Auxiliary Switch Menu Display - Police Package
WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The IPC receives the auxiliary switch status from the Generic Function Module (GFM). When an auxiliary switch is turned on, the Generic Function Module (GFM) sends the police auxiliary switch display message to the IPC , which displays a switch image in the message center, changing the display from gray to blue to indicate the status.