Toyota Tacoma 2018 Owner's Manual page 569

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: Driver's seat belt buzzer:
The driver's seat belt buzzer sounds to alert the driver that his or her seat
belt is not fastened. Once the engine switch is turned to the "ON" position
(vehicles without a smart key system) or IGNITION ON mode (vehicles
with a smart key system), the buzzer sounds for 6 seconds. If the vehicle
reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If the seat
belt is still unfastened after 24 seconds, the buzzer will sound intermittently
for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
Front passenger's seat belt buzzer:
The front passenger's seat belt buzzer sounds to alert the front passenger
that his or her seat belt is not fastened. The buzzer sounds once if the
vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is sill unfas-
tened after 24 seconds, the buzzer will sound intermittently for 10 seconds.
Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 20 more seconds.
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: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately
3 mph (5 km/h) or more.
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: If equipped
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SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front), side impact sensors (rear), driver's seat
position sensor, driver's seat belt buckle switch, front passenger occupant
classification system (ECU and sensors), "AIR BAG ON" indicator light, "AIR
BAG OFF" indicator light, front passenger's seat belt buckle switch, seat belt
pretensioners assemblies, airbags, interconnecting wiring and power
sources. (→P. 36)
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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 detec-
tion 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.
8-2. Steps to take in an emergency
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