headlight adjustment - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > OEM Issues

OEM Issues Original Equipment Repairs and/or Problems

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  #1  
Old 09-26-2009, 06:11 PM
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06Blazer88 06Blazer88 is offline
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headlight adjustment

So my driver side head light is lower than my passanger side and i was woundering how do you adjust the headlights? Any help would be nice.
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  #2  
Old 09-26-2009, 06:33 PM
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There is a white ...screw/knob/whatever you call it on top of the headlight assembly. You turn it to raise or lower the beam. Best to do this against a garage or a wall of some sort so you get an even line. You can use pliers to twist it, just be careful not to break it off.
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  #3  
Old 09-26-2009, 06:41 PM
jaylind jaylind is offline
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Quote:
Originally Posted by wardak33 View Post
There is a white ...screw/knob/whatever you call it on top of the headlight assembly. You turn it to raise or lower the beam. Best to do this against a garage or a wall of some sort so you get an even line. You can use pliers to twist it, just be careful not to break it off.


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  #4  
Old 09-26-2009, 07:52 PM
rcam81 rcam81 is offline
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You can use a 6 pt 1/4 inch socket to adjust them.
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  #5  
Old 09-27-2009, 03:35 AM
WOOLUF1952 WOOLUF1952 is offline
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Also, don't force it. If it doesn't turn fairly easy, spray it with some PB Blaster or ?, and let it free-up the threads.
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  #6  
Old 09-27-2009, 12:47 PM
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tblazed's Headlight Aiming Post

Here's a link to a great post by tblazed that shows a graphic representation of how to adjust your headlights.

http://forums.trailvoy.com/showpost....18&postcount=5

I printed it out on May 9, 2009 because I needed to adjust my headlights after the McMeister Lift was installed. Good thing I kept it because I did a search, but it didn't show up in the list. So I guess I can't give you a raspberry about using the search feature. Go figure. (Aw, what the heck - ).
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  #7  
Old 09-27-2009, 12:54 PM
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If you don't want to break or strip the plastic, you can do it the right way and get an 8mm Torx socket.
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  #8  
Old 01-18-2010, 08:37 PM
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This is the MOST helpful website I have ever been a part of. Awesome help guys.
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  #9  
Old 01-25-2010, 11:18 PM
kjack kjack is offline
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Exclamation Beam Problem

Adjusting the headlamp is not my problem, it seems to be the beam on the drivers side has a different shape than on the passenger side. I was wondering if there is a different type replacement bulb? I adjusted the beams as even as I could. The high beams were exact but the low beams just don't look the same. The drivers side shines in peoples rear view mirrors and I know it is annoying them. I readjusted so it is not shining in peoples mirrors but the high beams are way off. The drivers high beam is almost useless now. Any suggestions???
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  #10  
Old 01-26-2010, 01:20 AM
WOOLUF1952 WOOLUF1952 is offline
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The reflectors in the headlight assemblies are shaped differently on the left and right sides. Make sure the bulbs are in correctly and aim the lows. The highs should be correct.
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