It usually means that they need a VIN number to sell them showing your FJ as a TT edition. They've required that off and on for certain wheels and parts specifically for TT FJs since the beginning. Now with the FJ no longer being sold in US they either aren't selling enough of those wheels to keep making them or they don't want to make them except for a few for replacements.
You may have to show that you have a cracked or messed up wheel to obtain one too if they are only going to have them for replacements.
Go ahead, skin it! Skin that smoke wagon and see what happens...
I'll ride in on a sunny day, Sing you a song, steal your heart away Like a cowboy Hang my hat like I'm here for awhile Kick off my boots and drive you wild Like a cowboy Well baby you know I can't stay long You wake up, I'll be gone Until then I'll hold on Like a cowboy.