Posted 3/9/2016 07:52 (#5164996 - in reply to #5164780) Subject: RE: 2015 gmc
Lake Mills, WI
Mine were also terrible since new. I read somewhere on the internet that there was an update available thru GM to help. I went to my dealer and asked about re-proramming the headlights. They did and they are alot better on low beams and somewhat better on high beams. You have to ask for the update, they don't send out a service bulletin about it.
2015 gmc
