FORD 2003 Crown Victoria v.1 - Manual (Page 82)

Locking the doors
Press this control to lock all doors.
The horn will chirp and the
parklamps/taillamps will flash to
confirm the control was pressed.
Deactivating/activating the horn chirp and flash confirmation
feature
The horn chirp and flash confirmation feature can be turned on/off
through the following procedure using the power door locks:
You must complete steps 1-7 within 30 seconds or the procedure will
have to be repeated. If the procedure needs to be repeated, you must
wait 30 seconds.
1. Turn the ignition key to ON.
2. Press the power door unlock control on the door panel three times.
3. Turn the ignition key from ON to OFF.
4. Press the power door unlock control three times.
5. Turn the ignition back to ON. The door locks will cycle lock/unlock.
6. Press the unlock control twice.
7. After a five to ten second delay, the door locks will cycle lock/unlock
to confirm successful programming.
8. Turn the ignition to OFF.
Locks and Security
82