I was out for a ride today and activated the Nav screen. The map screen appeared on the screen and moved and rotated as we drove along but the map showed us about 50 miles from our actual location. Also the term "GPS" noted on the screen had a red "X" over it (which I assume means it hasn't locked onto GPS satellites). Upon returning home I contacted the tech on GM's Live Chat and was told the GPS should update the satellites on its own (even while sitting my garage), but I wonder about that. I bought the car last week so if needed to update the satellites, I would think it would have done so by now, or at least during the last hour of driving it. Has anyone noticed this when they first bought their C7?