2005 Lexus ES330 light

KEYS AND DOORS
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When starting the engine, do not use the key in
proximity with other transponder keys (including the
flat key and 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 the flat
key and keys of other vehicles) from the ring or while
gripping or covering them with your hand to start the
engine. 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 and 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.

KEYS AND DOORS
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ENGINE IMMOBILIZER SYSTEM
Type A
Type B 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.
For 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.

KEYS AND DOORS
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WIRELESS REMOTE CONTROL
1Locking the doors and sounding an alarm
2Indicator light
3Unlocking the trunk lid
4Unlocking the doors
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 battery”
on page 21. 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 323.)
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.

KEYS AND DOORS
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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, one beep sounds 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.
Make sure all the doors are locked when you leave the vehicle.
Push the “LOCK” button once again.
NOTE:
* The turn signal lights can be set not to flash and the 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.
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 19.
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.*
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 key is in the “ACC” or “ON” position. For\
further information, see “Illuminated entry system” on page 73.
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.
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 again.
NOTE:
* The turn signal lights can be set not to flash and the beep
volume can be changed.
** The duration of lighting can be changed.
*** The time before automatic relocking can be changed.
Ask your Lexus dealer for details.

KEYS AND DOORS
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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 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 button on the wireless key, make sure
the indicator light comes on.

KEYS AND DOORS
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Locking with rear door childprotector
1Unlock2Lock
Whenever small children are in the vehicle, lock the rear
door so that it does not open by the inside door handle.
To do this, move the lever to the lock position as shown on
the label next to the lever.
THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors, trunk 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.
After the alarm is activated, when you unlock any door using
an ignition key or wireless remote control, the tail lights turn on
for about 2 seconds to inform you that the system was
activated.

KEYS AND DOORS
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Security indicator light (type A)
Security indicator light (type B)
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, trunk and hood using an
ignition key or wireless remote control.
If you lock them with wireless remote control, the turn signal
lights flash once.
The flashing indicator light will remain on when all the doors,
trunk 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 or trunk using an ignition key
or wireless remote control, the system is cancelled.
If you unlock any door or trunk with wireless remote control, the
turn signal lights flash twice.

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Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:
Unlocking any door or trunk without using an ignition key or
wireless remote control
 Opening the hood forcibly
 Reconnecting the battery
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.
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.