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Available to order 2024 GMC Denali Sierra 2500 HD 4X4 

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Introducing the GMC Denali Sierra 2500HD: Stronger, Larger, and Smarter Than Ever

Meet the all-new GMC Sierra Heavy Duty, a powerhouse that redefines what it means to conquer challenges. While people might talk about moving mountains with awe, for you, it's just another part of your daily routine. Nothing catches you off guard; obstacles are merely steppingstones on your path.

Navigating through so-called hurdles is second nature to you, pushing your limits and seeking solutions with unwavering determination. You're constantly on the lookout for new summits to climb. Enter the GMC Sierra HD – the heavy-duty truck built for your spirit.

Bigger, stronger, and smarter than its predecessors, the all-new GMC Sierra Heavy Duty seamlessly blends enhanced trailering capacity with cutting-edge technologies, delivering a towing experience that sets a global standard.

This fusion of form and function is exemplified by:

  • An advanced ProGrade Trailering system, boasting an industry-leading selection of 15 available camera views. This includes an innovative transparent trailer view, allowing you to virtually see through the trailer you're towing.

  • An exclusive 15-inch diagonal head-up display, a segment-first feature, providing essential trailering data such as speed, navigation, and even an inclinometer display to gauge road grade.

  • A groundbreaking Rear Camera Mirror, found exclusively in this segment.

  • The revolutionary MultiPro tailgate, the world's first of its kind with six functions, designed to simplify loading, unloading, and accessing the bed. This innovation is available across all trim levels.

  • A commanding, larger design that maximizes cargo space and offers unprecedented comfort for both passengers and gear.

  • Unmatched Crew Cab front headroom and legroom, setting the bar for the driver and front-row occupants.

  • A groundbreaking Allison 10-speed automatic transmission, a segment-first, paired with the legendary 6.6L Duramax turbo diesel engine.

  • 4X4

Available Models:


ENGINE: 6.6L Turbo Diesal - POWER: 332KW @ 2800RPM - TORQUE: 1233NM @ 1600RPM - TOWING: 6123KG – 1139KG Payload




The redesigned interior of the Sierra HD sets an unparalleled benchmark for quietness among heavy-duty GMC pickups. This accomplishment arises from the fusion of triple door seals, inlaid doors, and meticulous enhancements across the entire truck. The outcome is nothing short of remarkable – the most serene environment ever experienced in a heavy-duty pickup. By combining opulent materials, supportive seating, and spacious storage, a new echelon of excellence has been established within heavy-duty truck interiors. An epitome of comfort, the Sierra HD boasts heated and cooled Denali-embossed leather-trimmed front bucket seats, a heated leather-wrapped steering wheel, a novel soft-touch instrument panel adorned with burnished aluminium accents, and contrasting stitching.


The entirely new instrument panel of the Sierra HD is thoughtfully designed to place controls at your fingertips, ensuring optimal visibility and accessibility. Introducing a revolutionary 15-inch-diagonal head-up display, this advanced feature provides instant access to vital trailering data – from vehicle speed to navigation insights, even featuring an inclinometer display to gauge road grade. The Sierra HD pioneers cutting-edge technologies tailored to elevate your productivity and efficiency. Ranging from state-of-the-art driver alert safety systems to the personalized driver display exclusive to Denali models, you are enveloped by a comprehensive ecosystem designed to enhance your peak performance.


Enriching functionality, the available centre console storage compartment is ingeniously fashioned to serve as a dual-purpose space – a storage haven and a filing cabinet. Within its confines, you'll find a dedicated spot for hanging files, secure lodging for a laptop, and the perfect nook for various mobile devices.


Pioneering innovation in GMC pickups, Sierra HD introduces groundbreaking projected-beam headlamps that seamlessly meld into the grille surround. Further enhancing this luminous feature is the availability of LED signature lighting, lending the Sierra HD an unmistakable visual identity. The dedication to a quieter cabin extends beyond the surface – in addition to triple door seals and sturdier windshield glass, Sierra's meticulously crafted design harmoniously reduces wind noise, cultivating an ambiance of tranquillity.

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The GMC Sierra HD boasts an interior meticulously crafted to provide you with three essential elements: enhanced comfort, reduced noise levels, and a seamless integration with your digital realm.

  • Dual-zone climate control for air conditioning

  • 15-inch diagonal colour display in the Driver Information Centre

  • Leather-wrapped steering wheel with audio and cruise control functions

  • Heated leather-wrapped steering wheel

  • Manual tilt-wheel and telescope operation for the steering column

  • Cruise control functionality

  • Electric rear-window defroster

  • Power door locks and windows

  • Color-keyed carpeting with rubberized vinyl floor mats

  • Ultrasonic front and rear park assist.

