car won't shift into park on 2007 Ford Mustang

My 2007 Mustang w/automatic transmission shift into park. Can I remedy this or should I have it towed to the dealership?

Asked by for the 2007 Ford Mustang
the interlock is activated. check the brake lights to see if they work. if they dont, then either the fuse blew or the switch is bad.

I have yhe same problem what do I do to fix a blown fuse or a bad switch?