Ford 1996 Taurus Manual page 139

Disarming the system
An armed or activated system can be disarmed
if you:
Unlock the doors by pressing the remote
entry transmitter UNLOCK button.
Unlock the doors by entering the unlock code
on the keyless entry keypad.
Unlock any door or the liftgate (wagon) with
a key.
Turn ignition to the ON or ACC position.
Pressing the remote entry PANIC button will
disarm the anti-theft system only when the
anti-theft alarm is triggered and sounding.
When unlocking the vehicle with a key, turn the
key all the way to the end of its travel or the
system may not disarm.
NOTE: the flashing lights and honking horn
will shut off automatically within 2
minutes 45 seconds after the system is
triggered. It will trigger again if
another intrusion occurs.
Coded Key Anti-Theft System
If your vehicle is equipped with the coded key
anti-theft system, you can only use an
electronically coded key to start the vehicle.
During each vehicle start sequence, the coded
key is "read" by the anti-theft system. If the
key's ID code matches that in the anti-theft
system, the vehicle is enabled to start. If the
key's ID code does not match the anti-theft
system, or if no coded key is detected, then the
vehicle is not able to start. Your vehicle was
equipped with two electronically coded keys.
The coded ignition key is larger than normal
due to the electronics located in the head of the
140