Since I got the van (PM 2500 gasser, not that it matters), the bulb out indicator comes on whenever I turn on the headlights. The dash displays "Running light out". Here's the thing, I don't have daytime running lights on my vehicle (that I know of). I've replaced both headlights several times since I got the van and the message and indicator light still appear. Am I correct in reading running light as indicating the DRLs? There's no other light out that I can find. Anyone have any ideas what's going on?