Why does 2003 Buick Century's odometer display not light up?

The odometer display on a 2003 Buick Century may not light up due to a blown fuse, a faulty bulb, or an issue with the instrument cluster itself. Additionally, a malfunctioning speed sensor or wiring problems could also contribute to the display not functioning properly. It's advisable to check the fuse first, and if that's not the issue, consider inspecting the instrument cluster or consulting a professional mechanic for further diagnosis.