Lexus is300 2021, Service Manual

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7-2. Steps to take in an emergency
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Electric power steering system warning light (warning buzzer)
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Low fuel level warning light
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Driver’s and front passenger’s seat belt reminder light (warning buzzer)
*
*
: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer sounds. If
the seat belt is still unfastened, the buzzer sounds intermittently for a certain period of time
after the vehicle reaches a certain speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front passenger that his
or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds intermittenly
for a certain period of time after the vehicle reaches a certain speed.
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Rear passengers’ seat belt reminder lights
*1
(warning buzzer)
*2
Warning light Details/Actions
(red)
or
(yellow)
Indicates a malfunction in the EPS (Electric Power Steering) system

Have the vehicle inspected by your Lexus dealer immediately.
Warning light Details/Actions
Indicates that remaining fuel is approximately 2.6 gal. (10 L, 2.2 Imp.
gal.) or less

Refuel the vehicle.
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.