[wildcatsua]

The guy we bought from generously offered to repair. He replaced the cluster yesterday with a used one he got somewhere and the problem went away.

Additional learnings: the cluster is very easy to service - only 1 screw on the trim panel and 2 screws on the cluster and it comes right out, the car mileage is stored in the cluster. The guy who changed it was very surprised about this. He said he works on a lot of GM's and their mileage is in the brain and does not carry with the cluster.

So now the new cluster had about 7,000 miles less than the original, does anyone know an easy and cheap way to add miles?

Thanks!