Assemblies may include halogen or incandescent test bulbs that should be replaced before installation.
Features and Benefits
Direct Fit - No vehicle or wiring modification necessary
DOT, SAE, and FMVSS Compliant - Meets on-road use regulations
Matching set for a restored look
Item Condition:New
Attention California Customers:
WARNING: This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
The bulbs are for testing and not covered under our warranty. Our warranty applies to the light assembly only.
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How to Replace Tail Lights 2003-06 Chevy Avalanche
How to Replace Taillights 2002-06 Chevy Avalanche
Created on:
Tools used
Phillips Head Screwdriver
Paper Towels
Pick
1. Removing the Tail Lights
Lower the tail gate
Loosen the two Phillips screws
2. Servicing the Bulbs
Press the tab on the socket
Twist the bulb socket counterclockwise out of the light
Pull the bulb off of the socket
Push on the new bulb
Twist the bulb clockwise into the light
3. Installing the Tail Lights
Lower the harness beneath the bed that connects to the tail light
Remove the red safety tab
Disconnect the wiring harness
Remove the wiring harness and old sockets
Lower the new harness into place
Connect the tail light
Tighten the Phillips screws to the tail light
Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. We've created thousands of videos to help you install our parts with confidence. That saves you time and money, so visit us at 1AAuto.com, your trusted source for quality auto parts.
Pull down your tailgate. Then there's two Phillips screws that you need to remove: one down here and one up here. Once those are off, it should just pull back. If you're just looking to change your bulbs, each one has a little tab on it that keeps it from twisting. Push the tab, twist counterclockwise, come out, and then you'd pull the bulb straight out. On the bulb is a number. This one's 3157K, that's what you use to figure out the new bulb.
If you're looking to change your whole tail light because you want to replace the old ones, or it's been broken, just remove all the sockets.
The original taillight from the vehicle is dirty, and a lot of times they so big they get broken pretty easily. The new tail light from 1A Auto is exactly the same as the original. It has the mounting pins like the original. It comes with the clips, and it comes with a new harness. And a lot of times the problem is these get wet or corroded, so this new harness will help you with those problems. The new light from 1A Auto is going to fit, function and look just like your original.
You have to kind of get the harness under your vehicle a little bit, but it connects right down here. Both sides are the same. A lot of times, you can pull down and back and bring the connector down. There may be a red safety tab in here that you'd have to pull out. You'd pry it with a small screwdriver, and then you want to press on this tab here firmly while you pull it apart. Sometimes they can be kind of a real pain. There's a whole bunch of stuff here. I don't know. It looks like it's dirt. Just use a pick, or a small flat blade screwdriver to pull it out of there. That could inhibit this connector from opening up. Then clean off the connector.
Good things to use are maybe an old toothbrush or paper towels. We're actually going to use some quick-drying electrical parts cleaner, and just get that connector cleaned off as much as possible. Pull our old harness up and out. Feed the new harness down in. Make sure it goes all the way down through there and then two tabs on the side go into alignment holes there, and use your two screws and re-secure the light. Bring your connector down, reconnect the harness. It should go nice and easy, and click, and then you basically slide this part of the body harness onto this tab.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
Tools used
Phillips Head Screwdriver
Trim Tool Set
There's two screws, one screw here and one screw here. Take out Phillips head screwdriver, take these screws out. And just grab the light. I'm just gonna slide it forward. It might be a little more difficult to slide it out. It'll be clipped in right there and right there. And you can take these sockets out, there's a little button right here. Slide that out, just like that. Same with that one, and same with this one. Now underneath the vehicle, if you were gonna replace the harness, sometimes the harness comes with the light. For the passenger side, I'm going to disconnect this connector right here. And pull that out and just use a trim tool and slide that out. And just grab the harness and slide it out. Now take the harness and just slide it through. And just lay this down here and take the connector and reconnect it, lock it in place and you can reuse that retainer and attach it right there. Or can you use a wire tie to hold that on and with the new light. It's always a good idea to replace these bulbs. Generally, these are test bulbs and this would be a 3157. Slide that back in. And the same with the others and slide this in position. Slide these pins in those holes just like that. And then take the screws and then get this one started. Snug it down and snug this one down. It's good.
GM239-B100R
In Stock
Product Reviews
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4.86/ 5.07
7 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
6
1
0
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0
Fish Bowl
S
September 5, 2017
This tail light was a perfect match for a 2005 Avalanche. My old light was full of water and noticed a Gold Fish swimming around and the bulbs were out. Come to find out, it was the Tail Light Combination Junction Block Dorman 923-012 - 1ALTL00929 that was bad.
Auto Be A Merry Christmas
L
December 24, 2018
First time using your company. Shipping was a bit of a mystery but with Xmas shipping making life interesting this year it arrived got installed. Thank you for the great service and follow up. A happy customer ??
Tail light
G
February 12, 2019
I ordered this tail light, and it arrived quickly. The light itself was great, but the wiring harness was incorrect, because of a part number issue. Customer service was able to identify the problem, and refunded the price. I was satisfied in the end.
Good
H
December 12, 2019
Got it as advertised
Company review from a satisfied customer
T
January 31, 2020
Part came in a reasonable time complete and fit perfectly I would recommend the company
Good quality, good price.
Robert
March 1, 2022
Works as good as new, 5 minutes top to install.
Buen servicio confiable y rpido , e comprado espejos luces y otras partes para mi troca ??
Lorena
February 3, 2023
Me gusta comprar aqu , ase mucho tiempo compre los espejos para mi Chevrolet Avalanche ,en todo lugar me decan que tena que comprar toda la parte completa el cual recuerdo me sala muy cara , gracias a Dios y ala persona que me ense a buscar en lnea , aqu encontr lo que buscaba y por un precio increble ????
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