Lexus LC500 2017 Owner's Manual page 339

Driver's and front passenger's seat belt reminder light (warning buzzer)
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Warning light
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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 fas-
tened. Once the engine switch <power switch> is turned to IGNITION ON mode <ON
mode>, 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 6 seconds. Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 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 still unfastened after 24 seconds, the buzzer will sound inter-
mittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a dif-
ferent tone for 90 more seconds.
Rear passengers' seat belt reminder lights (warning buzzer
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Warning light
*1
: Rear passenger's seat belt buzzer:
The rear passenger's seat belt buzzer sounds to alert the rear passenger that his or her seat
belt is not fastened. The buzzer sounds for 6 seconds if the vehicle reaches a speed of 12
mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 24 more seconds.
*2
: This light illuminates on the center panel.
Master warning light (warning buzzer)
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Warning light
LC500_LC500h_OM_OM11405U_(U)
7-2. Steps to take in an emergency
Warning light/Details/Actions
Warns the driver and/or front passenger to fasten their seat belts
→ Fasten the seat belt.
If the front passenger's seat is occupied, the front passenger's seat
belt also needs to be fastened to make the warning light (warning
buzzer) turn off.
Warning light/Details/Actions
Warns the rear passengers to fasten their seat belts
→ Fasten the seat belt.
Warning light/Details/Actions
A buzzer sounds and the warning light comes on and flashes to indicate
that the master warning system has detected a malfunction.
→ P.344
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