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CAPABILITY

POWERFUL PERFORMANCE

The 2021 GMC Sierra 1500 is the peak of GMC design and capability. Its powerful engines, innovative technologies, premium features and purposeful designs give the confidence you need to conquer the terrain.

PERFORMANCE YOU CAN COUNT ON

FIND THE 2021 SIERRA 1500 ENGINE
THAT MEETS YOUR NEEDS

4.3L Gas V6

2.7L Turbo Engine

5.3L  EcoTec®3 V8

Duramax® 3.0L  Turbo-Diesel

6.2L EcoTec®3 V8

HORSEPOWER (hp @rpm)

285

310

355

277

420

TORQUE (lb.-ft. @rpm)

305

348

383

460

460

TRANSMISSIONS

6-speed automatic transmission

8-speed automatic transmission

10-speed automatic transmission available on 4WD models, 8-speed automatic transmission on 2WD models; standard
6-speed automatic transmission on Sierra work truck only

10-speed automatic transmission

10-speed automatic transmission

FUEL DELIVERY

Direct high-pressure fuel injection with Active Fuel Management

Direct high-pressure fuel injection with Active Fuel Management

Direct high-pressure fuel injection with Dynamic Fuel Management; Active Fuel Management is featured on the Sierra work truck only.

High-pressure, common-rail direct injection (36,250 psi/2,500 bar); electronic throttle valve

Direct high-pressure fuel injection with Dynamic Fuel Management

EPA ESTIMATED FUEL ECONOMY MPG (2WD)

16 city/21 hwy

20 city/23 hwy 

17 city/23 hwy (8-speed transmission),
15 city/21 hwy (6-speed transmission)

23 city/30 hwy

N/A

EPA ESTIMATED FUEL ECONOMY MPG (4WD)

15 city/20 hwy

18 city/21 hwy

16 city/22 hwy (10-speed transmission),
16 city/21 hwy (10-speed transmission AT4),
15 city/20 hwy (6-speed transmission)

22 city/26 hwy

16 city/20 hwy,
15 city/19 hwy (AT4)

ENGINE EFFICIENCIES

DYNAMIC FUEL MANAGEMENT SYSTEM

Included with the available 5.3L V8 and 6.2L V8 gas engines, the Dynamic Fuel Management system enables the engine to operate in 17 different patterns between 2 and 8 cylinders, depending on demand, to optimize power delivery and efficiency.

10-SPEED AUTOMATIC TRANSMISSION

10-speed automatic transmission features closer gear spacing that allows the engine to operate in an optimal range at all times with varying load and terrain conditions. Electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking.

Included and only available with 5.3L EcoTec3 V8 engine on 4WD models, 6.2L EcoTec3 V8 engine or Duramax 3.0L Turbo-Diesel I6 engine.

DIESEL TECHNOLOGY

Efficient, responsive and powerful — get familiar with Sierra 1500’s unparalleled diesel engine capabilities.

DURAMAX® 3.0L TURBO-DIESEL ENGINE
  • Inline-6 engine paired with a 10-speed transmission
  • Available EPA est. 30 MPG HWY w/3.0L Diesel Engine
  • Available maximum highway range of up to 660 miles
  • Best-in-class 277 HP
  • 460 lb.-ft. of torque
  • 5-year/100K Powertrain Limited Warranty
  • Ranked on the 2020 Wards 10 Best Engines & Propulsion Systems list
  • Allows for superior off-road performance
  • Equipped with integrated diesel exhaust brake
ACTIVE THERMAL MANAGEMENT
  • Helps the engine warm up quickly and maintain an optimal temperature for performance and efficiency
  • Once warmed, the system will pinpoint temperature levels at different locations on the engine to help give optimum combustion
  • Uses a three-actuator rotary valve system to distribute coolant through the engine in a targeted manner to help the engine run more efficiently
EXTRAORDINARY EFFICIENCY

The 3.0L Duramax Turbo-Diesel engine utilizes features like start/stop technology (with disable switch) and an engine block made of a lightweight cast aluminum alloy to help minimize fuel consumption.

