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Hello everyone, I have a 2017 L5P Denali, and I recently purchased a pair of AlphaRex Nova series headlights and switchback mirrors. After installing, I found out that my automatic DRL's no longer work, but I can still turn my knob for my parking lights. I have tried troubleshooting by disconnecting the batteries and "resetting" the BCM. What do you guys think the issues could be and how could I fix it?

Really hoping someone can help. So I bought the Oracle halo kit and they sent the wrong one. After I opened the headlight housing in the oven. And FYI to anyone who is interested there are two ways to seal the headlights. One is an easy to pull apart glue and the other is a heat activated plastic that you have to almost destroy the housing to get apart. Yes I got the second one in my truck. But anyway I had to ducttape the lights together so I can get to work. The right parts finally arrived and I noticed a few finger print smudges inside the lens. I sprayed the duplicolor wax and grease remover I used to clean parts with all the time and there is some sort of coating inside that turned white and cracked. Ive tried to get it all out and everything I do just makes it worse. Does anyone know where I can buy just the lens? Ive looked and cannot find the lens listed alone. Im sure with people baking the headlights this is not the first time someone has needed just the lens. Please help this has been a huge nightmare and I just want my truck back together.

I have an 04, I have no low beams, high beams will only flash, no fog lights, but parking lights all work. What may be the cause. I know fuses and relays are all good. I have a new headlight switch on order but not sure if that’s really the issue or if it’s the fuse box itself.

LED headlight bulbs become the best replacement for the factory halogen bulbs. However, when choosing and replacing the LEDheadlight bulbs, you will find some problems. Why Choosing LED Headlight Bulbs? LED headlight bulbs are known to offer more benefits as compared to other standard bulbs. LED headlights are widely used to upgrade halogen bulbs in vehicles. LED headlight bulbs are known to be highly energy efficient. They use less power to produce the same amount of light output as halogen bulbs. LED headlight bulbs consume less than 60% of the total energy required to power a halogen bulb. This means your car will need less fuel to run the alternator. In addition, using LED saves power for other electrical devices such as the stereo and phone. LED headlight bulbs also have a longer lifetime as compared to halogen bulbs. If they are supplied with the right amount of power, they offer at least 20,000 working hours. This saves your money since you don’t have to replace them regularly. These headlight bulbs also have an outstanding optical performance. You can easily control the direction of the light to maximize visibility. This allows you to direct the beam of light at a low angle to avoid causing glare or blinding the drivers in oncoming vehicles. Vehicles with LED headlight bulbs produce a brighter beam of light than halogen bulbs. This gives you move visibility especially at night and during bad weather such as snow. Better visibility enables the driver to make proper judgment and avoid unnecessary accidents. The LED headlight bulbs are also easy to install. You can buy and an LED retrofit-kit which allows you to replace the halogen bulbs in a few steps. The bulb doesn’t require any modification in the wiring of your headlights and it doesn’t affect the performance of other electrical components. How to Fix the Problems When Upgrading The Headlights? It is easy to upgrade your headlights with LED headlight bulbs. However, you can encounter various problems if you don’t use the right LED headlight bulbs. Low-quality LED bulbs have poor performance and they can cause some safety issues. Some cheap bulbs are not designed with safety in mind and you will notice that some of them produce an extremely bright light beam. Strong light causes glare and makes it difficult for other drivers to see. Such LEDs can cause eye problems and even accidents at night. LED headlight bulbs are known to produce less heat but they can also overheat when used for a long period of time. Some low-cost LED bulbs lack small fans and heat sinks for heat dissipation. Such bulbs should not be used in headlights since they can overheat and fail after some time. Flicker or Dashboard Warning? When you install LED headlights on vehicles without Canbus, they will work perfectly without adding any additional driver. However, you can experience some problems if your vehicle uses a Canbus (Controller Area Network Bus). Canbus checks the electrical components of your vehicle and sends their status to the control unit. You might encounter problems such as dashboard error that notifies you that the bulb is out, flickering of the headlights, bulbs not lighting up or even low light beam. Therefore, it is advisable to check if your vehicle has Canbus before upgrading any electrical component. But it is easy to fix these problems. Just buy an appropriate Canbus Driver for your vehicle and install it after replacing the bulb. It is advisable to use some LED bulbs series such as the T1 and W series since they come with Canbus drivers. These bulbs series are a better option when it comes to replacing halogen bulbs with LED headlights, and you do not know if your car is equipped with the Canbus system. Check the Factory Bulb Type But Still Cannot Put The New One In? Before you buy led bulbs, you have to check your car manual or ask an expert so that you can select the right bulb type. However, some LED headlight bulbs cannot be 100% installed in some vehicles even if you choose correct bulbs with the right plug-type fitting. Vehicles such as BMW, Audi, Mercedes-Ben, Volkswagen, Buick, Hyundai, and others that needs H7 led bulb for high beam or low beam need to use the special bulb holder. If the factory H7 bulbs have the bulb holders, you can use them on the new LED headlight bulbs. But some factory bulbs and bulb holders are fixed together. So you may need to purchase the bulb holders according to your vehicle type. Fortunately, Auxbeam provides you with H7 LED bulb holders that can allow you to fit LED headlight bulbs in these vehicles. Auxbeam has got every H7 LED bulb holder ready for you to choose. After you have purchased the LED headlight bulbs and the H7 led bulb holders, you should make the right connections on the terminals to avoid damaging the headlights. The Factory Dust Cover Cannot Fit In. Dust cover is an important item in the headlights since it prevents dust from getting into the bulbs. Dust can hinder heat dissipation and make the bulbs to fail. You can buy the right LED headlight bulbs but discover that the installation process cannot be completed since the cover cannot be reinstalled. Some LED headlights are usually designed with a bigger heatsink. The heat sink occupies most space and it doesn’t allow the rubber dust cap to be reinstalled. You can also get an LED headlight with a massive fan which occupies more space. The big fan gets too close to the dust cover and this prevents it from getting sufficient airflow. This hinders the fan from functioning properly and the bulb can get too hot and fail prematurely. Some people try to solve these problems by drilling a hole on the dust cover and trimming some parts to accommodate the massive heat sink. However, this is a bad approach since it is time-consuming and you can accidentally damage some components. All the components of an LED are important and there is no way you can remove the big heat sink or fan from the bulb. These components provide cooling which determines the durability and light stability of the bulb. In addition, the headlights require a dust cover and you can’t do away with it if you want your bulbs to last for a long period of time. You can choose Auxbeam T1 series or A2 LED headlight bulbs. They are designed in small bulb size. Thus, you dust cover will fit in. The reliable solution is to use the Auxbeam headlight dust cover which fits perfectly in all types of vehicles. This dust cover accommodates LED headlights with large heat sinks or large fans for cooling the bulb. Conclusion There are many different situations why the LED headlight bulbs do not be installed and work normally. Sometimes, it is not the LED headlight bulbs have some problems. There are some little problems and accessories you also need for your vehicles. If you want to know some other problems that do not mention here, you can tell us and we will try to help you fix that. If you want to know more about LED lighting and vehicle modified parts, please read on to know more.

