For some reason we have yet to figure out, Jayco is wiring the switches this way - always light on? If you are good with DC power it is easy to figure out and change. If not, just ask the dealer to change it when you go back in.
The second part of the question is pushing the switch forward, towards the windshield, would be the "on" position for heating the mirrors. Rocking it back is the off position.
Just between you and me , , , if I need to de-ice the mirrors, I ain't goin camping!!!
2015 Jayco Precept 35UN
Towing JEEP TJ with Roadmaster plates and bar w/Blue Ox Patriot brake
an Aluma low bed trailer with HD Road King and/or Polaris RZR onboard