Lexus LS460 Owners Book page 713

5-2. Steps to take in an emergency
Front passenger detection sensor and passenger seat belt reminder
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If luggage is placed on the front passenger seat, the front passenger detection
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sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger, and the
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warning light may not operate properly.
When the tire pressure warning light comes on
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Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch does not turn off the tire pressure warning light.
The tire pressure warning light may turn on due to natural causes
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The tire pressure warning light may turn on due to natural causes such as natural air
leaks or tire inflation pressure changes caused by temperature. In this case, adjust-
ing 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 also equipped with the 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, even though the flat tire is replaced with the spare tire,
the tire pressure warning light does not turn off. Replace the spare tire with the
repaired tire and adjust the proper tire inflation pressure. The tire pressure warning
light will turn off after a few minutes.
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