I would let the dealer fix it. But I know they have to get authorization from Gulf Stream. I believe they might have to change the whole length of that panel. But I would not let them off the hook, I would be on that phone constantly putting pressure on them to fix it. That is a brand new trailer.
2002 Gulf Stream Scenic Cruiser
2018 Buick Envision Essence
Neway Freightliner chassis
Aventa II Blue Ox