Oh. I was simply referring to your comment:

You said:
"Just for clarification as I just installed the hitch a week ago on my 2005 and did not take to the dealer to program - the trailer lights work (which I would assume would work whether the dealer did the programming or not) and the PDC seems to disable when my trailer is attached (non-brake so can't tell if braking system is functional and hard to tell whether the trailer sway control is functioning or not? What gets activated by the dealer "programming"?

To which I replied:
"Didn't you just answer your own question."

THAT is what gets activated by the dealer programming.... the trailer sway control.