Rick; I sent your question to my sister who work in the Instrument group at Chevrolet. This is her reply to me just now; >>Sounds like a stepper motor issue in the cluster but I will ask the Release engineer who owns that part and get back with you.<<
As soon as I hear, I will post again. Are you up to repairing/replacing the part yourself if I can get one?
Stacey Frank
Weigh-It, Portable RV Scales
586-246-3048
weighit@gmail.com
http://weighit.tripod.com