QUIETER PERFORMANCE

The 3.0L Duramax was designed to be a ‘no-excuses’ engine option that not only offers excellent efficiency, but a much quieter and smoother driving experience thanks to its inline-six (I-6) architecture.

AVAILABLE 2-SPEED AUTOTRAC TRANSFER CASE

Sierra is the first truck in its class to offer a 2-speed AutoTrac transfer case with an active automatic 4WD setting that provides seamless shifting between two- and four-wheel drive based on road conditions.

TRACTION SELECT SYSTEM

Traction Select System adjusts Sierra’s transmission shift points, throttle mapping and StabiliTrak® to optimize performance for the situation. The available modes in the Traction Select System are:

  • Tour
  • Sport
  • Terrain (available on 4WD models with single-speed transfer case)
  • Snow (2WD models only)
  • Tow/Haul
  • Off Road

Learn more about Sierra’s Traction Select system on GMC Life.

FIRST-CLASS CAPABILITY

SIERRA 1500 AT4
  • Factory-installed 2-inch suspension lift gives AT4 its outstanding ground clearance
  • Rancho® shock absorbers helps deliver the smooth ride you want when heading off-road
  • Available Duramax® 3.0L Turbo-Diesel engine or 6.2L EcoTec®3 V8 engine
  • Available 18" Mud-Terrain Goodyear Wrangler DuraTrac® tires and 20" Mud-Terrain Goodyear Wrangler DuraTrac® Territory tire options
SIERRA 1500 DENALI
  • Sierra Denali Premium Suspension helps deliver a smooth, confident ride
  • Available Duramax® 3.0L Turbo-Diesel engine or 6.2L EcoTec®3 V8 engine
  • Segment-Exclusive Standard continuous damping Adaptive Ride Control uses sensors to monitor both the road and vehicle while accelerating, cornering, braking and trailering, responding quickly to the input from the road
  • Standard Automatic Locking Rear Differential offers improved traction on loose gravel or slippery surfaces by locking both rear wheels to deliver power where you need it

SIERRA 1500 AT4

  • Factory-installed 2-inch suspension lift gives AT4 its outstanding ground clearance
  • Rancho® shock absorbers helps deliver the smooth ride you want when heading off-road
  • Available Duramax® 3.0L Turbo-Diesel engine or 6.2L EcoTec®3 V8 engine
  • Available 18" Mud-Terrain Goodyear Wrangler DuraTrac® tires and 20" Mud-Terrain Goodyear Wrangler DuraTrac® Territory tire options

SIERRA 1500 DENALI

  • Sierra Denali Premium Suspension helps deliver a smooth, confident ride
  • Available Duramax® 3.0L Turbo-Diesel engine or 6.2L EcoTec®3 V8 engine
  • Segment-Exclusive Standard continuous damping Adaptive Ride Control uses sensors to monitor both the road and vehicle while accelerating, cornering, braking and trailering, responding quickly to the input from the road
  • Standard Automatic Locking Rear Differential offers improved traction on loose gravel or slippery surfaces by locking both rear wheels to deliver power where you need it

CARGO LIKE A PRO

STEEL CARGO BED

  • PLENTY OF VOLUME: More cargo bed volume than any competitor, from 62.9 to 89.1 cu. ft.
  • EXTREMELY DURABLE: High-strength, roll-formed steel bed gives the truck bed excellent durability
  • GREAT TRANSPORTABILITY: 12 standard total cargo tie-downs – rated up to 500 lbs. per corner
  • LUMINOUS LIGHTING: Rear and side task LED lighting
  • POWER WHERE YOU NEED IT: Available 120V electrical outlet in the bed

