2006 Lexus GS430 Scheduled Maintenance Guide / LEXUS 2006 GS430/GS300 FROM JAN. 2005 PROD. OWNER'S MANUAL (OM30649U)

QUICK REFERENCE
4NOTE:
Vehicles
with the cruise control: When the cruise control is being used, even if \
you downshift from “D” or “6” (sixth range) to “5” (\
fifth
range), or “D” or “5” (fifth range) to “4” (fourth\
range), engine braking will not be enabled because the cruise control \
is not cancelled.
For vehicle speed reduction, see page 394. Vehicles with the dynamic radar cruise control: When the cruise control i\
s being us ed
in the conventional (fixed speed) cruise control mode or in the vehicle −to− vehicle distance control mode, even if you downshift from
“D” or “6” (sixth range) to “5” (fifth range) or “D”,\
or “5” (fifth range) to “4” (fourth range), engine brak\
ing will not be enabled because
the cruise control is not cancelled. For vehicle speed reduction, see p\
ages 416.

G00110
G00108
Parking, tail, license plate,
side marker and instrument
panel lights turn on.
Headlights also turn on.
Automatic light control
High beam
Headlight flasher
G00111Right or left turn
Lane change
(Right or left)
QUICK REFERENCE
5
4. HEADLIGHT AND TURN SIGNAL SWITCHES
HEADLIGHT SWITCH
 HEADLIGHT DIMMER SWITCH 
TURN SIGNAL SWITCH

G00112
Variable intermittent wipersMist wiper operation
Variable intermittent
operation
Low speed operation
High speed operation
Washer on
G00113
Mist wiper operation
Automatic operation
Low speed operation
High speed operation
Washer on
Rainsensing windshield wipers
QUICK REFERENCE
6
5. WINDSHIELD WIPER SWITCH

SECTION 1 – 1
7
INSTRUMENTS AND CONTROLS
Keys and doors
Keys8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . .
Smart access system with push− button start10
. . . . . . . . . . . . . . . . . .
Doors 35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . .
Theft deterrent system 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

KEYS AND DOORS
8
KEYS
G11007
1Electronic keys These keys will work for the doors,
trunk and can start the engine. They will not work for
glove box and trunk storage extension door. Your
dealer will need one of them to make a new key.
Before you use these keys, be sure to read “Smart access
system with push− button start” on page 10.
2
Mechanical keys These keys work for the doors,
trunk, glove box and trunk storage extension door,
but cannot start the engine.
3Key number plate Keep the plate in a safe place
such as your wallet, not in the vehicle.
Using a mechanical key
G11008
When you use the mechanical key included on the side of the
electronic key, slide the lock knob in the arrow direction and
take out the key as shown. To put the key back, slide the key
gently until it locks, paying attention to the angle and position
of the key. Be sure to put the key back when not in use.
NOTICE
When using an electronic key, observe the following
precautions:
 Do not af fix any material that cuts off electromagnetic
waves (such as a metal seal) on the electronic key.
 Do not knock the electronic key hard against other
objects.
 Do not leave the electronic key exposed to high
temperatures for a long period, such as on the
dashboard or hood under direct sunlight.

KEYS AND DOORS
9

Do not put the electronic key in water or wash it in an
ultrasonic washer.
 Do not keep the electronic key together with the
products emitting electromagnetic waves such as a
cellular phone.
 Do not disassemble the electronic key.
 Do not place the electronic key near electrical
appliances (e.g. television, computer or stereo) or
electrical medical equipment such as low frequency
medical appliances.
 If gasoline, polishing agents or oil adheres to the
electronic key, it may deform or crack over time.
The electronic keys are required to deactivate the engine
immobilizer, and are essential for the engine immobilizer to
function correctly, so be careful not to lose these keys. If you
make your own duplicate key, you will not be able to cancel the
system or start the engine.
To protect items when using valet parking, turn the trunk lid
opener main switch to inoperative or lock the glove box if
necessary, and leave the electronic key (with the mechanical
key removed) with the attendant. For details, see “Trunk lid
opener main switch” on page 126.
If you should lose your electronic keys or if you need additional
electronic keys, duplicates can be made by a Lexus dealer
using the key number.
We recommend writing down the key number and storing it in
a safe place.

KEYS AND DOORS
10
SMART ACCESS SYSTEM WITH PUSHBUTTON START
G11024
 1Engine immobilizer 2Entry function 3Wireless remote control 4Pushbutton starting
The smart access system with pushbutton start comprises 4 kinds of f\
unctions; engine immobilizer, entry function,
wireless remote control and pushbutton starting.
For engine immobilizer, see page 11.
For entry function, see page 13.
For wireless remote control, see page 28.
For push− button starting, see page 342.

KEYS AND DOORS
11
If the electronic key battery is discharged, the entry function
and wireless remote control cannot be used. Use the
mechanical key integrated into
the electronic key by inserting
it in the door keyhole to lock or unlock doors and into the trunk
lid keyhole to unlock the trunk lid. To start the engine, see
“Starting the engine when the electronic key battery is
discharged” on page 27. In order to activate the entry function
and wireless remote control, the battery should be replaced.
For details, see “Replacing the battery” on page 33.
(a) Engine immobilizer
G11009
The engine immobilizer is a theft prevention function.
When you enter the vehicle carrying an electronic key and
press the engine switch, the electronic code in the key is
automatically checked to determine whether it
corresponds to the registered ID code for the vehicle. If
the ID code is verified, you can start the engine.
The system is automatically set when the engine switch is off.
The indicator light will start flashing to show the system is set.