Repp

I have a 2020 Denali 1500 and have experienced the same issue with my auto dim system. It seems to work for awhile then the auto dim logo in the dash goes off even though it's dark out w/no or very little ambient light. Pushing the auto dim switch on the end of the turn signle stalk doesn't do anything. So, the auto dim system is only working intermittently even though it is dark and I am above the speed at which the system is supposed to activate. No fog or anything else on the windshield that might cause the system to deactivate. Hopefully a simple software upgrade will solve my issue?