Homestar Runner

2016 Ford Fusion Energi SE problem with the instrument cluster. Recently the car threw code P0135. Changed the front O2 sensor and reset the check engine light. When putting the key in the ignition and turning it to the ACC position the SmartGauge is active and the battery level, fuel gauge and engine temp are visible. Once the car is on (key is in the run/on position, car is ready to drive) the SmartGauge/instrument cluster goes blank, completely dark on both sides of the speedometer. Has anyone had this problem or have any suggestions on how to resolve it? I don't like driving it around not being able to actively monitor fuel level and engine temp. Thanks.