Drain and flush the fresh water system
Empty and sanitize the fresh water tank
Drain the water heater
Bypass the water heater
Drain all low-point drains
Blow out water lines with compressed air or pump RV antifreeze through the system
Pour RV antifreeze into all drains and traps
Protect the toilet, shower, and outside shower with RV antifreeze
Empty and clean the gray and black tanks
Add tank treatment if desired
Remove and store propane tanks if required
Turn off all propane appliances
Disconnect the battery
Remove the battery and store it in a charged condition
Clean and inspect seals, vents, and roof areas
Close and secure all windows, doors, and roof vents
Cover tires or move the camper off the ground if possible
Inflate tires to the recommended pressure
Lubricate stabilizers, jacks, hinges, and locks
Remove food, toiletries, and perishables
Clean the interior thoroughly
Leave cabinets, fridge, and freezer open
Use moisture absorbers or dehumidifiers
Cover the camper or use a breathable RV cover
Check for pests and block entry points
Store the camper in a dry, protected location
Inspect the camper periodically during winter