Before I got the 67A update I had two modes of Tow/Haul. Push the button once, and the indicator illuminated yellow. Push it again and it turned green. I remember reading that one of the modes was called automatic; I don't remember what the other was or what the difference was between the two. I got the 67A update a couple days ago. Now I only have one mode, the one with the yellow indicator. Is this because of 67A or is something else going on? Where did I read about the different modes? I can't find anything in my manual now.