Judging by the picture, it's the countertop moulding on the outside edge of the counter. I had a similiar problem on an inside curved corner on a TT. These moulding are glued in place and this has come loose.
I'd try to soften the adhesive a bit with a hair dryer and push it back in place. If you fit the moulding back in place around that curved outside edge, it will have to be worked along each edge away from the corner. The moulding should stay in place once it's cooled and adhesive is set.
Yes, this is warranty work that should be done by the dealer, but how much inconvenience do you want to endure for a 10 minute fix. If you have a list of things that need to be addressed, by all means take it to the dealer.
Nights camped in 2013 - 55, 2014 - 105, 2015 - 63