I had a similar problem with my 17 F Type SVR. The backup camera, blindside monitors, garage door opener, and front parking brake warning buzzer all quit working at the same time. Everything else was fine and car continued to be a beast. But I bought the car at a dealer and I had 8 months of original factory warranty, and wanted the stuff to work. I did pay for a car that worked. After two long stays at the deal totaling 87 day, they finally did what it told them the first day. They replaced the fuse box that is by the drivers left knee and the the wiring bundle that went to it. Problem solved. I am now under a one years Certified Pre Owned Warranty and I have been led to believe this does not cover as much as a new car warranty.
First think I would do is check if all the malfunctioning systems are on the same fuse box. Then you have several options:
1.) Buy a new one. But if this not the problem the dealer will not take the electrical component back.
2.) Find a used one. This will be cheaper but there will be the chance the used one is defective too.
My dealer spent over $15,000 fixing my SVR. $11,000 was for a Mustang Convertible for 87 days. I don't know what a fuse box cost. The one near the drivers knee is a smaller one.
That's my experience. Now I have all parts working and I am still loving my Jag.