Was going to replace my wifes front marker lights as they dont seem to be working while checking during the day. Before I dig in I looked around the internet and I am not convinced there is a bulb for the side marker light. Is there a seperate bulb for the marker light? Or is it just lit via the low beam. Of course the parts store sold me bulbs for the marker lights. This is a 2011 chevy traverse. I searched all over with no decisive answer except to look at new assemblies, and there does not seem to be a spot for a bulb. I'm guessing there is just a high and low beam. Im just talking about the top headlight assembly, not the bottom blinker. any help appreciated.