My Linoleum Repair Process
I had this same problem with a screw showing and it was repaired by the dealer, however after a year the two cut edges of the linoleum started to come up. I pulled it up a little more so I could clean under it and found out from Jayco that my 2013 Greyhawk linoleum has FELT backing, which is important to get the correct glue (I used TEC). I warmed up the linoleum with a heat gun, applied glue, and rolled it out with a linoleum seam roller, wiped off excess glue, covered it with wax paper and a plastic cutting board with a cinder block on top. I used wax paper to keep from gluing my cutting board to the floor. After 24 hours I cleaned up the seam with lacquer thinner and applied a Mannington low gloss seam sealer I bought from a linoleum shop. This helps bond the edges of the cut and keep dirt out of the crack. Lowes & Home Depot did not know what seam sealer was. It is still good after 3 years.