There's one other area you'll need to watch when the temperature gets below 25 degrees. Specifically, moisture that coats various components during the day will often freeze at night. For example, when we pulled in our slides one cold morning, we heard a snapping sound. As it turned out, part of our slide-topper broke off. Apparently, the part froze in place. When we pulled in the slide, it simply snapped. If possible, wait until the temperature warms up a little before heading out. Most motorhomes can cope with cold weather but you do have to be careful to avoid water-related damages. Good luck and I'm sure things will be fine.
2004 Winnebago Brave 34D with the usual add-ons