LEXUS LX470 2006 Owner's Guide

KEYS AND DOORS
9
Flat key
11g039c
As a transponder chip is built in its key case, you can start
the engine with this key.
The flat key works in every lock.
A transponder chip for the engine immobilizer system has
been placed in the key case of the flat key. This chip is required
for the system to function correctly, so be careful not to lose this
key. If you make your own duplicate key, you will not be able
to cancel the system or start the engine.
Insert your key plate in its key case as shown. We recommend
that you always carry this with you for emergency use. Do not
leave it in your vehicle.
Starting the engine using a flat key
11x022b
1. Remove the key plate from the key case.
2. Insert the key plate into the ignition switch. The indicator
light keeps flashing.
3. Bring the key case closer to the ignition switch within 10
seconds as indicated by the arrow head. The indicator light
goes out. This means the engine immobilizer system is
automatically canceled. (For details, see “Engine immobilizer
system” on page 11.) You can put the key case away then. You
cannot cancel the engine immobilizer system if 10 seconds
have passed after you inserted the key plate. You need to
remove the key plate from the ignition switch and try it again
from the step 2.
4. Start the engine within 60 seconds after the security
indicator light goes out. You cannot start the engine if 60
seconds have passed after the security indicator went off. You
need to remove the key plate from the ignition switch and try
it again from the step 2.

KEYS AND DOORS
10
NOTICE
Do not let the key case become bent as the key plate
may fall out or become bent also.
 The flat key is designed for emergency use only.
11L021-2
When using a key containing a transponder chip,
observe the following precautions:
When starting the engine, do not use the key with a
key ring resting on the key grip and do not press the
key ring against the key grip. Doing so may prevent
the engine from starting, or may cause the engine to
stop soon after it starts.
11R055
When starting the engine, do not use the key in
proximity with other transponder keys (including
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 keys of other vehicles)
from the ring or while gripping or covering them with
your hand to start the engine.

KEYS AND DOORS
11
11G035c
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
11X514
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 “Flat key” on page 9.)

KEYS AND DOORS
12For 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.
For vehicles sold in U.S.A.
FCC ID: MOZRI20BTY
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.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment.
For 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.

KEYS AND DOORS
13
WIRELESS REMOTE CONTROL*
11X013a
1Locking the doors
2Unlocking the doors and opening the windows and
moon roof
3Indicator light
4Sounding an alarm
NOTE: *This feature can be deactivated 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, th
e battery in the key may be
discharged. If this is the 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 17. 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.
The 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 re mote control 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
14
Locking/Unlocking the doors
When you push the “LOCK” button on the key, all the
doors can be locked from outside the vehicle.
At this time, you can hear one beep and 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 and
beep volume can be changed. **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 doors are also
unlocked.*
At this time, two beeps sound and turn signal lights flash
twice.**
NOTE: *The 2step unlocking function can be changed.
**The turn signal lights can be set not to flash and beep
volume can be changed. Ask your Lexus dealer for details. 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 key is in the “ACC” or “ON” position. For further
information, see “Interior lights” on page 69.
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. This function does
not work when the ignition key is inserted.
NOTE: *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” switch is kept pressed in, the
locking or unlocking operation is not repeated. Release the
switch and then push again.

KEYS AND DOORS
15
Sounding an alarm*
11X015d
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 “LOCK”, “UNLOCK” or
“PANIC” button for about 1 second.
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 operated using a
wireless remote control key from outside the vehicle.*NOTE: *The windows and moon roof can be deactivated.
The moon roof can be set to slide open or tilt up or
deactivated. Ask your Lexus dealer for details.
11x500d
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.

KEYS AND DOORS
16For vehicles sold in U.S.A.
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.
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 differ-
ent from that to which the receiver is connected.
 Consult the dealer or an experienced radio / TV techni-
cian 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.
For vehicles sold in 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.

KEYS AND DOORS
17
Replacing the battery
When you replace the battery, prepare a lithium battery
CR2016 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 careful not to lose the
components.
 Replace only with the same or equivalent type
recommended by a Lexus dealer.
 Dispose of used battery according to the local laws.
11L0281
1. Remove the screw, and then the cover while pushing it in the
arrow direction.
11x602
2. Remove the module from the key frame.

KEYS AND DOORS
18
11x603
3. Open and remove the battery case cover using a coin.
4. Remove the discharged battery and put in 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.
5. Replace the battery case cover. 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.