This is a 08 range rover with the 2010 nav disk i believe. When on the audio screen at the bottom left the touch screen button normally says "radio-sat" but about once a week it will just say "radio". I was driving down the road yesterday and the screen seemed to flash for a split second and then it did the same thing. Everything works and if i push the button when it says "radio" it will still switch to sat. It seems like some kind of programming error in the sat nav.
On a possibly related note i have had the whole sat nav radio system freeze up 2 or 3 times in the last 3 months. If i turn the truck off for a couple minutes it would return to normal.
Has anyone had this happen before?