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1999 Buick Century Door Locks

 
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memphistex memphistex
New User | Posts: 3 | Joined: 03/11
Posted: 03/08/11
02:51 PM

1999 Buick Century Door Locks  Edit | Quote | Reply  

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My 1999 Buick Century door locks quit working except for the driver side door. The remote will open that door and none of the others will lock or unlock. I hope someone can help. I think I have checked all fuses.

There is a clicking noise under the dash when I try to unlock the other 3 doors.

Thanks  

waynep7122 waynep7122
Addict | Posts: 4561 | Joined: 08/09
Posted: 03/08/11
06:06 PM

this is going to require accessing a copy of the factory service manual...   or an online version... from eautorepair.net  or alldatadiy.com

i don't have the exact info at hand..  and its not on the free sites as far as i know...  

waynep7122 waynep7122
Addict | Posts: 4561 | Joined: 08/09
Posted: 03/08/11
07:15 PM

i found the century owners manual online..    

i cannot seem to post a link to it.. the antispam filter has gotten my user name on hold...

check your owners manual page 2-5 and beyond..

Programmable Automatic Power
Door Locks
Programmable Automatic Power Door Locks is a
standard feature that is intended to provide enhanced
security and convenience by automatically locking and
unlocking doors. This feature provides four operating
modes. For your vehicle, you may select and program
one of the following four operating modes:
Mode 1: No automatic door lock or unlock.
Mode 2: Automatic all-door lock when the transaxle is
shifted out of PARK (P); no automatic door unlock.
Automatic door relock when any door is unlocked,
opened and then all doors are again closed while the
vehicle is not in PARK (P) or NEUTRAL (N) and the
driver’s foot is on the brake pedal.
Mode 3: Automatic all-door lock when the transaxle is
shifted out of PARK (P). Automatic all-door unlock
when the transaxle is shifted into PARK (P). Automatic
door relock when any door is unlocked, opened and then
all doors are again closed while the vehicle is not in
PARK (P) or NEUTRAL (N) and the driver’s foot is on
the brake pedal.
Mode 4: Automatic all-door lock when the transaxle is
shifted out of PARK (P). Automatic driver’s door only
unlock when the transaxle is shifted into PARK (P).
Automatic door relock when any door is unlocked,
opened and then all doors are again closed while the
vehicle is not in PARK (P) or NEUTRAL (N) and the
driver’s foot is on the brake pedal.


