Welcome to IRV2! We're sure glad you joined the gang!
I'm not familiar with your rig but most that have cargo bay doors that open upward have interlock switches that prevent the slideouts from moving if the door is open or the switch is bad.
Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD