HOW DO I FIX MY SPEEDOMETER?
If you do a little research on the Internet you will see that they have a problem with some of the solder joints on the instrument cluster, so it could be that or the stepper motor has failed for the speedometer. HTH
If you are handy with a soldering iron you could fix it or remove the gauge cluster and have it rebuilt. Several places online that u can mail your cluster to .
Search Chevrolet TrailBlazer Questions
Chevrolet TrailBlazer Experts