2015 GMC Sierra 3500 Problems, Recalls & Reliability
Verdict
AvoidComplaint Index
75/100
#6 most-complained of 21 Sierra 3500 years
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
The 2015 GMC Sierra 3500 has 31 owner complaints and 7 safety recalls on file with NHTSA. Its Complaint Index is 75 out of 100 — #6 highest of 21 Sierra 3500 model years (verdict: Avoid). The most reported problem area is electrical system (12 complaints, 39% of the total). Complaints report 1 crash, 1 fire, and 1 injury.
- Complaints
- 31
- Recalls
- 7
- Crashes / fires
- 1 / 1
- Injuries / deaths
- 1 / 0
- NHTSA overall rating
- Not rated
- EPA combined MPG
- —
Top 2015 GMC Sierra 3500 problems
NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.
- Electrical System12 (39%)
- Engine7 (23%)
- Brakes4 (13%)
- Airbags3 (10%)
- Other3 (10%)
- Steering3 (10%)
- Fuel System2 (6%)
- Suspension, Wheels & Tires2 (6%)
- Visibility & Wipers2 (6%)
- Seat Belts1 (3%)
2015 GMC Sierra 3500 recalls
7 NHTSA recall campaigns list this model year.
- NHTSA 21V504000Jul 1, 2021Airbags410,019 vehicles
Air bags:side/window:curtain:inflator
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.
Remedy: 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.
- NHTSA 20V736000Nov 25, 2020Airbags9,279 vehicles
Air bags:side/window:curtain:inflator
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.
Remedy: 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.
- NHTSA 18V578000Aug 30, 2018Brakes42,280 vehicles
Service brakes, hydraulic:pedals and linkages
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.
Remedy: 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.
2015 compared with other Sierra 3500 years
Frequently asked questions
- Is the 2015 GMC Sierra 3500 a reliable year?
- Judged by NHTSA owner complaints and recalls, the 2015 GMC Sierra 3500 ranks #6 of 21 among Sierra 3500 model years (Complaint Index 75/100, verdict: Avoid). It has 31 complaints and 7 recalls on file. This reflects reported safety-related problems, not an overall reliability rating.
- What are the most common problems with the 2015 GMC Sierra 3500?
- The most reported problem areas are electrical system (12 complaints), engine (7 complaints), and brakes (4 complaints). The median mileage at the time of failure in complaints that report it is 38,500 miles.
- Does the 2015 GMC Sierra 3500 have any recalls?
- Yes — NHTSA lists 7 recall campaigns for the 2015 GMC Sierra 3500, most recently reported 2021, covering airbags, brakes, fuel system, and seat belts.