IllustrationBRAKE LINE LEAKS, BRAKE STOPPED WORKING BECAUSE OF RUSTED BRAKE LINES. ALSO FUEL AND TRANSMISSION LINES ARE RUSTED BADLY. *TR
2003 GMC Sierra 2500
Owner reports · Recalls · Investigations
More warning signs than most Sierra 2500 years
Owner complaints for the 2003 GMC Sierra 2500 are substantially higher than the model-year median of 46.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sierra 2500 years →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
140–25K
2825–50K
2950–75K
2075–100K
34100–150K
17150K+
142 reports with mileage · 18 unknown
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.
- Service Brakes, Hydraulic. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
7 crash reports4 fire reports4 injury reports
Fuel System, Gasoline complaints
3 reportsTL* THE CONTACT OWNS A 2003 GMC SIERRA 2500. THE CONTACT STATED WHILE DRIVING THE SERVICE BRAKE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO PERFORMED A DIAGNOSTIC TEST THAT LOCATED THE FAILURE WITHIN THE BRAKE AND FUEL LINES. THE BRAKE AND FUEL LINES WERE CORRODED WHICH CAUSED THE BRAKE FLUID AND FUEL TO LE…
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TL* THE CONTACT OWNS A 2003 GMC SIERRA 2500. THE CONTACT STATED WHILE DRIVING THE SERVICE BRAKE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO PERFORMED A DIAGNOSTIC TEST THAT LOCATED THE FAILURE WITHIN THE BRAKE AND FUEL LINES. THE BRAKE AND FUEL LINES WERE CORRODED WHICH CAUSED THE BRAKE FLUID AND FUEL TO LEAK. A COMPLAINT WAS FILED WITH THE MANUFACTURER. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE FAILURE AND CURRENT MILEAGE WAS 76,000.
TL*THE CONTACT OWNS A 2003 GMC SIERRA 2500 HD. WHILE DRIVING 35 MPH, THE WARNING LIGHTS ON THE INSTRUMENT PANEL CONTINUED TO FLASH ON AND OFF. IN ADDITION, THE WINDSHIELD WIPERS ACTIVATED AND SMOKE WAS NOTICED UNDERNEATH THE HOOD. THE CONTACT HAD BEEN DRIVING FOR SEVERAL MINUTES BEFORE NOTICING THE SMOKE. THE HOOD COULD NOT …
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TL*THE CONTACT OWNS A 2003 GMC SIERRA 2500 HD. WHILE DRIVING 35 MPH, THE WARNING LIGHTS ON THE INSTRUMENT PANEL CONTINUED TO FLASH ON AND OFF. IN ADDITION, THE WINDSHIELD WIPERS ACTIVATED AND SMOKE WAS NOTICED UNDERNEATH THE HOOD. THE CONTACT HAD BEEN DRIVING FOR SEVERAL MINUTES BEFORE NOTICING THE SMOKE. THE HOOD COULD NOT BE OPENED AND THE FIRE DEPARTMENT WAS CALLED. A POLICE REPORT WAS FILED. TEN MINUTES LATER, THE VEHICLE WAS ENGULFED IN FLAMES AND DESTROYED. THE FAILURE AND CURRENT MILEAGES WERE 65,000. UPDATED 09/25/08 *BF THE CONSUMER STATED IT WAS A POSSIBLE FUEL LINE FAILURE. UPDATED 09/26/08. *JB
Official recalls
0No 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
0No exact-year investigations in this snapshot.