mattsvtcobra,
I agree, pushing that button should cycle through the different options for displaying the guidelines. Refer to my original post; in the picture, you can see that I have the guideline selected, like you, but I have no guidelines showing in the back-up view (doesnt work in the front either.) They were there, but since that hour-glass is there, no guidelines. Truck has been in the shop since Monday for the second time, I just have to wait and see what they come up with.