FORD 2002 F-550 v.2 - Manual (Page 90)

6. 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 OFF. The horn will chirp once to confirm the
procedure is complete.
SECURILOCK
ி
PASSIVE ANTI-THEFT SYSTEM
SecuriLock
௢ passive anti-theft system is an engine immobilization
system. This system prevents the engine from being started unless a
coded key programmed to your vehicle is used.
The SecuriLock
௢ passive anti-theft system is not compatible with
non-Ford aftermarket remote start systems. Use of these systems may
result in vehicle starting problems and a loss of security protection.
Automatic arming
The vehicle is armed immediately
after switching the ignition to the 3
(OFF) position.
Automatic disarming
Switching the ignition to the 4 (ON) position with a coded key disarms
the vehicle.
Key information
Your vehicle is supplied with two
coded keys. Only a coded key will
start your vehicle. Spare coded keys
can be purchased from your
dealership. Your dealership can
program your key or you can “do it
yourself.” Refer to Programming
spare keys.
3
2
1
5
4
Locks and Security
90