2012 Lexus HS 250h Owners Manual - Page 504

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SRS warning light

This warning light system monitors the airbag sensor assembly, front airbag sensors,

side and curtain shield airbag sensors, curtain shield and rear side airbag sensors,

driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occu-

pant classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indicator

light, front passenger’s seat belt buckle switch, seat belt pretensioner assemblies,

inflators, interconnecting wiring and power sources. (

→

P. 109)

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Front passenger detection sensor, passenger seat belt reminder and warning

buzzer

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If luggage is placed on the front passenger seat, the front passenger detection

sensor may cause the warning light to flash and the warning buzzer to sound

even if a passenger is not sitting in the seat.

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If a cushion is placed on the seat, the sensor may not detect a passenger, and the

warning light may not operate properly.

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Electric power steering system warning light (warning buzzer)

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 warn-

ing buzzer may sound.

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If the malfunction indicator lamp comes on while driving

First check the following:

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Is the fuel tank empty?

If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?

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.

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When the tire pressure warning light comes on

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.

5

507

5-2. Steps to take in an emergency