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2020 GMC Sierra

GasDiesel
Standard Pickup Trucks 4WD
26 EPA-rated configurations
Data refreshed 2026-09-11
F
Safety Signal
35 / 100 from the NHTSA recall record
Recalls3 critical16
Complaintsowner reports to NHTSA592
Crash ratingNHTSA overall5★
Fuel economybest combined, EPA26 mpg
20262025202420232022202120202019201820172016

The 2020 GMC Sierra is sold in the U.S. as a gas and diesel pickup truck with 26 EPA-rated configurations. The most efficient version, the Sierra 2WD, is EPA-rated at 26 mpg combined. NHTSA lists 16 recall campaigns for this model year, 3 rated critical, which gives it a Safety Signal grade of F. Owners have filed 592 complaints, most often about the engine. NHTSA crash-tested it at 5 stars overall.

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
Sierra 2WDGasRWD2.7L 4-cyl turbo202321$2,950
Sierra 2WDGasRWD2.7L 4-cyl turbo192220$3,100
Sierra 2WDGasRWD5.3L 8-cyl172420$3,100
Sierra 4WDGas4WD2.7L 4-cyl turbo192220$3,100
Sierra 4WDGas4WD2.7L 4-cyl turbo192220$3,100
Sierra 2WDGasRWD5.3L 8-cyl172319$3,300
Sierra 4WDGas4WD5.3L 8-cyl162219$3,300
Sierra 4WDGas4WD5.3L 8-cyl162218$3,450
Sierra 4WD AT4Gas4WD5.3L 8-cyl162118$3,450
Sierra 4WD AT4Gas4WD5.3L 8-cyl162118$3,450
Sierra 2WDGasRWD4.3L 6-cyl162117$3,650
Sierra 2WDGasRWD5.3L 8-cyl152117$3,650
Sierra 4WDGas4WD6.2L 8-cyl152017$4,550
Sierra 4WDGas4WD5.3L 8-cyl152017$3,650
Sierra 4WDGas4WD4.3L 6-cyl152017$3,650
Sierra 4WD AT4Gas4WD6.2L 8-cyl151917$4,550
Sierra Cab Chassis 2WDGasRWD4.3L 6-cyl151917$3,650
Sierra 2WDGasRWD5.3L 8-cyl151916$3,900
Sierra 4WDGas4WD5.3L 8-cyl141916$3,900
Sierra 4WD AT4Gas4WD5.3L 8-cyl141816$3,900
Sierra Cab Chassis 2WDGasRWD5.3L 8-cyl141815$4,150
Sierra Cab Chassis 4WDGas4WD4.3L 6-cyl141615$4,150
Sierra Cab Chassis 4WDGas4WD5.3L 8-cyl141715$4,150
Sierra 2WDDieselRWD3.0L 6-cyl turbo233026$3,450
Sierra 4WDDiesel4WD3.0L 6-cyl turbo222624$3,750
Sierra 4WD AT4Diesel4WD3.0L 6-cyl turbo222624$3,750

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 41831, 41827, 41892, 41850, 41857, 41826, 41848, 41846, 41847, 41849.

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Recalls (16)

Source: NHTSA recall database
○minor

Power Train

N252516560
1,055 vehicles
ProblemGeneral Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.RiskRear wheel lock up increases the risk of a crash.FixDealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.
NHTSA campaign 26V083000reported Feb 12, 2026General Motors, LLC
○minor

Power Train

N242454440
463,295 vehicles
ProblemGeneral Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.RiskRear wheel lock-up can increase the risk of a crash.FixDealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020.
NHTSA campaign 24V797000reported Oct 24, 2024General Motors, LLC
▲high

Latches/Locks/Linkages

N232426400
570,434 vehicles
ProblemGeneral Motors, LLC (GM) is recalling certain 2020-2024 Chevrolet Silverado 2500, 3500, GMC Sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching while the vehicle is in park.RiskAn unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.FixOwners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed May 17, 2024. 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 N232426400.
NHTSA campaign 24V060000reported Feb 1, 2024General Motors, LLC
▲high

