Re: What does this button do?
Could possibly be a fuse reset, or possibly the horn. Any other horn buttons at the helm. Or, it could be, well, we better not go that far. . I heard of a button one time, it was called the anti-nag button. The ole lady starts naggin from the passenger seat, and this puts up a partition, you can still see her, but cannot hear anything she says.

Actually, I tend to do that when we are in the same room with no partition. .

Maybe that's why there's an indentation just my size on the couch.