They look like battery powered laser type puddle lamps that project an image instead of just light. Either try new batteries or just remove them, gently of course, probably double sided taped on.
Now when I woke up this morning wanting to post this topic I did wonder what kind of replies I might get, I did think of a helluva lot, I can honestly say hand on heart I didn't think I would get a reply like this!
I had puddle lights on a previous car (under the wing mirrors) and it was a nice option, but this projecting an image instead of a light I am wondering now what its gonna project...hopefully not words like "Should of bought a TT"
Funny you should mention batteries, what looks like searching for signal nowadays used to mean help to slide
Arrow just points to a push switch, can only be to the lower hard plastic area of the seat, will check tomorrow
Oh and pop off cover...
Cheers