2005 LEXUS LS430 key

KEYS AND DOORS
27
11L234a
Ignition on/off reminder alarm
If you push the lock button on the outside door handle
without turning off the ignition switch, an alarm sounds
for 2 seconds and the doors will not lock.
Before you push the lock button, make sure the ignition switch
is in the “LOCK” position.
11L235b
 Open door warning
If you push the lock button on the outside door handle
while any door is not completely closed, an alarm sounds
for 10 seconds and the doors will not lock.
To stop the alarm, close all the doors securely or push the
“UNLOCK” button on the smart key.
Before you push the lock button, make sure all the doors are
securely closed.

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
29
INFORMATION
When unlocking the door(s), be sure to take hold of
the back side of the outside door handle firmly as
shown in the illustration. Taking hold of the handle
with a gloved hand might cause a delay in unlocking
or may not unlock.
 When you take hold of the handle to unlock the
door(s), be sure to confirm that the door(s) has(have)
been unlocked. If the emergency flashers flash twice,
two beeps sound outside the vehicle and the key
indicator starts blinking, the doors are unlocked. At
this time, you can pull the outside door handle to
open the door. If you quickly move closer to the
vehicle or pull the outside door handle quickly, the
doors might not unlock. If you cannot open the door
by pulling the outside door handle at this time, push
it back to the original position and then pull it out
again.
 If you bring the smart key very close to the outside
door handle, the doors might not unlock.
 If another person who is not carrying a smart key
takes hold of an outside door handle when you are
within the effective range of the smart key system, the
door(s) may not unlock.
 If a large amount of water is applied to the outside
door handle during heavy rain or a car wash, and
someone ca rrying a smart key is near the vehicle, the
door(s) might be unlocked. However, if the outside
door handle is not pulled out, the doors will lock
automatically after about 30 seconds.

KEYS AND DOORS
30
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.
Changing the doors to be unlocked
11L214
 1Unlocking a single door 2Unlocking all the doors
3
Unlocking side doors
When you push the “LOCK” button together with the
“TRUNK” button on the smart key for about 5 seconds
with the ignition switch off, you can change the settings
for door unlocking.
The settings will change from the door on which you take hold
of the outside door handle, to all the doors, to the doors on the
side closest to the smart key, and then back to the door on
which you take hold of the outside door handle.
After setting, a tone sounds and the multi −information display
shows which setting is selected. Outside the vehicle, one beep
sounds when a door is set to be unlocked, 2 beeps sound when
side doors are set, and 3 beeps sound when all the doors are
set.

KEYS AND DOORS
31
INFORMATION
If you get in the vehicle from the driver’s door using a
smart key while the side doors or one door is set to be
unlocked, all the smart unlocking controls activated by
the smart key will be stopped for security. If you get out
of the vehicle from the driver’s door carrying the smart
key and reaches out of the effective range of the smart
key system, unlocking control by the smart key will be
possible. However, unlocking control may not be
carried out for 5 seconds after you get out from the
vehicle. In this case, perform unl ocking operation again
after 5 seconds.
Unlocking the trunk lid with smart key system
11L236b
When you push the trunk button on the trunk lid while
carrying a smart key, the system allows you to unlock the
trunk lid without the key being inserted into the keyhole.
INFORMATION
If you bring the smart key close to the center of the
bumper, the trunk lid might not unlock.

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.)