I downloaded the 2020 View OM from the Winnebagoind.com website last night, and the knob is in the pic exactly where creativeparts shows it in his posted pic from the same manual. Sometimes the page numbers in the hardcopy don't match the pdf version. Read through the entire Electrical Section of the version you have.
Theories/problems,
1) You have the wrong owners manuals. Or, are looking in the wrong manual.
Solutions: Ask Winnebago/dealer to confirm your edition(s). Alternately, dowload 2020 View manual from winnebagoind.com website, to get the most current version.
2) You have something other than a 2020 View with an aftermarket add on mystery knob.
Solutions: Unlikely, but verify you actually bought and own a 2020 View.
3) You apparently contacted WGO support but got the wrong person(s) on the wrong day(s). Did you call them? Or send Email?
Solution: Their email technical/customer support can be reached at
[email protected]
Include your chassis VIN and WGO serial numbers in your emails. They will literally pull up your vehicle's specific schematics and diagrams to see what you've got, before replying. I have had numerous contacts/responses with them using email and all my questions have been answered to my satisfaction.
4) Does the knob in the picture posted by creativeparts look like the one you are asking about?
Solutions: Solved. It's an Inverter/Charger disconnect switch. From the downloaded OM page 6-4...
"Further Information
See the inverter/charger manufacturer’s user
guide provided in your InfoCase for complete
instructions and charging setup directions."
The InfoCase is the big "black bag".
Also, I believe the 2020 View "standard issue" batteres are AGMs. Not wet cells. You'll have to pull the entry step and have a look, but the early info from Winnebago suggested they came with AGM standard, and LiFePO4 optional, if I recall correctly, when I was looking into getting a 2020 View/Navion myself.
This is about teaching a man to fish. I am trying to help you, but just taking a different approach than creativeparts.
You'll get the hang of this, but there's a lot of reading involved.