light LEXUS LS430 2005 User Guide

KEYS AND DOORS
17
11L358
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.
ENGINE IMMOBILIZER SYSTEM
Deactivation using the smart key system
11L222a
The engine immobilizer system is a theft prevention
system. When you enter the vehicle carrying a smart key
and push the ignition 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 key indicator light comes on after the ID code
verification, you can start the engine.
This system is automatically set when the ignition switch is
turned to the “LOCK” position. At this time, the security
indicator light flashes. When you push the ignition switch, the
security indicator light goes out and the system is cancelled
automatically, which enables the engine to start.
The engine immobilizer system cannot be cancelled if the
cancel switch of the smart key system is turned on. For details,
see “Deactivating the smart key system” on page 34.

KEYS AND DOORS
18For 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.
NOTICE
Do not modify, remove or disassemble the engine
immobilizer system. If any unauthorized changes or
modifications are made, proper operation of the system
cannot be guaranteed.
Deactivation using the key
11L223a
 1 Type A 2Type B
The engine immobilizer 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 immobilizer system using the flat key. (For
details, see pages 12 and 15.)

KEYS AND DOORS
25
Locking the doors with smart key system
11L224
The smart key system will lock the doors without being
inserted into the door keyhole.
When you exit the vehicle carrying the smart key and push the
lock button on the outside door handle with all the doors
closed, all the doors will be locked provided that the electronic
code in the key corresponds to the registered ID code for the
vehicle.
At this time, you will hear one beep and the turn signal lights
flash once. However, when you push the lock button on the
outside door handle with any door not closed securely, a beep
sounds for 10 seconds. (For details, see page 27.)
If outer foot lights are illuminated, you can turn off the lights by
pushing the “LOCK” button on the smart key. (For details, see
“Outer foot lights” on page 233.)
INFORMATION
 When locking the doors, be sure to push the lock
button on the outside door handle slowly and surely.
If you push the button quickly, the doors may not
lock.
 When opening or closing a door, do not touch the
lock button on the outside door handle.
 When a wireless key is used to lock the doors and a
smart key is left in the ef fective range of the smart key
system in the vehicle, the doors cannot be unlocked
using the smart key system. In this case, use the
wireless remote function to unlock the doors.
 You cannot activate smart unlocking functions
within 3 seconds after the smart locking function is
activated.

KEYS AND DOORS
28
Unlocking the door(s) with smart key system
11L225
The smart key system can be used to unlock the door(s)
without being inserted into the door keyhole.
When you get close to your vehicle (about 1 m (3 ft.) from each
outside door handle), and are carrying the smart key, the
electronic code emitted from the key is automatically checked
to determine if it corresponds to the registered ID code for the
vehicle. After this, the outer foot lights come on. (For outer foot
lights, see “Outer foot lights” on page 233.) When you take
hold of the back side of the outside door handle on the door
firmly, it will unlock and the key indicator light blinks. (You can
select the doors to be unlocked. For details, see “Changing the
doors to be unlocked” on page 30.) At this time, two beeps sound and the turn signal lights flash
twice. As the door(s) is(are) unlocked, the interior light comes
on for 15 seconds if the interior light switch is in the “DOOR”
position. However, the interior lights go out when you push the
power door lock switch in the lock position or turn the ignition
switch to the “ACC” or “ON” position. For further information,
see “Interior lights” on page 112.
You have 30 seconds to open a door after operating the smart
unlocking
function. If a door is not opened by then, all the doors
will be automatically locked again.

KEYS AND DOORS
33
Battery power saving
When doors are locked, the smart key system transmits
electromagnetic waves to the outside of the vehicle at regular
intervals. For this reason, the vehicle battery will be
discharged if the vehicle is left for a long time. If the key is left
within the effective range of the smart key system outside of
the vehicle, the key and the vehicle transmit electromagnetic
waves periodically.
If these conditions continue for a long time, the battery in the
key and vehicle will be discharged and from the sixth day,
smart unlocking operations will become slow.
To prevent the batteries from being discharged, the smart key
system is automatically deactivated in the following conditions:
 If there is no smart door locking operation for more than 14
days
 If the key is left within the effective range of the smart key
system outside of the vehicle for more than 10 minutes
To reactivate the smart key system properly, perform any of the
following:
(a) Press the lock button on the outside door handle while
carrying the smart key.
(b) Perform a wireless remote control operation.
(c) Insert and turn the key in the keyhole of the door.INFORMATION
 To maintain communication with the vehicle, smart
keys (including master keys) use builtin battery
power. The battery service life is about 1 to 3 years
on average. If battery power becomes insufficient,
replace the battery with a new one.
 The smart key continually receives electromagnetic
waves, and if it receives strong electromagnetic
waves over a period of time, the battery can be
drastically run down. Therefore, avoid storing smart
keys near any electrical appliances.
Here is a list of electrical appliances which may have
adverse effects on the smart key performance: TVs,
personal computers, cellular phone or cordless
phone recharger units, electric light stands and
fluorescent desk lights
Note that you should always keep such electrical
appliances at least 1 m (3 ft.) away from the smart key.

