wmc6632

I have a 2015 Edge (the new model) and it's still under warranty. I just got the Nav SD Card fault that tells me to insert the SD Card. Removing and reinserting doesn't help. I tried a master system reset and that didn't work. The Ford Owner websites says my software was last updated in May 2015 (when the car was built) and that it is the latest. Appreciate any feedback on what to do next.