About a month ago, when trying to turn my lights on manually my 2003 mc ss said service car soon. Tonight I lost interior instrument panel lights but after further observation, I noticed they were just really really dim. I checked the dimmer switch and it was turned up as far as it could go. My mechanic
said it sounds like a bad dimmer switch. We checked all the fuses and they were fine along with the dimmer itself which was a small turn away from turning on the dome light. Just checking to see if this is plausible or not???