2003 Lexus GX470 Basic Functions / LEXUS 2003 GX470 OWNER'S MANUAL (OM60979U)

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
13
WIRELESS REMOTE CONTROL*
1Locking the doors
2Unlocking the doors
3Indicator light
4Sounding an alarm
NOTE:
*This feature can be set inoperative as vehicle theft
deterrent measure in case of the loss of the wireless remote
control key.
Ask your Lexus dealer for details.
When you operate any button on the key, push it slowly and
surely. At this time, the indicator light on the key grip flashes
once. The operational range of the wireless remote control is
approximately 1 meter (3 ft.). The effective range may vary
with different conditions. To activate the wireless remote
control
without fail, do it approximately 1 meter (3 ft.) from your
Lexus.
In the following cases, the battery in the key may be
discharged. If this is a case, replace it using a special
screwdriver.
 The remote control does not work.
 The operational range of wireless remote control becomes
extremely short.
 The indicator light on the key is dimmed or does not come
on.
For the replacement of the battery, see “Replacing the battery”
on page 16. You can also have the battery of the key replaced
by your Lexus dealer.
If you lose the wireless key, contact your Lexus dealer as soon
as possible to avoid the possibility of theft, or an accident.
You can use up to 4 wireless remote control keys for the same
vehicle. Contact your Lexus dealer for detailed information.

KEYS AND DOORS
14The wireless remote control key is an electronic
component. Observe the following instructions in order
not to cause damage to the key.

Do not leave the wireless remote control key on places
where the temperature becomes high such as on the
dashboard.
 Do not disassemble it.
 Avoid knocking it hard against other objects or dropping it.
 Avoid putting it in water.
Locking/Unlocking the doors
When you push the “LOCK” button on the key briefly, all
the side doors and back door can be locked from outside
the vehicle.
At this time, you can hear one beep* and the turn signal lights
flash.** However, when you push the “LOCK” button with any
door not closed securely, the buzzer sounds for 10 seconds.***
To stop the buzzer, close all the side doors and back door
securely or push the “UNLOCK” button. If the key is in the
ignition switch, locking cannot be done.
Make sure all the doors are locked when you leave the vehicle.
Push the “LOCK” button once again. If they were already
locked, the turn signal lights will flash.
NOTE:
*The beep volume can be changed.
**The turn signal lights can be set not to flash.
***The buzzer can be set not to sound if a door is not closed
securely. Ask your Lexus dealer for details. When you push the “UNLOCK” button, the driver’s door
is unlocked. Pushing that button once again within 3
seconds
from the first push, all other side doors and back
door are also unlocked.*
NOTE:
*The 2step unlocking function can be changed.
Ask your Lexus dealer for details.
At this time, you can hear two beeps* and the turn signal lights
flash twice.** Together with the activation of unlocking, the
personal lights and center interior light come on for 15 seconds
if the personal light switch and center interior light switch is in
the “DOOR” position and the running board lights come on for
15 seconds.*** However , this function does not work when the
ignition key is in the “ON” position. For further information, see
“Illuminated entry system” on page 65.
You have 30 seconds to open a door after using the wireless
remote unlock feature.**** If a door is not opened by then, all
the doors will be automatically locked again.
Even if the “LOCK” or “UNLOCK” button is kept pressed in, the
locking or unlocking operation is not repeated. Release the
button and then push again.
NOTE:
*The beep volume can be changed.
**The turn signal lights can be set not to flash.
***The personal lights, center interior light and running
board lights can be set not to come on or the duration of
lighting can be changed.
****The time before automatic relocking can be changed.
Ask your Lexus dealer for details.

