Mercury 1996 Sable Manual page 159

The doors may not lock automatically at the
correct time if the driver:
shifts through gears without pressing the
brake
shifts through gears quickly after starting the
vehicle
releases their foot from the brake while
someone has stepped out of the vehicle for a
moment
You can deactivate the system by using the
buttons for the keyless entry system if you don't
want to use the Autolock feature.
To deactivate the Autolock system:
1. Enter your permanent five-digit entry code
(not the user code you may have set).
2. Within 5 seconds, press and hold 7/8.
3. Within 5 more seconds, press and release
3/4.
4. Release 7/8.
To reactivate the Autolock system, simply repeat
the instructions for deactivating the system. By
re-entering the code that deactivates the
Autolock, the keyless entry system reinstates the
Autolock feature.
You can also deactivate or reactivate the
Autolock feature by this method:
1. Make sure the anti-theft system is not armed
or triggered, ignition is off, and all doors
and liftgate are closed.
2. Turn the ignition key from OFF to RUN.
3. Press the door power unlock button 3 times.
4. Turn the ignition key from RUN to OFF.
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