Toyota PRIUS 2008, Quick Reference Manual

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5-2. Steps to take in an emergency
PRIUS_U_(L/O_0802)
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Front passenger detection sensor and passenger seat belt reminder
If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash, even if a passenger is not
sitting in the seat.
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When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning reset switch should not turn off the tire
pressure warning light.
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The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such
as natural air leaks or tire inflation pressure changes caused by temper-
ature. In this case, adjusting the tire inflation pressure will turn off the
warning light.
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If the tire pressure warning system is inoperative
The tire pressure warning system may become inoperative in the follow-
ing conditions:
(When the condition becomes normal, the system will work properly.)
l
If tires not equipped with tire pressure warning valves and transmit-
ters are used.
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If the ID code on the tire pressure warning valves and transmitters is
not registered.
l
If the tire inflation pressure is more than 73 psi (500 kPa, 5.1 kgf/cm
2
or bar).
The system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
l
If electronic devices or facilities using similar radio wave frequencies
are nearby.
l
If a radio set at similar frequencies is in use in the vehicle.
l
If a window tint that affects the radio wave signals is installed.
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If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
l
If non-genuine Toyota wheels are used.
l
If tire chains are used.