I can't tell from the photo: Is this an area where water maybe leaking into a place where it shouldn't be? If so, taking it to the dealer would give you a 'paper trail' to have hidden water damage repaired.
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.