Tires

N212346510
626 vehicles
ProblemGeneral Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.RiskAn ABS system that does not function properly can increase the risk of a crash.FixDealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's num
NHTSA campaign 21V985000reported Dec 16, 2021General Motors, LLC
▲high

Tires

N212329780
86 vehicles
ProblemGeneral 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.RiskAn ABS system that cannot control the rear wheels independently increases the risk of a crash.FixDealers 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.
NHTSA campaign 21V578000reported Jul 29, 2021General Motors, LLC
▲high

Tires

N212329050
33,838 vehicles
ProblemGeneral Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.RiskOver cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.FixGM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
NHTSA campaign 21V115000reported Feb 25, 2021General Motors, LLC
▲high

Seat Belts

N202314670
624,216 vehicles
ProblemGeneral 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.RiskIf 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.FixGM 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.
NHTSA campaign 20V792000reported Dec 17, 2020General Motors, LLC
▲high

Tires

N202319030
7,516 vehicles
ProblemGeneral Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.RiskOvercured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.FixGM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.
NHTSA campaign 20V684000reported Nov 5, 2020General Motors LLC
▲high

Power Train

N202314870
42 vehicles
ProblemGeneral Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.RiskIf the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.FixGM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 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 N202314870.
NHTSA campaign 20V650000reported Oct 22, 2020General Motors LLC
▲high

Air Bags

N202305380
769 vehicles
ProblemGeneral 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.RiskIf the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.FixGM 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.
NHTSA campaign 20V446000reported Jul 30, 2020General Motors LLC
▲high

Structure

N202306490
272 vehicles
ProblemGeneral 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.RiskIf a striker wire fractures, the hood may open unexpectedly while driving, increasing the risk of a crash.FixGM 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.
NHTSA campaign 20V324000reported Jun 4, 2020General Motors LLC
▲high

Latches/Locks/Linkages

N192284960
1,909 vehicles
ProblemGeneral 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.RiskIf a striker wire fractures, the hood may open unexpectedly while driving, increasing the risk of a crash.FixGM 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.
NHTSA campaign 20V142000reported Mar 12, 2020General Motors LLC
▲high

Service Brakes, Hydraulic

N202294420
20,352 vehicles
ProblemGeneral Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.RiskBroken caliper bolts can reduce brake performance or interfere with wheel rotation and increase the risk of a crash.FixGM will notify owners, and dealers will replace the brake caliper bolts, free of charge. The recall began March 23, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N202294420.
NHTSA campaign 20V116000reported Feb 27, 2020General Motors LLC
!critical

Electrical System

N192273510
350,371 vehicles
ProblemGeneral Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.RiskAn intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.FixGM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners m
NHTSA campaign 19V888000reported Dec 12, 2019General Motors LLC
!critical

Fuel System, Gasoline

N192283991
502 vehicles
ProblemGeneral Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.RiskOver-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.FixGM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.
NHTSA campaign 19V837000reported Nov 21, 2019General Motors LLC
!critical

Seat Belts

N192270600
556,399 vehicles
ProblemGeneral 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.RiskA vehicle fire could result if materials ignite inside the vehicle.FixGM 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.
NHTSA campaign 19V814000reported Nov 14, 2019General Motors LLC

NHTSA defect investigations

Engine — Loss of motive power due to engine failure open

The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019–2024 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2021-2024MY Chevrolet Suburban and Tahoe, GMC Yukon/Yukon XL, and Cadillac Escalade/Escalade ESV vehicles. The subject engine failures were investigated as part of a Preliminary Evaluation (PE25001).  GM determined that these engine failures were due to multiple supplier manufacturing and quality issues. GM issued recall 25V-274 to address the supp

