2005 Lexus GX470 brake

KEYS AND DOORS
26AUTOMATIC DOOR UNLOCKING
You can select the following functions:

Unlocking linked with the ignition switch
All doors are automatically unlocked when the driver's door
is opened within 10 seconds after the ignition switch is
turned to the ªACCº or ªLOCKº position, or the key is removed.
 Unlocking linked with the shift position
All doors are automatically unlocked when the selector lever
is moved to ªPº position.
You can set or cancel the automatic door unlocking
functions:
Be sure to apply the parking brake when performing the
following operations.
To select the unlocking linked with the ignition switch:
1. Close all doors and turn the ignition switch to the ªONº
position.
2. Shift the selector lever from ªPº to the ªNº position.
3. Within 10 seconds of turning the ignition switch to the ªONº
position, press and hold the driver's side power door lock
switch in the unlock position for 5 seconds and then release.
The doors will be locked and unlocked to indicate that the
function is set.
To cancel the function, do the above operation again. To select the unlocking linked with the shift position:
1. Close all doors and turn the ignition switch to the ªONº
position.
2. Shift the selector lever to the ªPº position.
3. Within 10 seconds of turning the ignition switch to the ªONº
position, press and hold the driver's side power door lock
switch in the unlock position for 5 seconds and then release.
The doors will be locked and unlocked to indicate that the
function is set.
To cancel the function, do the above operation again.

SWITCHES
34
The automatic light control sensor is on top of the driver's side
instrument panel.
Do not place anything on the instrument panel, and/or do not
affix anything on the windshield to block this sensor.
When the headlights are on, they automatically turn off about
30 seconds after any side door is opened and closed with the
ignition key turned to the ªACCº or ªLOCKº position.* If you
want to turn off the lights immediately, push the ªLOCKº button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the ªLOCKº button on the
wireless remote control key with all the doors locked.
NOTE:* The time before turning off the lights can be changed.Ask your Lexus dealer for details.
If any of the side door is kept opened, the lights automatically
turn off after 30 minutes.
When the headlight switch is on with all the doors locked,
pushing the ªLOCKº button on the wireless remote control key
turns off the headlights.
If you are going to park for over one week, make sure the
headlight switch is off.
Daytime Running Light System
The daytime running light system make your front turn signal
lights turn on when the parking brake is released with the
engine started and the headlights are turned off. They will not
go off until the ignition switch is turned off.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
62
SERVICE REMINDER INDICATORSAND WARNING BUZZERS
IF THIS INDICATOR OR
BUZZER COMES ON...DO THIS.
(a)or
(Indicator and buzzer)If parking brake is off,
stop immediately and
contact Lexus dealer.
(b)
(Indicator and buzzer)
Fasten driver's seat
belt.
(c)Fasten front
passenger's seat belt.
(d)Take vehicle to Lexus
dealer immediately.
(e)orTake vehicle to Lexus
dealer.
IF THIS INDICATOR OR BUZZER COMES ON...DO THIS.
(f)or
Take vehicle to Lexus
dealer.
If brake system
warning light is also
on, stop immediately
and contact Lexus
dealer.
(g)Close all side doors
and back door.
(h)Shift four±wheel drive
control out of ªNº.
(i)Stop and check.
(j)Take vehicle to Lexus
dealer.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
64
(a) Brake System Warning Light and Buzzer
This light comes on in the following cases when the ignition key
is in the ªONº position.
 When the parking brake is applied...
This light comes on for a few seconds when the ignition key is
in the ªONº position even after the parking brake is released.
 When the brake fluid level is low...
CAUTION
It is dangerous to continue driving normally when the
brake fluid level is low.
When the hydraulic brake booster fails...
If the hydraulic booster causes a problem resulting in poor
braking performance, the warning light comes on and buzzer
sounds continuously.
Have your vehicle checked at your Lexus dealer in the
following cases:
 The light does not come on even if the parking brake is
applied when the ignition key is in the ªONº position.
 The light does not come on even if the ignition key is turned
on with the parking brake released.
A warning light turning on briefly during operation does not
indicate a problem.
CAUTION
If any of the following conditions occurs, immediately
stop your vehicle at a safe place and contact your Lexus
dealer.
 The light does not turn off even after the parking
brake is released while the engine is running.
 The warning buzzer comes on together with the
warning light.
In either case, this can indicate that the brakes may not
work properly and your stopping distance will become
longer. Depress the brake pedal firmly and bring the
vehicle to an immediate stop.
 The brake system warning light remains on together
with the ªABSº warning light.
In this case, not only the anti±lock brake system will fail,
but also the vehicle will become extremely unstable
during braking.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
65
Any of the following conditions may occur, but do not
indicate the malfunction:

