Bed lights.

[Nasty]

I was installing my tonneau cover and after 5 months of owning the truck I noticed the lights in the bed. Only problem is how do I turn them on? I have no idea where I put the manual

[JimCost2014]

try this,

Cargo Box Lamp

With the vehicle in Park, press to turn the cargo lamp and under-rail pickup box lights on or off. The button indicator will illuminate when the lights are on.

[2016 Sierra Owner]

It's the little button that looks like a truck in the switches under the hvac controls.

[cbrsilv15]

Google works too.

[Nasty]

I did Google shortly after. This thread cab be deleted

[Scuba78]

i noticed mine after installing the cover. went to use the light and saw them on. excellent design option. good for when the cover is closed too