Question about 2003 Chevrolet TrailBlazer

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2003 trailblzer head light bulb replacement

How do i replace the head light bulb on thr chevrolet 2003 trailblazer?

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  • klienschatz Feb 09, 2009

    the back of the head light is covered by plastic.I was told to to turn some pins and it will pop out. also told to pop the plastic off the back and you will get to the light.

  • Anonymous Mar 17, 2014

    how to adjust 2003 chevrolet trailblazer side mirrors

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On a 2003 Chevy Trailblazer, you have to remove the grill to access the back of the head lights. It takes a good pull (don't be afraid to use a little force). Pop the hood and there 4 metal pieces that slide up and several plastic pieces that pop up. You will see the lips on the metal slides (about an inch in width) and you pull those up to loosen the grill. There are 2 of these slides (one on each far side, almost hidden) that are hard to get your hand into that you might need a screwdriver or something for leverage to slide them up. Then pop up the plastic pieces holding the headlamps in place and with a little force pull the grill off.
Then you can access the back side of the headlamps to replace the bulbs.

Posted on Feb 11, 2009

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Usually on a chevy you need to pop the hood. take a look at the back of the head light lens you should see a socket with 2 wires on it. you will need to turn the socket one way or another. it will twist and come out. just remember when replacing the bulb do not touch the glass on the new bulb. always hold it by the plastic base. the oil on our hands will burn the bulb immidiatley.

Posted on Jan 08, 2009

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Posted on Jan 02, 2017

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1 Answer

2003trailblazer head light bulb replace


Drivers side: Gotta stick your hand way in there in front of the battery, and take the rubber dust boot off, just slides right off. Twist the bulb out, and disconnect from connector.

Passenger side: easiest if you just remove the air cleaner box, 3 screws, one on the top, one on the right side, and one on the bottom left. Remove these screws, then pull box straight up. You'll then have complete easy access to the rubber dust boot and bulb.

Feb 10, 2016 | 2003 Chevrolet TrailBlazer

1 Answer

I replace the break light still not working


clean the connector where the bulb plugs in the rear light units on the trailblazers are known for problems most units are replaced as a whole the whole light rack has problems but sometimes you can get lucky by cleaning the connections and retrying the bulb

Jul 12, 2015 | 2003 Chevrolet TrailBlazer

1 Answer

Issues with 2003 Chevrolet TrailBlazer


low beam will go out automatically whem brigt beams click on

Sep 17, 2012 | 2003 Chevrolet TrailBlazer

1 Answer

How do you remove front head light cover in order to replace headlight?


the head light bulb is on the back side
there is two locking pins under hood holding the assembly in
rotate 1/4 turn and pull up pull assembly put and unplug
remove retainer ring and remove bulb
assemble in reverse test new bulb before mounting light assembly back in

Jul 15, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

Head lights


You dont actually replace the headlight , just the bulb inside the headlight.. look inside the engine compartment at the back of the bulb , you just unplug the wire and either turn the bulb 1/4 turn to remove , or there will be a little spring clip.

Apr 14, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Head light bulb replacement 2003 chevy trailblazer


Simple! (I have the same model as well) Pop off the front chevy grill - it's held on with spring clips. Then look at the headlight assembly - there are 2 slide clips on either side, near the top - they have a tab that is bent forward - lift them UP. It may take a little force as they are usually stiff. The headlight assembly can then be pulled off the car, and the bulbs replaced.

Apr 18, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Lowbeam light wont work


check the headlight relay

Mar 25, 2009 | 2003 Chevrolet TrailBlazer

3 Answers

Replace headlight for 2005 Chev Trailblazer


59Shadow.
Thank you for sharing the information on the light bulb. You just saved me money from having to take my 2003 Trailblazer in to have the low beam bulb replaced. I did exactly what you said.
1 Open hood and lock.
2. Take filter cover off (4 screws and they stay with the filter).
3. 3 inch cover pulls off.
4. Twist light bulb 1/8 turn.
5. Unclip the wiring harness to light bulb assembly.
6. Test by turning light switch on.
7. Align assembly with light housing and turn 1/8 until it snaps in.
8. Put 3 inch cover back on.
9. Place filter cover back on and hand tight the 4 screws.
10. Close hood.

Dec 12, 2008 | 2005 Chevrolet TrailBlazer

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