Overall, this is a very good guide, but I do have a few suggestions. Here is what I found in a quick read through:
- When talking about fresh water and the water pump, you might want to suggest they turn off the city water if they plan to leave the MH for any length of time. They wouldn't want to return to a flooded unit.
- If you keep your manuals in your MH, you may want to refer to them in case your parents need more information.
- Tell them to put the awning back in if the winds are gusting above a certain level.
- You tell them the toilet is water efficient, but they might need to know to fill the bowl before use, and then to flush for xx seconds to allow extra water into the tank (if that is your practice.)
- You gave then height and width of your unit, but not the length. They may need to know the actual length from bumper to bumper; otherwise, they could end up with too short a camp site.
- Give a brief overview of each key on the ring you give them ... engine, house, storage units, etc.
I'm making an assumption that you will be giving them a quick walk-through. Do another one yourself to see if you might have missed anything, like maybe a warning to use care when opening the fridge, cabinets, and drawers because things shift in movement. You did a really good job at the end telling them which storage bays for water and sewage, but you just said storage for things like levels.
- Water heater. You might want to specify the capacity and approximate time it takes to empty the tank (Short shower to you may not mean the same thing to your mom.)
-- Power. Do you have a surge protector, or a circuit checker? If so, mention them and stress the need to use them.
Also, not to be too picky (OK, I am picky, but I used to edit for a living) ...Run your document through a spell checker. You have several instances of "drivers", but omitted the apostrophe to make it possessive. You wrote Water Hater (Heater), in at least two instances, you wrote batter instead of battery. I think that in step 4 of stopping for the night, you may have meant "hose" and not "house"
Happiness is just a ride away!