FORD 2002 F-550 v.3 - Manual (Page 84)

Unlocking the doors
Press this control to unlock the
driver’s door. The interior lamps will
illuminate.
Press the control a second time
within three seconds to unlock all
doors.
Locking the doors
Press this control to lock all doors.
If all doors are closed, the parking
lamps will flash once.
Press the control a second time
within three seconds. The doors will
lock again and the parking lamps
will flash once more. If any of the
doors are ajar, the horn will make
two quick chirps, reminding you to
properly close all doors.
Power door unlock disable feature (if equipped)
This feature will help protect your
vehicle from unauthorized entry.
The UNLOCK function on the power
door switch will not operate with
the ignition OFF and twenty
seconds after the doors are closed
and electronically locked by the
remote entry transmitter, key pad,
or power door switch (if pressed while the door was open).
The UNLOCK function will operate again after you unlock the vehicle
using the remote entry transmitter or key pad, turn the ignition to ON,
or open the door from inside of the vehicle.
Locks and Security
84