2011 Ford F450 Super Duty Crew Cab Owner Guide 4th Printing - Page 150

Locks and Security Arming the system When armed, this system will respond if unauthorized entry is attempted. When unauthorized entry occurs, the system will flash the park/turn lamps and will sound the horn. The system is ready to arm whenever the key is removed from the ignition. Either of the following actions will prearm the alarm system: • Press the control on the remote entry transmitter. • Open a door and press the power door lock control to lock all the doors, and then close the door. • Press and hold the 7 • 8 and 9 • 0 controls on the keyless entry pad at the same time to lock the doors (driver's door must be closed). There is a 20 second countdown when any of the above actions occur before the vehicle becomes armed. Each door and the hood is armed individually, and if any are open, they must be closed before the open entry point can enter the 20 second countdown. The turn signal lamps will flash once when all doors and the hood are closed indicating the vehicle is locked and entering the 20 second countdown. Disarming the system You can disarm the system by any of the following actions: control on your remote entry • Unlock the doors by pressing the transmitter. • Turn the ignition to the on position with a programmed coded ignition key. • Unlock the doors by using your keyless entry pad. • If using a key in the driver's door to unlock the vehicle, a chime will sound when you open the door and you will have 12 seconds to disarm the alarm system using any of the actions above, otherwise the alarm will trigger. Pressing the power door unlock control within the 20 second prearmed mode will return the vehicle to a disarmed state. Triggering the anti-theft system The armed system will be triggered if any door or hood is opened without using the key or the remote entry transmitter. 150 2011 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)