During nighttime hours when dashboard lighting for the civilian MB 4WD jeep is activated, it becomes apparent that the lighting for the steering wheel buttons do not rotate with the steering wheel.
The lighting for the steering wheel buttons seem to exist on a "layer" that conforms tightly to the contours and placement of the buttons in the steering wheel's neutral, straight-ahead position; but such a layer is fixed in that neutral position and does not turn/rotate with the wheel.