instrument panel

technical service bulletin. not a recall and not free. just a notice of a common failure and repair procedures reccomended by the manufacturer. Roy

This is very common on the 03-06 GMs. The cause is the motors behind the gauges are failing, they all go out eventually. You can get it repaired here - www.drspeedometer.com and there's a DIY guide here - www.howtorepairmyinstrumentcluster.com