1999 LEXUS SC300 alarm

KEYS AND DOORS
20In the following cases, the battery in the key may be
discharged. If this is a 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 ºReplacing the
batteryº 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.
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 on 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.
Locking/Unlocking the doors
When you push the ºLOCKº button on the key briefly, all
the doors can be locked from outside the vehicle.
At this time, you can hear one beep. However, when you push
the ºLOCKº 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 ºUNLOCKº 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 ºLOCKº button once again. If they were
already locked, the turn signal lights will flash.
NOTICE
Do not push the ºLOCKº button any longer than 2 to 3
seconds. Pushing the button longer activates an alarm.
For details, see page 22.
When you push the ºUNLOCKº 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.

KEYS AND DOORS
22
Sounding an alarm
When you push the ºLOCKº button for about 2 to 3
seconds, an alarm sounds to deter any person trying to
break into or damage your vehicle.
If you want to stop the alarm, push any button.
This function does not work when the ignition key is in the
ºONº position.
For 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.

SECTION 1 ± 7
172
INSTRUMENTS AND CONTROLS
Theft deterrent
Theft deterrent system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
172
Theft prevention labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
175
THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed to give
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 other exterior lights.

THEFT DETERRENT
173
Setting the system
1. Turn the ignition key to the ºLOCKº position and
remove it.
The indicator light flashes by means of the engine
immobiliser system.
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 signals
flash once.
The flashing indicator light changes to stay 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 signals flash twice.
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, its door is
automatically locked.

THEFT DETERRENT
174To stop the alarm: Use either of the following methods.


Unlock the door or trunk 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.