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Buick Lucerne Owner Manual - 2011
Programmable Automatic Door
Locks
Your vehicle is programmed so that, when the doors are
closed, the ignition is on, and the shift lever is moved
out of P (Park), all the doors will lock. The doors will
unlock every time you stop the vehicle and move the
shift lever into P (Park).
If someone needs to get out while your vehicle is not in
P (Park), have the person use the manual lock knob or
power door lock switch. When the door is closed again,
it will not lock automatically. Use the manual lock knob
or power door lock switch to lock the door.
If your vehicle has a Driver Information Center (DIC),
you can choose various lock and unlock settings. For
programming information, see DIC Vehicle
Customization on page 4‑56.
Rear Door Security Locks
Rear door security locks prevent passengers from
opening the rear doors from the inside.
The rear door security
locks are located on the
inside edge of each rear
door. The rear doors must
be opened to
access them.
To use the lock:
1. Insert the key into the security lock slot and turn it
so the slot is in the horizontal position.
2. Close the door.
3. Do the same for the other rear door.
To open a rear door when the security lock is on, do the
following:
1. Unlock the door using the Remote Keyless Entry
(RKE) transmitter, if the vehicle has one, the power
door lock switch, or by lifting the rear door
manual lock.
2. Open the door from the outside.
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