INTRODUCING THE FIRST EVER

2024 GMC SIERRA HD AT4X & AT4X AEV EDITION

AVAILABLE SPRING 2023

Preproduction models shown throughout. Actual production models may vary. Arriving fall 2023. Available accessories shown throughout on AT4X AEV Edition. Due to current supply-chain shortages, certain features shown have limited or late availability, or are no longer available. See the window label or a dealer regarding the features on an individual vehicle.

KEY FEATURES

AVAILABLE MAX TOWING OF

18,500 LBS ON AT4X

AT4X AEV SHOWN HAS AVAILABLE MAX TOWING OF 18,400 LBS

FACTORY-INSTALLED

1.5" SUSPENSION LIFT

MULTIMATIC™ DSSV DAMPERS

MULTIMATIC™ DSSV

DAMPERS

REAR E-LOCKING DIFFERENTIAL

REAR E-LOCKING

DIFFERENTIAL

GOODYEAR® TERRITORY

35" MT TIRES

EXCLUSIVE OBSIDIAN RUSH INTERIOR WITH

FULL-GRAIN LEATHER SEATING

EXCLUSIVE OBSIDIAN RUSH INTERIOR WITH

FULL-GRAIN LEATHER

SEATING

FIRST EVER SIERRA HD AT4X

THE PEAK OF PREMIUM OFF-ROADING

As the pioneer of premium off-roading, AT4 embodies the boundless spirit of adventure. Now, Sierra HD AT4X is taking the AT4 experience to the next level. Purpose-built for off-road action with trail-ready capability straight from the factory, Sierra HD AT4X also delivers the Professional Grade pulling power you demand from a heavy-duty pickup.

FIRST EVER SIERRA HD AT4X

THE PEAK OF PREMIUM OFF-ROADING

As the pioneer of premium off-roading, AT4 embodies the boundless spirit of adventure. Now, Sierra HD AT4X is taking the AT4 experience to the next level. Purpose-built for off-road action with trail-ready capability straight from the factory, Sierra HD AT4X also delivers the Professional Grade pulling power you demand from a heavy-duty pickup.

OFF-ROAD CAPABILITY WITHOUT COMPROMISE

Serious adventure-ready hardware meets premium on-road comfort and world-class towing power.

CAPABILITY FEATURES INCLUDE:

 AVAILABLE MAX TOWING OF

18,500 LBS

FACTORY-INSTALLED

1.5" SUSPENSION LIFT

MULTIMATIC DSSV DAMPERS

REAR E-LOCKING DIFFERENTIAL

35" GOODYEAR TERRITORY MT TIRES

HEAVY-DUTY TURBOCHARGED POWER

Sierra HD AT4X delivers world-class towing capability with an available efficient turbocharger—new to Sierra Heavy Duty. 

AVAILABLE 6.6L DURAMAX TURBO DIESEL WITH ALLISON® 10-SPEED AUTOMATIC TRANSMISSION OFFERS: 

  • 975 lb-ft of Torque and 470 hp
  • Up to 25% Increase in Low-End Torque Over the Previous Sierra Heavy Duty Model Year 

OFFERS THE MOST TRAILERING-ASSISTANCE TECHNOLOGIES IN ITS CLASS

An advanced suite of available intelligent technologies helps streamline the hitching and towing process with integrated tools that help enhance your sense of confidence and visibility.

EXPLORE IN EXCLUSIVE AT4X STYLE

Sierra HD AT4X’s exclusive Obsidian Rush interior is designed to let you tackle tough terrain in comfort and style. 

INTERIOR FEATURES INCLUDE:

FULL-GRAIN LEATHER SEATING

TECHNICAL-GRAIN LEATHER ACCENTS

RED AND WHITE DOUBLE-NEEDLE STITCHING

AUTHENTIC VANTA ASH WOOD

16-WAY POWER FRONT SEATS WITH MASSAGE FEATURE

12-SPEAKER BOSE® PREMIUM SERIES WITH CENTERPOINT® SURROUND SOUND

PREMIUM MICROSUEDE HEADLINER, PILLARS AND SUNSHADE VISORS

FIRST EVER SIERRA HD AT4X AEV EDITION

Tame the untamed in the First Ever Sierra Heavy Duty AT4X AEV Edition. Equipped by off-road recreational driving and overland adventure travel experts American Expedition Vehicles (AEV), this off-road pickup is engineered for the roughest terrain.  

AEV STAMPED-STEEL FRONT & REAR BUMPERS

AEV heavy-duty, stamped-steel, powder-coated front and rear bumpers offer accessory winch capability in the front and added protection while summiting boulders, logs and rough terrain.

Available accessory winch shown.

The AEV front bumper features heavy-duty cast integrated recovery points and available accessory winch capability while providing incredible durability and corrosion resistance.

AEV STAMPED STEEL SKID PLATES

Available accessory winch shown.

Rugged underbody protection with stamped steel skid plates helps keep vital components such as the steering gear and transfer case protected from ruts, rocks, stumps and other adversities of the trail.

EXCLUSIVE AEV EDITION DESIGN ELEMENTS

AT4X AEV Edition’s heroic style stands out with the exclusive details befitting a true overland custom build.

NEW DETAILS INCLUDE:

AEV BADGING ON THE EXTERIOR AND INTERIOR

AEV RACING-INSPIRED 18" SALTA WHEELS WITH 16-SPOKE DESIGN

BLACK ACCENTS ON THE DOOR HANDLES AND TAILGATE

AEV EMBROIDERED FRONT HEAD RESTRAINTS

ALL-WEATHER FLOOR LINERS

SPEC HIGHLIGHTS

AT4X

GROUND CLEARANCE

11.6"

APPROACH ANGLE

31.6°

BREAKOVER ANGLE

21.2°

DEPARTURE ANGLE

25.7°

AT4X AEV

GROUND CLEARANCE

11.8"

APPROACH ANGLE

29.8°

BREAKOVER ANGLE

22.6°

DEPARTURE ANGLE

25.7°

AT4X

GALLERY

STAY IN THE KNOW

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EXPLORE OTHER 2024 SIERRA HD TRIMS

Sierra Heavy Duty is technologically advanced with premium comfort and the power you need to pull your world.

2024 SIERRA HD PRO

STARTING AT $44,400

AS SHOWN $50,900

2024 SIERRA HD SLE

STARTING AT $49,200

AS SHOWN $56,396

2024 SIERRA HD SLT

STARTING AT $60,500

AS SHOWN $64,395

2024 SIERRA HD AT4

STARTING AT $69,100

AS SHOWN $69,100

2024 SIERRA HD DENALI

STARTING AT $73,200

AS SHOWN $73,695

2024 SIERRA HD DENALI ULTIMATE

STARTING AT $91,900

AS SHOWN $92,395