Ford Mercury Villager 1997 Owner's Manual page 117

Controls and Features
Remote Keyless Entry System (If equipped)
If you have chosen the remote keyless entry system option for
your vehicle, you can lock or unlock the doors and liftgate without
using a key. This option will allow you to open your vehicle
using a remote transmitter from distances of up to 49 feet (15
meters) away. The remote feature will operate only when the
ignition is in the OFF position.
The transmitter can unlock the driver's door, unlock all doors,
lock all doors, and activate the vehicle's anti-theft system (if
equipped). It is designed to be carried with your vehicle key.
Remote keyless entry transmitter
By pressing the UNLOCK button on the transmitter once, you can
unlock the driver door. Pressing the UNLOCK button a second
time within six (6) seconds of unlocking the driver door will unlock
the other doors. The interior lamp will turn on and stay on for
thirty (30) seconds.
By pressing the LOCK button on the transmitter once, all the
doors will lock, the parking lamps flash twice and the horn chirps.
When the LOCK button is pushed with all the doors locked,
the parking lamps flash twice and the horn chirps to confirm that
the doors are already locked.
113