Ford 1996 Taurus Manual page 138

Opening a door and pressing the power door
lock button to lock the doors.
Turning the driver's or front passenger's door
key to the LOCK position to centrally lock all
doors (with the doors open or closed).
If a door or liftgate (wagon) is open, the
anti-theft system is prearmed and waiting for all
doors to close. The THEFT inidcator in the
instrument panel will light continuously while
the system is prearmed.
Once all doors and liftgate (wagon) are closed, if
any were open, the system will begin a 30
second countdown to become armed. The 30
second countdown allows people who may still
be in the vehicle time to exit without triggering
the alarm. The THEFT indicator will glow
steadily until the system is armed. When the
system is armed, the THEFT indicator will begin
to flash with short flashes every 2 seconds until
the system is triggered or disarmed.
Remember, all doors and liftgate (wagon) must
be fully closed for the anti-theft system to arm.
If a door or liftgate (wagon) has been left open
or ajar, and you press the remote entry
transmitter twice to confirm the doors are
locked, two short horn chirps will warn you that
the anti-theft system is not arming.
The anti-theft system is designed to work with
the factory installed remote entry system. It may
not work with other remote entry systems.
When you get a single horn chirp by pressing
the LOCK button twice within 5 seconds on
your remote entry transmitter, you can be
assured that all doors are locked and the
anti-theft system is arming.
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