CARBON-FIBER COMPOSITE BED

  • STRENGTH, DURABILITY AND SCRATCH RESISTANCE: Carbon-fiber composite material provides excellent scratch, dent and corrosion resistance
  • CORROSION RESISTANT: This carbon-fiber composite bed naturally resists corrosion, helping the bed withstand weathering to maintain a premium appearance
  • REDUCED WEIGHT: CarbonProTM removes roughly 100 lbs. from the overall vehicle mass (when compared to the steel bed with a spray-in liner) — making it remarkably light
  • EXTRAORDINARY VOLUME: CarbonPro increases the already-generous cargo volume of Sierra’s steel bed by 1 cu. ft.
  • MORE FUNCTIONALITY: CarbonPro features three molded-in sections for wheels and two additional tie-downs (14 total) to ease the loading and securing of dirt bikes and ATVs

READY FOR THE LONG HAUL

INTEGRATED TRAILER BRAKE CONTROLLER 

Provides fingertip control and monitoring of your trailer brakes. The in-vehicle Trailering App allows drivers to program trailer brake level settings to specific trailer profiles. Available on Sierra, SLE and Elevation. Standard on SLT, AT4 and Denali.

AVAILABLE TRAILER TOWING MIRRORS

Sierra’s Trailer Towing Mirrors help you trailer with command and confidence:

  • Standard heated and available auto-dimming upper glass (driver and passenger)
  • Available power fold or manual extend and retract
  • Lower convex mirrors
  • LED turn signal indicators

ELECTRIC PARKING BRAKE ASSIST

When the available Hitch View is on and you back up toward the trailer, the Electronic Parking Brake will automatically set when you shift to Park, helping avoid roll and maintain hitch ball alignment.

SEE THE 2021 SIERRA 1500’S POWERFUL TOWING CAPABILITY

4.3L EcoTec3 V6

ENGINE

CAB

BED

Max GVWR (lb.)

Max GCWR (lb.)

Axle Ratio

Max Conventional Hitch (lb.)

Max Payload (lb.)

4.3L EcoTec®3 V6

Crew 2WD

Short

6,800

12,800

3.42

7,600

2,040

Crew 4WD

Short

7,000

12,800

3.42

7,400

2,010

Crew 4WD

Standard

7,000

12,800

3.42

7,400

1,970

Double 2WD

Standard

6,800

12,800

3.42

7,600

2,040

Double 4WD

Standard

7,000

12,800

3.42

7,400

2,020

Regular 2WD

Long

6,700

12,800

3.42

7,900

2,200

Regular 4WD

Long

6,800

12,800

3.42

7,700

2,080

5.3L EcoTec3 V8 with Active Fuel Management (Base Sierra trim only)

ENGINE

CAB

BED

Max GVWR (lb.)

Max GCWR (lb.)

Axle Ratio

Max Conventional Hitch (lb.)

Max Payload (lb.)

5.3L EcoTec3 V8 (Base Sierra trim only)

Crew 2WD

Short

6,900

15,000

3.42

9,700

2,060

Crew 4WD

Short

7,100

15,000

3.42

9,400

2,050

Crew 4WD

Standard

7,100

15,000

3.42

9,400

2,000

Double 2WD

Standard

6,800

15,000

3.42

9,700

1,970

Double 4WD

Standard

7,000

15,000

3.42

9,400

1,950

Regular 2WD

Long

6,800

15,000

3.42

9,900

2,180

Regular 4WD

Long

6,900

15,000

3.42

9,700

2,070

2.7L Turbo

ENGINE

CAB

BED

Max GVWR (lb.)

Max GCWR (lb.)

Axle Ratio

Max Conventional Hitch (lb.)

Max Payload (lb.)

