Buick 2005 Century - Manual (Page 72)

Programming the LOCK Command
One of four modes can be selected to confirm a
LOCK command.
Mode 1 (One Chime): No Verification
Mode 2 (Two Chimes): Horn Chirp
Mode 3 (Three Chimes): Headlamps Flash
Mode 4 (Four Chimes): Horn Chirp and
Headlamps Flash
The vehicle was originally programmed to Mode 3.
The mode may have been changed since then.
To determine the current lock mode, or to change the
lock mode, do the following:
1. Close all doors and turn the ignition key to RUN.
2. Press and hold the power door lock switch in
the LOCK position.
3. While holding the power door lock switch in the
LOCK position, press and release the remote
keyless entry transmitter LOCK button.
A series of one to four chimes will sound,
corresponding to the current lock mode.
4. Press the remote keyless entry transmitter LOCK
button to advance to the next lock mode.
If cycled beyond Mode 4, the vehicle will enter
Mode 1.
5. To set a mode, release the power door LOCK
switch after the chime sequence of the desired
mode is heard.
Programming the UNLOCK Command
One of four modes can be selected to confirm an
UNLOCK command.
Mode 1 (One Chime): No Verification
Mode 2 (Two Chimes): Horn Chirp
Mode 3 (Three Chimes): Headlamps Flash
Mode 4 (Four Chimes): Horn Chirp and
Headlamps Flash
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