Did you buy this TT new?
If so, my apologies to you for the dealer not taking the time to show you and teach you what all the things on your unit are and what they do.
It baffles my mind that a dealer would let someone go off their lot who admits being naive about things, without explaining everything.
You did come to the right place for help though. When you have other questions, post as much information as possible (including pictures, model numbers and make, model and year of unit) and someone here will be glad to help out.)
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel
Ford F-Series SCREW 4x4
TST Tire Monitor - Sinemate 3500w Gen.
2016 Nights Camped = 42