2006 LEXUS RX330 key battery

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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 battery”
on page 25. 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. (See
“If you lose your keys or lock yourself out” on page 525.)
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 remote 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.

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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 lose the
components.
 Replace only with the same or equivalent type
recommended by a Lexus dealer.
 Dispose of used batteries according to the local laws.
1. Remove the screw, and then the cover while pushing it in the
arrow direction.
2. Remove the module from the key frame.

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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 screw.
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 button on the wireless key, make sure
the indicator light comes on.

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BACK DOOR
Opening and closing
1Push2OpenTo open the back door, push up the back door opener and
raise the door.
If the back door will not open even pushing up the back door
opener, push it up again.
When
opening the back door, make sure that the back door will
not come down by itself.
The back door can be opened when the vehicle is stopped.
The back door can be locked or unlocked in the following ways.
 Operate the power door lock switch. (See “Side doors” on
page 27.)
 Operate the wireless remote control. (See “Wireless remote
control” on page 18.)
 All the side doors and back door are locked and unlocked
simultaneously with the driver’s door. (See “Side doors” on
page 27.)
If the battery is disconnected or run down, the back door will be
automatically locked after you reconnect, replace or recharge
the battery. Be careful not to lock your keys in the vehicle.
See “Stowage precautions” on page 490 for precautions when
loading luggage.

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POWER BACK DOOR
Opening and closing by hand
1Push2 OpenTo open the back door, push up the back door opener and
raise the door.
If the back door will not open even pushing up the back door
opener, push it up again.
When
opening the back door, make sure that the back door will
not come down by itself.
The back door can be opened when the vehicle is stopped.
The back door can be locked or unlocked in the following ways.
 Operate the power door lock switch. (See “Side doors” on
page 27.)
 Operate the wireless remote control. (See “Wireless remote
control” on page 18.)
 All the side doors and back door are locked and unlocked
simultaneously with the driver’s door. (See “Side doors” on
page 27.)
If the battery is disconnected or run down, the back door will be
automatically locked after you reconnect, replace or recharge
the battery. Be careful not to lock your keys in the vehicle.
See “Stowage precautions” on page 490 for precautions when
loading luggage.

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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 interior light switch is in the “DOOR”
position, the interior light turns on.
 Security indicator light
Setting the system
1. Turn the ignition key to the “LOCK” 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.
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.

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Cancelling the system
When you unlock any door using an ignition key or
wireless remote control, the system is cancelled.
Also, the system will be cancelled when the ignition key is
turned to the “ON” position.
Activating the system
The alarm sounds for about 1minute if any of the following are
operated:
Unlocking any door without using an ignition key or wireless
remote control.
 Opening hood and any doors forcibly.
 Reconnecting the battery.
 Hotwiring the ignition. 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 th e 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, the 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.

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Testing the system
1. Open all the windows.
2. Set the system as described above.
The side doors and back door 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.