2015 GMC Sierra 3500 Recalls, Problems & Safety Rating

7 safety recalls on file

The 2015 GMC Sierra 3500 has 7 safety recalls on file with NHTSA.

Owners have filed 31 complaints with NHTSA, including 1 crash, 1 fire, 1 injury.

The most-reported problem area is Electrical System (6 reports).

7Recalls
31Owner complaints
1Crashes reported
n/aNHTSA safety rating
Is the repair still open on your Sierra 3500?

A recall covers specific vehicles. Your VIN shows whether yours still needs the free repair.

2015 GMC Sierra 3500 recalls

Side Curtain Airbag May Fail in a Crash

Recall 21V504Jul 1, 2021410,019 vehicles affected

The roof-rail curtain airbag inflator on these trucks can have its end cap separate, or its sidewall can rupture.

Curtain airbag inflator end cap can detach and fly out

Recall 20V736Nov 25, 20209,279 vehicles affected

The roof-rail curtain airbag inflator end cap on certain 2015-2016 Chevrolet Silverado and GMC Sierra pickups may separate from the inflator.

Loose Brake Pedal Can Cause Loss of Braking

Recall 18V578Aug 30, 201842,280 vehicles affected

Certain 2015-2016 Chevrolet Silverado 1500, 2500 and 3500, Tahoe Police Pursuit, and GMC Sierra 2500 and 3500 vehicles may have a brake pedal pivot nut that loosens over time.

Fuel Tank May Overfill and Leak, Creating Fire Risk

Recall 17V664Oct 19, 201735,292 vehicles affected

A low fuel level sensor in the front fuel tank of these trucks may stick, causing the rear tank to overfill the front tank.

Front Air Bags and Seatbelt Pretensioners May Not Deploy in a Crash

Recall 17V437Jul 10, 201740,683 vehicles affected

Some vehicles may not have received the complete software update from an earlier air bag recall.

Front airbags and seatbelt pretensioners may not deploy in a crash

Recall 16V651Sep 8, 20163,640,162 vehicles affected

Certain 2014 Buick, Chevrolet vehicles have a software issue in the air bag sensing and diagnostic module.

Loose brake pedal can cause loss of braking

Recall 16V069Feb 5, 2016430,771 vehicles affected

On certain 2015-2016 Chevrolet Silverado, Tahoe Police Pursuit, and GMC Sierra heavy-duty trucks, the nut holding the brake pedal pivot can loosen.

Most common 2015 GMC Sierra 3500 problems

Problem areas named in the 31 complaints owners filed with NHTSA.

Problem areaReports
Electrical System6
Exterior Lighting6
Engine4
Unknown Or Other3
Service Brakes3
Steering3
Air Bags3
Visibility/Wiper2
Vehicle Speed Control2
Fuel/Propulsion System2

What owners report

2026-08-24, Service Brakes, Hydraulic
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 diagnosed or repaired. The manufacturer was not informed of the issue. The failure mileage was approximately 37,000.
2025-08-27, Air Bags
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 passenger’s side roof rail air bag erroneously deployed. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The vehicle was not yet repaired. The contact was informed that the VIN was included in the NHTSA Campaign Number: 21V504000 (AIR BAGS). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 155,000. The VIN was not available.
2024-06-21, Air Bags
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 dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.
2024-01-25, Engine And Engine Cooling
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 “Engine Power Reduced” was displayed. The contact stated that the failure was intermittent, but always occurred while driving at high speeds. The contact had taken the vehicle to a local dealer however, the failure could not be duplicated. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 48,815,
2022-12-01, Electrical System
The service trailer brake icon keeps appearing on my screen I’m afraid it’s going to not work properly when towing trailers it’s constantly going on and off I believe it’s 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 read about with this problem The problem first appeared about two months ago

2015 GMC Sierra 3500 questions

Does the 2015 GMC Sierra 3500 have any recalls?

Yes. NHTSA lists 7 safety recalls for the 2015 GMC Sierra 3500: Side Curtain Airbag May Fail in a Crash; Curtain airbag inflator end cap can detach and fly out; Loose Brake Pedal Can Cause Loss of Braking; Fuel Tank May Overfill and Leak, Creating Fire Risk; Front Air Bags and Seatbelt Pretensioners May Not Deploy in a Crash. Recall repairs are normally free at an authorized dealer.

What are the most common problems with the 2015 GMC Sierra 3500?

Based on 31 owner complaints filed with NHTSA, the most-reported problem areas are Electrical System (6), Exterior Lighting (6), Engine (4).

How do I check if a recall on my 2015 GMC Sierra 3500 has been fixed?

Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.

Other GMC Sierra 3500 years

Other 2015 GMC models