To be fair, mine is a 2006.
Yeah, I know
Even if there WAS a way to reflash it by dropping the pan and pulling the Mech unit out , I would need a file that was ready to go right out of the box.
Given the zillion revisions I made to my V6 and V8 tunes, it would be a nightmare if I had to keep pulling the pan off to get the TCU tune dialed in.