A rotary knob assembly having a lightpipe affixed to a push button within a rotary knob portion that may be rotatably affixed to a vehicle control panel. The lightpipe engages a halo ring surrounding the push button and is disposed between the push button and the rotary knob portion. The lightpipe has a plurality of concentric circles recessively disposed thereon to provide illumination to the knob assembly specifically, to the halo ring and a graphic display of the push button. The rotary knob assembly has a first light emitting diode in communication with the control panel to provide light to the lightpipe. Light is transmitted and refracted through the lightpipe illuminating the halo ring surrounding the push button as well as distributes light to the recessed portion or gaps between the plurality of concentric circles which allow light to flow directly to the graphic display of the push button.