My 2013 Model S has forgotten where it is - map is frozen at a location. Prior to it completely freezing up, it showed the vehicle offset a bit from the road it was on, and directions would get confused if there were other roads that aligned with the erroneous location.
So, took it in for service. They have told me that there's a nick in one of the back window traces, which is the defrost, but somehow that is used by the GPS too, so I need a new rear window. And maybe a new GPS antenna. But this seems like nonsense. What does continuity of the rear window traces have to do with the GPS, except that you might have to remove and reinstall the rear window to get to the GPS antenna - so they want me to buy a new rear window. So confused.
Am I being taken for a ride? Any other ideas for resolving a stuck GPS?