The Tire Pressure Warning Light May Come On Due To Natural Causes; When A Tire Is Replaced With A Spare Tire - Toyota 4RUNNER Owner's Manual

The tire pressure warning light may come on due to natural causes

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The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. 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

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The 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.
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5-2. Steps to take in an emergency
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