Kitchenaid dishwasher stuck on normal cycle

Cycle selector is stuck on normal cycle. Dishwasher otherwise works just fine. Top panel cycle selector buttons don’t light or respond prior to pressing the start/on button. When I open the door to check the top panel after pressing the start button, the "normal" and "add rinse aid" buttons are lit. How can I fix my DW (besides adding rinse aid :))? Thanks!

Very likely the problem is a bad control panel.

Here are the breakdown diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5139166

Gene.