I would take pictures, send them to your dealer; and ask permission (ie- tell them) that you are going to use silicone as a band-aid until you can bring it in. I agree with flyrotor that one of the reasons for paying the premium for new is to get new; however I wouldn't want to risk getting the claim denied becase you attempted to fix it yourself.
As for the leak- we also had a leak in the "mechanical room" under the one dinette seat. (Maybe a total of a 1/2 litre of water.) I tightened things by hand and it held for the camping trip; one of the things I was going to do before our next trip was some further testing.
The one thing I have found is that there will be a few minor items that come up; make a list so when you do bring it into the dealer they can address them all in one shot.
And while we are on the subject; you may want to look into the 2nd year warranty.