2015 Gmc Sierra 3500: Reliability Data

Source: NHTSA — 40 complaints
40
Total Complaints
43,000mi
Median Mileage
EXTERIOR LIGHTING
Top Issue
1
Crash Reports

When Do Complaints Happen?

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

10,000 25th Percentile
43,000 Median Mileage
64,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

EXTERIOR LIGHTING
6
ELECTRICAL SYSTEM
4
ENGINE
4
AIR BAGS
3
UNKNOWN OR OTHER
3
SERVICE BRAKES
3
STEERING
3
VISIBILITY/WIPER
2
FUEL/PROPULSION SYSTEM
2
VEHICLE SPEED CONTROL
1

Severity Assessment

1
Crashes
3
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"TL*THE CONTACT OWNS A 2015 GMC SIERRA 3500. THE CONTACT STATED THAT A SNOW PLOW WAS INSTALLED BY A DEALER HOWEVER, AFTER THE INSTALLATION, THE INSTRUMENT PANEL WAS DIM AND THE HEADLIGHTS FAILED TO ILLUMINATE. THE TECHNICIAN UNINSTALLED THE SNOW PLOW AND THE VEHICLE RESUMED TO FUNCTION AS NORMAL. THE..."
"THE NEW TOW MIRRORS ON THIS TRUCK HAVE LED BLINKERS THAT ARE SO BRIGHT YOU CAN'T TELL IF SOMEONE IS COMING TOWARDS YOU WHEN YOU HAVE THE BLINKER ON. IT'S FLASHING RIGHT IN YOUR FACE. *TR"
"THE NEW TOW MIRRORS ON THIS TRUCK HAVE LED BLINKERS THAT ARE SO BRIGHT YOU CAN'T TELL IF SOMEONE IS COMING TOWARDS YOU WHEN YOU HAVE THE BLINKER ON. IT'S FLASHING RIGHT IN YOUR FACE. *TR"

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