lock BUICK CENTURY 1998 User Guide

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The ignition key is for the
ignition only.
The door key is for the
doors and all other locks.When a new vehicle is delivered, the dealer removes the
bar
-coded key tags from the keys, and gives them to the
first owner.
Each tag has a code on it that tells your dealer or a
qualified locksmith how to make extra keys. Keep the
tags in a safe place. If you lose your keys, you'll be able
to have new ones made easily using the tag. If you
misplace your tag, go to your dealer for the correct key
code if you need a new ignition key.
NOTICE:
Your vehicle has a number of features that can
help prevent theft. But you can have a lot of
trouble getting into your vehicle if you ever lock
your keys inside. You may even have to damage
your vehicle to get in. So be sure you have
extra keys.

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Door Locks
CAUTION:
Unlocked doors can be dangerous.
Passengers -- especially children -- can easily
open the doors and fall out. When a door is
locked, the inside handle won't open it.
Outsiders can easily enter through an unlocked
door when you slow down or stop your vehicle.
This may not be so obvious: You increase the
chance of being thrown out of the vehicle in a
crash if the doors aren't locked. Wear safety belts
properly, lock your doors, and you will be far
better off whenever you drive your vehicle.
There are several ways to lock and unlock your vehicle.
From the outside, use your door key.
If your vehicle has a theft
-deterrent system and it is
activated, unlock the doors only with the key or remote
keyless entry system. This will avoid setting off
the alarm.
To lock the door from the inside, move the lock control
on the door forward.
To unlock the door, move the lock control toward the
rear of the vehicle. There is a red mark on the lock
control which shows when the door is unlocked.
Central Door Unlocking System (Option)
If the driver's door key is held in the unlock position for
more than one second, both doors will unlock.

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2-5 Power Door Locks
Press the power DOOR
LOCK/UNLOCK switch
to lock or unlock both
doors at once.
Door Ajar Reminder
If one of the doors on your vehicle is not closed
properly, the DOOR AJAR light on the instrument panel
will come on and stay on until the doors are closed and
completely latched.
Memory Door Locks
This is a Personal Choice feature that programs your
door locks to automatically lock or unlock.
Close the doors and turn on the ignition. Every time you
move the shift lever out of PARK (P), all of the doors
will lock. And, every time you stop and move the shift
lever into PARK (P), the doors will unlock. If someone
needs to get out while you're not in PARK (P), have that
person use the manual or power lock. When the door is
closed again, it will not lock automatically. Just use the
manual or power lock to lock the door again. If you
need to lock the doors before shifting out of PARK (P),
use the manual or power lock button to lock the doors.

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Customizing Your Memory Door Locks Feature
You can program the memory door locks feature to
change to the following modes:
Mode Operation
0 No automatic door lock or unlock.
1 Both doors automatically lock when shifted
out of PARK (P). No automatic door unlock.
2 Both doors automatically lock when shifted
out of PARK (P). Only the driver's door
automatically unlocks when shifted into
PARK (P).
3 Both doors automatically lock when shifted
out of PARK (P). Both doors automatically
unlock when shifted into PARK (P).Vehicles are delivered programmed in Mode 3.
To change the modes:
1. Close both doors and turn the ignition on. Keep both
doors closed throughout this procedure.
2. Press and hold LOCK on the driver's power door
lock switch through Step 4.
3. Press the LOCK button on the remote keyless entry
transmitter. The memory door locks will remain in
the current mode.
4. Press the LOCK button on the transmitter again.
Each time the transmitter's LOCK button is pressed,
the mode will advance by one, going from Mode 3
to 0 to 1, etc.
NOTE: The door locks will cycle according to the
mode entered while customizing memory door locks.
(Mode ª0º has no feedback.)
5. Release the power door lock switch. The memory
door locks will remain in the most recent
mode selected.
This procedure changes the mode for only the
transmitter used to change this setting. The procedure
will need to be repeated for the second transmitter.

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2-7 Delayed Locking
This Personal Choice feature lets the driver delay the
actual locking of the vehicle. When the power door lock
switch is pressed with the key removed from the ignition
and the driver's door open, a chime will sound three
times to signal that the lock delay mode is active. When
both doors have been closed, the doors will lock
automatically after five seconds. If either door is opened
before this, the five
-second timer will reset itself once
both doors have been closed again.
Pressing the door lock switch twice within two seconds
will override this feature.
Personal Choice Programming
The delayed locking feature can be turned on or off for
each driver's remote keyless entry transmitter.
To turn the feature on:
1. Press and hold LOCK on the driver's power door
lock switch throughout this procedure. Both doors
will lock.
2. Press the UNLOCK button on the transmitter to
enter the programming mode. The lock delay is still
off and both doors will remain locked.3. Press the UNLOCK button on the transmitter again.
Lock delay is now active and both doors will unlock.
4. Release the power door lock switch.
To turn this feature off, repeat this procedure.
This procedure changes the mode for only the
transmitter used to change this setting. The procedure
will need to be repeated for the second transmitter.Lockout Protection
The power door locks will not work if the key is left in
the ignition with the driver's door open. You can
override this feature by holding the power door lock
switch for more than three seconds, unless the engine
is running.
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.
If your vehicle has a theft
-deterrent system, see
ªUniversal Theft
-Deterrentº in the Index.

