GVWR: Class 2H: 9,001 - 10,000 lb (4,082 - 4,536 kg)
Make: GMC
Manufacturer: GENERAL MOTORS LLC
Manufacturer Id: 984
Model: Sierra
Model Year: 2004
Other Engine Info: Iron
Plant City: Pontiac
Plant Company Name: Gm Truck Group
Plant Country: United States (USA)
Plant State: Michigan
Trim: 2500 (3/4 ton)
Vehicle Type: TRUCK
Model year
COMPONENT
Complaint
1998
SERVICE BRAKES, HYDRAULIC:ANTILOCK
ERRATIC OPERATION OF BRAKE SYSTEM, CAUSING BRAKE FAILURE. REPORTING THIS TO NHTSA. *AK
2004
ELECTRICAL SYSTEM
SPEEDOMETER REGISTERS 0-70MPH WHEN VEHICLE SITTING AT DEAD STOP. REGISTERS ERRATIC WHEN VEHICLE IN MOTION. SOMETIMES READS CORRECTLY, OTHER TIMES COMPLETELY WRONG. HAVE DISCONNECTED BATTERY TO RESET SPEED SENSOR. NOTHING WORKS. *TR