Cargo/Tailgate Light Harness

(2 customer reviews)

With Venom’s Cargo/Tailgate Light Harness installed, your 3rd brake light and your tailgate light (if equipped) will automtically activate as soon as you put your truck in reverse. This is an easy and quick DIY upgrade to give you more visibility at night while backing up that is much better over the stock reverse lights. The truck’s lights will also activate when you unlock the truck at night as a courtesy lamp. The tailgate light makes the world of a difference when hooking up to a trailer as well!

$19.99

In stock and ready to ship!

With Venom’s Cargo/Tailgate Light Harness installed, your 3rd brake light and your tailgate light (if equipped) will automtically activate as soon as you put your truck in reverse. This is an easy and quick DIY upgrade to give you more visibility at night while backing up that is much better over the stock reverse lights. The truck’s cargo lights will also activate when you unlock the truck at night as a courtesy lamp. The tailgate light makes the world of a difference when hooking up to a trailer as well! No need for expensive aftermarket lighting options and ugly lights, use whats already built into your truck! This pair great with our Mirror Light/Highbeam Harness for even more control of factory lighting. 

This fits the following trucks:

2022-2026 Silverado 1500 (Refresh)

2024-2026 Silverado 2500/3500

2022-2026 Sierra 1500 (Refresh)

2024-2026 Sierra 2500/3500

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5.0
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1-2 of 2 reviews
  1. Hookup was easy and definitely makes a difference with night reversing from the extra lighting!

  2. Easy connection. Is very helpful when backing in dark areas.

Warranty and Returns

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.

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Will it work for the 2025 2500 ZR2 truck? Jay asked on 01/14/2026

yes it will.

Venom trucks answered on 01/15/2026 store manager
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Will the Reverse Lights Come on when you when you turn your cargo lights on with the Dash Button?? Dave asked on 01/13/2026

no they will not

Venom trucks answered on 01/13/2026 store manager
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Will this work with the 2022 sierra non refresh model? David asked on 01/12/2026

that is untested.

Venom trucks answered on 01/12/2026 store manager
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Will this turn on the towing mirror lights too? Jack Holman asked on 01/12/2026

for the mirrors? it will not. however there should be setting in the infotainment system for that.

Venom trucks answered on 01/12/2026 store manager
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Will that harness fit a 2024 GMC Denali truck alanantonicci asked on 01/06/2026

yes!

Venom trucks answered on 01/06/2026 store manager
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