2003 Lexus GX470 engine

KEYS AND DOORS
11
When starting the engine, do not use the key in
proximity with other transponder keys (including the
flat key and keys of other vehicles), and do not press
other key plates against the key grip. Doing so may
prevent the engine from starting, or may cause the
engine to stop soon after it starts. If this happens,
remove the key once and then insert it again after
removing other transponder keys (including the flat
key and keys of other vehicles) from the ring or while
gripping or covering them with your hand to start the
engine. Do not bend the key grip or flat key.
 Do not cover the key grip or flat key with any material
that cuts off electromagnetic waves.
 Do not knock the key or flat key hard against other
objects.
 Do not leave the key or flat key exposed to high
temperatures for a long period, such as on the
dashboard or hood under direct sunlight.
 Do not put the key or flat key in water or wash it in an
ultrasonic washer.
 Do not use the key or flat key with electromagnetic
materials.

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference re-
ceived, including interference that may cause unde-
sired operation.
FCC ID: MOZRI20BTYMADE IN JAPAN
KEYS AND DOORS
12
ENGINE IMMOBILISER SYSTEM
The engine immobiliser system is a theft prevention
system. When you insert the key in the ignition switch, the
transponder chip in the key’ s head transmits an electronic
code to the vehicle. The engine will start only when the
electronic code in the chip corresponds to the registered
ID code for the vehicle.
The system is automatically set when the key is removed from
the ignition switch. At this time, the security indicator light
flashes. When you insert the key in the ignition switch, the
security indicator light goes out and the system is canceled
automatically, which enables the engine to start.
The transponder chip of the flat key is in its key case. You can
cancel the engine immobiliser system using the flat key. (For
details, see “Flat key” on page 9.) For your Lexus dealer to make you a new key with built
−in
transponder chip, your dealer will need your key number and
master key. However, there is a limit to the number of
additional keys your Lexus dealer can make for you.
If you make your own duplicate key, you will not be able to
cancel the system or start the engine.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.

KEYS AND DOORS
20
Locking with power door lock switch
 1 Lock2 Unlock
To lock all the side doors and back door simultaneously,
push the power door lock switch down on the front side.
Pushing down on the rear side will unlock them.
The same switch is also located on the front passenger’s side.
If you do any of the following, no door can be unlocked with the
power door lock switch.
 Lock all the doors with the key or wireless remote control
when all the doors are closed.
 Open the driver’s door or front passenger’s door and move
the inside lock buttons of both front doors to the lock
position, then close the front doors. The power door lock switch can be reset in the following ways.

Turn the ignition key to the “ON” position.
 Unlock all the side doors and back door with the key or
wireless remote control.
 Unlock the driver’s door or front passenger’s door with the
inside lock button, and then unlock all the doors with the
power door lock switch.
Auto door locking function*: All the side doors and back
door will lock automatically when the selector lever is moved
out of “P” position. This auto door locking function is operable
if any doors are unlocked while the engine running.
NOTE:
*This auto door locking function can be disabled or
changed.
Ask your Lexus dealer for details.

SWITCHES
25
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 “ACC” or “LOCK” position.* If you
want to turn off
the lights immediately, push the “LOCK” button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the “LOCK” 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 “LOCK” 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.
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.

SWITCHES
32To turn the electric rear window defogger on, push the
switch.
The ignition key must be in the “ON” position.
The thin heater wires on the inside of the rear window will
quickly clear the surface. An indicator light will illuminate to
indicate the defogger is operating.
The system will automatically shut off when the defogger has
operated about 15 minutes.
If further defrosting or defogging is desired, simply actuate the
switch again. When the
surface has cleared, push the switch
once again to turn the defogger of f. Continuous use may cause
the battery to discharge, especially during stop −and−go
driving. The defogger is not designed to dry rain water or to
melt snow.
NOTICE
 When cleaning the inside of the rear window, be
careful not to scratch or damage the heater wires or
connectors.
 To prevent the battery from being discharged, turn
the switch off when the engine is not running.
OUTSIDE REAR VIEW MIRROR
DEFOGGER SWITCH
To turn the electric outside rear view mirror defogger on,
push the switch.
The ignition key must be in the “ON” position.
The thin heater wires on the heater panels in the outside rear
view mirrors will quickly clear the surface. Keep your hands off
the mirror faces when the switch is on. An indicator light will
illuminate to indicate the defogger is operating.
The system will automatically shut off when the defogger has
operated about 5 minutes.

