2010 Ford Mustang Owner's Manual - Page 105

Locks and Security • Change in vehicle inclination Note: The active anti-theft system includes a motion detection system which monitors the passenger cabin and a vehicle incline sensor which detects changes in vehicle attitude. The interior motion detection and vehicle incline sensing systems will operate only when the vehicle is locked using the remote keyless entry transmitter or when using the power door lock control with the accompanying door open and all doors then become closed. For convertible vehicles, the convertible top must be in the fully closed and latched position for the interior motion sensing system to arm. If you lock the vehicle using the key in the driver door key cylinder, the system will monitor the doors, trunk, and hood but the interior motion sensing and vehicle incline sensing will not arm. Do not arm the interior motion detection system if movement within the vehicle is likely to occur. Additionally, do not arm the vehicle incline sensing system when the vehicle is in transport. For proper operation of the interior motion detection system, ensure all windows are closed prior to arming the system. This will help prevent accidental alarm activation due to external influences and ensure proper interior motion detection. Additionally, the interior motion sensing system will not arm if either door or the trunk is ajar. If there is any potential perimeter anti-theft problem with your vehicle, ensure ALL integrated keyhead transmitters are brought to the authorized dealer to aid in troubleshooting. Arming the system When armed, the active anti-theft system is designed to notify you of an unauthorized entry. When unauthorized entry or towing occurs, the system will flash the turn signal lamps and interior lamps and will sound the horn. The system is ready to arm whenever the key is out of the ignition. Any of the following actions will arm the alarm system: • Press the control on the remote entry transmitter portion of your integrated keyhead transmitter. • Lock all doors using the interior power lock switch while the driver or passenger door is open and then becomes closed. • Lock the driver door with the key in the key lock cylinder (this will not however arm the interior motion or vehicle incline sensing systems). 105