2.7L Turbo

Crew 2WD

Short

6,800

14,500

3.42

9,100

2,060

Crew 4WD

Short

7,000

14,500

3.42

8,900

2,040

Crew 4WD

Standard

7,000

14,500

3.42

8,900

2,000

Double 2WD

Standard

6,800

14,500

3.42

9,200

2,060

Double 4WD

Standard

7,000

14,500

3.42

9,000

2,050

5.3L EcoTec3 V8 with Dynamic Fuel Management

ENGINE

CAB

BED

Max GVWR (lb.)

Max GCWR (lb.)

Axle Ratio

Max Conventional Hitch (lb.)

Max Payload (lb.)

5.3L EcoTec3 V8

Crew 2WD

Short

6,900

15,000

3.23

9,500

2,040

w/ Max Trailering Package

7,100

16,800

3.42

11,200

2,140

Crew 4WD

Short

7,100

15,000

3.23

9,200

2,030

3.42

10,900

2,080

Crew 4WD

Standard

7,100

15,000

3.23

9,100

1,980

3.42

10,800

2,080

Double 2WD

Standard

6,800

15,000

3.23

9,500

1,950

3.42

11,300

2,170

Double 4WD

Standard

7,000

15,000

3.23

9,200

1,940

3.42

11,000

2,150

6.2L EcoTec3 V8 with Dynamic Fuel Management

ENGINE

CAB

BED

Max GVWR (lb.)

Max GCWR (lb.)

Axle Ratio

Max Conventional Hitch (lb.)

Max Payload (lb.)

6.2L EcoTec3 V8

Crew 4WD

Short

7,100

15,000

3.23

8,600

1,620

w/ Max Trailering Package

7,300

17,800

3.42

11,700

2,000

Crew 4WD

Standard

7,100

15,000

3.23

9,000

1,550

w/ Max Trailering Package

7,300

17,800

3.42

11,800

1,960

Duramax 3.0L Turbo-Diesel

ENGINE

CAB

BED

Max GVWR (lb.)

Max GCWR (lb.)

Axle Ratio

Max Conventional Hitch (lb.)

Max Payload (lb.)

Duramax 3.0L Turbo-Diesel I-6

Crew 2WD

Short

7,000

15,000

3.23

9,200

1,830

Crew 4WD

Short

7,200

15,000

3.23

8,500

1,810

Crew 4WD

Standard

7,200

15,000

3.23

8,800

1,770

Double 2WD

Standard

6,900

15,000

3.23

9,300

1,760

Double 4WD

Standard

7,100

15,000

3.23

9,000

1,750

MAX TRAILERING PACKAGE

  • Automatic locking rear differential
  • Handling/Trailering Suspension Package
  • Enhanced cooling radiator
  • Revised shock tuning
  • Heavy-duty rear springs and increased RGAWR
  • 9.76" rear axle
  • 3.42 axle ratio
  • Integrated Trailer Brake Controller
  • 220-amp alternator

X31 OFF-ROAD PACKAGE

  • Off-Road Suspension with Rancho Shocks
  • Integrated Dual Exhaust 
  • Hill Descent Control
  • Skid Plates
  • Heavy-duty Air Filter
  • X31 hard badge

Available on Sierra, SLE, Elevation and SLT.

NEXT STEPS

  • Standard on Sierra.

  • Standard on SLE and Elevation.

  • Standard on SLT, AT4 and Denali. Available on SLE and Elevation.

  • Available on SLE, Elevation, SLT, AT4 and Denali.

  • Available on SLT, AT4 and Denali. 4WD only. 

  • EPA est. 23 city/30 hwy mpg (2WD).

  • Based on EPA highway estimate of Sierra 1500 2WD with available Duramax 3.0L Turbo-Diesel I-6 engine. Your range may be less.

  • Whichever comes first. See dealer for details.

  • Cargo and load capacity limited by weight and distribution.

  • App functionality and features vary with vehicle equipment and trim level. Data connection may be required. Some features require active service plan and working electrical system. Terms and limitations apply.

  • Available on SLE, Elevation and SLT models. Read the vehicle’s Owner’s Manual for important feature limitations and information.

