LEXUS LS430 2005 Workshop Manual

KEYS AND DOORS
32
11L237b
Key reminder alarm
If you lock your key in the trunk, an alarm sounds for 10
seconds to remind you that the key is in the trunk.
To stop the alarm, push the trunk button. At this time, the trunk
lid is unlocked. Even after the alarm stops sounding, pushing
the trunk button will unlock the trunk lid.
INFORMATION
 If you close the trunk lid while a smart key is left in the
trunk, an alarm should be activated. However, if the
key is placed near the spare tire or at the edge of the
trunk, or if the key is in a metallic bag, the trunk lid
might not be unlocked.
 If you accidentally lock a smart key in the trunk, be
aware that anyone can unlock the trunk by pushing
the trunk button.
 Even when the smart key is outside the trunk, an
alarm still might be activated if the key is near the
trunk. However, if you have the key, there is no
problem.

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
34
Deactivating the smart key system
11L341b
 1Smart key system is on.
2Smart key system is off.
The cancel switch for this system is located at the bottom
of the instrument panel on the driver side. When you push
the button, the smart key system will be deactivated.
Pushing the button again will reactivate the system.
When the smart key system is deactivated, use a mechanical
key or wireless remote control function key to lock and unlock
the doors or unlock the trunk lid. To start the engine, insert a
smart key into the ignition switch.
If you do not intend to drive your vehicle for a long time, push
the cancel switch to deactivate the smart key system.
INFORMATION
The smart key system will be deactivated in the
following cases:
 The key cancel switch is turned on.
 The smart key is inserted into the ignition switch.
 The battery of the smart key is discharged. (In this
case, the indicator on the smart key does not blink
even if you push a button on the key.)

FCC ID: MOZRO1TY1MADE IN JAPAN
FCC ID: NI4B11UE MADE IN JAPAN
FCC ID: PENASAT1 MADE IN JAPAN
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.
KEYS AND DOORS
35
For vehicles sold in U.S.A.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.
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
different from that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV
technician for help.

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
39
Adjusting the volume of beeps
11L340b
You can adjust the volume of the beeps which confirm the
locking or unlocking the doors or remind you when the
doors are not completely closed.
Turn the volume adjustment knob counterclockwise to
increase the volume or clockwise to decrease it. The beep
sound is completely deactivated when you turn the knob
clockwise until you hear a click.
INFORMATION
The volume of the smart key system alarm is not
adjustable.
Unlocking the trunk lid
11L238b
 1Type A 2Type B
When you keep the button pushed for about 1 second, you
can unlock the trunk lid.* One beep sounds.
This function does not work when the ignition switch is in the
“ON” position.
NOTE:
* The operation method can be changed.
Ask your Lexus dealer for details.

KEYS AND DOORS
40
Sounding an alarm*
11L239
 1Type A 2Type B
When you keep the “PANIC” button pushed for about 2 to
3 seconds, 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 switch 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 operated using a
wireless remote control key from outside the vehicle.*NOTE:
* The windows can be deactivated. The moon roof can be
set to slide open or tilt up or deactivated.
Ask your Lexus dealer for details.
11L240a
 1 Type A 2Type B
Push the “UNLOCK” button until the windows and moon roof
start to move. At this time one beep sounds. When you
release the button, the windows and moon roof stop operating.
This function will work even with the window lock switch
pressed in.

FCC ID: HYQ12BBKMADE IN JAPAN
FCC ID: NI4B11UEMADE IN JAPAN
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.
KEYS AND DOORS
41
For vehicles sold in U.S.A.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.
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
different from that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV
technician for help.