My 2019 Silverado has had the same issue, it usually pops up during cool damp weather and clears up after i have driven the truck awhile. I mentioned it to the dealer where i have had all my service / oil changes done and I was told that GM is aware of it and there would be an update sent to me truck. I haven't noticed if any updates were done but now that fall weather is here, I started seeing that same issue pop up again.