I thought this was going to be a larger issue for me at first, but hasn't been until I throw a set of Toyo's on it (65psi max, but will run at 50/55), my factory tires are sitting at 65psi in the rear and 70 in the front. No light.

Like 8iron said, a dealer can do, it's if they will. It's ridiculous if you ask me, the TPMS nonsense is for cars under 10k GVWR from what I've read, so for us SD owners over that, they should move it to whatever we want. They even offer TPMS delete now on the '12's (fleet only, but still....).