When I got my first vehicle with power windows I found the buttons for the windows and assumed I had to push them in order for the vehicle to drive forward.  I did that for awhile but one morning it was thirty below I thought I was going to run with scissors and not push the buttons.  From that day on I figured that just because something had some buttons, it didn't mean you necessarily had to use them.  But then again, it is easier to complain rather than just do a little exploration work with the software.