GVWR: Class 2G: 8,001 - 9,000 lb (3,629 - 4,082 kg)
Make: GMC
Manufacturer: GENERAL MOTORS LLC
Manufacturer Id: 984
Model: Sierra
Model Year: 2003
Other Engine Info: Iron
Plant City: Fort Wayne
Plant Company Name: GM Truck Group
Plant Country: United States (USA)
Plant State: Indiana
Trim: 2500 (3/4 ton)
Vehicle Type: TRUCK
Model year
COMPONENT
Complaint
2000
VEHICLE SPEED CONTROL:CRUISE CONTROL
ENGINE CHECK LIGHT HAS COME ON AT LEAST 6 DIFFERENT OCCASIONS. THE DEALER REPORTED AN ASSIGNED REASON FOR THE FAILURE EACH TIME. THEN ON THE LAST OCCURRECE THEY DID NOT EVEN TROUBLE-SHOOT THE FAILURE. INSTEAD THEY REPROGRAMMED THE PROM FOR THE ENGINE. IMMEDIATELY AFTER THIS MY FUEL ECONOMY WENT FOR 12-14 MPG TO 8-9 MPG, THE ENGINE IDLE IS ROUGH (SOMETIMES ALMOST STALLS) AND ON OCCASION THERE IS A FUEL SMELL. AFTER COMPLAINING ABOUT THESE ITEMS THE DEALER "CAN NOT FIND ANYTHING WRONG" GMC HAS REFUSED ALL MY ATTEMPS TO HAVE A REGIONAL SUPPORT MANAGER CONTACT ME. IN ADDITION TO THIS THE FUEL PUMP HAS MADE A LOUD BUZZING NOISE ( YOU CAN HEAR INSIDE THE VEHICLE WITH THE WINDOWS UP). THE DEALER SAID THIS WAS "NORMAL".*AK
2003
VEHICLE SPEED CONTROL
WHILE DRIVING ON THE HIGHWAY, MY 2003 GMC SIERRA 2500 DISPLAYED A "REDUCED ENGINE POWER" WARNING ON MY DASHBOARD. MY VEHICLE LOST ALL SPEED CONTROL, DECELERATING FROM 65 MPH TO 20 MPH IN A MATTER OF SECONDS. I IMMEDIATELY PULLED OVER TO THE SIDE OF THE HIGHWAY AND SHUT MY TRUCK OFF. ONCE I RESTARTED THE VEHICLE, THE MESSAGE WAS GONE AND MY TRUCK WAS FINE. IT WAS A VERY SCARY INCIDENT NOT BEING ABLE KEEP THE RIGHT SPEED FOR THE CONDITIONS ON THE HIGHWAY. *TR