How should the LED light bar work on my dealer installed TRD grill?

How should the led light bar work on my dealer installed TRD grill? It doesn’t have its own switch. It is on with my low beam lights and off with my brights. Is that correct? Did the dealership have to wire this light in or did they just plug into an existing harness? Was there a way they could have mixed this up? I would have thought it might only be on with the brights. It seems blinding to incoming traffic to be on with my low beams. I wish it were switched separately. How hard would it be to install a separate switch?

 

Follow up. The light bar is actually switched with the fog lights. Doesn’t seem like those go together but that’s how they work. Also, they turn off with the bright lights.