Lexus ES 300h User Manual page 508

508
8-2. Steps to take in an emergency
Front passenger detection sensor, seat belt reminder and warning buzzer
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If luggage is placed on the front passenger seat, the front passenger detection sensor
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may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-
●
ing light may not operate properly.
Electric power steering system warning light (warning buzzer)
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When the 12-volt battery charge becomes insufficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning buzzer
may sound.
If the malfunction indicator lamp comes on while driving
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First check the following:
Is the fuel tank empty?
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If it is, fill the fuel tank immediately.
Is the fuel tank cap loose?
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If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon as
possible.
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 will not turn off the tire pressure warning light.
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 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
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The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. 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.
Conditions that the tire pressure warning system may not function properly
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→P. 469
If the tire pressure warning light frequently comes on after blinking for 1 minute
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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 your Lexus dealer.
Warning buzzer
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In some cases, the buzzer may not be heard because of noisy place or an audio sound.
ES300h_OM_OM33C75U_(U)