Headlights

[Roland]

I have no headlights.high beam or low beam.fuse is good relay is good.2015 sierra.

[CKrado]

3 minutes ago, Roland said:

I have no headlights.high beam or low beam.fuse is good relay is good.

What model and year truck

[Roland]

2 minutes ago, CKrado said:

What model and year truck

2015 sierra

[CKrado]

1 minute ago, Roland said:

2015 sierra

Could just be bad timing by both bulbs but they may have gone out at the same time. Try replacing them to see if that fixes the issue. I think those trucks use halogen bulbs so it wouldnt be anything like a ballast or anything.