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Dead infotainment screen (and it's COLD)

5094 Views 18 Replies 10 Participants Last post by  QuandAns42
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).
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To anyone that may be experiencing this same issue....

I one morning had the exact symptoms described in the original post. Everything was fine when I parked one night, and in the morning the infotainment screen didn't come on, no radio activity, no bluetooth, no backup camera. My initial thought was the screen, but that didn't explain the lack of other functions. First dealership tried the usual fuses and such (exactly as I had told them I had already done), charged me for half an hour of labor, and said they would need at least another 2 hours to trace wiring and whatnot to try to diagnose it. I didn't like that idea, seemed unlikely to be wiring in my mind, and I picked me car back up.

I tried opening up the dash, disconnecting and reconnecting all the cables, and that got me no where. Finally found this thread that said it was the actual radio unit back there. Since that seemed likely, I found one of only 2 on eBay that matched my exact part number, installed it, and paid the dealership an hour to update/program it, and voila! Everything works again.

TLDR, infotainment screen not on, radio not on, no (used in my case) radio (with exact same part number as I pulled out of my car, there are many options) fixed my issue after programming at dealership.
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