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Venoms Auto Fog Light Harness is designed to fit a wide variety of GM trucks. This harness allows your factory fog lights to automatically activate as soon as your headlights activate, even while your high beams are on.
From the factory, GM disables fog lights when high beams are engaged. This harness overrides that limitation, restoring full fog light functionality for improved visibility in all driving conditions.
All compatible models and installation diagrams are provided in the full product description below.
• 2019+ GMC Sierra 1500 / Chevy Silverado 1500
• 2020+ GMC Sierra HD / Chevy Silverado HD
• 2023+ GMC Canyon / Chevy Colorado
• 2025+ GMC Yukon
• 2025+ Chevy Tahoe/Suburban
$19.99
In stock and ready to ship!
Our Auto Foglights Harness will allow you to always have your fog lights on anytime the headlights activate, regardless of light settings you have selected from inside the cab. Our harness bypasses GM’s LCM tuning to automatically turn the fog lights on. This means you will never have to turn them on manually again. If you want to wire them up so the fog lights activate when the engine starts, we will show you how to do that as well in the install video below. This will keep your fog lights on even if you activate your high beam headlights. Take your trucks lighting performance to the next level today!
NOTE: This Auto Foglights harness is compatible with our Amber DRL switchback kit and does not need changed from the install video shown below. If you have our Full Time Amber Kit for 2022-2026 full size trucks that keeps your DRL’s amber at night, please use this wiring dirgram:
Use Install video listed in the tab below this description.
Use Install video listed in the tab below this description.
Please use this diragram for the Canyon and Colorado.
Please use this diagram for 2025 and newer Yukon, Tahoe, and Suburban.Â
Please use this diragram for these trucks.
Kit Includes: Jumper harness and T-taps.
2022-2026 GMC/Chevy Auto Fog Lights Harness
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All products are backed by Venom’s 1 year free replacement warranty and supported by the best customer support around!
All returns must be made within 30 days of purchase and in new and unused condition and will be subject to a 10% restocking fee. Any damaged or modified equipment will not be returnable and will be shipped back to you.
GREAT product and SUPER easy install!
Nice look with fog lamp always on
I love the fog lights in all the time with the headlights at night.
Great addition allowing fogs to turn on automatically, easy installation, and adds additional visibility being able to run with hi beams for a great price.
Great product