  • Power-adjustable pedals

  • Rear view camera system with dynamic grid lines

  • Remote start system

  • Remote keyless entry

  • Auto-dimming rearview mirror with outside heated power-adjustable vertical chrome-capped camper mirror

  • Bright accent sill plates

  • OPTIONAL Power sliding sunroof with express-open feature

  • Power windows with driver express up-and-down, and express down on all other windows.

  • Power rear sliding window with rear defroster

  • Interval-controlled windshield wipers

  • Single slot CD/MP3 player

  • Bluetooth connectivity for phones

  • 6-speaker audio system; Bose premium audio system with six speakers (seven speakers including subwoofer when ordered with bucket seats)

  • Heated and cooled perforated leather-appointed front bucket seats (requires front bucket seats)


The striking appearance of the All-NEW GMC Sierra HD instantly communicates its readiness for any challenge. Ample cargo space, an easy-lift tailgate, and a clever step-up feature are integral to this work-ready package.

  • Rear body-coloured bumpers with Corner step bumper design

  • Body-coloured front bumpers

  • Chromed tubular side steps with a distinctive 15 cm rectangular design.

  • Chrome door handles

  • Chrome bodyside mouldings

  • Chrome grille with unique Denali accents

  • Halogen projector-beam headlights

  • Under-rail LED cargo box lighting

  • Heated exterior towing mirrors.

  • Front intermittent wipers

  • Rear wheelhouse liners for single-wheel configuration

  • MultiPro, the world's first six-function tailgate, available across all trim levels

  • OPTIONAL Movable tie-downs for cargo box, high-mounted (4)

  • Front frame-mounted recovery hooks (black)

  • OPTIONAL Box rail caps for cargo box

  • Spare tire carrier with winch-style lock

  • OPTIONAL Spray-in bedliner

  • OPTIONAL Roll-up tonneau cover


The GMC Sierra HD is engineered for towing heavy loads under the most challenging conditions, utilizing a range of trailering technologies such as Stabilitrak, Trailer Sway Control, Diesel Exhaust Brake, and Hill Start Assist.


  • OPTIONAL Trailer wiring provisions

  • 4-wheel disc brakes with 4-wheel antilock system

  • 3.73 rear axle ratio

  • Heavy-duty automatic rear differential by Eaton

  • Tow Haul Mode

  • 18-inch wheels

  • Power steering

  • Auxiliary external transmission oil cooler

  • Aluminized stainless steel muffler and tailpipe for the exhaust system.

  • 150-amp alternator

  • Auxiliary external engine oil cooler

  • OPTIONAL Switch-activated exhaust brakes

  • OPTIONAL High idle switch

  • Fully boxed frame with hydro-formed front section

  • Integrated trailer brake controller

  • Heavy-duty maintenance-free battery with run-down protection and retained accessory power.

  • High-capacity air cleaner

  • Stabilitrak Stability Control System

  • Independent front suspension with torsion bars, featuring 51mm twin-shock absorbers and 33mm front stabilizer bar.

  • Rear multi-leaf, semi-elliptical suspension with urethane jounce bumpers


  • Duramax 6.6-liter Turbodiesel V8 engine with direct injection

  • Allison 1000 series 10-speed automatic transmission with tow-haul mode and electronic Powertrain Grade Braking


The GMC Sierra HD prioritizes safety, starting with standard daytime running lights, a tire pressure monitoring system, and a rear vision camera.

  • OPTIONAL Lane departure warning and forward collision alert (available with Driver Alert Package)

  • OPTIONAL Safety Alert Driver Seat (available with Driver Alert Package)

  • Front-seat-mounted side-impact airbags for driver and right front-passenger thorax and pelvis protection.

  • Single-stage frontal airbags for driver and front passenger

  • Exhaust brakes

  • Tire pressure monitoring system (excluding spare)

  • ABS brakes

  • OPTIONAL Front and rear head curtain side-impact airbags for all outboard seating positions

  • Locking tailgate

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*Kindly be advised that the colour and seating alternatives provided are intended for informational purposes exclusively. Iconic Euro American Imports cannot ensure the availability of vehicles in specific colours and seating configurations at any specific moment.


Jet Black, Perforated Leather-appointed front outboard seating positions.

Dark Walnut/Slate, Perforated Leather-appointed front outboard seating positions.

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