Toyota 2014 Sienna Manual page 751

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SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (rear),
driver's seat position sensor, driver's seat belt buckle switch, front passen-
ger occupant classification system (ECU and sensors), "AIR BAG ON" indi-
cator light, "AIR BAG OFF" indicator light, front passenger's seat belt buckle
switch, seat belt pretensioner assemblies, inflators, interconnecting wiring
and power sources. (P. 170)
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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 sensor may cause the warning light to flash even if a passen-
ger is not sitting in the seat.
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If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
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Electric power steering system warning light (warning buzzer)
When the 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.
SIENNA_OM_OM45483U_(U)
5-2. Steps to take in an emergency
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