Went to my dealer earlier in the week for this. Driver side blue on drl only, headlights on- it returns to normal.
First of all, the service advisor douche wouldn't even acknowledge that he saw a difference in the light color.
After several demonstrations of changing from headlights on to auto... he said he'd have the tech look at it. STILL wouldn't acknowledge the color change.
Go to pick up truck today... he tries convincing me that it's the angle that I'm looking at it as it's "a downward angle". He also says it's on both lights. It's only the angle ! LMFAO.
On the way out I got the service advisors name from a sales guy walking by. I asked him.. he do you see any difference in my drls ? He said, hmm... the drivers side looks a little different on the top. I thanked him and left.
Time to find a new dealer after a call to the service manager to express my extreme displeasure.