Power Door Locks; Programmable Automatic Door Locks - Buick 2005 Century Owner's Manual

Power Door Locks

The rear doors do not have power door lock switches.
Programmable Automatic
Door Locks
Programmable power door locks are intended to provide
enhanced security and convenience by automatically
locking and unlocking doors under certain conditions.
The doors can be set to one of four operating modes.
The vehicle has front
power door lock switches.
Press the top portion of
a door lock switch to
unlock or the bottom
portion to lock all doors.
Mode 1: Doors do not lock or unlock automatically
when the transaxle is shifted out of or into PARK (P).
Mode 2: All doors automatically lock when the
transaxle is shifted out of PARK (P), but do not unlock
automatically when the transaxle is shifted into PARK (P).
Mode 3: All doors automatically lock when the transaxle
is shifted out of PARK (P) and automatically unlock
when the transaxle is shifted into PARK (P).
Mode 4: All doors automatically lock when the transaxle
is shifted out of PARK (P) but only the driver's door
automatically unlocks when the transaxle is shifted
into PARK (P).
The vehicle was originally programmed to Mode 3.
The mode may have been changed since then.
To determine the current mode, or to change the mode,
do the following:
1. Turn the ignition key to RUN.
2. Close all of the doors.
3. Apply the brakes.
4. Press and hold the power door lock switch in the
lock position.
5. Move the shift lever out of and back into
PARK (P) while holding the door lock switch
in the LOCK position.
6. Release the door lock switch to set the
desired mode.
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