FORD 2010 F-550 v.1 - Manual (Page 160)

Anti-theft indicator
The anti-theft indicator is located in the instrument cluster.
Vehicles equipped with the
SecuriLock
௡ Passive Anti-theft
system behave as follows:
• When the ignition is in the off
position, the indicator will flash once every two seconds for a total of
10 seconds to indicate the SecuriLock
௡ system is functioning as a
theft deterrent.
• When the ignition is in the on position, the indicator will glow for
three seconds to indicate a programmed key has been validated and
the SecuriLock
௡ Passive Anti-theft system has enabled the engine.
Vehicles without the SecuriLock
௡ Passive Anti-theft system behave as
follows:
• When the ignition is in the off position, the indicator will not flash.
• When the ignition is in the on position, the indicator will glow for
three seconds to indicate the engine is enabled.
Automatic arming
The vehicle is armed immediately after switching the ignition to the off
position.
The theft indicator will flash every
two seconds to act as a theft
deterrent when the vehicle is
armed.
Automatic disarming
Switching the ignition to the on position with a coded key disarms the
vehicle.
Replacement keys
If your keys are lost or stolen and you don’t have an extra coded key,
you will need to have your vehicle towed to an authorized dealer. The
key codes need to be erased from your vehicle and new coded keys will
need to be programmed.
Replacing coded keys can be very costly. Store an extra programmed key
away from the vehicle in a safe place to help prevent any
inconveniences. Please visit an authorized dealer to purchase additional
spare or replacement keys.
Locks and Security
160
2010 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)