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Remote Keyless Entry System
You can lock and unlock
your doors or unlock your
trunk from about 3 feet
(1 m) up to 30 feet (9 m)
away using the remote
keyless entry transmitter
supplied with your vehicle.
Your remote keyless entry 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.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.

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This system has a range of about 3 feet (1 m) up to 30 feet
(9 m). At times you may notice a decrease in range. This
is normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer to
your vehicle for the transmitter to work, try this:

Check to determine if battery replacement or
resynchronization is necessary. See the instructions
that follow.

Check the distance. You may be too far from your
vehicle. You may need to stand closer during rainy
or snowy weather.

Check the location. Other vehicles or objects may be
blocking the signal. Take a few steps to the left or
right, hold the transmitter higher, and try again.

If you're still having trouble, see your dealer or a
qualified technician for service.Operation
The driver's door will unlock when UNLOCK is
pressed. If UNLOCK is pressed again within five
seconds, both doors will unlock. Pressing the UNLOCK
button will also illuminate the interior lamps. See
ªIlluminated Entryº in the Index. Both doors will lock
when LOCK is pressed.
The trunk will unlock when the trunk button is pressed
when the ignition is off. The trunk button will also work
when the ignition is on, but only while the vehicle 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 one
minute. 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 Universal
Theft
-Deterrent feature, you may also turn off the
instant alarm by unlocking the vehicle with a key.

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Remote Keyless Entry Personal Choice Features
The following list of features that are available on your
vehicle can be programmed to the driver's preference
for each transmitter.

Memory Seat and Mirrors: This feature programs
your driver's seat and outside mirrors to a set
memory position when the UNLOCK button on the
remote keyless entry transmitter is pressed.

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

Perimeter Lighting: When the UNLOCK button on
the transmitter is pressed, the headlamps, parking
lamps, back
-up lamps and cornering lamps will turn
on in dark conditions.

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

Delayed Locking: This feature lets the driver delay
the actual locking of the vehicle. When both doors
have been closed, the doors will lock automatically
after five seconds.For more detailed information and programming
instructions, refer to the Index for each individual
feature listed above.
Security Feedback
This personal choice feature provides feedback to the
driver when the vehicle receives a command from the
remote keyless entry transmitter. The following modes
may be selected:
Mode 0: No response when locking or
unlocking vehicle.
Mode 1: No response when locking; headlamps, parking
lamps and cornering lamps (if equipped) flash when
unlocking vehicle.
Mode 2: Headlamps, parking lamps and cornering
lamps (if equipped) flash when locking; no response
when unlocking vehicle.
Mode 3: Headlamps, parking lamps and cornering
lamps (if equipped) flash when locking and when
unlocking vehicle.
Mode 4: Headlamps, parking lamps and cornering
lamps (if equipped) flash and horn chirps when locking;
no response when unlocking vehicle.

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Mode 5: Headlamps, parking lamps and cornering
lamps (if equipped) flash and horn chirps when locking;
exterior lamps flash when unlocking vehicle.
Vehicles are delivered programmed in Mode 5. To
change to another mode:
1. Turn the ignition key to OFF.
2. Press and hold LOCK on the driver's power door
lock switch throughout the procedure.
3. Press the trunk button on the transmitter to enter the
programming mode. The transmitter will remain in
its current mode.
4. Press the trunk button again. Each time the trunk
button is pressed, the horn will chirp and the
transmitter will advance to the next mode.
5. Release the power door lock switch.
This procedure changes the mode for only the
transmitter used to change this setting. The procedure
will need to be repeated for the second transmitter.Matching Transmitter(s) To Your Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can be
purchased through your dealer. Remember to bring any
remaining transmitters with you when you go to your
dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock your
vehicle. Each vehicle can have only four transmitters
matched to it.
See your dealer to match additional transmitters to
your vehicle.
Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about two years.
You can tell the battery is weak if the transmitter won't
work at the normal range in any location. If you have to
get close to your vehicle before the transmitter works,
it's probably time to change the battery.

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NOTICE:
When replacing the battery, use care not to touch
any of the circuitry. Static from your body
transferred to these surfaces may damage
the transmitter.
For battery replacement, use a 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 to the left 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. Insert the new
battery as the instructions under 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
After you have changed the battery in your transmitter,
or if only the instant alarm button works, the transmitter
needs to be resynchronized to the receiver. Do this by
pressing and holding both the LOCK and UNLOCK
buttons on the transmitter for about eight seconds. You
must be within range of the vehicle.
Once the transmitter has been resynchronized, the horn
will chirp and the exterior lamps will flash once. The
system should now operate properly.