Opened Oct 23, 2025 · action EA25007

Engine — Loss of motive power due to engine failure closed

On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GM’s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures resulting in knocking and growling noises from the engine’s bottom end and in some cases more severe consequences such as broken connecting rods leading to engine damage, or engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. On April 24, 2025, GM issued recall 25V-274 to address the concern with L8

Opened Jan 16, 2025 · closed Oct 23, 2025 · action PE25001

Air Bags:Srs Malfunction Warning Lamp/Light — Air Bag Malfunction closed

On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models), XT4 and MY 2021 Escalade, Suburban, Tahoe, Yukon SUVs.Technical Service Bulletin (TSB) 21-NA-005, issued in March 2021, addresses air bag MIL illumination with diagnostic trouble codes (DTCs) B0001-1B or B0012-0D. It cites rust particles in the connection terminal interface of the driver air bag

Opened Apr 9, 2021 · closed Aug 24, 2023 · action PE21010

Owner complaints

Source: NHTSA complaint database
592complaints filed

17 involved a crash · 10 a fire · 18 injuries · 0 deaths reported

Filed per year: 2019: 3 · 2020: 52 · 2021: 49 · 2022: 39 · 2023: 36 · 2024: 63 · 2025: 233 · 2026: 117

Most-cited components

Engine248
Power Train134
Electrical System101
Service Brakes70
Unspecified65
Steering43

What owners describe

“The contact owns a 2020 GMC Sierra 1500 Denali. The contact stated that while parking the vehicle, there was an abnormal grinding sound coming from the engine. There was no warning light illuminated. The local dealer was contacted about the failure; however, the vehicle was not diagnosed or repaired. The manufacturer w…”Jun 16, 2026 · Engine · NHTSA owner report
“The contact owns a 2020 GMC Sierra Denali. The contact stated that while stopped at a traffic light with the brake pedal depressed, the vehicle shut off unexpectedly. There was no warning light illuminated. The contact made several attempts to restart the vehicle; however, the vehicle failed to restart. Due to the fail…”Nov 18, 2025 · Engine And Engine Cooling · NHTSA owner report
“The contact owns a 2020 GMC Sierra 2500. The contact stated while driving approximately 65 MPH, the vehicle lost motive power. The contact stated that he had not depressed the brake pedal. The contact was towing a 20-foot flatbed trailer with a load of lumber of approximately 4,000 lbs. in weight. The contact stated th…”Nov 20, 2024 · Power Train · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP
ConfigurationOverallFrontalSideRolloverRollover risk
PU/EC 2WD★★★★★★★★★☆★★★★★★★★★☆19%
PU/EC 4WD★★★★★★★★★☆★★★★★★★★★☆20%
PU/RC 2WD★★★★★★★★★☆★★★★★★★★★☆19%
PU/RC 4WD★★★★★★★★★☆★★★★★★★★★☆20%
PU/CC 2WD★★★★☆★★★★☆★★★★★★★★★☆19%
PU/CC 4WD★★★★☆★★★★☆★★★★★★★★★☆20%

NHTSA New Car Assessment Program.

Compare the 2020 Sierra with

2020 Ford F-150 →2020 Chevrolet Silverado →2020 Ram 1500 →2020 Toyota Tacoma →

Other Sierra model years

F

2026 GMC Sierra

6 recalls · 120 complaints

D

2025 GMC Sierra

4 recalls · 161 complaints

F

2024 GMC Sierra

8 recalls · 501 complaints

C

2023 GMC Sierra

4 recalls · 517 complaints

F

2022 GMC Sierra

8 recalls · 646 complaints

F

2021 GMC Sierra

10 recalls · 624 complaints

F

2019 GMC Sierra

17 recalls · 705 complaints

F

2018 GMC Sierra

12 recalls · 366 complaints

F

2017 GMC Sierra

10 recalls · 477 complaints

F

2016 GMC Sierra

12 recalls · 454 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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