My Daytime Running Lights don't turn off when I turned my headlights on, they just dim down. So, they are always on. I can turn them off with the switch in the cabin, but I like having them on. I think I found the relay that sends less voltage to the Daytime Running Lights when the headlights turn on. I'm going to do a little more research on that and replace that relay. When I do, I'll let everyone know how it turns out and if it fixes the issue of the Daytime Running Lights dimming when the headlights are turned on.