2000 BUICK LESABRE ECU

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2-8
To Open a Rear Door When the Security Lock is On
1. Unlock the door.
2. Then open the door from the outside.
If you don't cancel the security lock feature, adults or
older children who ride in the rear seat won't be able to
open the rear door from the inside. You should let adults
and older children know how these security locks work,
and how to cancel the locks.
To Cancel the Rear Door Lock
1. Unlock the door and open the door from the outside.
2. Move the lever all the way down.
3. Do the same for the other rear door.
The rear door locks will now work normally.Lockout Protection
The power door locks will not work if the key is in the
ignition and a door is open. You can override this feature
by holding the driver's side power door lock switch for
more than three seconds.
Leaving Your Vehicle
If you are leaving the vehicle, take your keys, open your
door and set the locks from the inside. Then get out and
close the door. Or, you may also use the button with the
lock symbol on the remote keyless entry transmitter
after shutting the doors.
If your vehicle has a theft
-deterrent system, see
ªContent Theft
-Deterrentº in the Index.

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2-10 Operation
The numbers on the back of your transmitter correspond to
DRIVER #1 and DRIVER #2 on the DIC (if equipped).
For more information see ªDICº in the Index.
The driver's door will
unlock and the exterior
lights will flash twice
when the unlock symbol
is pressed.
If the unlock symbol is pressed again within five
seconds, all doors will unlock, the exterior lamps will
flash twice and the horn will sound. See ªSecurity
Feedbackº in the Index.
Pressing the unlock symbol button will also illuminate
the interior lamps. See ªIlluminated Entryº in the Index.
All doors will lock, the exterior lamps will flash once and
the horn will sound when the lock symbol is pressed.The trunk will unlock when the trunk symbol is pressed
when the ignition is in OFF. The trunk symbol will also
work when the ignition is on, but only while the
transaxle is in PARK (P) or NEUTRAL (N).
Instant Alarm
When the button with the horn symbol on the remote
keyless entry transmitter is pressed, the horn will
sound and the headlamps and taillamps will flash for up
to 30 seconds. This can be turned off by pressing the
instant alarm button again or by turning the ignition on.
If your vehicle is equipped with the Content
Theft
-Deterrent feature, you may also turn off the
instant alarm by unlocking the vehicle with a key.
Personal Choice Features
The following list of features that are available on your
vehicle can be programmed to each driver's preference
for each of the key transmitters.

Automatic Door Locks: This feature programs your
door locks to automatically lock or unlock when
shifting in and out of PARK (P).

Security Feedback: This feature provides feedback
to the driver when the vehicle receives a command
from the remote keyless entry transmitter.

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Delayed Locking: This feature lets the driver delay
the actual locking of the vehicle. When all doors
have been closed, the doors will lock automatically
after five seconds.

Perimeter Lighting: When the button with the
unlock symbol on the keyless entry transmitter is
pressed, the Daytime Running Lamps (DRL),
parking lamps and back
-up lamps will turn on.
For more detailed information and programming
instructions, refer to the Index for each individual
feature listed above.
Security Feedback
This feature provides feedback to the driver when the
vehicle receives a command from the remote keyless
entry transmitter. Feedback is only provided if all doors
are closed. One of the following modes may be selected
for each transmitter:
Mode 1: No feedback when locking or unlocking
vehicle.
Mode 2: Parking lamps, back
-up lamps and the
DRL exterior lamps will flash twice when unlocking the
vehicle and flash once when locking the vehicle.
Mode 3: Horn chirps when all doors are unlocked (second
time the button is pressed) and when locking the vehicle.Mode 4: Parking lamps, back
-up lamps and the
DRL exterior lamps will flash twice each time the
button with the unlock symbol is pressed; the horn
chirps when all doors are unlocked. Parking lamps and
the DRL exterior lamps flash once and the horn chirps
when locking the vehicle.
Feedback will be provided according to the mode that
has been selected. The exterior lamps will not flash if
the manual parking lamps are on.
Vehicles are delivered programmed in Mode 4.
To change to another mode:
1. Close all the doors and turn the ignition on.
Keep all doors closed throughout this procedure.
2. Press and hold LOCK on the driver's power door
lock switch throughout this procedure. All the doors
will lock.
3. Press the trunk button on the transmitter. The
security feedback will remain in its current mode.
4. Press the trunk button again. Each time the trunk
button is pressed, the security feedback will advance
to the next mode, and the horn will chirp.
5. Release the power door lock switch.

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2-13
For battery replacement, use one Duracell
battery, type
DL
-2032, or a similar type.
To replace the battery:
1. Insert a coin into the notch near the key ring. Turn
the coin counterclockwise to separate the two halves
of the transmitter.
2. Once the transmitter is separated, use a pencil eraser
to remove the old battery. Do not use a metal object.3. Remove and replace the battery. Replace it as the
instructions inside the cover indicate.
4. Snap the transmitter back together tightly to be sure
no moisture can enter.
5. Test the operation of the transmitter with your
vehicle. If the transmitter does not work,
resynchronize the transmitter.
Resynchronization
Pressing the transmitter buttons numerous times
(approximately 250 times) out of the vehicle's operating
range may cause the transmitter not to work. Replacing
the battery and pressing the transmitter buttons out of
range will also cause the transmitter not to work. If only
the instant alarm works, the transmitter needs to be
resynchronized to the receiver. Resynchronize by
pressing and holding both the buttons with the lock and
unlock symbols at the same time for about eight
seconds. You must be within range of the vehicle.
Once the transmitter has been resynchronized, the locks
will cycle (the horn may chirp and the exterior lamps
may flash) depending on the security feedback settings.
The system should now operate properly.

