2006 Lexus GS430 Scheduled Maintenance Guide / LEXUS 2006 GS430/GS300 FROM JAN. 2006 PROD. OWNER'S MANUAL (OM30786U)

KEYS AND DOORS
41
Locking with rear door childprotector
G11004
 1Unlock 2Lock
Whenever small children are in the vehicle, lock the rear
door so that it does not open by the inside door handle.
To do this, turn the knob to the lock position as shown and
then close the door.
THEFT DETERRENT SYSTEM
G11005
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors, trunk or hood is
forcibly unlocked or opened, or the battery terminal is
disconnected and then reconnected while the vehicle is
locked.
The alarm blows the horn intermittently, flashes the headlights,
tail lights, turn signal lights and other exterior lights. When the
interior light switch is in the “DOOR” position, the interior lights
also turn on.
After the alarm is activated, when you unlock any door or the
trunk using a entry function, wireless remote control or
mechanical key, the tail lights turn on for about 2 seconds to
inform you that the system was activated.

KEYS AND DOORS
42
G11006a
Security indicator light
Setting the system
1. Turn the engine switch off.
The engine immobilizer causes the security indicator light to
flash.
2. Close and lock all the doors, trunk and hood using entry
function, wireless remote control or a mechanical key.
If you lock them with entry function or wireless remote control,
the turn signal lights flash once and one beep will sound.* At
this time, the indicator light comes on.
NOTE:
* The turn signal lights can be set not to flash and beep can
be set not to sound.
Ask your Lexus dealer for details.
3. After 30 seconds, the illuminated indicator light
changes flashing and the system is set.
Cancelling the system
When you unlock any door or trunk using entry function,
wireless remote control or a mechanical key, the system
is cancelled.
If you unlock any door or trunk with entry function or wireless
remote control, the turn signal lights flash twice and two beeps
will sound.*
NOTE:
* The turn signal lights can be set not to flash and beep can
be set not to sound.
Ask your Lexus dealer for details.
Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:
Unlocking any door or trunk without using entry function,
wireless remote control or a mechanical key.
 Opening the hood forcibly.
 Reconnecting the battery.
If any door is unlocked during the alarm sounding, its door is
automatically locked.
To stop the alarm: Use either of the following methods.
 Unlock the door or trunk using entry function, wireless
remote control or a mechanical key.
 Start the engine.

KEYS AND DOORS
43
Testing the system
1. Open all the windows.
2. Set the system as described above.
All the doors should be locked with entry function, wireless
remote control or a mechanical key. Be sure to wait until the
indicator light starts flashing.
3. Unlock one of the doors from the inside through one of
the opened windows.
The system should activate the alarm.
4. Unlock any of the doors with entry function, the
wireless remote control or a mechanical key to cancel the
system.
5. Repeat this operation for the other doors, trunk 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
When disconnecting the battery, be sure to cancel the
theft deterrent system. Otherwise, the system could
activate an alarm and lock the unlocked door(s)
automatically.

KEYS AND DOORS
44

SECTION 1 – 2
45
INSTRUMENTS AND CONTROLS
Switches
Headlight switch46
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Headlight dimmer and turn signal switches 49
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Fog light switch 50
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Windshield wiper and washer switches 51
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Headlight cleaner switch 57
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Rear window and outside rear view mirror defogger switch 58
. . . . .
Power window switches 59
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Emergency flasher switch 62
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Seat heater switches 63
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Seat ventilator/heater switches 65
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SWITCHES
46
HEADLIGHT SWITCH
G12001
 1U.S.A. 2Canada
To turn the lights on, twist the knob on the end of the lever.
FIRST CLICKST OP: Only the parking, tail, license plate, side
marker and instrument panel lights turn on.
SECOND CLICKSTOP: Headlights also turn on.
THIRD CLICKSTOP (”AUTO”): The headlights and all other
lights automatically turn on depending on the darkness of the
surroundings.*
NOTE:
*The operating condition or sensitivity can be changed.
Ask your Lexus dealer for details. Vehicles sold in U.S.A.: When the headlights are on, the
headlight indicator lights up in the instrument cluster.
Vehicles sold in Canada:
When the tail lights are on, the tail
light indicator lights up in the instrument cluster.
With the knob in the “AUTO” 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 maximum brightness is provided by
pushing the “MAX” button.
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.

SWITCHES
47
G12002
The automatic light control sensor is on top center of the
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 come on, the lights automatically turn off
about 30 seconds after any of the doors is opened and closed
with the engine switch off.* To turn them on again, select the
engine switch in “IG− ON” mode, or turn the headlight switch off
and then twist the knob until the first or second clickstop.
If you are going to park for over one week, make sure the
headlight switch is off.
When the headlight switch is on with all the doors locked and
the trunk closed, pushing the ”LOCK” button on the electronic
key turns off the headlights.
NOTE:
*The time before turning off the lights can be changed.
Ask your Lexus dealer for details. Daytime Running Light System
The headlights turn on at reduced intensity when the parking
brake is released with the engine started, even with the light
switch in the ”OFF” position. They will not
go off until the engine
switch is turned off.
To turn on the other exterior lights and instrument panel lights,
twist the knob to the first clickstop.
Twist the knob to the second clickstop to turn on the headlights
to full intensity for driving at night.
When setting the knob to the third clickstop (”AUTO”), the
headlights will automatic ally adjust to full intensity and/or turn
on the other lights depending on the darkness of the
surroundings. Likewise, as the surroundings become brighter,
the headlights will turn to reduced intensity, ultimately turning
off the other lights.
NOTICE
To prevent the battery from being discharged, do not
leave the lights on longer than necessary when the
engine is not running.

SWITCHES
48
Automatic headlight leveling system
The headlight beam level is always maintained automatically
at the proper level in all loading conditions so that your
headlights do not dazzle other road users.
If there is a problem somewhere in this system, the message
“CHECK HEADLIGHT” appears on the multi−information
display. At this time, the master warning light comes on and a
warning tone sounds. If the warning message appears, have
your vehicle checked by your Lexus dealer as soon as
possible.
Adaptive Front Lighting System (AFS)
Adaptive Front Lighting System (AFS) provides the proper
headlight beam level according to the current driving
conditions. T his system moves the headlight beam left or right
according to the turning angle of the tires. The synergy of this
system and the automatic headlight leveling system improves
visibility at the intersections and curves.
The system operates when the vehicle speed increases above
10 km/h (6 mph), and stops when the vehicle speed drops
below 10 km/h (6 mph).
The system can operate within the limited range of the tires
turning angle. If you do not want to activate the system, you can cancel
the system.
Adaptive Front Lighting System cancel switch is located in the
switch box.
G12017
Push the button to use the switch box. To cancel the
system, push the “AFS OFF” switch. To turn it on, push
it again.
When the system is canceled, the “AFS OFF” indicator lights
up in the instrument cluster.
If the system fails, the indicator light in the instrument cluster
will flash. If this occurs, have your vehicle checked by your
Lexus dealer.
After operation, be sure to close the switch box to its original
position.