NHTSA Complaint #10522432 — 2005 GMC ENVOY

THE SPEEDOMETER STOPS WORKING AFTER ABOUT TWO HOURS OF DRIVING. IT GOES TO ZERO. IT SOMETIMES STARTS AGAIN IF THE VEHICLE IS STOPPED AND STARTED AGAIN, BUT IT WILL QUIT WORKING IF A LONG DRIVE CONTINUES. IT WORKS PERFECTLY WHEN DRIVING AROUND TOWN ON SHORT TRIPS. THE SERVICE BULLETIN APPARENTLY SAYS TO "CLEAN GROUND CONNECTION". HOWEVER, THIS DID NOT FIX THE PROBLEM. I AM TOLD I NEED TO HAVE SPEEDOMETER REPLACED AT A COST OF OVER $600.00. *TR