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How to Replace Third Brake Light 94-05 Chevy Blazer S10

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  1. step : Remove the third brake light. (1:05)
    • Remove the two Phillips screws on either side of the brake light
    • Use a cloth and a putty knife to pry up the light.
    • Unplug the wiring harness.
    • Unclip the plastic panel on the inside ceiling of the vehicle to do this.
  2. step : Install the new third brake light. (3:10)
    • Thread the wiring harness up through the roof of the vehicle.
    • Clean up the area with some glass cleaner or household cleaner.
    • Remove the rubber grommet carefully with a pair of wire cutters.
    • Connect the brake light to the wiring harness and tuck the wires back down into the vehicle.
    • Have a helper depress the brake pedal to ensure the light is working properly.
    • Clip the plastic cover back up into place on the interior of the vehicle.
    • Remove the backing on the adhesive seal of the brake light.
    • Line the brake light up and press firmly into place.
    • Secure with the two Phillips screws.

Brought to you by, your source for quality replacement parts and the best service on the Internet. 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 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 replace the third brake light on this 2000 Chevy S-10 Blazer. It's similar for many different GM vehicles. Tools you will need for this vehicle are a Phillips screwdriver, a regular screwdriver or a putty knife and possibly some type of wire cutters or razor blade or something to cut a rubber grommet. We do apologize a little bit in advance as we're doing this in winter so you can hear the heat in the background in the garage. Obviously the third brake light is right up on top of your vehicle. You can see I'm standing right on the back bumper. There are two Phillips screws. Remove those screws. I'm going to take a sock here and put it down so I'm less likely to scratch my paint. I'm going to use a putty knife. I'm fast forwarding a little bit. Just use that putty knife to break the seal between the light and the body of the car.

You can see here's the harness. To unplug your harness I'm going to start from the outside and pull down on this trim panel. Then you can see this is pull down on this. This red right here is my connection for the third brake light. Here's the connection. See our red and black wire. I'm just going to take a screwdriver, pry that tab up and disconnect it. Now I'm going to take a piece of thin gauge wire and just wrap it right around here. You can use string or whatever for this part. You just want to put something on there to follow it up so as I pull my harness out it pulls the wire with it. Back up on top here, lightly pull through. There's my wire out. Now I'm going to use that sock and a little household cleaner like some Windex or whatever, a paper towel.

Here's our new light and the old light. The new light all the same; a little shinier. The new light is designed to fit a number of different applications so it actually comes with adapter harnesses so you basically want to choose the correct one which for this vehicle it would be this one. Then for some applications there is a rubber grommet installed. This vehicle does not require this so I'm going to use a pair of wire cutters and actually cut this grommet off carefully. I'm going to fast forward through this. There's a number of ways you can cut this off. These wire cutters are probably the safest, but obviously you could use a razor blade or even a serrated house knife. Obviously be very careful not to cut your fingers or the wires.

Now I'm just going to take these two, wrap my piece of wire around them just like before and put them down into the hole. I'm going to slowly, carefully pull them through. Now I can put on my harness. Plug it in. Then remove the guide wire. Put all that up inside. Before we install we want to remove the adhesive. Tear it to get around the wiring right there. Then what I like to do is put the screws through and make sure that the wire goes down in there and the screws hit there and the screw first and put it down in. Then tighten up your screws.

We hope this helps you out. It was brought to you by 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 with you on the internet and in person.

Tools needed for replacement:

    General Tools

  • Putty Knife
  • Razor Blade / Gasket Scraper

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

1995 - 1999  Chevrolet  Tahoe
1996 - 2001  Oldsmobile  Bravada
1992 - 1999  GMC  Yukon
2003 - 2009  Hummer  H2
1994 - 1994  Chevrolet  Blazer Full Size
2000 - 2000  Chevrolet  Tahoe
2000 - 2000  GMC  Yukon
1992 - 1999  Chevrolet  Suburban C1500
1992 - 1999  Chevrolet  Suburban K1500
1992 - 1999  Chevrolet  Suburban C2500
1992 - 1999  Chevrolet  Suburban K2500
2000 - 2004  Chevrolet  Suburban 1500
2000 - 2004  Chevrolet  Suburban 2500
2000 - 2004  GMC  Yukon XL 1500
2000 - 2004  GMC  Yukon XL 2500
1992 - 1999  GMC  Suburban C1500
1992 - 1999  GMC  Suburban K1500
1992 - 1999  GMC  Suburban C2500
1992 - 1999  GMC  Suburban K2500
1994 - 1994  Chevrolet  Blazer S10
1995 - 2005  Chevrolet  Blazer
1998 - 2003  Chevrolet  Blazer
1998 - 2001  GMC  Jimmy
1994 - 2001  GMC  Jimmy

92-06 GM SUV High Mount (3rd) Brake Light

Chevrolet GMC Olds Hummer Center High Mount Third Brake Light Eagle Eyes GM559-B0000

This part replaces:

  • Hollander 176-00367
  • Hollander 176-00337
  • Dorman 923-201
  • OE # 15755976
  • OE # 15030038
  • OE # 15030176
  • OE # 15145321
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