2019-2023 GM Truck LED Taillight Harness ambient lighting a manual dim mirror will

a manual dim mirror will have a flip lever on the bottom side of the mirror

HUD Retrofit Kit Includes:

Variable control module that mounts under the seat and once set is ready to go

Before calling

some states require them

2019-2023 GM Truck LED Taillight Harness ambient lighting a manual dim mirror willThis is the harness needed to add the factory 2019 2023 LED taillights to your 2019 2023 new body style GM Truck, that didn't come with the LED taillights. This harness is a simple plug and play harness which does include load resistors to prevent hyper flash. This harness is not for the 22 23 refresh 1500 models. Please make sure that the new taillights have the 3 foot harness with them, as our harness is made to plug into it and not directly into