Lexus NX 300h 2020 Owner's Manual page 394

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7-2. Steps to take in an emergency
Master warning light (warning buzzer)
■
Warning light
Tire pressure warning light
■
Warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P.396
When the light comes on:
Low tire inflation pressure such as
 Natural causes (P.394)
 Flat tire (P.399)
 Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pressure
is adjusted, have the system checked by your Lexus
dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system (P.394)
 Have the system checked by your Lexus dealer.
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