2003 Gmc Sierra 1500: 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
"I WAS ON MY WAY HOME FROM WORK AND I SMELLED A WEIRD SMELL. I THOUGHT MY AIR CONDITIONING MAY BE MESSING UP SO I TURNED OFF MY AIR AND OPENED MY WINDOW. I STILL SMELLED THE WEIRD SMELL WITH THE WINDOW DOWN SO I ASSUMED IT WAS AN ODOR FROM THE CAR IN FRONT OR JUST GENERALLY OUTSIDE. I NOTICED IN M..."
"DT*: THE CONTACT STATED THAT WHILE DRIVING 15 MPH AND MAKING A RIGHT TURN, THERE WAS A CLUNKING NOISE UNDER THE HOOD, AND A SHAKING IN THE STEERING WHEEL. THE VEHICLE WAS TAKEN TO A SERVICE DEALER, WHERE THE DEALER REMOVED THE SHAFT SECTOR, REGREASED IT, AND REINSTALLED IT."
"DT*: THE CONTACT STATED THAT THE VEHICLE WAS EXPERIENCING UNWARRANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THE VEHICLE IS REGISTERED IN MICHIGAN. THE VEHICLE WAS TAKEN TO THE DEALER ON 12/15/06 WHO DETERMINED THAT THE V..."
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 1500 — Other Years
See how this model compares across different model years.
Active Recalls (4)
Federal safety recalls issued for this vehicle.
Extend Your Brake Life
Based on the most common issues reported for this vehicle.
- Replace brake pads before they wear to the metal — rotors cost 3x more
- Flush brake fluid every 2-3 years regardless of mileage
- Don't ride the brakes downhill — use engine braking
- Address any grinding, pulsing, or pulling immediately
- Have brakes inspected during every tire rotation
Vehicle Rankings
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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