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How to Replace Third Brake Light 02-09 Chevy Trailblazer

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How to Replace Third Brake Light 02-09 Chevy Trailblazer

Created on: 2011-05-19

Watch this 1A Auto instructional video to find out how to replace the third brake light on your 02-09 Chevy Trailblazer.

  1. step 1 :Removing the 3rd Brake Light
    • Open the tailgate and unplug the lead.
    • Pull the tailgate down open the window and lift the tailgate partially.
    • Remove the clip on the harness.
    • Pull the harness out.
    • Remove the two Phillips screws on the brake light.
    • Pull the light down and out. Unclip it from the truck.
  2. step 2 :Replacing the 3rd Brake Light
    • Put the light into place.
    • Run the harness back through the tailgate.
    • Replace the two Phillips screws.
    • Re-clip the harness.
    • Connect the lead.

Tools needed for replacement

  • Pliers, Cutters & misc Wrenches

    Needle nose pliers

  • Screwdrivers & Related

    Flat Blade Screwdriver

    Phillips Head Screwdriver

Installation Video
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Hi. I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20 plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1A Auto.com. The right parts installed correctly. That's going to save you time and money. Thank you and enjoy the video.

In this video we're going to show you how to remove and replace the third brake light on this Chevy Trailblazer. The tools you will need are a flat blade screwdriver and a Phillips screwdriver and maybe a pair of pliers as well.

The third brake light is a sealed unit. It can fritz out on you. To replace it open up your tailgate and you can see the lead right here. You pull this little plug out and pull some wire out and there's your connector. What you want to do is pry up on the tab on one side. You can use a little screwdriver. Once you pry, then pull it out. Maybe what you want to do is pull up on here at the same time lift up your tailgate some and pull this wire through.

Right here it does go through a little clip. Get a pair of needle nose pliers and maybe a screwdriver to pull that clip off. Push in the round part of the harness right through there and just pull it right through. Now there's two screws in here. One over here. They are Phillips screws. Clip over here and there's your old light out. The new light from 1A Auto is the exact same. Take the protective film off and put it right up and in. You want to make sure it goes into this slot here first. Push it up and in. Put the wire through this retainer. Force it in. Put in your two screws. Now what you want to do is put this through. Bring the window down a little bit and stuff this rubber grommet in some. All right so we've got this stuffed most of the way there now. Bring it up and pull our lead through all the way. Take our clip and put it back in place. Connect our lead. Put it down and in. Push the rest of the wire in. Install the rubber grommet and we're all set.

We hope this helps you out. It was brought to you by www.1AAuto.com your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free 888-844-3393. We are the company that's here for you on the internet and in person.

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

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2002 - 2009  Chevrolet  Trailblazer
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