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2019-2026 GMC/Chevy Auto Fog Lights Harness

$19.99

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.

Please see the install video listed in the Install video tab below. The install video only covers 2022-2026 Sierra/Silverado 1500 refresh trucks and 2024-2027 Sierra/Silverado HD trucks. Please see the diagrams in the full description for all other trucks listed below.

Compatible Vehicles:

• 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

Quantity:

Auto FogLights Harness

Venom’s Auto Fog lights 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. Automatic high beams are maintained as well.

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!

Auto FogLights Harness Fitment

2022-2026 Sierra & Silverado 1500

Use Install video listed in the tab below this description.

2024-2026 Sierra HD & Silverado HD

Use Install video listed in the tab below this description.

2023-2026 Canyon/Colorado

Please use this diagram for the Canyon and Colorado.

canyon fog lights

2025+ Yukon, Tahoe, and Suburban

Please use this diagram for 2025 and newer Yukon, Tahoe, and Suburban.

yukon fog light

2019-2022 Sierra/Silverado 1500 Non refresh &
2020-2023 Sierra/Silverado HD

Please use this diagram for these trucks.

auto foglights

Kit Includes

Kit Includes: Jumper harness and T-taps.