The redesigned, next-generation Sierra HD's exterior is more visually distinguished from the Sierra 1500. Aside from its roof, which is shared with the light-duty Sierra, all other visible elements are unique to the work-focused HD truck. The standard engine is a 401-hp, 6.6-liter V8 with a six-speed transmission. A 445-hp, 6.6-liter turbodiesel V8 engine with a 10-speed transmission is also available.
Alerts
There are 6 recalls on this vehicle. Learn More.

Reliability

We expect the 2022 Sierra 2500HD will be more reliable than the average new car. This prediction is based on data from 2020 and 2021 models. Select the used car model year to see reported issues with those similar past models.

Overall Reliability
Most Common Trouble Spots
Common Trouble Spot
Common Trouble Spot
The 2020 GMC Sierra 2500HD has been recalled 6 times by NHTSA. View Recalls
Research Years * Redesign year
Worse Better
00*
01
02
03
04
05
06
07*
08
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20*
21
Overall Reliability Verdict
NA
NA
NA
NA
POTENTIAL TROUBLE SPOTS
Engine Major
NA
NA
NA
NA
Engine Minor
NA
NA
NA
NA
Engine Cooling
NA
NA
NA
NA
Transmission Major
NA
NA
NA
NA
Transmission Minor
NA
NA
NA
NA
Drive System
NA
NA
NA
NA
Fuel System
NA
NA
NA
NA
Electric System
NA
NA
NA
NA
Climate System
NA
NA
NA
NA
Suspension
NA
NA
NA
NA
Brakes
NA
NA
NA
NA
Exhaust
NA
NA
NA
NA
Paint/Trim
NA
NA
NA
NA
Body Integrity
NA
NA
NA
NA
Body Hardware
NA
NA
NA
NA
Power Equipment
NA
NA
NA
NA
In-car Electronics
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 2020 GMC Sierra 2500HD owners. The owner comments describe problems respondents experienced with this vehicle.

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

External music device interface (e.g., smart phone, MP3 player)

"fails to connect to Sirius Satellite and won't pair with my phone. Happened 3 times but the next time I use the vehicle it works."

Anonymous, PA (2020 GMC Sierra 2500HD Denali 6.6-L V8 diesel)
Phone pairing (e.g., Bluetooth)

"seems to be connected to satellite radio issue as they occur at the same time"

Anonymous, PA (2020 GMC Sierra 2500HD Denali 6.6-L V8 diesel)
Radio

"The Sirius XM portion of the tuner often is searching for the satellite and sometimes does not work at all. The vehicle has to be shut off for several minutes to reset."

Anonymous, (2020 GMC Sierra 2500HD SLE 6.6-L V8)

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.

What Owners Say

Body control module

"Trailer lights wouldn't work had to get a resistor to make the lights work"

Anonymous, OH (2020 GMC Sierra 2500HD Denali 6.6-L V8 diesel)

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

Climate System

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

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.

Engine Minor

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

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.

Paint/Trim

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

Exhaust

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

Brakes

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

Engine Cooling

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

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.

Drive System

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

Body Integrity

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

Transmission Minor

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

Compare 2020 Models

Similar Cars
Chevrolet Silverado 1500
Chevrolet Silverado 2500HD
Ford F-150
Ford F-250
Ford F-350
GMC Sierra 1500
GMC Sierra 2500HD
Ram 1500
Ram 2500
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
TIRES
Jul 29, 2021
An ABS system that cannot control the rear wheels independently increases the risk of a crash.
Summary:
General Motors, LLC. (GM) is recalling certain 2020-2021 Chevrolet Silverado 2500 and GMC Sierra 2500 vehicles equipped with a 17" spare tire (RPO ZHQ or ZXT) and either the 20" accessory road tire (RPO REM) or the 18" accessory road tire (RPO Q2V). Operating the spare tire with other 20" or 18" tires can prevent the Anti-Lock Braking System (ABS) from engaging.
What should you do:
Dealers will provide the appropriate spare tire and apply a new spare tire information label, free of charge. Owner notification letters were mailed on October 18, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; GMC customer service at 1-800-462-8782. GM's number for this recall is N212329780.
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: 21V578000
Potential Number of Units Affected: 86
SEAT BELTS
Dec 17, 2020
If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
Summary:
General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
What should you do:
GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
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: 20V792000
Potential Number of Units Affected: 624216
AIR BAGS
Jul 30, 2020
If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
Summary:
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
What should you do:
GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
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: 20V446000
Potential Number of Units Affected: 769
LATCHES/LOCKS/LINKAGES, STRUCTURE
Jun 04, 2020
If a striker wire fractures, the hood may open unexpectedly while driving, increasing the risk of a crash.
Summary:
General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles previously recalled under 20V-142. Some of the vehicles in 20V-324 were not part of Recall 20V-142 but received defect parts during another service (typically during collision repair). The hood-latch striker wires on replacement hoods installed for Safety Recall 20V-142 may not have been heat-treated properly, possibly causing them to fracture.
What should you do:
GM will notify owners, and dealers will replace the hood assembly, free of charge. For hoods sold over the counter, dealers will contact customers with instructions for hood replacement. The recall began July 7, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202306490.
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: 20V324000
Potential Number of Units Affected: 272
LATCHES/LOCKS/LINKAGES
Mar 12, 2020
If a striker wire fractures, the hood may open unexpectedly while driving, increasing the risk of a crash.
Summary:
General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The hood-latch striker wires may not have been heat-treated properly, possibly causing them to fracture.
What should you do:
GM will notify owners, and dealers will replace the hood assembly, free of charge. The recall began April 13, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192284960.
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: 20V142000
Potential Number of Units Affected: 1909
SEAT BELTS
Nov 14, 2019
A vehicle fire could result if materials ignite inside the vehicle.
Summary:
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.
What should you do:
GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.
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: 19V814000
Potential Number of Units Affected: 556399
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