Good luck w/ warranty.....
I had a similar issue on my 2005, but it came after I replaced the plastic quick disconnect with brass; probably a bit too ham-dfiated on my part. I ended up fixing it with the loctite epoxy that's discussed as being fuel resistant in the loctite thread in the garage section. Had to order it, about $18 or so. Been fine for a few years now.
If you decide to take it apart to replace it, there's a tool for the threaded cover that cost about a $100 or so.
Good luck either way.