I just purchased a new 2015 RV and before delivery we did a quick walk through. We found a few issues that the dealer fixed, they told us to take it out for a weekend and make a list of all the thing...
Agree with the others. Since it is new, make a comprehensive list and have the dealer fix them all (unless you want to fix them yourself.... some folks elect to fix simple things rather than go through the incontinence of taking it back to a dealer).
Too late now but a better option would have been do a thorough inspection, list all the defects you could see/detect, then make the sale on condition of all of them being fixed before you gave them any money.