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How to Replace Headlights 1999-2004 GMC Sierra 2500

Created on: 2010-02-01

If the headlight or headlamp is cracked or broken, follow along the steps in this short video to replace it yourself

  1. step 1 :Handling the Bulbs
    • Note: DO NOT TOUCH the bulbs- the oil from your fingers will burn into the light and foul your bulb.
    • Clean with rubbing alcohol and a soft cloth if the bulbs do get touched.
  2. step 2 :Remove the old headlight assembly
    • Pop the hood and secure it.
    • Remove the two anchor pins securing the head light assembly by twisting and pulling them up.
    • Remove the head light assembly.
    • Unplug the bulbs and harness.
  3. step 3 :Install the new headlight assembly
    • Plug in your bulbs, replacing them with new ones if necessary.
    • Reconnect the harness by clipping it in.
    • Line up the head light assembly and clip it into place.
    • Put the two pins back into place to secure the head light assembly.
    • Close the hood and enjoy your new 1A Auto headlights.

While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

This video is brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, my name's Mike Green. I want to help you save time and money repairing your vehicle. I have 20-plus years experience restoring and repairing cars and trucks. My company, 1A Auto, sells high quality replacement parts over the Internet. In this video, I'll be showing you how to install these parts. By the end of this video, you'll know how to install them and where to get them. That's going to save you time and money. Thank you and enjoy the video.

This video, we'll be replacing the headlight on a 2004 GMC Sierra, basically the same as a '99 to '06 Sierra. It is a pretty easy process. It requires no tools. So, with that, we'll get you to it.

There are two pins that hold the headlight in right there and there, and you'll twist those out and pull them up. Then, the headlight basically comes right out. Then, once it's out, you can reach in behind and unplug the lights. They're basically just little teeth that you can kind of pull with your thumb, and they unplug.

Okay, now we're going to replace the headlight. At this time, you can obviously service the bulbs if that's all you're looking to do. So, they just twist in ... or twist out and twist back in. Then, our headlights come with that whole bracket and everything, so if you're replacing your headlights at this point, you're plugging them in and then everything should install just the same way. Plug them in, put the headlight back in there. Take your pins, put them down through. Obviously you have to make sure that the headlight is all the way back in and lock them into place, and your head light's all set.

Now, we'll do a quick test. Just make sure everything's working. The headlight, the high beam, and the signal are not working. Actually that side marker's not working, so we'll really quickly replace that, and then, you're all set. Hope this helps you out. Headlights are pretty easy to service on these GMC trucks.

This video was brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Feel free to call us toll free 888-844-3393. We're the company for you on the Internet, and there for you in person too. Thank you very much.

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2000 - 2006  GMC  Yukon
2005 - 2006  GMC  Sierra 1500
2002 - 2002  GMC  Sierra 1500
2000 - 2006  GMC  Yukon XL 1500
2002 - 2003  GMC  Sierra 1500 HD
2001 - 2001  GMC  Sierra 1500 HD
2006 - 2006  GMC  Sierra 1500
2006 - 2006  GMC  Yukon
2000 - 2000  GMC  Yukon XL 1500
2002 - 2005  GMC  Sierra 1500
2001 - 2006  GMC  Sierra 1500
2001 - 2003  GMC  Sierra 1500
2004 - 2004  GMC  Sierra 2500 HD
2005 - 2006  GMC  Sierra 3500
2005 - 2006  GMC  Sierra 2500 HD
2004 - 2004  GMC  Sierra 3500
2004 - 2004  GMC  Sierra 2500
2004 - 2004  GMC  Sierra 1500
2003 - 2003  GMC  Sierra 2500 HD
2003 - 2003  GMC  Sierra 1500 HD
2003 - 2003  GMC  Sierra 3500
2003 - 2003  GMC  Sierra 2500
2003 - 2003  GMC  Sierra 1500
2001 - 2003  GMC  Sierra 2500 HD
1999 - 2003  GMC  Sierra 2500
2002 - 2003  GMC  Sierra 1500
2001 - 2003  GMC  Sierra 3500
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1999 - 2004  Chevrolet  Silverado 2500
1999 - 2006  Chevrolet  Silverado 1500
2005 - 2006  Chevrolet  Silverado 1500 HD
2007 - 2007  Chevrolet  Silverado 2500 HD Classic
2001 - 2006  Chevrolet  Silverado 3500
2003 - 2007  Saturn  Ion
2001 - 2003  Chevrolet  Silverado 1500 HD
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2001 - 2002  GMC  Sierra 2500 HD
2001 - 2002  GMC  Sierra 3500
2001 - 2002  GMC  Sierra 1500
2001 - 2002  GMC  Sierra 1500 HD
1999 - 2002  GMC  Sierra 2500

Kit image

GMC Passenger Side 3 Piece Lighting Kit TRQ LKA55903

Part Details:

  • 3 Piece
  • (1) Passenger Side Parking Light
  • (1) Passenger Side Headlight Assembly
  • (1) Passenger Side Headlight Assembly Bracket
$109.95
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While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

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