forest_dweller

Thanks for clarifying that it is in fact the F47 fuse. I had this happen yet again today... a message came on my dash screen that the exhaust filter needed to be cleaned. I selected start, and of course it caused some of those items like the digital speedometer to disappear again. Popped the F47 fuse out and back in, now good to go... bizarre glitch that GM needs to figure out.

Had to reschedule for today. So I brought my 2020 Duramax in and finally got this resolved. At first they didn’t believe me there was any issue with the DIC, after I repeatedly stated that those few things were missing (digital speedometer, trip meters, miles of fuel until empty, etc). I showed their mechanic that those things were missing. He hooked up his diagnostic computer to my truck and scanned it. Then he played around with the menu selector pin for a bit, still confused. So the next thing to check were fuses. He popped the fuse box cover over on the passenger side below the glove box. I don’t know for sure which they were, but he popped a couple of fuses out, put them back in and boom. That’s what fixed it. I now have everything back on my dashboard DIC screen. He was just as surprised as me that’s all it took. So for anyone else having the same issue, pop the fuses out for the dashboard (not sure what they were labeled) and put them back in. Apparently that’s the fix...

I have an appointment with the dealer on the 29th to hopefully get this resolved on my Duramax. I’ll keep everyone posted on what happens.

I agree. Only about 900 miles on mine when this happened... disappointing to say the least.

If anything I guess it’s nice to know I wasn’t losing my mind and this is an issue for others as well! I really did enjoy having the digital speed while it lasted.

Same exact problem here as well. 2020 3500 Duramax WT. Day one the digital speedometer and trip meters were on there, before vanishing altogether the next. Makes no sense.