C5 Headlight adjustments?
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 14
From: Kinston North Carolina
From the service manual----
Horizontal and vertical aiming of each of the composite headlamps is done by turning adjusting screws which move the headlamp capsule in relation to the headlamp frame. The horizontal adjustment screw (1) is located on the inboard side of each of the headlamp assemblies, covered by a plug (2) on the headlamp bezel. The vertical adjustment screw (3) is located on the inboard side of each of the headlamp assemblies, below the lower edge of the headlamp bezel.
Horizontal and vertical aiming of each of the composite headlamps is done by turning adjusting screws which move the headlamp capsule in relation to the headlamp frame. The horizontal adjustment screw (1) is located on the inboard side of each of the headlamp assemblies, covered by a plug (2) on the headlamp bezel. The vertical adjustment screw (3) is located on the inboard side of each of the headlamp assemblies, below the lower edge of the headlamp bezel.
Last edited by byronhunter; Feb 22, 2009 at 08:36 PM.
Team Owner
Joined: May 1999
Posts: 22,830
Likes: 13
From: Columbus Ohio
CI 3-4, 8-9-10 Veteran
St. Jude Donor '06-'08-'10
Be very careful trying to adjust the headlights.
The adjustment rods have a tendency to "junk" up on the gears inside the housing and snap when forced. The rod itself is not a replaceable item and GM hits you up the the entire assembly.
Try very gently to rotate them in each directions to work them loose. If they are bound up they can usually be freed by removing the headlight surround and soaking the adjustment housing several times over a day or so with PB Blaster. That worked on mine.
The adjustment rods have a tendency to "junk" up on the gears inside the housing and snap when forced. The rod itself is not a replaceable item and GM hits you up the the entire assembly.
Try very gently to rotate them in each directions to work them loose. If they are bound up they can usually be freed by removing the headlight surround and soaking the adjustment housing several times over a day or so with PB Blaster. That worked on mine.
Last edited by Blue 92; Feb 22, 2009 at 09:22 PM.
