Cargo bed lights, am I missing something?

Cannot seem to figure out what is going on here, with the inboard cargo bed lights. The cargo bed lights are only activating on the outside portions. I have tried all of the switches inside, using the various modes for door and tailgate operation. I even put it in Tow mode to see if that triggered the inboard lights. Does anybody have any insight?

 

Did you try hitting the brakes to see if it functions as an additional brake light?

 

This. Third brake light pretty sure.

 

Did not think of that…I will give that a try.

 

Yep…brake lights. Tunnel vision set in and could not see the obvious answer.

 

This helps. I'll check it out. Thanks