Hi. I am a new owner and have begun debugging my D. Usually, when I hit a bump, the interior lights come on and sometimes go off but not always. It's kinda comical but it's also annoying. I was thinking it could be the switches that hit the striker panel on the doors but I'm not sure. Plus, I gotta REALLY slam those doors to close them! I've noticed, (and maybe it's just me), that the later model doors seem to close a lot easier from all of the different test drives I've done. Can someone confirm this? Johnny 5518