2003 Chevrolet Avalanche 1500 with Lower Body Cladding 6 Piece Lighting Kit DIY Solutions LHT08775

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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.

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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.

To open the hood on this 2005 Avalanche, open your door. Pull the release. The secondary release is actually under the emblem here. Push it to this side, and lift the hood up. To change this headlamp, you first have to remove the turn signal lamp. Reach down, push this tab in. Push this tab in right here, pull it out. Now, we're going to pull the headlamp away from the grill, off the tabs that it's mounted on. Push this in. Turn it counterclockwise to remove the bulb and socket. Turn the marker light bulb counterclockwise to remove it.

There are two pins, L-shaped pins, one here and one here. I'm going to unlock those to remove the light. I'm going to use a flat-bladed screwdriver to pop it out. Pull it straight out. Same thing over here. Pull it straight up and out. Put those aside. Headlamp is free. I'm going to unlock the connector on the lamp on the bulb and push it down. Pull it off. I'm going to undo the other side. I'm going to pull the clip or the lock on it away from the headlamp, and I'm going to push down on the connector at the same time to pull it off. Then, you can lift the light up and slide it out.

Here's our old yellow and discolored headlamp. It's all pitted from going down the road. You can't really see that well out of this. This is our new one from 1aauto.com, perfectly clear. You're going to have great night vision with this. It comes with two new bulbs, and look at the old one. It has the same style of mounting and the same shape. It'll fit great and look great.

I'm going to take our new head lamp. I'm going to feed that up like that. That has the adjustment for it. I'm going to plug in our connectors. Place it into the little mounting area. We'll reinstall these L-pins. This one will slide down just like that, and I can move it around a little bit to line it up. You flip it over and lock it in. Same thing with the other side. You need to wiggle the headlamp a little bit to get it in there. You want to flip it over and lock it. The headlamp is installed.

Now, reinstall your turn signal lamp. Turn this clockwise to lock it. Install the side marker bulb. Turn it clockwise to lock it. Put these tabs into the radiator support. Push this up and in. If you need to adjust the aim of the headlamp, you can turn this screw in or out.

This is a basic tutorial on how to aim the headlights on your vehicle. Find the axis of your headlights. This is usually indicated with a small dot or the headlight bulb size on the lens. If not, it's the actual center point of your headlight bulb. Transfer this mark to a vertical wall with a preferably dark color that'll allow you to back up 25 feet. Pull up and find the center line of your vehicle, as well as the center line of your headlight axis.

Mark the wall with the height of the headlights and a straight line going across at that axis height. Back your vehicle up 25 feet from the wall to the front edge of your vehicle's headlights. Turn your headlights on, and locate the adjusting screw, usually on the back side of your headlights. You'll want to rotate this until the passenger hot spot or focus of the beam is approximately two inches below the line and the driver's side is four inches below the line. We change the heights on each side so you can still get a good beam to the off side of the road on the passenger's side and have the driver's side low enough to not blind oncoming traffic.

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