  • Maximum Gross Vehicle Weight Rating (GVWR). When properly equipped; includes weight of vehicle, passengers, cargo and equipment.

  • These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner's Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver's doorjamb.

  • 7,700-lb rating requires a properly equipped 2WD Canyon Elevation Crew Cab short bed model with available Duramax 2.8L I4 Diesel engine and Trailering Package (late availability). Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges.

  • Requires 4WD Double Cab with available 6.2L V8 and Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • SLE models only.

  • 7,550-lb rating requires a properly equipped 4WD Canyon Denali model with available Duramax 2.8L I4 Diesel engine (late availability). Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options oraccessories may reduce the amount you can tow.

  • Requires 2WD Denali Short Box model with 5.3L V-8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires properly equipped 3500 Crew Cab DRW Long Box 4WD model with available 6.6L Duramax Turbo Diesel engine and fifth wheel or gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Passenger's 9,600-lb rating requires a 2500 or 3500 Regular wheelbase model with available 6.0L V8 engine and trailering equipment package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cargo’s 10,000-lb rating requires  the available 6.0L V8 engine and trailering equipment package.  Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual.  The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cutaway’s 8,940-lb rating requires a 4500 Series 159" Wheelbase model with available 6.0L V8 engine. These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Gross Combination Weight Rating (GCWR). When properly equipped; includes weight of vehicle and trailer combination, including the weight of driver, passengers, fuel, optional equipment and cargo in the vehicle and trailer.

  • Canyon’s 7000-lb rating requires available trailering package and 3.6L V-6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Sierra's 12,500-lb rating requires Sierra Double Cab or Crew Cab Short box 2wd with 6.2L EcoTec3 V8 engine and NHT Max Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Trailer weight ratings are calculated assuming properly equipped vehicle, plus driver and one passenger. The weight of other optional equipment, passengers and cargo will reduce the trailer weight your vehicle can tow. See dealer for details.

  • Sierra Denali's 9,300-lb rating requires 2wd. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Passenger's 10,000-lb rating requires 2500 Wheel Base with 6.0L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cargo's 10,000-lb rating requires 6.0L V8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Gross Combination Weight Rating (GCWR). When properly equipped, includes weight of vehicle, passengers, cargo and equipment.

  • Canyon’s 7700-lb rating requires 2WD Crew Cab model with available Duramax 2.8L I-4 Diesel engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires 2WD Crew Cab DRW equipped with 6.6L Duramax Diesel and fifth-wheel or gooseneck hitch. Trailer weight ratings are calculated assuming properly equipped vehicle, plus driver and one passenger. The weight of other optional equipment, passengers and cargo will reduce the trailer weight your vehicle can tow. See dealer for details.

  • Starting at price for base Sierra HD. The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges.

  • Requires properly equipped 3500 Regular Cab DRW Long Box 2WD model with available 6.6L Duramax Turbo Diesel engine and gooseneck hitch. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges. Bed/Roof-Mounted Bicycle Carriers shown. Requires crossbars or Thule Rack Solution. Non-GM warranty. Warranty by Thule®. See dealer for more information.

  • These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

  • Available. Requires 2.0L Turbocharged gas engine.

  • Terrain's 3,500-lb rating requires available 2.0L Turbocharged gas engine and available trailering equipment. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires available 3.6L V6 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Yukon’s 8,500-lb rating requires short wheelbase 2wd with 5.3L EcoTec3 V8 engine and HD Trailering Package. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Requires 2WD Denali Short Box model with 5.3L V-8 engine. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Savana Cutaway’s 9,006-lb rating requires a 4500 Series 159" Wheelbase model with available 6.0L V8 engine. These maximum payload ratings are intended for comparison purposes only. Before you buy a vehicle or use it to haul people or cargo, carefully review the vehicle loading section of the Owner’s Manual and check the carrying capacity of your specific vehicle on the label on the inside of the driver’s door jamb.

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