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  • Writer's pictureCory Fourniquet

2024 GMC Sierra 2500 HD Denali Ultimate at the Chicago Auto Show

Say hello to the Ultimate in General Motors’ big, powerful, and luxurious pickups with this new 2024 GMC Sierra 2500 HD Denali Ultimate.

For the first time on the HD line of pickups, GMC is offering Denali Ultimate which takes everything we have come to know and love about the luxurious Denali line and adds just a bit more luxury and flair. For the 1500 line of Sierra pickups, the Denali Ultimate adds that awesome “Vader Chrome Grille” with blacked-out GMC badging along with interior upgrades like heated, ventilated, and massaging front seats as well as a 12-speaker Bose Premium Series with Centerpoint Surround Sound audio system.

This 2500 HD is really about power, and this model had the 6.6L Duramax Turbodiesel V8 under the hood which makes 975 lb-ft of torque. 25% more low-end torque versus the 2023 model, which is the power you really need when towing heavy loads.

Inside, this Denali Ultimate is the nicest GMC you can get thanks to all the full-grain leather wrapping over the seats and door panels. Real wood, microsuede headliner, and premium audio add to the experience of luxury. The front seats are heated, ventilated, and massaging. The rear outboard seats are heated and feature hidden setback storage.

Technology is up to date with a segment-leading 13.4-inch color touchscreen, digital gauge cluster, huge 15-inch color head-up display, and wireless Apple CarPlay and Android Auto. If you cannot find something to like in this Denali Ultimate, you aren’t looking or you are biased and need to get over it. This really is a world-class interior and overall luxurious pickup from GMC.

Standout Features of the 2024 Sierra HD:

  • 6.6L Duramax Turbo-Diesel V-8

  • 10-speed Allison transmission

  • 470 horsepower

  • 975 lb-ft of torque

    • 25% more low-end torque vs. the current model

Max towing across the lineup, including:

  • Up to 21,900 pounds on 2500HD Crew Cab – best in class

  • Up to 22,500 pounds on 2500HD – a 4,000-pound increase

  • Up to 36,000 pounds on 3500HD

  • Most available trailering assistance technologies in its class through GMC’s ProGrade trailering system, offering up to 14 camera views

    • The largest-in-class 13.4-inch touchscreen

    • More efficient turbocharger with improved efficiency to boost low-end torque

    • Increased power and torque over the entire operating speed range

    • Improved engine braking with a more powerful turbo vane actuator and uprated valve springs

    • New cylinder heads with improved cooling jackets

    • An all-new combustion system within the heads that are matched with next-generation, higher-flow injectors, and greater fuel injection pressure

    • All-new engine controller

Features of the Denali line include:

  • Full-grain leather-wrapped door panels with etched stainless-steel speaker grilles

  • Full-grain leather front and rear seats with the Denali Ultimate badge on the front seatbacks and center console lid

  • All-new 16-way power-adjustable and massaging front seats

  • Premium microsuede headliner, visors, and A- and B-pillar trim along with leather-wrapped A- and B-pillar handles

  • 12-speaker Bose® Premium series with Centerpoint surround technology

  • Standard rear camera mirror, with full camera display

  • Standard 15-inch-diagonal multicolor head-up display

  • Standard power sunroof

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