Buick 2000 Century Owner's Manual page 75

The operating mode of the programmable automatic
power door locks will be changed when the driver
performs the following:
1. Turn the ignition key to RUN.
2. Close all of the doors.
3. Apply your regular brakes.
4. 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 listed previously, 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.
2-6
Rear-Door Child Security Locks
1. Open one of the rear doors.
2. On the inside of the rear door will be a lock. Insert
your key into this lock and turn it upward. This will
engage the safety lock. To disengage the feature, turn
the lock downward.
3. Close the door.
4. Do the same thing to the other rear door lock.
The rear doors of your vehicle cannot be opened from the
inside when this feature is in use. If you want to open the
rear door when the security lock is on, unlock the door
from the inside and then open the door from the outside.
Your vehicle is equipped
-
with rear door child
security locks that help
prevent passengers from
opening the rear doors of
your vehicle from the
inside. To use one of
these locks: