2004 Gmc Sierra 3500: Reliability Data
When Do Complaints Happen?
Distribution of NHTSA complaints by vehicle mileage at time of report.
What Fails?
Most reported component issues from NHTSA complaints.
Severity Assessment
Sample Complaint Reports
"TL*- THE CONTACT STATES THAT SOMETIME IN AUGUST OF 2006, FUEL INJECTED NUMBER 8 FAILED IN HER VEHICLE. ON DECEMBER 4TH THE ELECTRICAL SYSTEM FAILED TO WORK INVOLVING INJECTED NUMBER 8. ON DECEMBER 11TH, INJECTED NUMBER SIX ON CONTACT DIESEL ENGINE TRUCK FAILED WHILE DRIVING 55 MPH. THE CONTACT ST..."
"REFERENCE A GMC 2004 SIERRA 3500 4 WHEEL DRIVE PICK UP TRUCK, 6.6L DIESEL ENGINE WITH 6 SPEED MANUAL TRANSMISSION. THE MOLDED RUBBER AROUND THE DRIVELINE CENTER SUPPORT CARRIER BEARING (PART # 12472424) DRY ROTTED CAUSING DRIVELINE VIBRATION THAT, IN TURN CAUSED THE TRANSFER CASE TO FAIL. THE VIBR..."
"REFERENCE A GMC 2004 SIERRA 3500 4 WHEEL DRIVE PICK UP TRUCK, 6.6L DIESEL ENGINE WITH 6 SPEED MANUAL TRANSMISSION. THE MOLDED RUBBER AROUND THE DRIVELINE CENTER SUPPORT CARRIER BEARING (PART # 12472424) DRY ROTTED CAUSING DRIVELINE VIBRATION THAT, IN TURN CAUSED THE TRANSFER CASE TO FAIL. THE VIBR..."
Source: NHTSA ODI Complaints Database. Names and identifying details omitted.
When Were Complaints Filed?
Number of complaints by the year the issue occurred.
When Does Each Component Fail?
Median mileage at complaint for top components.
Where Are Complaints Coming From?
Top states by complaint count.
Who Files Complaints?
Gmc Sierra 3500 — Other Years
See how this model compares across different model years.
Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.
Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.
Data through: 2026-03-28
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