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2-14
Trunk
CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even death.
If you must drive with the trunk lid open or if
electrical wiring or other cable connections must
pass through the seal between the body and the
trunk lid:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on VENT. That will force outside air into
your vehicle. See ªComfort Controlsº in
the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Trunk Lock Release
To unlock the trunk from the outside, insert the master
key and turn it clockwise.
Remote Trunk Release and Trunk Lockout
The TRUNK PUSH OPEN
release button is on the
driver's door trim map
pocket. Push this button
to open the trunk.
The transaxle must be in
PARK (P) or
NEUTRAL (N) for
the remote trunk release
button to work.
To lock the trunk from inside your vehicle, insert the
master key and turn it clockwise to LOCK. The VALET
key will not work in this procedure.
Trunk Security Override
The remote keyless entry transmitter, will open the trunk
even if the trunk release lockout switch is in LOCK.

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2-16
Content Theft-Deterrent
(If Equipped)
If your vehicle has this
feature, it has a content
theft
-deterrent alarm
system. With this system,
the SECURITY light will
flash as you open the door
(if your ignition is off).
This light reminds you to activate the content
theft
-deterrent system when leaving your vehicle.
How to activate the system:
1. Open the door.
2. Lock the door with the power door lock switch or
with the remote keyless entry transmitter. The
SECURITY light should come on and stay on.
3. Close all doors. The SECURITY light should go off
after about 30 seconds. The alarm is not armed until
the SECURITY light goes off.If a door is opened without the key or remote keyless entry
transmitter, the alarm will go off. Your vehicle's lamps will
flash and the horn will sound for 30 seconds. The lamps
and horn will then turn off to save battery power.
Remember, the content theft
-deterrent system won't
activate if you lock the doors with a key or use the
manual door lock. It activates only if you use a power
door lock switch with a door open, or with the remote
keyless entry transmitter. You should also remember that
you can start your vehicle with the correct ignition key
if the alarm has been set off.
Here's how to avoid setting off the alarm by accident:

If you don't want to activate the theft
-deterrent
system, the vehicle should be locked with the door
key after the doors are closed.

Always unlock a door with a key, or use the remote
keyless entry transmitter. Unlocking a door any other
way will set off the alarm.
If you set off the alarm by accident, unlock any door
with your key. You can also turn off the alarm by
pressing the button with the unlock symbol on the
remote keyless entry transmitter. The alarm won't stop if
you try to unlock a door any other way.

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2-17 Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, roll down the driver's
window and open the driver's door.
2. Activate the system by locking the doors with the
power door lock switch while the door is open, or
with the remote keyless entry transmitter.
3. Get out of the car, close the door and wait for the
SECURITY light to go out.
4. Then reach in through the window, unlock the door
with the manual door lock and open the door.
This should set off the alarm.
If the alarm does not sound when it should, but the
vehicle's lamps flash, check to see if the horn works.
The horn fuse may be blown. To replace the fuse, see
ªFuses and Circuit Breakersº in the Index.
If the alarm does not sound or the vehicle's lamps do not
flash, the vehicle should be serviced by an authorized
service center.
PASS-Key
III
Your vehicle is equipped
with the PASS
-Key III
(Personalized Automotive
Security System)
theft
-deterrent system.
PASS
-Key III is a passive
theft
-deterrent system. This
means you don't have to do
anything different to arm or
disarm the system. It works
when you insert or remove
the key from the ignition.
Your PASS
-Key III system operates on a radio
frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
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.

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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 received, including
interference that may cause undesired operation of
the device.
Changes or modifications to this system by other than an
authorized service facility could void authorization to
use this equipment.
PASS
-Key III uses a radio frequency transponder in the
key that matches a decoder in your vehicle.
When the PASS
-Key III system senses that someone is
using the wrong key, it shuts down the vehicle's starter
and fuel systems. The starter will not work and fuel will
stop being delivered to the engine. Anyone using a
trial
-and-error method to start the vehicle will be
discouraged because of the high number of electrical
key codes.
When trying to start the vehicle if the engine does not
start and the SECURITY light comes on, the key may
have a damaged transponder. Turn the ignition off and
try again.If the engine still does not start, and the key appears to
be undamaged, try another ignition key. At this time,
you may also want to check the fuse (see ªFuses and
Circuit Breakersº in the Index). If the engine still does
not start with the other key, your vehicle needs service.
If your vehicle does start, the first key may be faulty.
See your dealer or a locksmith who can service the
PASS
-Key III to have a new key made.
It is possible for the PASS
-Key III decoder to learn
the transponder value of a new or replacement key.
Up to 10 additional keys may be programmed for the
vehicle. This procedure is for learning additional keys
only. If all the currently programmed keys are lost or do
not operate, you must see your dealer or a locksmith
who can service PASS
-Key III to have keys made and
programmed to the system.
See your dealer or a locksmith who can service
PASS
-Key III to get a new key blank that is a cut
exactly as a current black colored driver's key that
operates the system. Do not used a gray
-colored valet
key for this procedure.