My last RV, a 2005 holiday rambler Alumascape had a large binder with tabs that told you everything you needed to know. Wiring schematics for 120 and 12 V systems, how to winterize etc. Literally everything in the trailer was demonstrated with drawings etc.
When I bout my new RV a 2015 DRV Tradition there was nothing like that . The warranty cards were scattered all over the rig. I had to gathere them up one by one. They could not be troubled to put them in one drawer.
Yes times have changed. Good luck and happy camping.