Toyota PRIUS Owner's Manual page 594

594
7-2. Steps to take in an emergency
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When a tire is replaced with a spare tire (vehicles with the tire pressure
warning system)
Vehicles with compact spare tire: The compact spare tire is not equipped with
a tire pressure warning valve and transmitter. If a tire goes flat, the tire pres-
sure 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 pressure warning light will go off after a few
minutes.
Vehicles with full-size spare tire: The spare tire is also equipped with a tire
pressure warning valve and transmitter. The tire pressure warning light will
turn on if the tire inflation pressure of the spare tire is low. 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 pressure warning light will go off
after a few minutes.
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Conditions that the tire pressure warning system may not function prop-
erly (if equipped)
→P. 542
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If the tire pressure warning light frequently comes on after blinking for
1 minute (if equipped)
If the tire pressure warning light frequently comes on after blinking for
1 minute when the power switch is turned to ON mode, have it checked by
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
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Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location
or audio sound.
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