Toyota Corolla Instruction Manual page 504

504
7-2. Steps to take in an emergency
 When the tire pressure warning light comes on (vehicles with a tire pres-
sure warning system)
Check the tire inflation pressure and adjust to the appropriate level. Pushing
the tire pressure warning reset switch will not turn off the tire pressure warn-
ing light.
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)
Vehicles with a 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
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.
Vehicles with a 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.
Corolla_TMMT_EE (OM12F04E)