Never noticed my Day time running lights until I was lurking and noticed this thread .
My 2010 has melted from the rear of the headlight housing , not the front as shown in the pics .
Too add to the frustration , my wiring harness that holds both bulbs in place is also melted . I am glad i was able to catch this in time . The lights come on with the command start and with the truck running in my garage , I wouldnt want a fire to start . I think its just a matter of time before one of these catches fire . They must get very very hot . I did order aftermarket LED,s for the DTRL but will not be installing until I talk with the dealer .hopefully they will replace the complete headlight assembly