2004 GMC Envoy vehicle speed control problems

“The contact owns a 2004 GMC Envoy. The contact stated while driving at various speeds, the vehicle would independently accelerate without warning. The vehicle was taken to a local dealer where it was not diagnosed but continued to experience the failure. The manufacturer was informed of the failure and informed the contact that they were unable to assist. The failure mileage was approximately 135,000.”

“MY ENVOY'S CRUISE CONTROL WILL NOT ENGAGE AT ANY SPEED ABOVE 60 MPH. WHEN THE CRUISE CONTROL BUTTON IS PRESSED THE CRUISE CONTROL LIGHT WILL COME ON AND GO OFF AGAIN, WITHOUT ENGAGING THE CRUISE CONTROL SETTING. HOWEVER, AT ANYTHING 55 AND UNDER THE CRUISE CONTROL WILL ENGAGE FINE. ALSO MY 4X4 WILL NOT WORK EITHER.”

“AFTER DRIVING VEHICLE TENDS TO LUNGE FORWARD EVEN AFTER BRAKES ARE STEPPED ON OR AFTER PARKED AT A RED LIGHT, IN THE FIRST CASE DRIVING AT HIGHWAY SPEEDS, THE SPEEDOMETER FREEZES AND HANGS, DURING THIS OCCURRENCE WE DO NOT KNOW WHAT SPEED LIMIT WE ARE GOING WHICH IS SCARY AND A SAFETY CONCERN ESPECIALLY WITH CHILDREN IN THE CAR, TO TROUBLESHOOT THE PROBLEM AND BRING SPEEDOMETER DOWN TO ZERO MPH, THE CAR WOULD NEED TO BE TURNED ON AND OFF NUMEROUS TIMES TO SET BACK TO ZERO”

“WHILE GOING APPROXIMATELY 60 MPH THE LOW BEAM HEADLIGHTS JUST GO OUT WITH ONLY THE PARKING LIGHTS AND FOG LIGHTS WORKING. ALSO MOST OF THE GAUGES ON THE INSTRUMENT PANEL DO NOT WORK INCLUDING THE GAS GAUGE. AFTER SOME INTERNET RESEARCH MANY OTHERS ARE HAVING THESE SAME ISSUES.”

“SPEEDOMETER IS COMPLETELY DISABLED , RPM AND BATTERY GUAGES INOPERABLE AND GAS GUAGE SOMETIMES DOES NOT WORK. I UNDERSTAND THERE WAS A RECALL BUT I DID NOT RECEIVE ANY NOTIFICATION AND NOW I AM TOLD IT WILL COST BETWEEN $400 AND $500 TO REPAIR. *TT”

“TL* THE CONTACT OWNS A 2004 GMC ENVOY XL. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, SHE ATTEMPTED TO ACCELERATE FURTHER WHEN THE ACCELERATOR PEDAL DEPRESSED ALL THE WAY TO THE FLOOR. THE VEHICLE BEGAN TO SURGE FORWARD UNTIL BEING SHIFTED INTO NEUTRAL. THE VEHICLE WAS THEN STOPPED AND SHUT OFF. UPON RESTART, THE VEHICLE OPERATED AS NORMAL. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 79,000 AND THE CURRENT MILEAGE WAS 79,061. THE VIN WAS UNAVAILABLE.”