Buick 2005 LeSabre Owner's Manual page 75

Central Door Unlocking System
If your vehicle has a theft-deterrent system, all doors
will unlock if the key is held in the outside key cylinder
unlock position for more than two seconds. The
doors will also unlock if the key is turned to the unlock
position twice in three seconds.
Power Door Locks
With power door locks, you can lock or unlock all the
doors on your vehicle.
The power door lock
switches are located on
the driver's and front
passenger's door panels.
Door Ajar Reminder
If your vehicle is equipped with the Driver Information
Center (DIC), and a door is not fully closed, the DIC will
display a DOOR AJAR message. See Driver Information
Center (DIC) on page 3-47.
Delayed Locking
This feature lets the driver delay the actual locking of
the vehicle. When the driver's power door lock switch or
remote keyless entry lock button 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 delayed locking system is active. When all doors
have been closed, the doors will lock automatically after
five seconds. If any door is opened before this, the
five-second timer will reset itself once all the doors have
been closed again.
Pressing the driver's or passenger's power door lock
switch or the remote keyless entry transmitter button
again will override this feature.
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