2010 Ford F150 Regular Cab Owner Guide 3rd Printing - Page 145

Locks and Security Anti-theft indicator The anti-theft indicator is located in the instrument cluster. • When the ignition is in the off position, the indicator will flash once every two 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 normal system functionality. If a problem occurs with the SecuriLock௡ system, the indicator will flash rapidly or glow steadily when the ignition is in the on position. If this occurs, turn the ignition off then back to on to make sure there was no electronic interference with the programmed key. If the vehicle doesn't start, try to start it with the 2nd programmed key and if successful contact your authorized dealership for key replacement. If the indicator still flashes rapidly or glows steadily, the vehicle will not start, contact your authorized dealer as soon as possible for service. Automatic arming The vehicle is armed immediately after switching the ignition to the off position. 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 145