KEYS AND DOORS
15
Sounding an alarm*
When you push the “P ANIC” button for about 1 second, an
alarm sounds to deter any person trying to break into or
damage your vehicle.
If you want to stop the alarm, push any button.
This function does not work when the ignition key is in the “ON”
position.
NOTE:
*The alarm can be set not to sound.
Ask your Lexus dealer for details.
Operating the windows and moon roof
The windows and moon roof can be opened using a
wireless key from outside the vehicle.*NOTE:
*The windows and moon roof can be set inoperative.
Ask your Lexus dealer for details.
Push the “UNLOCK” button until the windows and moon roof
start to move. A beep sounds just before opening. When you
release the button, the windows and moon roof stop opening.
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
received, including interference that may cause
undesired operation.

KEYS AND DOORS
16
NOTICE:
This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference in a residential
installation. This equipment generates, uses and
can radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee
that interference will not occur in a particular
installation. If this equipment does cause harmful
interference to radio or television reception, which
can be determined by turning the equipment off and
on, the user is encouraged to try to correct the
interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
 Increase the separation between the equipment
and receiver.
 Connect the equipment into an outlet on a circuit dif-
ferent from that to which the receiver is connected.
 Consult the dealer or an experienced radio / TV
technician for help.
FCC WARNING:
Changes or modifications not expressly approved
by the party responsible for compliance could void
the user’s authority to operate the equipment.Replacing the battery
When you replace the battery, prepare a lithium battery
CR1616 or equivalent and a special screwdriver.
CAUTION
Special care should be taken that small children do not
swallow the removed battery or components.
NOTICE
 When replacing the battery, be care ful not to lose the
components, screws and Oring.
 Replace only with the same or equivalent type
recommended by a Lexus dealer.
 Dispose of used batteries according to the local laws.

KEYS AND DOORS
17
1. Remove the screw, and then the cover while pushing it in
the arrow direction.
2. Remove the module from the key frame.
3. Remove the 2 screws to take out the lid of the module.
4. Take out the discharged battery and put a new battery with
the positive side up.

KEYS AND DOORS
18
NOTICE
Make sure the positive side and negative side of the
battery should be faced correctly.
 Do not replace the battery with wet hands. Water may
cause unexpected rust.
 Do not touch or move any components in the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode of the battery
insertion and that dust or oils do not adhere to the
inside of the module.
 Take care not to lose the screws and Oring.
5. Install the lid with the 2 screws.
NOTICE
Take care not to damage or bend the Oring when
installing.
6. Install the module into the key frame and secure the cover
with the screw.
7. When pushing any switch on the wireless key, make sure
the indicator light comes on.
SIDE DOORS
Locking with key
 1 Lock2 Unlock
Turn the key towards the front of the vehicle to lock and
towards the back to unlock.
All the side doors and back door lock and unlock
simultaneously with the driver’s door. In the driver’s door lock,
turning the key once will unlock the driver’s door and twice in
succession will unlock all the side doors and back door
simultaneously.*
NOTE:
*The 2step unlocking function can be changed.
Ask your Lexus dealer for details.

KEYS AND DOORS
19
Together with the activation of unlocking, the personal lights
and center interior light come on for 15 seconds if the personal
light and center interior light switches are in the “DOOR”
positions, and the running board lights come on for about 15
seconds. However, this function does not work when the
ignition
key is in the “ON” position. For further information, see
“Illuminated entry system” on page 65.
Locking with inside lock button
 1 Lock2 Unlock
Push in the lock button to lock and unlock the door.
The front doors can be opened by pulling the inside handles
even if the lock buttons are in the locked position.
CAUTION
Do not pull the inside handle of the front doors while
driving. The doors will open and an accident may occur.
Lexus strongly recommends that all children be placed
in the rear seat of the vehicle.
Closing the door with the lock button pushed in will also lock the
door. Be careful not to lock your keys in the vehicle. Doors
cannot be locked when either front door is open and the key is
in the ignition.
CAUTION
Before driving, make sure the doors are closed and
locked, especially when small children are in the
vehicle. Along with the proper use of seat belts, locking
the doors helps prevent the driver and passengers from
being thrown out from the vehicle during an accident.
It also helps prevent the doors from being opened
unintentionally.