2017Z

Any Updates on this? I have a 2020 6.2 TB that does exactly this and like in the video posed by FishHuntRepeat. Dealer said they cannot hear it or get it to repeat. I think it is related to the Auto Start Stop. If I turn it off after start up, it will go away quick. Could this be something charging up? Not sure how that Auto S/S functions or if it has a belt or compressor ran to it. Cant see PIP5587 has changed from "Normal Noise"

Crazy that’s the work around. Truck was parked in my flat garage so not sure why it did it. Bought a code scanner and Looks like it’s all the same as what everyone is talking about which really equates to a software blunder on GM part. See what service says tomorrow.

Anyone posting here recent have any successful fixes? New 2020 Trailboss 6.2 and having all these same errors, codes, battery draining , auto setting parking brake for no reason, and CEL random. First set of codes was 2 days after I bought the truck. Apparently reflashed computed and recall update applied even though when I drove it off lot all recalls were cleared. 3 weeks later truck was dead and battery drained and took a whole day to charge up and the dash was flashing every code under the sun and said don’t drive truck. Chevy found no issues. Now getting ready to take a road trip and CEL light comes on after the truck sat all night and we packed up and started. Will go back again to dealer tomorrow. Ridiculous. Brand new truck and seems unreliable. Also forgot to add that fuse 82”TIM” blown for no reason and affected my running lights on my trailer.