Just returned from our first outing in our new (to us) 2016/15 Sunseeker 3050 (unit is ex-rental with 13000 miles) noticed crack on upper right rear corner of main slide. I believe we have past the 1 year warranty from Forest River. I have purchased an extended warranty plan and will be looking into exactly what is covered. What steps should I do immediately re: crack stoppage and should the local dealer be approached? We are heading out this weekend so would like to do what I can and need to before we go. New to rv'ing so all advice appreciated. Thanks.
2016/15 Sunseeker 3050DS-CD