The HD Sierra and its twin the Chevrolet Silverado HD are designed for heavy towing and hauling. The 6.0-liter V8 and 6.6-liter turbodiesel, both mated to a six-speed automatic, carried over on the 2015 redesign. There is also a natural gas (CNG) version of the 6.0-liter V8. GM said that the new cabs and interiors provide increased space and comfort, with extensive storage space.
Alerts
There are 7 recalls on this vehicle. Learn More.

Reliability

We expect the 2022 Sierra 3500HD to have about average reliability when compared to other new cars. This prediction is based on GMC's brand history and data from similar HD pickups.

Overall Reliability
Most Common Trouble Spots
Common Trouble Spot
Common Trouble Spot
The 2015 GMC Sierra 3500HD has been recalled 7 times by NHTSA. View Recalls
Research Years * Redesign year
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Overall Reliability Verdict
NA
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POTENTIAL TROUBLE SPOTS
Engine Major
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Engine Minor
NA
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Engine Cooling
NA
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Transmission Major
NA
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NA
NA
NA
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NA
Transmission Minor
NA
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Drive System
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Fuel System
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Electric System
NA
NA
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Climate System
NA
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Suspension
NA
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NA
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NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Brakes
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
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NA
NA
NA
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Exhaust
NA
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NA
NA
NA
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NA
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Paint/Trim
NA
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NA
NA
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NA
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Body Integrity
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Body Hardware
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Power Equipment
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
In-car Electronics
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for over 300,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2021 vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. NA indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.

Learn more about car Reliability.

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2015 GMC Sierra 3500HD owners. The owner comments describe problems respondents experienced with this vehicle.

Paint/Trim

Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

What Owners Say

Paint (fading, chalking, cracking, or peeling)

"paint peeling off rear fender wells"

Anonymous, BC (2015 GMC Sierra 3500HD SLE 6.6-L V8 diesel)
Rust

"Rear fender wells"

Anonymous, BC (2015 GMC Sierra 3500HD SLE 6.6-L V8 diesel)

Drive System

Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.

What Owners Say

CV joint

"On a routine visit, the service department noticed the CV joint were failing. Had both sides replaced"

Anonymous, CO (2015 GMC Sierra 3500HD Denali 6.6-L V8 diesel)

Body Integrity

Squeaks, rattles, wind noises, loose or cracked seals and/or weather-stripping, air and water leaks.

What Owners Say

Squeaks or rattles

"Squeaks emanating from the dash trim. Induced by the design of the clip interface with the dash. Dealer unable to address"

Anonymous, NV (2015 GMC Sierra 3500HD Denali 6.6-L V8 diesel)

Fuel System

Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.

What Owners Say

Emission control devices (includes EGR)

"Diesel Exhaust Fluid tank heater failed. Covered under warrantee."

George K., TX (2015 GMC Sierra 3500HD Denali 6.6-L V8 diesel)

In-car Electronics

CD or DVD players, radio, speakers, GPS, communication system (e.g., OnStar), display screen freezes or goes blank, phone pairing (e.g. Bluetooth), voice control commands, steering wheel controls, portable music device interface (e.g., iPod/MP3 player), backup or other camera/sensors.

What Owners Say

Hardware replacement

"GPS antenna failed, the system could not locate the vehicle reliably."

Anonymous, TX (2015 GMC Sierra 3500HD Denali 6.6-L V8 diesel)

Engine Cooling

Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.

What Owners Say

Thermostat

"The check engine light came on. The dealer diagnosing the problem showed a or both thermostats were stuck open preventing the engine temperature to warm up too slowly. Both thermostats were replaced"

Anonymous, ME (2015 GMC Sierra 3500HD Denali 6.6-L V8 diesel)

Transmission Minor

Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.

Brakes

Antilock system (ABS), parking brake, master cylinder, calipers, rotors, pulsation or vibration, squeaking, brake failure or wear.

Body Hardware

Power or manual windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls, safety belts, sunroof, convertible top.

Engine Major

Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.

Suspension

Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

Engine Minor

Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.

Climate System

Blower (fan) motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, refrigerant leakage, electrical failure.

Power Equipment

Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, remote engine start, alarm or security system

Electric System

Alternator, starter, hybrid battery and related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure.

Exhaust

Muffler, pipes, catalytic converter, exhaust manifold, leaks.

Compare 2015 Models

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GMC Sierra 1500
GMC Sierra 2500HD
GMC Sierra 3500HD
Ram 1500
Toyota Tundra
This score shows whether the model had more or fewer problems overall than the average model of that year, calculated from the total number of problems reported by subscribers in all 17 trouble spots.
Recalls
PROVIDED BY
AIR BAGS
Jul 01, 2021
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
NHTSA CAMPAIGN ID Number: 21V504000
Potential Number of Units Affected: 410019
AIR BAGS
Nov 25, 2020
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 20V736000
Potential Number of Units Affected: 9279
SERVICE BRAKES, HYDRAULIC
Aug 30, 2018
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 18V578000
Potential Number of Units Affected: 42280
FUEL SYSTEM, GASOLINE
Oct 19, 2017
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 17V664000
Potential Number of Units Affected: 35292
AIR BAGS, SEAT BELTS
Jul 10, 2017
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 17V437000
Potential Number of Units Affected: 40683
AIR BAGS, SEAT BELTS
Sep 08, 2016
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 16V651000
Potential Number of Units Affected: 3640162
SERVICE BRAKES, HYDRAULIC
Feb 05, 2016
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.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 16V069000
Potential Number of Units Affected: 430771
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