2023 SIERRA
HD AT4

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2023 SIERRA
HD AT4

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UP TO

15 AVAILABLE CAMERA VIEWS


WORLD'S FIRST SIX-FUNCTION

MULTIPRO™️ TAILGATE



FIRST HD IN ITS CLASS WITH AVAILABLE

ALLISON®† 10-SPEED TRANSMISSION



FIRST HD IN ITS CLASS WITH AVAILABLE

HEAD-UP DISPLAY & REAR CAMERA MIRROR



BEST-IN-CLASS

HD CARGO BED VOLUME



BEST-IN-CLASS

MORE CREW CAB FRONT HEAD & LEG ROOM THAN ANY COMPETITOR  



INDUSTRY-FIRST AVAILABLE 

TRANSPARENT TRAILER VIEW

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STARTING AT:

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AVAILABLE MAX TOWING UP TO

9584 KG (21,130 LB.)


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AVAILABLE MAX PAYLOAD UP TO

1903 KG (4196 LB.)


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MAX TORQUE UP TO

910 LB.-FT.

TOTAL CREDITS


FEATURE HIGHLIGHTS

OFF-ROAD WITHOUT COMPROMISE

Built to power you and your trailer off-road, the Sierra HD AT4 offers towing up to 9584 KG (21,130 LB.)

U.S. MODEL SHOWN.

SOME FEATURES SHOWN MAY HAVE LIMITED, LATE OR NO AVAILABILITY.
SEE DEALER FOR FEATURE AVAILABILITY. U.S. MODEL SHOWN.

POWERFUL INNOVATION

The available HD Surround Vision system provides up to 15 available camera views and available multicolour 15" diagonal Head-Up Display with Off-Road Inclinometer helps drivers stay connected and in command.

DISTINCTIVE BOLD EXTERIOR

Sierra HD AT4’s adventurous exterior appearance comes complete with premium black chrome finishes, modern red details, best-in-class heavy-duty Cargo Bed Volume and a heap of truck bed features including 12 cargo tie-downs rated at 227 KG (500 LB.) per corner and a spray-on bedliner with AT4 logo.

U.S. MODEL SHOWN.

SOME FEATURES SHOWN MAY HAVE LIMITED, LATE OR NO AVAILABILITY.
SEE DEALER FOR FEATURE AVAILABILITY. U.S. MODEL SHOWN.

EXCLUSIVE ATHLETIC INTERIOR

The comfortable, expansive cabin features a unique Jet Black athletic interior with Kalahari accents that gives the Sierra HD AT4 durability with a premium feel.

AT4 CAPABILITY HIGHLIGHTS

 OFF-ROAD SUSPENSION WITH RANCHO® SHOCKS AND SKID PLATES  OFF-ROAD SUSPENSION WITH RANCHO® SHOCKS AND SKID PLATES
OFF-ROAD SUSPENSION WITH RANCHO® SHOCKS AND SKID PLATES

OFF-ROAD SUSPENSION WITH RANCHO®† SHOCKS AND SKID PLATES

AT4’s Twin-Tube Rancho®† shocks provide dampening when going off road, skid plates provide added protection for underbody components and Eaton®† locking rear differential helps give you traction to handle rugged terrain.

OFF-ROAD SUSPENSION WITH RANCHO® SHOCKS AND SKID PLATES OFF-ROAD SUSPENSION WITH RANCHO® SHOCKS AND SKID PLATES
OFF-ROAD SUSPENSION WITH RANCHO® SHOCKS AND SKID PLATES

OFF-ROAD SUSPENSION WITH RANCHO®† SHOCKS AND SKID PLATES

AT4’s Twin-Tube Rancho®† shocks provide dampening when going off road, skid plates provide added protection for underbody components and Eaton®† locking rear differential helps give you traction to handle rugged terrain.

ADVANCED ENGINES ADVANCED ENGINES
ADVANCED ENGINES

ADVANCED ENGINES 

  • Standard 6.6L V8 Gas Engine with 6-Speed Automatic Transmission
    • 401 hp and 464 lb.-ft. of torque
  • Available 6.6L Duramax® Turbo-Diesel V8 Engine with Allison®† 10-Speed Automatic Transmission
    • 445 hp and 910 lb.-ft. of torque
    • Large variable-speed cooling fan and dual path air induction system
    • Factory-installed diesel after-run function
    • Intelligent diesel exhaust brake system
ADVANCED ENGINES ADVANCED ENGINES
ADVANCED ENGINES

ADVANCED ENGINES

  • Standard 6.6L V8 Gas Engine with 6-Speed Automatic Transmission
    • 401 hp and 464 lb.-ft. of torque
  • Available 6.6L Duramax® Turbo-Diesel V8 Engine with Allison®† 10-Speed Automatic Transmission
    • 445 hp and 910 lb.-ft. of torque
    • Large variable-speed cooling fan and dual path air induction system
    • Factory-installed diesel after-run function
    • Intelligent diesel exhaust brake system
HIGH-STRENGTH CHASSIS AND SUSPENSION HIGH-STRENGTH CHASSIS AND SUSPENSION
HIGH-STRENGTH CHASSIS AND SUSPENSION

HIGH-STRENGTH CHASSIS AND SUSPENSION

The strong chassis and suspension are built upon a fully boxed, ladder-type frame built from high-strength steel using front hydroformed rails with clamshell design. The powerful frame and optimized body structure works in conjunction with large driveline components that feature high-strength axles and ring gears to bring immediate torque to ground for power while towing and off-roading.

