2018 Silverado gauge cluster issue

[Dacotahsky]

I have a 2018 1500 Silverado LTZ Z71 and my analog speedo got stuck.  It reset when I restarted but it has been doing it a couple of times now.  On reset there is a grinding noise for the needle to find it's 'spot'.  Dealership couldn't find any codes.  Oil life monitor also seemed strange as it didn't move from 55% for over 1,600 miles and then dropped to 24% in the next 2,100 miles.  The only reason I noticed all that was because we went in a 3,700 mile road trip lasting about a week.  I had a 2014 before this and never had that issue. Digital seems fine just not the analog.  Anyone aware of any TSBs or known issues?  Because it's not readily reproducible and they couldn't find any TSBs they say they can't just replace.  

[1SLOW1500]

Re flash the bcm and test replace cluster next.