■ Front passenger detection sensor, seat belt reminder and warning buzzer
● 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.
● If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
Rear passengers’ seat belt reminder lights (warning buzzer)
Condition Cause / Remedy
(Vehicles without a head-up display)
(Vehicles with a head-up display)
Warns the rear passengers to fasten their
seat belts
Fasten the seat belt.
INFORMATION
■ Rear passengers’ seat belt warning buzzer
The rear passengers’ seat belt warning buzzer sounds to alert the rear passenger that
his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds
intermittently for a certain period of time after the vehicle reaches a certain speed.
Tire pressure warning light (warning buzzer)
Condition
Cause / Remedy
When the light comes on after blinking for approximately 1 minute (a
buzzer does not sounds):
Malfunction in the tire pressure warning system
Have the system checked by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
When the light comes on (a buzzer sounds):
Low tire inflation pressure from natural causes
After the temperature of the tires has lowered sufficiently, check the
inflation pressure of each tire and adjust them to the specified level.
9-2. If a warning light illuminates/flashes or a warning message is displayed on the meter
663
9
When trouble arises
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