[dodgy]

Had a bit of a shock driving down to London yesterday - my TMC turned from the familiar crossed out red, to GREEN.

Only stayed like that for a minute or two .. any idea what could have happened?

 

[PetrolDave]

I had this happen in Kent last November.

Either there is some test transmissions that the RNS-E can decode, or it's picking up signals from foreign TMC stations.

 

[GeoffW]

Happened to me on Sunday on a bleak road just outside Bentham, close to the Yorkshire Dales, not sure it would have navigated me round the sheep that were wandering on the road!!