No GPS and no Iphone sync

Had a strange issue the other day. I had a little "no GPS" symbol in the corner of the nav map and my phone would not sync. I drove for an hour with no change. The GPS was scrolling but it was way off....kinda funny since it looked like I was driving through fields and lakes. I stopped and restarted the truck with no change. 2 hours later after a few start and stops I noticed it was back to normal and phone was synced. Anybody experience this or know a way to reboot to clear. I almost tried master reset but figured that would just clear my info.

that’s a new one on me. I have had the display not activate once, and as you experienced after couple restarts, back to normal.

My vote: Software gremlins.