Had the same problem with speedometer as other posts with the reset button getting stuck. The word "scale" appeared in the digital readout along with the boxes[ ] going around in a circle. Pulled out the reset button, now the tach works, the odometer works, hour meter works, the tripometer works, but the needle on the speedometer reads 30 mph when stopped. Needle reads 110 mph when actually going 40 mph. Anybody know how to get the needle to go back to zero or will the speedometer have to be replaced?