2003 Gmc Sierra 2500: Reliability Data

Source: NHTSA — 193 complaints
193
Total Complaints
76,000mi
Median Mileage
SERVICE BRAKES, HYDRAULIC
Top Issue
8
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

46,500 25th Percentile
76,000 Median Mileage
115,029 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES, HYDRAULIC
33
SERVICE BRAKES
28
ELECTRICAL SYSTEM
21
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
12
STEERING
8
ENGINE
6
FUEL SYSTEM, DIESEL
6
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
5
FUEL/PROPULSION SYSTEM
5
POWER TRAIN
4

Severity Assessment

8
Crashes
5
Fires
4
Injuries
0
Deaths

Sample Complaint Reports

"THE 4X4 WHEEL DRIVE CAME ON. DEALER NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION. PH *TR"
"THE 4-WHEEL LIGHT ILLUMINATED ON THE DASH BOARD WHICH INDICATED THE 4 WHEEL DRIVE WAS ON, WHEN IT WAS NOT, THE VEHICLE WAS AT THE SHOP ON 6 OCCASIONS, AND THE DEALER WAS UNABLE TO CORRECT THE PROBLEM. *JB"
"VEHICLE TRANSMISSION NOT SHIFTING CORRECTLY CAUSING VEHICLE TO ACCELERATE TOO SLOWLY WHEN PULLING OUT ONTO HIGHWAY AND NOT PROPERLY DOWNSHIFTING. *NLM"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

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