Hello, when cold and the truck sits overnight my park lights will not work. Usually after some time they will come back on. Any thoughts on what could be causing this? Only seems to happen when its below -10degC or so. Truck is a 2004 GMC duramax 2500hd. Had a remote start, and in the process of trying to figure this out i've disconnect it from the park light circuit. I've also replaced the main relay thinking that might have been the cause. both the front and rear park lights go out, and will not turn on even with the switch. Thanks.