2003 GMC GMC Truck Brakes Problems
- Complaints
- 2about this part
- Share
- 11%of 18 total for the year
- Median mileage
- 35,025miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the brakes of the 2003 GMC GMC Truck, 11% of the 18 complaints for this model year. Where a mileage was given, the median is 35,025 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #10123736, filed 2005-06, 50 miles“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. …”
NHTSA complaint #10377916, filed 2011-01, 70,000 milesBrakes: other model years
Other parts of the 2003 GMC GMC Truck
6 complaintsElectrical system
3 complaintsEngine cooling
3 complaintsTires
2 complaintsEquipment
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSteering
1 complaintsBody and structure
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2003 GMC GMC Truck
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology