2002 Ford F150 Owner Guide 4th Printing - Page 104

Locks and Security Locking the doors Press this control to lock all doors. To confirm doors are closed and locked, press this control a second time within three seconds. The door(s) will lock again, the horn will chirp once and the lamps will flash. If any of the doors are open or ajar, the horn will make two quick chirps, reminding you to properly close the doors. Power door lock disable feature This feature will help protect your vehicle from unauthorized entry. The UNLOCK function on the power door control will not operate with the ignition OFF and twenty seconds after the doors are closed and electronically locked by the remote entry transmitter, key pad, or power door control (if pressed while the door was open). The UNLOCK function will operate again after you unlock the vehicle using the remote entry transmitter or key pad, turn the ignition to ON, or open the door from inside of the vehicle. Deactivating/activating power door lock disable feature This feature may be deactivated/activated by an authorized dealer. Sounding a panic alarm Press this control to activate the alarm. To deactivate the alarm, press the control again or turn the ignition to ACC or ON. Panic alarm will only operate with the ignition in the OFF position. Replacing the battery The remote transmitter is powered by one coin type three-volt lithium battery CR2032 or equivalent. Typical operating range will allow you to 104