Tow Assist
I had my hitch electrics installed at the dealer. When I got it back there were still no Tow Assist features available on the screen. The dealer could not figure this out, but after a few weeks agreed that they needed to do some computer update to enable the Tow Assist features. Now it works fine.
I have seen other posts where people installed their own tow electrics, but the dealer still has to update the car configuration file in the truck's computer to enable the Tow Assist features, and they charge around $50 (?) to do it. Just something to keep in mind.