are all 5 headlights suppose to be on when turned on bright?
that was suppose to be 4 not 5
That depends on how it has been wired. There is a kit out there that turns on all 4 when on high beams, so that is most likely what has been done. I put it on my old Tahoe and my newer Yukon. There is nothing wrong with it.
Search GMC Sierra 1500 Questions
GMC Sierra 1500 Experts
Related Models For Sale
Used Cars For Sale