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2003 GMC GMC Truck

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 14 of 18 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Power Train. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Service Brakes, Hydraulic complaints

2 reports
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70,000 miles · Jan 19, 2011
Engine And Engine CoolingPower TrainService Brakes, Hydraulic

BRAKE LINES, TRANSMISSION LINES AND ENGINE COOLANT LINES ALL FAILING ON 2003 GMC 2500 HD SIERRA AS WELL AS ON 2004 CHEVY SILVERADO HD 3500. THESE PROBLEMS HAVE CAUSED NUMEROUS AMOUNTS OF TIME TO REPAIR AND REPLACE, AND TODAY THERE WAS A CATASTROPHIC BRAKE FAILURE ON THE 2003 HD GMC WHICH ALMOST RESULTED IN A DEADLY ACCIDENT.…

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BRAKE LINES, TRANSMISSION LINES AND ENGINE COOLANT LINES ALL FAILING ON 2003 GMC 2500 HD SIERRA AS WELL AS ON 2004 CHEVY SILVERADO HD 3500. THESE PROBLEMS HAVE CAUSED NUMEROUS AMOUNTS OF TIME TO REPAIR AND REPLACE, AND TODAY THERE WAS A CATASTROPHIC BRAKE FAILURE ON THE 2003 HD GMC WHICH ALMOST RESULTED IN A DEADLY ACCIDENT. THESE LINES SHOULD NOT HAVE RUSTED THEY WAY THEY ARE ESPECIALLY ON TWO (2) DIFFERENT VEHICLES FROM THE SAME MANUFACTURER. THESE VEHICLES WERE PRODUCED WITH INADEQUATE PARTS FOR ALL LINES ON THE UNDERSIDE OF VEHICLE. THERE SHOULD NOT BE 1,000 PLUS COMPLAINTS FROM CONSUMERS REGARDING THE RUSTING OF THESE COMPONENTS, OF WHICH HAVE CAUSED SEVERAL MAJOR AND LIFE SAFETY ISSUES. THE BRAKE LINES ARE AN INTEGRAL PART OF ANY VEHICLE AND TO HAVE THEM RUST THRU TO THE DEGREE OF ALL THE COMPLAINTS THERE IS OBVIOUSLY AN ISSUE WITH THE COMPONENT THE MANUFACTURER INSTALLED ON THESE VEHICLES. BETWEEN OUR 2003 AND 2004 GMC AND CHEVY TRUCKS RESPECTIVELY, WE HAVE REPLACED ALL OF THE TRANSMISSION COOLANT LINES IN BOTH VEHICLES, OIL ENGINE LINE IN 1 VEHICLE, READY TO CHANGE IN OTHER VEHICLE DUE TO RUST, AND NOW BRAKE LINES IN THE 2003 AND WILL NEED TO REPLACE IN 2004 DUE TO RUST AS WELL. THE ENTIRE UNDERSIDE COMPONENTS ARE COMPLETELY RUSTED THROUGH. IN ADDITION, THE STRAPS THAT HOLD THE FUEL TANK ARE ALSO NEEDING TO BE REPLACED DUE TO RUST. *TR

NHTSA ODI #10377916

50 miles · Jun 1, 2005
Parking BrakeService Brakes, Hydraulic

DT: CONSUMER STATES: PARKING BRAKE DOES NOT WORK PROPERLY, IT WILL NOT WORK WHEN INCLINED ON A HILL, FACING BACKWARDS. TOOK VEHICLE TO THE VEHICLE TO THE DEALER, AND DEALER SAID THAT IT WAS NORMAL, THEY SAID THEY USED A DIFFERENT SYSTEM FROM THE DISC BRAKES.*AK

NHTSA ODI #10123736

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.