Mercury 1996 Sable Manual page 154

Central Locking
When you are unlocking the driver or front
passenger door with the key, turn it once
toward the front of the vehicle to unlock that
door only. Turn the key a second time to unlock
all doors. Turn the key once toward the rear of
the vehicle to lock all doors.
Lock Disable
The lock disable feature helps prevent you from
locking the keys in your vehicle. With the key in
the ignition (in any switch position) and the
driver's door open, the driver's door cannot be
locked using the front door power lock switch.
Your vehicle can still be locked, while the key is
in the ignition, by manually pressing down the
lock button.
Power liftgate lock — wagon (If equipped)
The power liftgate lock is on the right inside
trim panel in the cargo area. When this lock is
pressed, all doors and the liftgate lock.
The power liftgate lock
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