Due to the RV being later than the 2010 cutoff for getting the good wiring schematics, online info is scarce to missing!
But there are some things we can do to work around that problem, if we get dedicated and bold enough as well as some luck.
Can you get to the back of the switch or are you able to pull it out of the mount? Possibly the whole mount for that group of switches can be pulled out together to get a look at the wiring and switch for some vital info? That's where the luck can come into play as it can be a trick!
I find no good info on what switch this actually might be but did find hints to check.
But part of the hint is from Amazon and in Spanish but with a picture!
When looking at the parts drawing for your RV, I found the pictures below here:
https://catalog3d.winnebagoind.com/menu/Parts.htm
Drilling down to the front end wiring and that switch here:
https://catalog3d.winnebagoind.com/2014/183746.htm
It shows the location and then we can turn it over and look at the mounting and pin connection on the back. Those seem to match this switch I found on Amazon with a picture which "seems" to match???
https://www.amazon.com/-/es/Carling-.../dp/B017TNZCDK
Click these pics to get a better view to compare and also to read the part number on the drawing of your switch as that is a portion I might trust!
Winnebago part number 174757-11 would seem to be correct but from there we are left to hunt and peck before trusting...
I have found these are often a Carling switch but that only narrows it to a few hundred!
But if you can mange to get the plastic tabs at each end of the switch pressed in to release, the switch may pop out somewhat easy and that can let you look at more info. as there are labels stamped along each wire to ID the "from" and "to" of each wire and that is info you will need to check for the correct battery, ground, etc as you toggle the switch each direction.
To decode the wire ID, check this listing:
https://www.winnebago.com/Files/File...ical_guide.pdf
I did a search by hitting "ctrl and F" at the same time and typed in "shade" as the search term but that gives me 56 items for a large variety of different windows for you to sort for which window??
There is a chance that you can find the code on the wire and sort that code down to find what each wire does???
But you may also find a Carling model number on the switch which lets you go online to find the specs for that specific switch and that info can let you test the switch. Two ways to go but neither especially easy!!
That's pretty low grade info but if dedicated,you may be able to chase it down to worthwhile finding if the switch needs replaced and where to get the switch?? Several online places offer the switches, once you know which of dozens of types.
Best of luck on the chase!