Thanx for all the info everybody. Handbasket, there are books specific to all the appliances, genrator, toilet etc..., none specifically for the biggest item namely the rv. Sorry you see my questions = complaints. Tatest, the manual is "Forest River Recreational Vehicle Owner's Manual -- Motorized" It is a general glom of Forest River vehicles, not pertaining to the 2003 E450 Sunseeker 3100SS LE in particular only generalizations. MACaroni, the one switfh clearly marked is the Arctic package switch...and that's it. Thanks for your input everybody. Incidentally, I actually had the vehicle weighed tonight. Adding front/back axle weight gave me 5900kg wth 3/4 tank of fuel and general stuff like bedding, dishes and the like.