Does anyone know what is button below the cigarette lighter does?
Nope. Not OE. Likely some previous owner added it.
Pop the dash top and see what it is wired to.
That is almost exactly where my backup camera brightness control is, but it is a rotary/twist type.
Call button for your stewardess/maidservant? >:D
Norm is trying hard to get in TIME OUT. Hope his better half doesn't see this!