2004 Lexus GX470 key battery

KEYS AND DOORS
15
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 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 batteryº
on page 18. 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
18
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.
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 to prevent small children
from swallowing the removed battery or components.
NOTICE

When replacing the battery, be careful not to lose the
components, screws and O-ring.

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
19
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
20
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 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 O-ring.
5. Install the lid with the 2 screws.
NOTICE
Take care not to damage or bend the O-ring 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

KEYS AND DOORS
25
Back door stopper

1Lock2Unlock
For your safety, lock the back door with the door stopper
when you fully open the back door.
When closing the back door, check that the back door stopper
is unlocked.
CAUTION
When keeping the back door open, use only the lock
lever of the back door stopper without touching the
other parts.
To avoid serious personal injury, make sure not to get
your hands caught in the back door stay when
closing the back door.
THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors or hood is forcibly
unlocked or the battery terminal is disconnected and then
reconnected while the vehicle is locked.
The alarm blows the horn intermittently and flashes the
headlights, tail lights and turn signal lights.
Further more when the center interior light switch and personal
light switch are in the DOORº position, the center interior light
and personal lights turn on.

KEYS AND DOORS
26

Security indicator light
Setting the system
1. Turn the ignition key to the LOCKº position and
remove it.
The engine immobilizer system causes the indicator light to
flash.
2. Close and lock all the doors and hood using an ignition
key or wireless remote control.
If you lock them with wireless remote control, the turn signals
flash once.
The flashing indicator light will remain on when all the doors
and hood are closed and locked.
3. After 30 seconds, the indicator starts flashing and the
system is set.
Cancelling the system
When you unlock any door using an ignition key or
wireless remote control, the system is cancelled.
If you unlock any door with wireless remote control, the turn
signals flash twice.
Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:
Unlocking any door without using an ignition key or wireless
remote control.
Opening the hood and any doors forcibly.
Reconnecting the battery.
If the battery becomes discharged due to the vehicle being
unused for a long time, etc., when the battery is recharged or
replaced, the system will give the alarm. If this happens,
immediately unlock any of the doors with the key or the
wireless remote control, and the alarm will stop.
If any door is unlocked and the ignition key is not in the ignition
switch during the alarm sounding, its door is automatically
locked.
To stop the alarm: Use either of the following methods.
Unlock the door using an ignition key or wireless remote
control.
Turn the ignition switch on.

KEYS AND DOORS
27
Testing the system
1. Open all the windows.
2. Set the system as described above.
The front doors should be locked with the ignition key or
wireless remote control. Be sure to wait until the indicator light
starts flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.4. Unlock any of the doors with a key or the wireless
remote control to cancel the system.
5. Repeat this operation for the other doors and hood.
When testing the hood, also check that the system is activated
when the battery terminal is disconnected and then
reconnected.
If the system does not work properly, have it checked by your
Lexus dealer.
NOTICE
Disconnecting the battery may result in the erasure of
information you have set in the computer memory. After
reconnecting the battery, check that the memorized
data has been retained. If it has been erased, input it into
the computer once more.

SWITCHES
30When the headlights are on, they automatically turn off about
30 seconds after any side door is opened and closed with the
ignition key turned to the ACCº or LOCKº position.* If you
want to turn off the lights immediately, push the LOCKº button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the LOCKº button on the
wireless remote control key with all the doors locked.
NOTE:
* The time before turning off the lights can be changed.
Ask your Lexus dealer for details.
If any of the side door is kept opened, the lights automatically
turn off after 30 minutes.When the headlight switch is on with all the doors locked,
pushing the LOCKº button on the wireless remote control key
turns off the headlights.
If you are going to park for over one week, make sure the
headlight switch is off.
Daytime Running Light System
The daytime running light system make your front turn signal
lights turn on when the parking brake is released with the
engine started and the headlights are turned off. They will not
go off until the ignition switch is turned off.
NOTICE
To prevent the battery from being discharged, do not
leave the lights on longer than necessary when the
engine is not running.