2023 Blazer RS --Tach, Temp, Fuel background lighting intermittently "off" sometimes "on" while driving. day or night . Headlights switched from auto to on - no help. Instrument lighting dimmer- no help Center portion of background lighting (MPH) working normal, problem is just the outboard two sections (left and right) . So far have not been able to duplicate at dealer - Lights are off/inop when I arrive there --on/working once the service adviisor comes out and looks at the dash. Frustrating. Anyone out there with the same issue?. Thanks