Worst 2015 GMC Sierra 3500 Problems
Top 3 most-reported issues with average mileage at failure.
Headlight/Taillight Failures
Electrical Faults
Engine Problems
Check the actual VIN — every car is different.
This page shows the model year's reputation. The VIN tells you about this specific car — accidents, title issues, odometer rollbacks. Full report just $4.99 (vs. Carfax $44.99).
All Problems by Category
Every NHTSA complaint category for the 2015 GMC Sierra 3500.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Headlight/Taillight Failures | 6 | — | — | 10,769 mi | |
| Electrical Faults | 4 | — | — | — | |
| Engine Problems | 4 | — | — | — | |
| Airbags | 3 | — | — | — | |
| Brakes | 3 | 1 | — | — | |
| Steering Defects | 3 | — | — | — | |
| Fuel System | 2 | — | — | — | |
| Wipers & Visibility | 2 | — | — | — | |
| Electrical System: Integrated Trailer Brake Control | 1 | — | — | — | |
| Electrical System:Horn | 1 | — | — | — | |
| Electronic Stability Control | 1 | — | — | — | |
| Engine & Cooling | 1 | — | — | — | |
| Transmission / Drivetrain | 1 | — | 1 | — | |
| Seat Belt Issues | 1 | — | — | — | |
| Seat-Related Issues | 1 | — | — | — | |
| Suspension Failures | 1 | — | — | — | |
| Unintended Acceleration | 1 | — | 1 | — | |
| Wheel Issues | 1 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2015 GMC Sierra 3500. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Recalls for 2015 GMC Sierra 3500
7 NHTSA recall campaigns affecting ~4,608,486 vehicles.
General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500, 2500, 3500, and Chevrolet Silverado 1500, 2500, and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator, or the inflator sidewall may rupture.
General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500 and Chevrolet Silverado 1500 and 2015 GMC Sierra 2500 and 3500, and Chevrolet Silverado 2500 and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator.
General Motors LLC (GM) is recalling certain 2015-2016 Chevrolet Silverado 2500, 3500, 1500 Crew Cab Special Service, Tahoe Police Pursuit/Special Service, GMC Sierra 2500, and 3500 vehicles. The brake pedal pivot nut may loosen, causing the brake pedal to be loose or inoperative.
General Motors LLC (GM) is recalling certain 2011-2015 Chevrolet Silverado 3500 and GMC Sierra 3500 trucks equipped with dual fuel tanks. The low fuel level sensor for the front tank may stick causing the rear tank to overfill the front tank.
General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
General Motors LLC (GM) is recalling certain model year 2015-2016 Chevrolet Silverado 1500, 2500, and 3500 heavy duty trucks manufactured October 1, 2013, to February 1, 2016, 2015-2016 Chevrolet Tahoe Police Pursuit Vehicles (PPV) manufactured March 1, 2014, to February 1, 2016, and 2015-2016 GMC Sierra 2500 and 3500 heavy duty trucks manufactured October 29, 2013, to February 1, 2016. On the affected vehicles, the brake pedal pivot nut may loosen, causing the brake pedal to be loose or inoperative.
Other GMC Sierra 3500 Years
2015 GMC Sierra 3500 — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2015 GMC Sierra 3500 reliable?
What are common problems with the 2015 GMC Sierra 3500?
At what mileage do problems start on the 2015 GMC Sierra 3500?
How safe is the 2015 GMC Sierra 3500?
Does the 2015 GMC Sierra 3500 have any recalls?
Should I buy a 2015 GMC Sierra 3500?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full GMC Sierra 3500 reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2015 GMC Sierra 3500
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
Check Any VIN — $4.99