Dead infotainment screen (and it's COLD)

After work, I got in my Volt and the infotainment screen is completely blank (unpowered). The infotainment controls appear to work normally... they are lit up and an audible "click" is heard when they are pressed, I can change driving modes, seat heater controls work. But there is no radio, bluetooth doesn't connect to my phone, etc. Biggest issue is that I cannot control climate, and it's getting cold. I had it on Eco, which isn't cutting it for the polar vortex. Fan speed does change, I assume temp setting does too, but I can't change vents or to Comfort. Cycled car on and off a few times with no change.

Any ideas? Sounds like more than a dead display if bluetooth/radio aren't working. But a dead head unit wouldn't always blank the display (or maybe it would)? It's too cold to randomly check fuses right now, unless I know a specific one. I'll start checking my manuals for that, but appreciate any input.

Edit: fuse F4 (display) looked intact (not blown).