Slide Trim Separating from Wall Exterior

[mwdilday]

I have a 2018 Cedar Creek with full body paint. The trim around the slide wall on the outside seems to not be attached to the wall. Normally they appear flush but if I push in on the wall next to the trim I can get a 3/8" gap very easily. The surfaces where they mate are white and it appears that there was some sort of adhesive between them. I am wondering what I would use to either just caulk to keep water out of if I should use some sort of adhesive and inject it in there to hold it then caulk. I have attached photos.