Screeno,Reporting back that this "select screen off" setting does not exist on the 2012.
The nearest I come to it is, press Config button, then Display Settings, then Dimming Mode, then three choices... Day, Night and Auto.
Sad to report that there is no discernible change to the bowtie night light no matter what mode I select.
The closest I have come to getting rid of the thing is the instrument panel dimmer setting, but that dims everything on the dash along with the bowtie nightlight, which is not feasible.
The cardboard cutout is looking more and more like the only joy I'm going to get.
I am sorry that you are not able to get your display to dim to a level that you would like it to. I do not have information on available updates for your audio system but I would recommend that you contact your dealer and speak to them about this. Please keep me posted on this. If you ever have any questions, comments or concerns please feel free to contact me anytime.
Thank you,
Stacy Chevrolet Customer Service
