First welcome to the group Mike. Extra knowledge is always handy.
First I'd check the light socket with a meter. Is this at the entry steps? Some of those are activated by opening the entry door. Or it may be activated by other outdoor lights? As with any coach that is new, it takes a while to figure out everything. Good Luck!!!
MADP, Jeep, Blue Ox, SMI AFO, Solar: 900w/672a, Amish cooling unit, Lifetime: SKP & Days End