HIGH-STRENGTH CHASSIS AND SUSPENSION HIGH-STRENGTH CHASSIS AND SUSPENSION
HIGH-STRENGTH CHASSIS AND SUSPENSION

HIGH-STRENGTH CHASSIS AND SUSPENSION

The strong chassis and suspension are built upon a fully boxed, ladder-type frame built from high-strength steel using front hydroformed rails with clamshell design. The powerful frame and optimized body structure works in conjunction with large driveline components that feature high-strength axles and ring gears to bring immediate torque to ground for power while towing and off-roading.

NEXT-LEVEL GROUND CLEARANCE NEXT-LEVEL GROUND CLEARANCE
NEXT-LEVEL GROUND CLEARANCE

NEXT-LEVEL GROUND CLEARANCE

To assist in clearing rugged terrain, available Sierra HD AT4 offers over 10 inches of ground clearance along with a maximum approach angle of nearly 27 degrees on select models.

NEXT-LEVEL GROUND CLEARANCE NEXT-LEVEL GROUND CLEARANCE
NEXT-LEVEL GROUND CLEARANCE

NEXT-LEVEL GROUND CLEARANCE

To assist in clearing rugged terrain, available Sierra HD AT4 offers over 10 inches of ground clearance along with a maximum approach angle of nearly 27 degrees on select models.

MADE FOR OFF-ROAD MADE FOR OFF-ROAD
MADE FOR OFF-ROAD

U.S. MODEL SHOWN

MADE FOR OFF-ROAD

  • First HD in its class to offer a 2-speed AutoTracTM transfer case with an active automatic 4WD drive setting, which provides seamless shifting between two- and four-wheel drive based on road conditions
  • Hill Descent Control
  • Skid plates provide added underbody protection
  • Equipped with Off-Road Mode
  • Standard 18" machined aluminum wheels with Dark Grey metallic accents (as shown), with standard All Terrain blackwall tires and available mud terrain tires (2500 models only)
  • Available 20" machined aluminum wheels with high-gloss black accents, with All Terrain black wall tires
MADE FOR OFF-ROAD MADE FOR OFF-ROAD
MADE FOR OFF-ROAD

MADE FOR OFF-ROAD

  • First HD in its class to offer a 2-speed AutoTracTM transfer case with an active automatic 4WD drive setting, which provides seamless shifting between two- and four-wheel drive based on road conditions
  • Hill Descent Control
  • Skid plates provide added underbody protection
  • Equipped with Off-Road Mode
  • Standard 18" machined aluminum wheels with Dark Grey metallic accents (as shown), with standard All Terrain blackwall tires and available mud terrain tires (2500 models only)
  • Available 20" machined aluminum wheels with high-gloss black accents, with All Terrain black wall tires
AVAILABLE AT4 HIGH CLEARANCE STEP AVAILABLE AT4 HIGH CLEARANCE STEP
AVAILABLE AT4 HIGH CLEARANCE STEP

AVAILABLE AT4 HIGH CLEARANCE STEP

The sturdy AT4 high clearance step is designed to help you and passengers get in and out of your vehicle. Textured surface helps provide increased traction and accessibility, even in wet and muddy conditions. Made to withstand harsh elements and environments.

AVAILABLE AT4 HIGH CLEARANCE STEP AVAILABLE AT4 HIGH CLEARANCE STEP
AVAILABLE AT4 HIGH CLEARANCE STEP

AVAILABLE AT4 HIGH CLEARANCE STEP

The sturdy AT4 high clearance step is designed to help you and passengers get in and out of your vehicle. Textured surface helps provide increased traction and accessibility, even in wet and muddy conditions. Made to withstand harsh elements and environments.

2500 VS 3500

2500 HD AT4

  • Available maximum conventional trailering capacity of up to 8391 KG (18,500 LB.)
  • Available maximum fifth wheel/gooseneck rating of up to 8391 KG (18,500 LB.)
  • Maximum payload of up to 1637 KG (3608 LB.)
BUILD & PRICE
ACCESSORIES

3500 HD AT4

  • Available maximum conventional trailering capacity of up to 9072 KG (20,000 LB.)
  • Available maximum fifth wheel/gooseneck rating of up to 9584 KG (21,130 LB.)
  • Maximum payload of 1903 KG (4196 LB.)
BUILD & PRICE
ACCESSORIES

SPEC HIGHLIGHTS

2500 HD AT4

Sierra 2500 HD AT4 truck comes in a 4WD Crew Cab with a 6' 9" standard bed or available 8' long bed.

MAX GCWR

12,474 KG (27,500 LB.)

MAX GVWR

5239 KG (11,550 LB.)

WHEEL BASE

4036 mm – 4369 mm
(158.9 in. – 172 in.)

GROUND CLEARANCE

256.5 mm (10.1 in.)

FRONT/REAR TREAD WIDTH

1730/1735 mm
(68.1/68.3 in.)

CARGO VOLUME

1971 L – 2364 L
(69.6 cu. ft. – 83.5 cu. ft.)

3500 HD AT4

The Sierra 3500 HD AT4 truck comes in a 4WD Crew Cab with a 6' 9" standard bed or available 8' long bed. SRW only.

MAX GCWR

13,472 KG (29,700 LB.)

MAX GVWR

6350 KG (12,250 LB.)

WHEEL BASE

4036 – 4369 mm
(158.9 – 172 in.)

GROUND CLEARANCE

284 mm (11.2 in.)

FRONT/REAR TREAD WIDTH

1730/1735 mm
(68.1/68.3 in.)

MAX. CARGO VOLUME

1971 L – 2364 L
(69.6 cu. ft. – 83.5 cu. ft.)

GALLERY

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