning system)
The spare tire is not equipped with a tire pressure warning valve and trans-
mitter. If a tire goes flat, the tire pressure warning light will not turn off even
though the flat tire has been replaced with the spare tire. Replace the spare
tire with the repaired tire and adjust the tire inflation pressure. The tire pres-
sure warning light will go off after a few minutes.
 If the tire pressure warning system is not functioning (vehicles with a
tire pressure warning system)
The tire pressure warning system will be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
 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
 If the tire inflation pressure is 500 kPa (5.1 kgf/cm
2
or bar, 73 psi) or higher
The tire pressure warning system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
 If electronic devices or facilities using similar radio wave frequencies are
nearby
 If a radio set at a similar frequency is in use in the vehicle
 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 non-genuine Toyota wheels are used (Even if you use Toyota wheels, the
tire pressure warning system may not work properly with some types of
tires.)
 If tire chains are used
 If the tire pressure warning light frequently comes on after blinking for 1
minute (vehicles with a tire pressure warning system)
If the tire pressure warning light frequently comes on after blinking for 1 min-
ute when the engine switch is turned on, have it checked by any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional.