Lexus GX470 2004 Engine / LEXUS 2004 GX470 THROUGH OCT. 2003 PROD. (OM60A46U) Service Manual

KEYS AND DOORS
26

Security indicator light
Setting the system
1. Turn the ignition key to the LOCKº position and
remove it.
The engine immobilizer system causes the indicator light to
flash.
2. Close and lock all the doors and hood using an ignition
key or wireless remote control.
If you lock them with wireless remote control, the turn signals
flash once.
The flashing indicator light will remain on when all the doors
and hood are closed and locked.
3. After 30 seconds, the indicator starts flashing and the
system is set.
Cancelling the system
When you unlock any door using an ignition key or
wireless remote control, the system is cancelled.
If you unlock any door with wireless remote control, the turn
signals flash twice.
Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:
Unlocking any door without using an ignition key or wireless
remote control.
Opening the hood and any doors forcibly.
Reconnecting the battery.
If the battery becomes discharged due to the vehicle being
unused for a long time, etc., when the battery is recharged or
replaced, the system will give the alarm. If this happens,
immediately unlock any of the doors with the key or the
wireless remote control, and the alarm will stop.
If any door is unlocked and the ignition key is not in the ignition
switch during the alarm sounding, its door is automatically
locked.
To stop the alarm: Use either of the following methods.
Unlock the door using an ignition key or wireless remote
control.
Turn the ignition switch on.

KEYS AND DOORS
27
Testing the system
1. Open all the windows.
2. Set the system as described above.
The front doors should be locked with the ignition key or
wireless remote control. Be sure to wait until the indicator light
starts flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.4. Unlock any of the doors with a key or the wireless
remote control to cancel the system.
5. Repeat this operation for the other doors and hood.
When testing the hood, also check that the system is activated
when the battery terminal is disconnected and then
reconnected.
If the system does not work properly, have it checked by your
Lexus dealer.
NOTICE
Disconnecting the battery may result in the erasure of
information you have set in the computer memory. After
reconnecting the battery, check that the memorized
data has been retained. If it has been erased, input it into
the computer once more.

SECTION 1 ± 2
28
INSTRUMENTS AND CONTROLS
Switches
Headlight switch29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight dimmer and turn signal switch 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog light switch32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield wiper and washer switch32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear window wiper and washer switch38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear window defogger switch40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside rear view mirror defogger switch42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power window switches43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency flasher switch46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat heater switches47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SWITCHES
29
HEADLIGHT SWITCH
To turn the lights on, twist the knob on the end of the lever.
FIRST CLICKSTOP: Only the parking, tail, license plate, side
marker and instrument panel lights turn on.
SECOND CLICKSTOP: Headlights also turn on.
THIRD CLICKSTOP (AUTOº): The headlights and all other
lights automatically turn on depending on the darkness of the
surroundings.
*
NOTE:
* The sensitivity of the automatic light control sensor can be
changed.
Ask your Lexus dealer for details.
When the headlights are on, the headlight indicator lights up in
the instrument cluster.With the knob in the AUTOº position, there may be a case
that the headlights do not turn on immediately, even when
the vehicle enters a dark place such as a tunnel or parking
lot according to lighting conditions. In this case, we
recommend you to twist the knob manually to the second
clickstop to turn on the headlights immediately.
When the headlight switch is turned to the first or second
clickstop, the brightness of the instrument cluster will be
reduced slightly unless the instrument panel light control dial
is turned fully up.
However, the brightness of the instrument cluster will not be
reduced in daytime even when the headlight switch is turned
to first or second clickstop.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.

SWITCHES
30When 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 ACCº or LOCKº position.* If you
want to turn off the lights immediately, push the LOCKº button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the LOCKº 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 LOCKº 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.
NOTICE
To prevent the battery from being discharged, do not
leave the lights on longer than necessary when the
engine is not running.

