2015 GMC Sierra 3500 Problems, Complaints & Recalls
- Compared with other Sierra 3500 years
- More complaints than other years 4th of 31 for complaints
- Safety recalls
- 7 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 31 complaints with NHTSA about the 2015 GMC Sierra 3500. That ranks 4th out of 31 Sierra 3500 model years for complaints. The most reported problem area is electrical system (6 complaints, 19%), typically at around 50,520 miles. Complaints mention 1 crash, 1 fire, 1 injury. There are 7 safety recalls covering this model year. NHTSA has opened 1 defect investigation involving it.
- 31owner complaints
- 7safety recalls
- 1NHTSA investigations
- 1complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2015 GMC Sierra 3500 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Electrical System | 6 | 19% | 50,520 | — | — |
| Exterior Lighting | 6 | 19% | 3,530 | — | — |
| Engine | 4 | 13% | 36,500 | — | — |
| Air Bags | 3 | 10% | 155,000 | — | — |
| Service Brakes | 3 | 10% | 50,000 | — | — |
| Steering | 3 | 10% | 68,000 | — | — |
| Unknown or Other | 3 | 10% | 45,520 | — | — |
| Fuel/propulsion System | 2 | 6% | 96,833 | — | — |
| Vehicle Speed Control | 2 | 6% | 38,500 | — | — |
| Visibility/wiper | 2 | 6% | 32,030 | — | — |
| Electronic Stability Control (esc) | 1 | 3% | 50,000 | — | — |
| Engine and Engine Cooling | 1 | 3% | 48,815 | — | — |
| Power Train | 1 | 3% | 40,000 | — | — |
| Seat Belts | 1 | 3% | — | — | — |
| Seats | 1 | 3% | 9,000 | — | — |
| Service Brakes, Hydraulic | 1 | 3% | 37,000 | — | — |
| Suspension | 1 | 3% | 5 | — | — |
| Wheels | 1 | 3% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2015 GMC Sierra 3500 recalls (7)
Tap a recall to see the problem, the risk and the fix.
Air bags:side/window:curtain:inflator
Problem: 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.
Risk: A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.
Fix: Dealers will replace the left and right side RRAB modules, free of charge. Interim owner notification letters informing owners of the safety risk were mailed on August 18, 2021. Owners will receive a second notice when the remedy is available. Phase I owner notification letters were mailed on May 5, 2022. Phase II owner notification letters are expected to be mailed on May 31, 2022. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. This recall supersedes NHTSA recall number 20V-736. GM's number for this recall is N202324251.
Air bags:side/window:curtain:inflator
Problem: 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.
Risk: If the end cap separates from the inflator, the compressed gas will escape and the end cap can be propelled into the vehicle, increasing the risk of injury or a crash.
Fix: GM will notify owners, and dealers will replace the RRAB modules on the left and/or right side, free of charge. Interim owner notification letters were mailed on December 22, 2020. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. Note: GM filed a new recall, number 21V-504 that supersedes this recall. All vehicles previously recalled under 20V-736 will now be repaired under the new recall number 21V-504. GM's numbers for this recall are N202309680, N202309681, and N202309682.
Service brakes, hydraulic:pedals and linkages
Problem: 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.
Risk: If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehicle by using the brake pedal. Additionally, a loose pedal may also interfere with the accelerator pedal. Either condition may increase the risk of a crash.
Fix: GM will notify owners, and dealers will add adhesive to the nut and reinstall the nut with increased tightness, free of charge. The recall began October 3, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18278. Note: The vehicles in this recall need this additional remedy despite being covered by recall 16V069 for brake pedal loosening.
Fuel system, gasoline:storage:auxillary tank
Problem: 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.
Risk: If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.
Fix: GM has notified owners, and dealers will replace the rear tank fuel pump or update the fuel-level sensor software, as well as inspect the front tank, replacing it as necessary, free of charge. The recall began December 11, 2017. Owners may contact GM customer service for Chevrolet 1-800-222-1020 or for GMC customer service at 1-800-462-8782. GM's number for this recall is 17399.
Seat belts:pretensioner; air bags:frontal:sensor/control module-inactive
Problem: 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.
Risk: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
Fix: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.
Seat belts:pretensioner; air bags:frontal:sensor/control module-inactive
Problem: 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.
Risk: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
Fix: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.
Service brakes, hydraulic:pedals and linkages
Problem: 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.
Risk: If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehicle by using the brake pedal. Additionally, a loose pedal may also interfere with the accelerator pedal. Either condition may increase the risk of a crash.
Fix: GM will notify owners, and dealers will add adhesive to the brake pedal pivot nut and reinstall with an increased torque, free of charge. The recall began on March 14, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 20760.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
NHTSA defect investigations
- Desiccated Air Bag Inflator Rupture (EA21002) — opened Sep 17, 2021, still open.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
The contact owns a 2015 GMC Sierra 3500. The contact stated that the brake pedal and accelerator pedal lifted while depressed, causing the engine to rev. There were no warning lights illuminated. The dealer was contacted and made aware of the failure. The vehicle was not taken to the dealer to be…
The contact owns a 2015 GMC Sierra 3500. The contact stated that after parking in the driveway and turning off the vehicle, approximately 30 minutes later, the rear passengerâs side roof rail air bag erroneously deployed. The cause of the failure was not yet determined. The manufacturer and local…
The contact owns a 2015 GMC Sierra 3500. The contact received notification of NHTSA Campaign Number: 21V504000 (Air Bags); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The…
The contact owns a 2015 GMC Sierra 3500. The contact stated while driving approximately 70 MPH, the vehicle abruptly lost motive power and decelerated to 25 MPH. The contact stated that the message âEngine Power Reducedâ was displayed. The contact stated that the failure was intermittent, but…
The service trailer brake icon keeps appearing on my screen Iâm afraid itâs going to not work properly when towing trailers itâs constantly going on and off I believe itâs the brake control module switch but also could be in the harness just want Gm to be aware of the many blogs that I have…
Other GMC Sierra 3500 years
← 2014 Sierra 3500 · 2016 Sierra 3500 →
See all GMC Sierra 3500 problems by year, every GMC model, or the GMC VIN decoder.
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Frequently asked questions
What are the most common problems with the 2015 GMC Sierra 3500?
Owners most often report electrical system, exterior lighting, engine problems. The top one, electrical system, accounts for 6 complaints.
Was there a recall on the 2015 GMC Sierra 3500?
Yes, 7 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2015 GMC Sierra 3500 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Sierra 3500 model years, the 2015 has more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.