I have a 2005 G6 (3500 engine, auto trans). No mph or miles driven show up on dash. It stopped around 99,000. Is there a fuse or a sensor somewhere to make it work? The mph is a needle and the miles driven is a digital read out.

If your odometer and speedometer stopped working, it's either the gauge cluster itself went bad, or maybe the BCM is shorting out causing not a proper read out. Does anything show up on the odometer at all?