Lexus ES350 Service Manual page 478

478
8-2. Steps to take in an emergency
Warning light
(Flashes)
(If equipped)
*
: Driver' s and front passenger' 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 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 30 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.
The front passenger' s seat belt warning 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 30 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.
SRS warning light
■
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), 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 pretensioner assem-
blies, airbags, interconnecting wiring and power sources. (P. 36)
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 passen-
ger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-
●
ing light may not operate properly.
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.
ES350_OM_OM33B64U_(U)
Warning light/Details/Actions
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes (P. 479)
• Flat tire (P. 485)
 Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by your Lexus dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system (P. 479)
 Have the system checked by your Lexus dealer.
"AFS OFF" indicator
Indicates a malfunction in the adaptive front-lighting system
 Have the vehicle inspected by your Lexus dealer immediately.
I n f o r ma t i o n P r o v i d e d b y :