FORD 2002 Explorer v.3 - Manual (Page 120)

Locking the doors/liftgate
Press this control to lock all doors
and liftgate. The doors and liftgate
will lock and the lamps will flash
once as long as all doors, liftgate,
liftgate glass are closed (also
includes hood on vehicles equipped
with Perimeter Anti-theft). If any of
these are ajar, the lamps will not
flash.
To confirm all doors are closed and
locked, press the control a second
time within three seconds. The doors will lock again and the horn will
chirp.
If any of the doors or liftgate are ajar, the horn will make two quick
chirps, reminding you to properly close all doors.
Opening the liftgate window
Press the control to open the
liftgate window.
Controls and features
120