The operating mode of the Programmable Automatic
Power Door Locks will be changed when the driver
performs the following sequence with the engine not
running, the doors closed and the ignition key in RUN:
1. Apply your regular brakes.
2. Press and hold the power door lock switch. While
holding the door lock switch, move the shift lever
out of and back into PARK (P).
After an initial transaxle cycle, each additional cycle
will advance the operating mode by one, starting from
the current operating mode. During this procedure, the
automatic door lock and unlock functions will operate as
defined by each mode above, providing the driver with
feedback of the current operating mode. If cycled
beyond Mode 4, the vehicle will enter operating
Mode 1. When the door lock switch is released, the
vehicle will remain in the most recent operating mode.
Disconnecting the vehicle’s battery for up to a year will
not change the programmed mode of the Programmable
Automatic Power Door Locks.
~~~~~~~~~~~~~~~~~~

Lockout Protection Feature
This feature prevents a driver who has left the key in the
vehicle’s ignition from locking the doors by using the
power door locks while any door is open. The feature
works by disabling the power door locks when a key is
in the ignition and any door is open.
You may override the Lockout Protection Feature by
holding the power door lock switch in the lock position
for more than three seconds while the key is in the
ignition and any door is open.
Remember, this feature can’t guarantee that you’ll never
be locked out of your vehicle. If you use the manual
door lock or if you don’t leave the key in the ignition,
you could still lock your keys inside your vehicle.
Always remember to take your keys with you.
Leaving Your Vehicle
If you are leaving the vehicle, take your keys, open your
door and set the locks from inside. Then get out and
close the door. (Also see “Delayed Locking” in this
section for more information.)
Remote Keyless Entry
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.
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 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
Press UNLOCK once to
unlock the driver’s door and
to turn on the interior lamps
(see “Illumination on
Remote Activation” in the
Index for more details).
Press UNLOCK again within five seconds to unlock all
the doors. To lock all doors, press LOCK. To unlock the
trunk, press the trunk symbol on the remote keyless
entry transmitter. The trunk will only unlock if your
transaxle is in PARK (P).

Instant Alarm
This feature allows you to activate an alarm by pressing
a button on the remote keyless entry transmitter. Your
vehicle’s ignition must be off for the Instant Alarm to
work. When you press the horn button on the remote
keyless entry transmitter, your vehicle’s headlamps will
flash, the horn will honk repeatedly, and your interior
lamps will illuminate, attracting attention if you need it.
The alarm will continue until:
 You press the alarm button on the RKE transmitter a
second time,
 the vehicle’s ignition is in RUN, or
 an alarm period of about two minutes has elapsed.
Security Feedback
Security Feedback provides audible and/or visible
feedback that a remote keyless entry lock or unlock
command has been received and executed. Your
vehicle’s ignition must be off for this feature to work.
You may select one of four operating modes for
reception of a lock command. You may also select one
of four operating modes for reception of an unlock
command. The selection and programming of the lock
and unlock operating modes are independent of each
other. The following modes are available for either lock
or unlock verification:
Mode 1: No Verification
Mode 2: Horn Chirp only
Mode 3: Headlamp Flash only
Mode 4: Horn Chirp and Headlamp Flash
The operating mode of the Security Feedback lock
feature will be changed when you perform the following
sequence with your vehicle’s doors closed and the
ignition key in RUN:
Press and hold the power door lock switch. While
holding the door lock switch, press and release the
remote keyless entry (RKE) transmitter lock button.
This will start the customization mode. While in the
customization mode, the feature will sound the number
of chimes corresponding to the current Security
Feedback lock mode.
Each additional press of the RKE transmitter lock button
will cause your vehicle to advance the lock mode by
one, starting from the current lock mode. If cycled
beyond lock Mode 4, the vehicle will enter lock Mode 1.
During this procedure, the feature will sound the number
of chimes corresponding to the current lock mode,
providing you with feedback. When the door lock
switch is released, the vehicle will remain in the most
recent lock mode.

The operating mode of the Security Feedback unlock
feature will be changed when you perform the following
sequence with your vehicle’s doors closed and the
ignition key in RUN:
 Press and hold the power door unlock switch. While
holding the door unlock switch, press and release the
RKE transmitter unlock button. This will start the
customization mode.
 While in the customization mode, the feature will
sound the number of chimes corresponding to the
current unlock mode.
Each additional press of the RKE transmitter unlock
button will cause your vehicle to advance the unlock
mode by one, starting from the current unlock mode. If
cycled beyond unlock Mode 4, the vehicle will enter
unlock Mode 1. During this procedure, the feature will
sound the number of chimes corresponding to the
current unlock mode, providing you with feedback.
When the door unlock switch is released, the vehicle
will remain in the most recent unlock mode.
Disconnecting the vehicle’s battery for up to a year will
not change the programmed mode of the lock and
unlock Security Feedback features.
Delayed Locking
Delayed Locking allows the doors to be locked while
passengers are exiting the vehicle. This feature also
provides a brief time period after all the doors are
closed, but before the doors are locked, in which the
doors may be reopened. Delayed Locking is user
programmable for enabling or disabling the feature.
