2009 Ford F250 Super Duty Crew Cab Owner's Manual - Page 169

Locks and Security 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. Programming spare keys A maximum of eight keys can be coded to your vehicle. Only SecuriLock™ keys can be used. To program a coded key yourself, you will need two previously programmed coded keys (keys that already operate your vehicle's engine) and the new unprogrammed key(s) readily accessible for timely implementation of each step in the procedure. If two previously programmed coded keys are not available, you must bring your vehicle to your authorized dealer to have the spare coded key(s) programmed. Please read and understand the entire procedure before you begin. 169 2009 F-250/350/450/550 (f23) Owners Guide, 3rd Printing USA (fus)