Headlight adjustment help
Thread Starter
Drifting
Joined: Apr 2007
Posts: 1,891
Likes: 109
From: Texas
St. Jude Donor '12
Headlight adjustment help
How do you adjust the headlights on a C5. I am not sure how to do this. I have search but no luck finding a solution. Thanks in advance for the help.
Instructor
Joined: Mar 2007
Posts: 153
Likes: 0
From: Waldorf MD
I hope this helps
Export, LH Rule of the Road)
ADJUSTMENT PROCEDURE
Headlamp Aiming: Export, LH Rule Of The Road - Adjustment Procedure
Prepare the aiming screen and the vehicle for headlamp aiming. Refer to Headlamp Aiming (Screen Method) .
Raise the hood.
Raise the headlamps.
Remove the headlamp adjustment screw plug from the headlamp bezel. Reach under the headlamp bezel and push out the plug from behind.
Headlamp Aiming: Export, LH Rule Of The Road - Adjustment Procedure
Turn ON the low beam lamps.
Inspect the horizontal aim.
Adjust the aim using the horizontal adjusting screw, to align the break point (3) of the high intensity zone to the headlamp vertical centerline (1), within the range of 38 mm (1.5 in) to the left (4) of the lamp vertical centerline (1), to 38 mm (1.5 in) to the right (5) of the lamp vertical centerline (1) on the aiming screen.
Inspect the vertical aim.
Adjust the aim using the vertical adjusting screw, to align the upper edge of the beam horizontal cut off line 114 mm (4.5 in) below (7) the headlamp horizontal centerline (2), within the range of 76 mm (3 in) below (8) the lamp horizontal centerline (2), to 191 mm (7.5 in) below (6) the lamp horizontal centerline (2) on the aiming screen.
Headlamp Aiming: Export, LH Rule Of The Road - Adjustment Procedure
Install the headlamp adjustment screw plug. Push to secure.
Turn OFF the headlamps.
Lower the hood.
Copyright © 2007 ALLDATA LLC
ADJUSTMENT PROCEDURE
Headlamp Aiming: Export, LH Rule Of The Road - Adjustment Procedure
Prepare the aiming screen and the vehicle for headlamp aiming. Refer to Headlamp Aiming (Screen Method) .
Raise the hood.
Raise the headlamps.
Remove the headlamp adjustment screw plug from the headlamp bezel. Reach under the headlamp bezel and push out the plug from behind.
Headlamp Aiming: Export, LH Rule Of The Road - Adjustment Procedure
Turn ON the low beam lamps.
Inspect the horizontal aim.
Adjust the aim using the horizontal adjusting screw, to align the break point (3) of the high intensity zone to the headlamp vertical centerline (1), within the range of 38 mm (1.5 in) to the left (4) of the lamp vertical centerline (1), to 38 mm (1.5 in) to the right (5) of the lamp vertical centerline (1) on the aiming screen.
Inspect the vertical aim.
Adjust the aim using the vertical adjusting screw, to align the upper edge of the beam horizontal cut off line 114 mm (4.5 in) below (7) the headlamp horizontal centerline (2), within the range of 76 mm (3 in) below (8) the lamp horizontal centerline (2), to 191 mm (7.5 in) below (6) the lamp horizontal centerline (2) on the aiming screen.
Headlamp Aiming: Export, LH Rule Of The Road - Adjustment Procedure
Install the headlamp adjustment screw plug. Push to secure.
Turn OFF the headlamps.
Lower the hood.
Copyright © 2007 ALLDATA LLC
Drifting
Joined: Jan 2007
Posts: 1,977
Likes: 9
From: Houston, TX www.djmotorsportaccessories.com Specializing in C5 & C6 Accessories. DJ Motorsport Accessories.
St. Jude Donor '08-'09
The adjustment stalk for up or down is behind the lens right sticking out behind the bulbs. You will need to remove the three screws and take off the bezel and you will see the long stalk with a T-15 torx center. Give the stalk connection a spray with WD-40 first to loosen it up. If you don't have a T-15 torx driver you can use 1/4" socket over the end of the stalk. 
