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DIY: Make 2015-2017 LS/LT headlights operate like a LTZ headlight (LED as DRL vice low beams)

Discussion in 'Exterior' started by Tylus, May 3, 2019.

  1. Tylus

    Tylus Full Access Member

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    only thing I can think of would be to unplug the associated wire to the DRL

    they don't serve any function with regard to night-time driving and turn signals.

    worst case would be they trigger a burnt out bulb indication. Page 1 of this thread has the drawing that shows what wire to disconnect. easy to reconnect if needed. just make sure to wrap the wire (seal) with electrical tape to prevent a short
     
  2. Kyle Goodman

    Kyle Goodman TYF Newbie

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    Hey Cmatt! I sincerely apologize if I'm bugging you!! I know you're probably swamped with other stuff so not trying to add to your stress by any means lol. Sent you an email and a PM on here, but whenever you do get the chance I would love to purchase the harnesses for the fog lights, LED DRL strip and the DL3 Mirror harnesses. Just let me know whenever you are available. Thank you so much!!!!!

    Kyle
     
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  3. cmatt

    cmatt Full Access Member

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    Not bugging at all. I’ll respond to your email. My day job has kept me very busy. I’m on the Gulf coast and the last few days we’ve been getting ready for hurricane Sally.


    Sent from my iPhone using Tapatalk
     
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  4. cmatt

    cmatt Full Access Member

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    Just an update on the newest version of the DRL harness. I’ve got it out to a member for installation and testing. As soon as things are verified, it will be available. I do have an early version that’s been installed and working in a customers 2015 Suburban without issue for 6 months. So this version should perform as expected.

    I do want to set expectations with regards to pricing. I typically discuss it via email directly with the customer. It will be in line with a competitor’s solution. However, this version won’t make you compromise with the headlight functionality and, frankly, is of superior build quality. The parts cost is higher and a large amount of labor is required to build. Countless hours have been spent researching, sourcing parts and building prototypes.

    The original DRL pigtails will still be offered at their same price.

    I will reiterate about the LED strip brightness on 2015-2017 factory headlight assemblies. Their brightness cannot be changed. GM has them built this way.


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  5. Dcmaynor

    Dcmaynor Full Access Member

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    Is your latest version better than what I have?
     
  6. cmatt

    cmatt Full Access Member

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    You have the DRL pigtails, correct? It’s been a while and I can’t quite remember. If so, then I would say it is better because it gives LTZ headlight functionality.


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  7. Dcmaynor

    Dcmaynor Full Access Member

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    I think so. It does appear like I have the strip as DDL, but not as bright as the real deal.
     
  8. bradac

    bradac TYF Newbie

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    6495C965-3B4F-4E74-98F1-60A270D7C605.jpeg Hey Guys,

    so I installed CMatt's latest harness and I'm happy to report it has all functions as described.

    Supports:

    LED stripe on remote start
    Parking Lights
    Automatic on when vehicle is in drive

    I took it a step further about a year ago by installing the standard 2018 headlights that have the brighter LED light bar, and I have full LED brightness. I'm going to unload a video later to show the results.

    great work Matt. This is a photo of my car in drive. It was super sunny so it's harder to see but it's working great

    AAD62FA3-69F9-4521-BC50-6EAC24211A61.jpeg
     
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  9. NappyBoy

    NappyBoy Member

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    I emailed matt a while ago still havent got any replay
     
  10. cmatt

    cmatt Full Access Member

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    Thanks Bradley! I appreciate you helping me test this harness with the 2018+ headlights.
     

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