This will get the rear facing cargo lights on your Silverado, Sierra, or Colorado tow mirrors to work as both a cargo light and a reverse lamp. They will also illuminate when you unlock the truck with the key fob at night as a courtesy lamp. The installation is very easy and takes less than 5 minutes while following our installation video.
Important Note: The lights must be properly operating as cargo only prior to installing this harness. If your lights aren't operating at all, then you need the modify door harness kit found here: https://boostautoparts.com/collections/wiring-harnesses/products/pnp
Link to Silverado/Sierra Install Video (2014-2019): https://youtu.be/RlEgVkQLhd0
Link to Colorado/Canyon Install Video (2015-2019): https://youtu.be/er7VjjAKWts