SWITCHES
31
HEADLIGHT DIMMER AND TURN
SIGNAL SWITCH
12PY003
For high beam, push the lever forward. Pull it back for low
beam. For the headlight flasher, pull it further back.
A blue light in the instrument cluster indicates high beam or
headlight flasher is on.
The headlight flasher works even when the headlight switch is
off.
For signaling turns, move the lever up or down in the
conventional manner.
The ignition key must be in the ONº position.
The turn signal is self-cancelling after a turn, but after a lane
change, you may have to cancel it by hand. You can also signal
a lane change by moving the turn signal lever partway and
holding it there.
If the green light in the instrument cluster flashes faster than
normal, it indicates that the front or rear turn signal bulb has
burned out. If this indicator light does not come on, the fuse
or the indicator light itself has probably failed.

SWITCHES
32
FOG LIGHT SWITCH
To turn on the fog lights, turn the switch to the ONº
position. The fog lights come on only when the headlights
are on low beam.
WINDSHIELD WIPER AND WASHER
SWITCH
Intermittent operation type

1Interval adjuster
2Washer on
To turn the wipers on, move the lever down until you reach
the desired speed setting.
The ignition key must be in the ONº position.
There are 3 settings:
INTº position: Intermittent operation
LOº position: Low speed operation
HIº position: High speed operation

SWITCHES
33 Twist the interval adjuster upward to increase the wiping
time interval between sweeps, and downward to decrease
it.
The wiper lever must be in the INTº position.
The time interval between sweeps is shortened when the
vehicle speed increases. When the vehicle speed reaches
more than about 20 km/h (12 mph) with the interval adjuster in
the full upward position, the time interval becomes the shortest
1.5 seconds.
If you stop the vehicle with the wiper switch in the LOº position,
the wiper speed automatically changes from low speed to
intermittent operation speed.* This function does not work
when the interval adjuster is in the full upward position.
NOTE:
* This feature can be deactivated.
Ask your Lexus dealer for details.
To make the washer squirt, pull the lever toward you and
release it.
If the wiper lever is in the OFFº position, the wipers will
automatically make 3 wipes and then a single wipe later to
sweep the windshield completely.* The interval between the
3 wipes and the last wipe will depend on the vehicle speed. The
last sweep does not happen if the vehicle speed exceeds about
170 km/h (106 mph).
NOTE:
* The last single wipe can be deactivated.
Ask your Lexus dealer for details.
The low washer fluid warning light in the instrument cluster
comes on when the fluid level in the tank becomes nearly
empty. For information on adding washer fluid, see Adding
washer fluidº on page 572.
In cold weather, warm the windshield with the defroster before
using the washer. This will help prevent icing, which could
block your vision.

SWITCHES
34
NOTICE
Do not operate the wipers if the windshield is dry. It may
scratch the glass.
Raindrop detection type

1Automatic control adjuster
2Washer on
To turn the wipers on, move the lever down until you reach
the desired speed setting.
The ignition switch must be in the ONº position.
There are 3 settings:
AUTOº position: Automatic operation
LOº position: Low speed operation
HIº position: High speed operation
Automatic operation
The wiper speed is determined by the amount of raindrops
and sunlight detected by the automatic wiper control
sensor.

SWITCHES
35 Twist the automatic control adjuster in the ±º direction to
lower the sensitivity, and the +º direction to boost the
sensitivity.
The sensor is on the inside of the windshield as shown above.Even if the wiper lever is in the AUTOº position, the system will
switch to intermittent operations in the following conditions:
When the windshield gets extremely cold (at less than
±10C or 14F)
When the system malfunctions
However, when the windshield gets extremely hot (at more
than 90C or 194F), the wipers do not operate even if the
wiper lever is in the AUTOº position.
When the ignition switch is turned off with the wiper lever in the
AUTOº position, and then the ignition switch is turned on
again, the automatic operation may not work even if raindrops
are on the windshield.
In this case, move the lever to another position and return it to
the AUTOº position again.
If you stop the vehicle with the wiper switch in the LOº position,
the wiper speed automatically changes from low speed to
intermittent operation speed.* This function does not work
when the automatic control adjuster is in the +º position.
NOTE:
* This feature can be deactivated.
Ask your Lexus dealer for details.