KEYS AND DOORS
36For vehicles sold in Canada
This device complies with RSS− 210 of Industry
Canada.
Operation is subject to the following two conditions:
(1) This device may not cause interference, and (2)
this device must accept any interference, including
interference that may cause undesired operation of the
device.
WIRELESS REMOTE CONTROL*
11L215
 1 Type A 2Type B
3Indicator light
4Locking the doors and sounding an alarm
5Unlocking the doors, and opening the windows and
moon roof
6 Unlocking the trunk lid
NOTE:
* This feature can be deactivated as vehicle theft deterrent
measure in case of the loss of the wireless remote control
function 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.

KEYS AND DOORS
37
The operational range of the wireless remote control is
approximately 1 m (3 ft.). The effective range may vary with
different conditions. To activate the wireless remote control
without fail, do it approximately 1 m (3 ft.) from your Lexus.
In the following cases, th
e battery in the key may be
discharged. If this is a case, replace the battery using a special
screwdriver. For the key of Type A, we recommend that you
have the battery replaced by your Lexus dealer to prevent the
key from being damaged.
 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 of the Type B key, see
“Replacing the battery” on page 44. You can also have the
battery of the key replaced by your Lexus dealer.
If you lose the wireless function key, contact your Lexus dealer
as soon as possible to avoid the possibility of theft, or an
accident. (See “If you lose your keys or lock yourself out” on
page 424.)
If your vehicle is equipped with smart key system, you can use
up to 5 master keys and 3 valet keys for the same vehicle. In
case of the vehicle not equipped with smart key system, up to
4 master keys are available. Contact your Lexus dealer for
detailed information. The wireless remote control function 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 function key in
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.

KEYS AND DOORS
38
Locking/Unlocking the doors
When you push the “LOCK” button on the key briefly, all
the doors can be locked from outside the vehicle.
At this time, you can hear one beep and the turn signal lights
flash once.* 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 doors securely or
push the “UNLOCK” button. If the key is in the ignition switch,
locking cannot be done.
NOTE:
* 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.
If outer foot lights are illuminated, you can turn off the lights by
pushing the “LOCK” button on the key. (For details, see “Outer
foot lights” on page 233.)
NOTICE
Do not push the “LOCK” button any longer than 2 to 3
seconds. Pushing the button longer activates an alarm.
For details, see page 40.
When you push the “UNLOCK” button, the driver’s door
is unlocked and outer foot lights come on. Pushing the
“UNLOCK” button once again within 3 seconds from the
first push, all other doors are also unlocked.*
For outer foot lights, see “Outer foot lights” on page 233.
NOTE:
* The 2step unlocking function can be changed.
Ask your Lexus dealer for details.
At this time, two beeps sound and the turn signal lights flash
twice.* Together with the activation of unlocking, the interior
light comes on for 15 seconds if the interior light switch is in
“DOOR” position.** However, this function does not work
when the ignition switch is in the “ACC” or “ON” position. \
For
further information, see “Interior lights” on page 112.
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.
NOTE:
* The turn signal lights can be set not to flash.
** The interior light 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.
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 it again.

KEYS AND DOORS
44
NOTICE
Make sure the positive side and negative side of the
battery are faced correctly.
 Do not replace the battery with wet hands. Water may
cause unexpected rust.
 Do not touch or move any components inside the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode when inserting
the battery and that dust or oils do not adhere to the
inside of the module.
6. Install the battery base into the module.
NOTICE
Take care not to damage or bend the battery base when
installing.
7. Install the module into the main frame.
8. Install the cover back on the side of the key by sliding it using
your finger.
9. When pushing any switch on the wireless key, make sure
the indicator light comes on.
Replacing the battery (Type B)
When you replace the battery, prepare a lithium battery
CR1616 or equivalent and a special screwdriver.
CAUTION
Special care should be taken to prevent small children
from swallowing the removed battery or components.
NOTICE
 When replacing the battery, be c areful 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.
11L0281
1. Remove the screw, and then the cover while pushing it in the

KEYS AND DOORS
45
arrow direction.
11L0291
2. Remove the module from the key frame.
11L0301
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.
NOTICE

Make sure the positive side and negative side of the
battery are faced correctly.
 Do not replace the battery with wet hands. Water may
cause unexpected rust.
 Do not touch or move any components inside the
transmitter, or it may interfere with proper operation.
 Be careful not to bend the electrode when inserting
the battery 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.