Now that I keep looking at the picture (which someone pointed out elsewhere says "GM CONFIDENTIAL" in the bottom left

) any ideas/thoughts on the following:
1. Directly to the left of the nav screen, is that circular item a 4X4 selector?
2. Are the buttons below that our familiar TC2, Tow/Haul, and Air suspension?
3. What is to the left of the drivers right side air vent? (Shift selection indicator?)
4. Left of the steering wheel on the dash, is that an SUT window control?
Looking more, I don't like the corporate steering wheel much....