SWITCHES
33
CAUTION
Since the mirror surfaces can get hot, do not touch them
when the switch is on.
If further defrosting or defogging is desired, simply actuate the
switch again. When the surface has cleared, push the switch
once again to turn the defogger of f. Continuous use may cause
the battery to discharge, especially during stop −and−go
driving. The defogger is not designed to dry rain water or to
melt snow.
If the outside rear view mirrors are heavily coated with ice, use
a spray de −icer before operating the switch.
NOTICE
To prevent the battery from being discharged, turn the
switch off when the engine is not running.
POWER WINDOW SWITCHES
 1 For driver’s window

2 For front passenger’s window

3 For left rear window

4 For right rear window
To raise or lower the windows, use the switch on each
door. The passengers’ windows can also be controlled by
the switches on the driver’s door.
The power windows work when the ignition key is in the “ON”
position.
Key off operation: Even if the ignition key is turned to the
“ACC” or “LOCK” position with all the doors closed, the window
can be operated until a front door is opened (or for 43 seconds).

SWITCHES
36
CAUTION
To avoid serious personal injury, you must do the
following.
Before you close the power windows, always make
sure there is nobody around the power windows. You
must also make sure the heads, hands and other
parts of the bodies of all occupants are kept
completely inside the vehicle. If someone’s neck,
head or hands get caught in a closing window, it
could result in a serious injury. When anyone closes
the power windows, make sure he or she operates the
windows safely.
 When small children are in the vehicle, never let them
use the power window switches without supervision.
Use the window lock switch to prevent them from
making unexpected use of the switches.
 Be sure to remove the ignition key when you leave
your vehicle.
 Never leave anyone (particularly a small child) alone
in your vehicle, especially with the ignition key still
inserted. Otherwise, he/she could use the power
window switches and get trapped in a window.
Unattended person (particularly a small child) can be
involved in a serious accident.
 Never try jamming any part of your body to activate
the jam protection function intentionally.
 The jam protection function may not work if
something gets caught just before the window fully
closed.
EMERGENCY FLASHER SWITCH
To turn on the emergency flashers, push the switch. To
turn them off, push the switch again.
All the turn signal lights will flash. The emergency flashers will
work with the engine running or off and with or without the
ignition key.
Turn on the emergency flashers to warn other drivers if you
must stop your vehicle where it might be a traffic hazard.
Always pull your vehicle as far off the road as possible.
The turn signal light switch will not work when the emergency
flashers are in operation.
NOTICE
To prevent the battery from being discharged, do not
leave the switch on longer than necessary when the
engine is not running.

SWITCHES
37
SEAT HEATER SWITCHES
The seat heater has two dials; one marked “L” (for the
driver’s seat) and the other marked “R” (for the front
passenger’s seat). To turn the seat heaters on, turn the
dials forward. The indicator lights come on. To turn them
off, turn the dials backward until they stop. The indicator
lights go off.
You can adjust the heating temperature to 5 stages. To
increase the temperature, turn them forward. To decrease the
temperature, turn them backward.
The ignition key must be in the “ON” position.
CAUTION
Occupants must use caution when operating the seat
heater because they may experience minor burns even
at low temperatures. Use extra caution for;
 Babies, small children, elderly persons, sick persons
or handicapped persons
 Persons who have delicate skin
 Persons who are exhausted
 Persons who have taken alcohol or drugs which
induce sleep (sleeping drug, cold remedy, etc.).
To prevent the seat from overheating, do not use the
seat heater with a blanket, cushion, or other insulating
objects which cover the seat.
NOTICE
 Do not put unevenly weighted objects on the seat and
do not stick sharp objects (needles, nails, etc.) into
the seat.
 When cleaning the seats, do not use organic
substances (paint thinner, benzine, alcohol,
gasoline, etc.). They may damage the heater and seat
surface.
 To prevent the battery from being discharged, turn
the switches off when the engine is not running.