Thanks for the information guys. The adjustment does not work on my back up camera monitor. Once I put it into reverse the camera is on and the monitor just stays nice and bright. I could read a book at night with this brightness. I am going to work on a fix for this.
Are you talking about the wheel (switch) that adjusts the dash light brightness? Mine won't even turn the dash lights all the way off. New truck....maybe I need to have the service dept look at this.
I am noticing that when backing into a darker area at night, my side mirrors are hard to see with the backup display on. It is a little too bright and I would like to see my mirrors better. Is there a way to turn down the backup monitor screen at night? Or to even turn the monitor OFF, when I don't need it?