The light may stay on for about 60 seconds after the ignition
key is turned to the ªONº position. It is normal if it turns off
after a while.
 Depressing the brake pedal repeatedly may turn on the
warning light and buzzer. It is normal if the light turns off and
the buzzer stops sounding after a few seconds.
 You may hear a small sound in the engine compartment
after the engine is started or the brake pedal is depressed
repeatedly. This is a pump pulsating sound of the brake
system, and it is not a malfunction.
(b) Driver's Seat Belt Reminder Light and Buzzer
The light and buzzer act as a reminder to buckle up the driver's
seat belt.
Once the ignition key is turned to ªONº or ªSTARTº, the
reminder light flashes and buzzer sounds if the driver's seat
belt is not fastened. Unless the driver fastens the belt, the light
continues flashing and the buzzer stops after about 4 to 8
seconds.
(c) Front Passenger's Seat Belt Reminder Light
The light acts as a reminder to have the front passenger buckle
up the seat belt.
Once the ignition key is turned to ªONº or ªSTARTº, the
reminder light flashes if a passenger sits in the front passenger
seat and does not fasten the seat belt.
If luggage or other load is placed on the front passenger seat,
depending on its weight, the reminder light may flash.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
67
At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to ªACCº or ªLOCKº position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
Emissions inspection and maintenance (I/M) programs
Your vehicle may not pass a state emission inspection if the
malfunction indicator lamp remains on. Contact your Lexus
dealer to check your vehicle's emission control system and
OBD (On±Board Diagnostics) system before taking your
vehicle for the inspection.
For details, see ªEmissions inspection and maintenance (I/M)
programsº on page 532.
(f) ªABSº Warning Light
The light comes on when the ignition key is turned to the ªONº
position. If the anti±lock brake system and the brake assist
system work properly, the light turns off after a few seconds.
Thereafter, if either of the systems malfunctions, the light
comes on again.
When the ªABSº warning light is on (and the brake system
warning light is off), the following systems do not operate, but
the brake system still operates conventionally.

Anti±lock brake system
 Brake assist system
 Active traction control system
 Vehicle stability control system
 Downhill assist control system
 Hill±start assist control
When the ªABSº warning light is on (and the brake system
warning light is off), the anti±lock brake system does not
operate, so that the wheels will lock up during a sudden braking
or braking on slippery road surfaces.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
68If either of the following conditions occurs, this indicates
a malfunction somewhere in the components monitored
by the warning light system. Contact your Lexus dealer as
soon as possible to service the vehicle.

The light does not come on when the ignition key is turned
to the ªONº position, or remains on.
 The light comes on while you are driving.
A warning light turning on briefly during operation does not
indicate a problem.
CAUTION
If the ªABSº warning light remains on together with the
brake system warning light, immediately stop your
vehicle at a safe place and contact your Lexus dealer.
In this case, not only the anti±lock brake system will fail
but also the vehicle will become extremely unstable
during braking.
Either of the following conditions may occur, but do not
indicate a malfunction:
 The light may stay on for about 60 seconds after the ignition
key is turned to the ªONº position. It is normal if it turns off
after a while.
 Depressing the brake pedal repeatedly may turn on the
light. It is normal if it turns off after a few seconds.
(g) Open Door Warning Light
This light remains on until all the side doors and back door are
completely closed.
(h) Unengaged ªParkº Warning Light
This light warns that the transmission ªParkº mechanism is not
engaged. If the four±wheel drive control is in the ªNº position
while the selector lever is in the ªPº position, the transmission
will disengage and the wheels will not lock.
CAUTION
To restore the park function, shift the four±wheel drive
control out of ªNº.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
70
(j) ªVSC TRACº Warning Light
This light warns that there is a problem somewhere in the
following.
Vehicle stability control system
 Active traction control system
 Downhill assist control system
 Hill±start assist control
The light will come on when the ignition key turned to ªONº, and
will go off after a few seconds.
It is not a malfunction that the warning light may stay on for 60
seconds after the ignition key is turned to the ªONº position.
Depressing the brake pedal repeatedly may turn on the lights.
It is normal if they go out after a few seconds.
If the light comes on while driving, the above mentioned
systems do not work. However, as conventional braking
operates when applied, there is no problem to continue your
driving.
In the following cases, contact your Lexus dealer:
 The warning light does not come on after the ignition key is
turned to ªONº.
 The warning light remains on after the ignition key is turned
to ªONº.
 The warning light comes on while driving.
When the brake fluid level is too low, the above±mentioned
systems will not operate and the warning light come on.
(k) ªKDSSº Warning Light (vehicles with kinetic dynamic suspension system)
This light warns that there is a problem somewhere in the
kinetic dynamic suspension system.
The light will come on when the ignition key is turned to the
ªONº position and will go off after a few seconds.
If the light comes on while driving, bring your vehicle to your
Lexus dealer as soon as possible and have it checked.
(l) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, stop the vehicle, turn off the
engine, and check for the cause. Look first at the engine drive
belt.
 If it is loose or broken, the generator will not charge the
battery properly.
 If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however, until the
battery is discharged. Turn off the air conditioning, blower,
radio, etc., and drive directly to the nearest Lexus dealer or
repair shop.