2007 LEXUS LX470 warning light

298
4-3. Do-it-yourself maintenance
■If you push the tire pressure reset switch accidentally
If initialization is performed, adjust the tire inflation pressure to the specified level
and initialize the system again.
■When the initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases,
the settings have not been recorded and the system will not operate properly. If
repeated attempts to record tire inflation pressure settings are unsuccessful, have
the vehicle inspected by your Lexus dealer.
●When operating the tire pressure warn ing reset switch, the warning light does
not flash.
●After driving for a certain period of time since the initialization has been com-
pleted, the warning light flashes.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.

300
4-3. Do-it-yourself maintenance
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents. Failure to do so may cause
damage to parts of the drive train, as well as dangerous handling characteristics,
which may lead to fatal or injury accidents.
●Do not mix tires of different makes, models, tread patterns or tread wear.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix radial, bias-belted, or bias-ply tires.
●Do not mix summer, all season and winter tires.
■When initializing the tire pressure warning system
Do not push the reset switch without first adjusting the tire inflation pressure to the
specified level. Otherwise, the tire pressure warning light may not come on even if
the tire inflation pressure is low, or it may come on when the tire inflation pressure is
actually normal.
NOTICE
■Repairing or replacing tires, wheels and tire pressure warning valves and trans-
mitters
●When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and
transmitter may be damaged if not handled correctly.
●When replacing tires, make sure also to replace the tire pressure warning valve
and transmitter grommets.
■Do not use puncture sealant sprays to repair flats
Puncture sealant sprays may damage tire pressure warning valves and transmitters.

When trouble arises5
327
5-1. Essential information............ 328If your vehicle needs to be towed .......................................... 328
If you think something is wrong .......................................... 333
Fuel pump shut off system ..... 334
Event data recorder ................. 335
5-2. Steps to take in an emergency............................ 337
If a warning light turns on or a warning buzzer sounds...
......... 337
If you have a flat tire.................. 346
If the engine will not start ....... 357
If the shift lever cannot be shifted from P........................... 358
If you lose your keys ................. 359
If the battery is discharged .... 360
If your vehicle overheats ........ 363
If the vehicle becomes stuck ............................................ 366

5
When trouble arises
337
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehi cle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driv en at a speed of approximately 3 mph (5
km/h) or more.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, bu t then turns off, this does not necessar-
ily indicate a malfunction in the system.

338
5-2. Steps to take in an emergency
Stop the vehicle immediately.The following warning indicates the po ssibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Have the vehicle inspected by y our Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
Charging system warning light
Malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lampMalfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
SRS warning light
Malfunction in:
• The SRS airbag system; or
• The front passenger occupant classification system: or
• The seat belt pretensioner system.

5
When trouble arises
339
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning light
Malfunction in:
•The ABS; or
• The brake assist system.
and
Vehicle stability control system and active traction control
system warning lightMalfunction in:
• The VSC system; or
• The active traction control system.
Variable gear ratio stee ring system warning light
Malfunction in the variable gear ratio steering system.
Lexus night view system warning light The bulb for the near-infrared floodlight is burned out.
Automatic transmission fluid temperature warning lightThe automatic transmission fluid temperature is too high.
Warning lightWarning light/DetailsCorrection procedure
Open door warning lightA door is not fully closed.Check that all doors are
closed.

340
5-2. Steps to take in an emergency
Warning lightWarning light/DetailsCorrection procedure
Driver’s seat belt reminder
light (warning buzzer)
*
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.
Front passenger’s seat belt
reminder lightWarns the front passenger to
fasten his/her seat belt.
Fasten the seat belt.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure.Adjust the tire inflation pres-
sure.
When the light blinks:
Malfunction in the tire pres-
sure warning system.Have the system checked by
your Lexus dealer.
Unengaged “Park” warning
lightThe transmission “Park”
mechanism is not engaged.
Shift four-wheel drive control
out of “N”.
Low fuel level warning light
Low level of fuel.Refuel the vehicle
Low washer fluid warning
lightLow level of washer fluid.
Fill the tank.

342
5-2. Steps to take in an emergency
■Key reminder buzzer
The buzzer indicates that the key has not been removed (with the ignition key in the
ACC or LOCK position and the driver’s door opened).
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Front passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash, 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.
■SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
●Front airbag sensors
●The curtain shield airbag sensors
●The side and curtain shield airbag sensors
●The seat belt buckle switches
●The driver's seat position sensor
●The inflators
●The interconnecting wiring and power sources
●The front passenger occupant classification system and indicator light
●The seatbelt pretensioners
●The roll sensing of curtain shie ld airbags off indicator light.