The left knob is ??instrument cluster lights dimmer............the right button is ??rear axle lock..........what year of Taco is it???? Your owner's manual if you have it should explain them.
I hit it and I think it does nothing but why is it thereView attachment 23301
It looks aftermarket for sure. I would even say an on off switch maybe where there are two buttons. But I don’t know why someone would use that instead of a toggle switch.
Look for aftermarket fogs. It should be easy to trace even if they’re off the truck now.
Perhaps...I hit it and I think it does nothing but why is it thereView attachment 23301