Originally Posted by mnguy55
From what I remember playing with it on the truck I drove (not the one I’m buying which they are supposed to be getting from another dealer tomorrow) you could only change which ducts were being used on the touch screen. For instance if you wanted it all on the floor or split between floor and dash or on the windshield? There was no knob for that with the 8.4. Maybe I'm wrong here.
That is correct. If the 8.4A(N) were to stop working you'd lose some AC functionality as there are only redundant controls for some features.
My 8.4AN is working fine at the moment (knock on wood) but I'm no fan of having so many features and settings dependent upon it. If it craps out there are all kinds of little things you won't be able to adjust until you get it repaired/replaced.
I wish they simply would have saddled it with only infotainment control and not tried to make it a required component for so many other things to function, especially since it doesn't have a flawless service history.
Then there's the fact that a touchscreen is the worst possible interface for a driver to have to use, though that is something that most manufacturers haven't figured out yet.