headlights

[drlhrd]

2019 silverado ltz z71 6.2 driving down highway at night headlight on left hand side i can see lights flickering.have taken truck in to dealership but havent been able to solve the problem ,what could it be

[silveradosid]

look for something that loose, may look like flicking but could be light is vibrating 

Edited February 8, 2021 by silveradosid

[Jsdirt]

Yeah, dead ringer for a loose connection ... although this is the 21st Century, so it could be a failing module, or a wire broken inside the insulation as well.

 

Stay away from the dealership unless you're still under warranty. If so, find another dealer. If not, find a local garage that's competent in electrical troubleshooting. This one should be super easy for them.

Edited February 8, 2021 by Jsdirt

[Doug_Scott]

You first need to check what type of light system you have. If they are LED you can rule out bulbs by tapping on the bulb.  The other types of lighting systems will have filaments which can flicker easily.  If your truck is under warranty stop trying to fix it yourself, let the dealer waste the cash.  

Assuming you live in the northern hemisphere it is still dark enough at 5pm to show dealer how to reproduce it.  Depending on opening time they may also have some time in morning.  You will have to get this reported before your sunlight time gets to the point you don't have time to show the dealer.  This likely didn't start last week.