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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

Equipment complaints

1 reports
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Mileage unknown · Dec 29, 2006
Equipment

MY 2003 GMC SIERRA 2500HD JUST STARTED HAVING SPEEDOMETER PROBLEMS. ALL OF A SUDDEN I WAS DRIVING DOWN A COUNTRY ROAD TRAVELING ABOUT 45 MPH BUT MY SPEEDOMETER SAID I WAS GOING 90 MPH. THEN IT ALL OF A SUDDEN WENT TO 120 MPH AND EVENTUALLY IT PEGGED OUT COMPLETELY. WHEN I TURN MY ENGINE OFF ALL OF THE OTHER GAGES GO OFF BUT THE …

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MY 2003 GMC SIERRA 2500HD JUST STARTED HAVING SPEEDOMETER PROBLEMS. ALL OF A SUDDEN I WAS DRIVING DOWN A COUNTRY ROAD TRAVELING ABOUT 45 MPH BUT MY SPEEDOMETER SAID I WAS GOING 90 MPH. THEN IT ALL OF A SUDDEN WENT TO 120 MPH AND EVENTUALLY IT PEGGED OUT COMPLETELY. WHEN I TURN MY ENGINE OFF ALL OF THE OTHER GAGES GO OFF BUT THE SPEEDOMETER STAYS AT 120 MPH +. SOMETIMES IT FLUCTUATES BETWEEN 70 AND 120 + BUT IT IS NEVER CORRECT. THIS SEEMS LIKE A HUGE SAFETY ISSUE AND IT APPEARS FROM READING ONLINE THAT THERE ARE TONS OF OTHER PEOPLE OUT THERE WITH THE SAME PROBLEM. THIS SEEMS LIKE SOMETHING THA GMC SHOULD FIX FOR FREE CONSIDERING THE SAFETY ISSUES. WE DONT HAVE THE MONEY TO SPEND ON SOMETHING THAT IS OBVIOUSLY THE MANUFACUTRERS FAULT.

NHTSA ODI #10177377

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.