Venom’s Auto Fog Lights Harness will allow you to activate your fog lights automatically, even with your high beams! There are 2 different ways to install and it’s user preference. Either automatically as soon as the engine starts or when your low beam headlights turn on. We show both methods in the installation video. From the factory the fog lights will not turn on with your high beams activated, this harness will correct this!
Note: If you are using the Full Time Amber Kit, your Install will be slightly different if you want the foglights to only turn on with the headlights. Please see the full description below.
$19.99
In stock and ready to ship!
Our Auto Foglights Harness will allow you to always have your fog lights on anytime the engine is running, regardless of light settings you have selected from inside the cab. As soon as you start your engine, 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 only activate when the headlights turn on using the parking lights, 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: If you have our Full Time Amber Kit that keeps your DRL’s amber at night, Instead of using pin 1 (white/yellow wire) on the pink connector like we do in the video below, you will use pin 10 (Solid yellow wire) on the same connector. This image is what it will look like when correct.
Note: This harness is compatible with our Amber DRL switchback kit and does not need changed from the install video.
This fits the following trucks:
2022-2026 Chevy Silverado 1500/2500/3500
2022-2026 GMC Sierra 1500/2500/3500
2023-2026 GMC Canyon (Different tap locations, contact us for installation.)
Kit Includes: Jumper harness and T-taps.
Auto FogLights 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.
Auto FogLights Harness
they will come on automatcailly and stay on.
Venom trucks answered on 01/15/2026 store managerIt will not.
Venom trucks answered on 01/02/2026 store managerThere is a diagram in the full description tab. Since you have the full time kit, you'll want to use pin 10.
Venom trucks answered on 12/23/2025 store manageryes it will!
Venom trucks answered on 12/23/2025 store managerit will not.
Venom trucks answered on 12/13/2025 store managerSorry, no questions were found




Hookup was simple and completed in minutes! Having the extra fog lights improves nightly driving in all conditions and don’t have to worry about losing the functionality of auto high beam!
Works great and allos=ws fog lights to remain on with bright headlights.
Better daytime look
Easy install and the support team was very helpful when I reached out with pre install questions.
Got the bright drl and the constant fog lights. Fires up looking like this now! Awesome product and easy install! Love it!