Shift Interlock System
WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The shift interlock system prevents the shifting from PARK unless the brake pedal is depressed. The shift interlock system consists of a shift interlock actuator mounted at the base of the steering column tube. If the ignition switch is in the RUN position, the shift interlock actuator is continually ON unless the brake pedal is depressed.