2003 Gmc Sierra 1500 Hd: Reliability Data

Source: NHTSA — 20 complaints
20
Total Complaints
100,750mi
Median Mileage
Service Brakes
Top Issue
0
Crash Reports

When Do Complaints Happen?

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

77,000 25th Percentile
100,750 Median Mileage
126,375 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Service Brakes
4
Electrical System
3
Engine
2
Service Brakes, Hydraulic
2
Glass, Side/Rear
1
Air Conditioner
1
Fan/Motor
1
Exterior
1
Manifold/Header/Muffler/Tail Pipe
1
Instrument Cluster/Panel
1

Severity Assessment

0
Crashes
1
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"TRUCK WAS PARKED OUTSIDE AT WORK DURING THE DAY. WHEN I ENTERED THE TRUCK AND CLOSED THE DRIVER DOOR TO LEAVE, THE REAR WINDOW EXPLODED WHEN THE DOOR CLOSED. I AM NOT AWARE OF ANY OBJECTS HITTING THE WINDOW PRIOR TO THIS, OR DEFECTS, ETC. CONTACTED LOCAL GMC DEALER WHO CLAIMED TO HAVE NO KNOWLEDG..."
"OUTSIDE PASSENGER SIDE REAR VIEW MIRROR DEFROST DOES NOT WORK. *TR"
"HVAC SYSTEM WILL HANG UP ON DEFROST, IT WILL NOT RETURN TO ANY OTHER POSITION UNTIL VEHICLE IS RESTARTED WITH SWITCH IN DIFFERENT POSITION. ALSO WHEN USING VENT ON THE HIGHER FAN SETTINGS YOU CAN HEAR AND FEEL A SURGING OF AIR THE FAN IS NOT A PRODUCING A CONSTANT FLOW OF AIR. *TR"

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.

Service Brakes 4 complaints
25th: 83,500 mi Median: 103,750 mi 75th: 133,875 mi
Electrical System 3 complaints
Median: 135,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

MI: 4 OR: 3 FL: 2 PA: 2 TX: 2 00: 1 ME: 1 AL: 1 OH: 1 NY: 1

Who Files Complaints?

10%
Original Owners
90%
Second+ Owners

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