I have a 2015 GMC Yukon with condensation in the right and left front headlight assemblies. My turn indicator stopped working which usually indicates a burned out bulb. I did not notice the condensation and I took my Yukon to the dealership for what I thought was going to be a simple bulb replacement. The headlight assemblies are completely sealed which requires the replacement of the complete lamp assembly if a bulb filament burns out. The dealership told me the bulb malfunction is likely caused by the condensation. Since my visit to the dealership yesterday, the turn indicator has worked intermittently. A call back to the dealership with the update and the response was that the condensation likely caused corrosion and still needed to be replaced. They advised me the other headlight was likely to malfunction as well. It is obviously an ongoing issue since the technical service bulletin was modified to include 2016-17 models. GMs technical service bulletin notes that if certain conditions are noted (such as in my case), the replacement of the lamp assembly may not correct this condition. The condensation covers the entire lens. I live in Florida and there is little temperature differential and we have mid to high humidity most of the time. The dealership quoted me $1256 for parts and labor to replace the headlight assembly PER SIDE. Tech Service Bulletin.pdf Tech Service Bulletin.pdf Tech Service Bulletin.pdf Tech Service Bulletin.pdf

Anyone have any pics of their trucks with either a tint film or blacked out taillight cover installed? In the market for either one. Struggling to find a website that carries some with good reviews. Going for a stormtrooper type of look I guess lol. Pearl body with black accents.

I’ve having trouble figuring out what lights are what on my 2015 Sierra 1500 SLE. All pictures and videos of changing out the lights, the headlight is a completely different layout than mine. If anyone could take the picture I’ve attached and mark it up with what each light is would be great. Each side has a different light burnt out and I’d like to get them all changed. Thank you.

I replaced my pass side light bulb about 5 months ago with the same type of halogen bulbs that they come with out of the factory and one day i realized that the same side as before went out. Before that one went out i had a set of after market LED lights. these to be exact https://www.amazon.ca/Lumen-9012HLC-G7-LED-Performance-Bulbs/dp/B01N5Q0TMA i ran those LED's on my truck and they looked great! everything was plug and play they lasted for about 4 months when my pass side bulb gave out on those too. when i took out the bulb to inspect it one of the LED diodes was blown out. I wasn't too surprised by that because sometimes after market parts can be a bit cheaper quality. But when my OEM halogen bulbs went out. thats 3 sets of bulbs in less than 2 years. I am just wondering. Is this bad luck?? Have any of you had this issue before?? if you did what was causing it?? any troubleshooting tips?? I really dont want to keep buying light bulbs every 5 months even the halogen bulbs are a little expensive

Have a set of used Chevrolet Headlight Assemblies off my 2019 Silverado Custom Trailboss. Truck has 8,000 miles on it / lights are in “like new” condition with no issues . asking $700 for the pair plus shipping (most places in US is approx $85). I’ve got more pics but I can only add 1 due to the restraint on attached pics on this post so message me if your interested. I just recently did a headlight conversion , grill change to the high country headlight assemblies is why these are for sale. I also have the black custom Trailboss grille for sale if anyone needs that as well. It’s listed separately.

Hi all I got a 2019 Denali Sierra, I have read all these post and they say turn off auto highbeam use the button on the end of the turn signal, but i have no button on mine like the other 2019s i have looked at. does anyone know if there is a button or switch to turn off and on. other than turning headlights on manual or turning foglights on

Hey all, I just did a swap from factory bulbs to some Xenon Pro 6000k LED bulbs in both the headlight and fog light locations. Issue is that the fogs work great. But the headlights work for a minute then turn off and don’t return on. I have bought the canbus modules to add to the line but when attached they don’t work at all. Seems to be an issue from when the computer switches the voltage to the headlights for the DRLs. If anybody has had any experience or ways to fix this issue I would greatly appreciate it. I’m about to pull my hair out Thanks