I know you're thinking to yourself, "this guy's an idiot" but I confirmed again early this morning that the brightness wheel has no effect on the nav screen. Just to make sure it wasn't the light sensor picking up a porch light or something, a laid a towel over the center of the dash to cover up the sensor. Turned the vehicle on, turned on the headlights, and rolled the wheel all the way down - turns off the dash lights. Still nothing. I played with different spots on the brightness wheel and still nothing.
Someone above mentioned the day mode that can be accessed through settings...I only have two options under Display settings; General and Camera. Tried in park, while moving, headlights on/off, and still only two options.
This can't be this hard...what am I missing?