brake sensor Lexus IS300 2017 / LEXUS 2017 IS200T,IS300,IS350 (OM53D76U) User Guide

5198-2. Steps to take in an emergency
8
When trouble arises
IS350/300/200t_U (OM53D76U)
*1: Parking brake engaged warning buzzer:→ P. 526
*2: Open door warning buzzer:
→ P. 524
*3: 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 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 unfast ened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Then, if the se at 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 soun ds to alert the front passenger that his or
her seat belt is not fastened. The buzzer so unds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 se conds, the buzzer will
sound intermittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different to ne for 90 more seconds.
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 so unds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 se conds, 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 24 more seconds.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), side impact se nsors (front), side impact sensors (rear),
driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occupant
classification system, “AIR BAG ON” indicat or light, “AIR BAG OFF” indicator light,
front passenger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags,
interconnecting wiring and power sources. (→P. 37)
■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 the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fu el tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.

628What to do if... (Troubleshooting)
IS350/300/200t_U (OM53D76U)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (→P. 518)
●The parking brake indicator is on
Is the parking brake released? ( →P. 186)
Depending on the situation, other types of warning buzzer may also sound.
(→ P. 516, 522)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (→ P. 70)
Do one of the following to de activate or stop the alarms:
• Unlock the doors or open the trunk.
• Turn the engine switch to ACCESSOR Y or IGNITION ON mode, or start
the engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. (→ P. 522)
●When a warning light turns on or a warning message is displayed, refer to
P. 516, 522.A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

641Alphabetical index
IS350/300/200t_U (OM53D76U)
Paddle shift switches ............................. 179
Parking assist sensors (intuitive parking assist) .................. 248
Parking brake.......................................... 186
Parking lights ........................................... 188 Light switch ............................................188
Replacing light bulbs ....................... 502
PCS (Pre-Collision System) .............. 214 Warning light ........................................ 517
Personal lights..........................................413 Wattage ................................................. 586
Pop-up display .......................................... 92
Power easy access system .................134
Power outlet ........................................... 422
Power steering (Electric power steering system)................................. 290 Warning light ........................................ 517
Power windows .......................................149 Door lock linked window operation ............................. 151
Jam protection function ................... 150
Operation ............................................... 149
Window lock switch.......................... 149
Pre-Collision System (PCS) .............. 214 Warning light ........................................ 517 Radar cruise control (dynamic
radar cruise control).........................236
Radiator...................................................... 471
Radio ..........................................................326
Rear passengers’ seat belt reminder lights .....................................518
Rear personal lights .............................. 413 Wattage ................................................ 586
Rear seats .................................................. 132 Fold down the seatback................... 132
Luggage security system.................. 118
Rear sunshade........................................423 Operation.............................................. 423
Reverse operation feature ............ 423
Rear turn signal lights ........................... 184 Replacing light bulbs ...................... 500
Turn signal lever ...................................184
Wattage ................................................ 586
Rear view mirror Inside rear view mirror...................... 144
Outside rear view mirrors ..............146
Rear window defoggers .................... 406
Refueling.................................................. 203 Capacity................................................. 576
Fuel types............................................... 576
If the fuel filler door cannot be opened .........................205
Opening the fuel tank cap ............205
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