I can't swear to it with a 2013 but I remember changing the tire size in the computer on a few trucks. Was in a area called "Programable Parameters' in the vehicle programming that is accessed through the IDS diag. computer Ford uses. It gave a choice of tire sizes and revolutions per mile choice.
The "programmable parameters" area had things like daytime running lights, police dark modes and stuff like that.
99 Dutch Star Spartan 300 Cummins,Toad 06 Matrix
31 Model A , 2007 Road Glide, 56 Chevy Handyman station wagon (in Progress)
DW Suzie and Georgia Newfie,Cleo Mastiff