1997 Ford Crown Victoria Owner's Manual - Page 116

Locking the Doors with the Keyless Entry System Along with unlocking your doors, you can use the keyless entry system to lock the doors. You can also use the Autolock feature to automatically lock the doors after you get in the vehicle. To lock all of the vehicle's doors at the same time, press 7/8 and 9/0 at the same time. It is not necessary to first enter the keypad code. Autolock (With Keyless Entry if Equipped) The Autolock feature will automatically lock all the doors when: u the vehicle doors are fully closed u the ignition key is turned to the ON position u someone is sitting in the driver's seat or a heavy object is placed on the seat, and u the vehicle is in any forward or reverse gear. The Autolock feature will repeat when: u the ignition key remains in the ON position u someone remains sitting in the driver's seat or a heavy object is on the seat u a door is opened and then closed u the vehicle is in any forward or reverse gear. If you do not want to use the Autolock feature, it can be deactivated by using the buttons for the keyless entry system. 115