Hello, I have a 2020 1500 GMC Sierra Denali. My 3rd brake light is not working, also when I open the door the cargo light doesn't come on. But if I turn on the cargo light via switch it works,
I checked the fuse for the CHML its good. I unplugged the pink and brown plug to the left of the brake pedal to make sure I have a good connection, I need a good wiring diagram, and of course it just out of warranty
I checked the fuse for the CHML its good. I unplugged the pink and brown plug to the left of the brake pedal to make sure I have a good connection, I need a good wiring diagram, and of course it just out of warranty