Delayed Locking is activated when a door lock switch is
pressed while the key is not in the vehicle’s ignition, and
a door is open. The door lock switch may be either the
lock switch on the door or on the remote keyless entry
transmitter (see “Remote Keyless Entry” later in this
section for more details). The doors do not lock when
the lock switch is pressed, but instead, three chimes are
heard. These chimes indicate that the Delayed Locking
feature has been activated.
You have three actions possible once Delayed Locking
is activated:
 Cancel the Delayed Locking by pressing the unlock
switch or by fully inserting the key in the ignition.
 Override the Delayed Locking feature and lock the
doors immediately by pressing the lock switch a
second time.
 Let the Delayed Locking feature complete the
locking of the vehicle.

If you wish to let the Delayed Locking feature complete
the locking of the vehicle, no additional action is
required. The Delayed Locking feature will lock the
doors automatically after all the doors have been closed
for a period of five seconds. During this five second
period, any door may be reopened, at which time the
three possible actions shown above are again available.
You may also customize your vehicle to activate the
Delayed Locking feature as described above, or you
may choose to completely disable the feature at all
times. If disabled, the power door locks will activate
immediately when a power door lock switch is pressed.
The enabled/disabled state of the Delayed Locking
feature will be toggled when you perform the following
sequence with the doors closed and the ignition key
in RUN:
1. Apply your regular brakes.
2. Press and hold the power door unlock switch. While
holding the door unlock switch, move the shift lever
out of and back into PARK (P).
After an initial transaxle cycle, each additional cycle
will toggle the enable/disable state of the Delayed
Locking feature. During this procedure, the chime will
sound, providing you with feedback. In Mode 1, a single
chime will be heard if the Delayed Locking feature is
disabled. In Mode 2, two chimes will be heard if the
feature is enabled. When the door unlock switch is
released, the vehicle will remain in the most recent
operating mode.
Disconnecting the vehicle battery for up to a year will
not change the programmed mode of the Delayed
Locking feature.
Illumination on Remote Activation
This feature provides interior lighting when a remote
keyless entry door unlock command is received and
executed by your vehicle. Your vehicle’s ignition must be
off for the Illumination on Remote Activation feature to
work. The interior lamps will light until your vehicle’s
ignition is turned to RUN or for a period of 40 seconds has
elapsed. If a door is opened during the illumination period,
the timed lighting will be canceled, and the interior lamps
will remain on since a door is open.

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.
Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about three 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.

To replace the battery:
1. Insert a flat object like a dime into the slot on the
back of the transmitter. Gently pry apart the front
and back.
2. Remove the old battery and replace it with the new
one. (Use type CR2032 or an equivalent.) Make sure
the positive (+) side of the battery is facing down.
Do not use a metal object to remove the old battery.
3. Snap the top and bottom together, making sure the
halves are together tightly so water won’t get in.
4. Test the operation of the transmitter with your
vehicle. If the transmitter does not work, try
resynchronizing the transmitter. (See
“Resynchronization” following.)
5. Resynchronize and then test the transmitter.
Resynchronization
Resynchronization may be necessary due to the security
method used by this remote keyless entry system. The
transmitter does not send the same signal twice to the
receiver. The receiver will not respond to a signal it has
previously been sent. This prevents someone from
recording and playing back the signal from the transmitter.
To resynchronize the transmitter with the receiver, do
the following:
1. Stand close to your vehicle.
2. Simultaneously press and hold the LOCK and
UNLOCK buttons on the transmitter for about seven
seconds. The door locks should cycle (lock and
unlock) to confirm resynchronization.
If the locks do not cycle, see your dealer for service.  

memphistex memphistex
New User | Posts: 3 | Joined: 03/11
Posted: 03/09/11
06:24 AM

I have tried these.  The doors will not unlock or lock under any circumstances.

Any other ideas?  Thanks for the post.  

waynep7122 waynep7122
Addict | Posts: 4561 | Joined: 08/09
Posted: 03/09/11
06:20 PM

when all else fails.. the instruction is to take it to a dealer.. you might need to take it to an alarm specialist..  not all dealerships have a alarm specialist at all times.. some ***

some independent alarm guys know how to fix them also...

i am  taking that you have the OWNERS manual....

the factory service manual in print might be needed...

alldatadiy.com

or

eautorepair.net

may also have the info you need on their subscription sites...

alldata is owned by autozone now..

eautorepair.net is the mitchell info site owned by snap on...


remotes do fail... i have seen some displays at local autozones for replacements.. with a tester there to see if the remote is properly transmitting..  

memphistex memphistex
New User | Posts: 3 | Joined: 03/11
Posted: 03/10/11
06:21 AM

OK, thanks. I do have the owners manual.  I did find out that all doors will lock, but the drivers door will only unlock.

Thanks for your help.  

waynep7122 waynep7122
Addict | Posts: 4561 | Joined: 08/09
Posted: 03/10/11
07:12 AM

i am almost sure that i saw that drivers door only as a mode function in the owners manual.... cover section 2 well....


that is in the delayed locking section... that allows the doors to be locked individually as people exit..

work your way through the different modes....  its probably not broken.. its probably just in the wrong mode ....  

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