FORD 2012 F-550 v.3 - Manual (Page 139)

The autolock feature repeats when:
• any door is opened then closed while the ignition is in the on position
and the vehicle speed is 9 mph (15 km/h) or lower, and
• the vehicle then attains a speed greater than 12 mph (20 km/h) for
greater than two seconds.
Deactivating/activating autolock feature
There are four methods to enable/disable this feature:
• Through your authorized dealer,
• by using a power door unlock/lock procedure,
• using a keypad procedure (if equipped), or
• or by using the instrument cluster message center (if equipped). Refer
to Message center in the Instrument Cluster chapter.
Note: The autolock feature can be activated/deactivated independently
of the autounlock feature.
Power door lock switch autolock enable/disable procedure
Before starting, ensure the ignition is in the off position and all vehicle
doors are closed. You must complete Steps 1–5 within 30 seconds or the
procedure will have to be repeated. If the procedure needs to be
repeated, wait a minimum of 30 seconds before beginning again.
1. Place the key in the ignition and
turn the ignition to the on position.
2. Press the power door unlock
control on the door panel three
times.
3. Turn the ignition from the on
position to the off position.
4. Press the power door unlock control on the door panel three times.
5. Turn the ignition back to the on position. The horn will chirp one time
to confirm programming mode has been entered and is active.
6. To enable/disable the autolock feature, press the unlock control, then
press the lock control. The horn will chirp once if autolock was
deactivated or twice (one short and one long chirp) if autolock was
activated.
7. Turn the ignition to the off position. The horn will chirp once to
confirm the procedure is complete.
Locks and Security
139
2012 F-250/350/450/550 (f23)
Owners Guide, 3rd Printing
USA (fus)