I've seen previous posts a while back about this issue, but have seen no solution posted. Here's the problem:
About 2 years ago, I went to hit the switch on my dash that turns all of the interior lights on. The interior lights flickered and then went off. I hit the switch a couple more times and every once an a while, the interior lights would flicker. Eventually, the lights were completely unresponsive. Since then, the switch will not turn the lights on at all. I have replaced the switch console and the issue persisted. The lights work if you use the point-of-use switch, but they don't come on when you open the door or use the dashboard switch.
I've checked the fuses and relays and all are fine. The dealer looked at (although I don't have any confidence they investigated thoroughly) and they don't have a clue.