In my car i have the blue switch, but it's up by the fasten belts light on the dash to the right of the steering column (your right)

in my hanyes manual, it's called the demister switch.

I was just curious as it stays on for a while, and shuts off (with the switch still on, light goes out) and comes back on after a while. and my rear window never really defogs that fast.

might have to get out any play around with my multimeter and see where that leads me