2020 GMC SIERRA HD

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ENGINEERED TO CONQUER

The Sierra Heavy Duty pickup truck delivers towing capacity in excess of 13,608 kg (30,000 lb.)†. It's built strong so you can tow strong with a larger drive shaft and rear axle that increases durability and strength. A bigger grille and engine fan improve engine cooling. Improved brakes and steering offer superior control.

DENALI

DENALI

AT4

AT4

SLT

SLT

DELIVERING
TOWING CAPACITY
IN EXCESS OF 13,608 KG
(30,000 LB.)†

FIRST-EVER AVAILABLE
10-SPEED ALLISON®
TRANSMISSION

AVAILABLE CLASS-LEADING†
15 CAMERA
VIEWS

WORLD'S FIRST AVAILABLE
MULTIPRO™ TAILGATE

PULL YOUR WORLD

The new trailering app offers a variety of unique features to help improve your trailering experience. The app is integrated with and accessible through Sierra Denali's available GMC Infotainment System,4 with features including:


FIRST-EVER AVAILABLE 10-SPEED ALLISON® TRANSMISSION

he available 6.6L Duramax® Turbo Diesel V8, which produces 445 horsepower and 910 lb.-ft. of torque, is paired with the all-new Allison® 10-speed automatic transmission - the first of its kind in the heavy-duty pickup segment. The all-new 10-speed transmission with closer gear spacing allows the engine to operate in an optimal range at all times with varying load and terrain conditions. This, combined with fortified components used throughout Sierra Heavy Duty's driveline, provides maximum torque to the wheels at all times.

 

PROGRADE™ TRAILERING SYSTEM

An available system of intelligent technologies improves the trailering experience by adding functionality and convenience. An In-Vehicle Trailering App†, smart trailer integration and up to 15 unique class-leading, high-definition camera views are available to help improve the hitching and towing experience.

PROGRADE™ TRAILERING SYSTEM

An available system of intelligent technologies improves the trailering experience by adding functionality and convenience. An In-Vehicle Trailering App†, smart trailer integration and up to 15 unique class-leading, high-definition camera views are available to help improve the hitching and towing experience.

AVAILABLE SMART TRAILER INTEGRATION

Innovative technology in partnership with ASA Electronics' iN-Command® Control System allows you to easily control and monitor your trailer from inside the truck's cabin. Before you arrive at your destination, you can adjust the trailer's interior temperature, turn on the water heater and generator and check water and gas tank levels.

INDUSTRY-FIRST TRANSPARENT TRAILER VIEW†

This available feature helps you see directly behind the trailer for improved visibility.

AVAILABLE BED VIEW

Let's you see inside the truck bed to help with fifth-wheel hitching, and to check on cargo while driving.

AVAILABLE REAR SIDE VIEW

This view shows the side of your truck, and if trailering, the front of the trailer. While towing with a conventional hitch trailer, rear facing side view cameras with available articulation functionality will automatically adjust the camera view in the direction the trailer is moving to provide maximum visibility.

MULTIPRO™ TAILGATE

The world's first six-function MultiProTM Tailgate, available on Sierra Heavy Duty, improves cargo-box accessibility and functionality by adapting to your needs with six different functions - making loading and unloading quicker and easier.

AVAILABLE 15" HEAD-UP DISPLAY

The first Heavy Duty pickup in its class† to offer a multicolor 15" diagonal Head-Up Display helps keep your eyes on the road by conveniently projecting key information directly onto the windshield such as speed, active safety information, available Navigation† and inclinometer that measures grade.

Building on the bold foundations of the Sierra Heavy Duty pickup truck, AT4 delivers rugged design and off-road capability, giving you the power to go beyond the pavement.

Key Features:

  • Off-road suspension with Rancho®† shocks and skid plates
  • Available 20" Goodyear®† Wrangler all-terrain tires
  • Traction Select System with available Off-Road mode
  • Distinct black chrome exterior accents
  • Athletic Jet Black interior with Kalahari accents
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