Problem with C8 style headlights
Thread Starter
Heel & Toe
Joined: Mar 2025
Posts: 24
Likes: 1
Problem with C8 style headlights
Anyone know why my C8 style headlights aren’t doing the normal start up sequence, it’s like cut short. A body shop installed them so I no longer have the box if it’s something that wasn’t installed correctly so I’m hoping someone can help me figure this out if it’s fixable or whatever is wrong with it, Thanks!
Burning Brakes
Joined: Oct 2018
Posts: 928
Likes: 454
From: New Brunswick, Canada
Anyone know why my C8 style headlights aren’t doing the normal start up sequence, it’s like cut short. A body shop installed them so I no longer have the box if it’s something that wasn’t installed correctly so I’m hoping someone can help me figure this out if it’s fixable or whatever is wrong with it, Thanks!
Burning Brakes
Joined: Apr 2023
Posts: 1,087
Likes: 392
From: Florida
2025 C6 of the Year Finalist - Unmodified
Usually the sequence get’s messed up if they are plugged in backwards but I’m pretty sure it only clips in one way unless there is no tab on the new harness…
Burning Brakes
Joined: May 2008
Posts: 1,065
Likes: 163
From: Colorado Springs Colorado
2024 C6 of the Year Finalist - Unmodified
Do you have any old upgraded factory parts still plugged in? I thought on my old car there were a couple black boxes for upgraded bulbs that would need to be taken out
