A few times now, my lights wouldn't go on - headlights, interior lights, nothing illuminates. Then I'll try it again later & they work. Since there is only one way to turn them on, it's not operator error Tried searching for this subject, found nothing. Any ideas? If it matters, it happened when it was cold (early a.m. frost) & another time with light drizzle & cool weather. I know everything will work perfectly if I bring it to the dealer.