If it's anything like the North America Cruze, the lights are LEDs. I'd guess that you have a bad connection. You can try inspecting the connectors in the dashboard. I've not heard of this being a common problem.
I'm having a bit of a problem parsing the sentence. Yes, the DIC and Radio are on all he time, but should react to the dimmer at night.The problem is this, my dash lights other than the DIC and Radioscreen which both stay bright 24 hours a day are not lit during the day no matter what I do. The dimmer control has no effect. The automatic feature works fine switching from day to night modes
I believe off during the day is normal. I've not had any problem reading the gauges. The only time I've had problems is when the sun hits the chrome rings and causes glare. I'm not aware of anything changing between 2013 (my car) and the 2016.The problem is that the dash lights are off during the day making the gauges impossible to read because they are recessed so deeply into the dash.