Remote Keyless Entry (RKE) Transmitter Luggage Compartment Lid Release
WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
The RKE transmitter feature releases the luggage compartment lid when the luggage compartment release button is pressed on the RKE transmitter. The feature will operate in any ignition key position, but does become disabled after the vehicle reaches a speed of 5 km/h (3 mph) or greater.