2024 GMC Sierra 2500 HD Denali

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  • Overview

    A white 2024 GMC Sierra 2500 HD Denali is angled left.

    Drivers looking for a pickup truck who also want the ultimate performance and comfort features should check out the 2024 GMC Sierra 2500 HD Denali. Since its introduction in 1999, the Sierra 2500 HD has stood out as one of the most versatile heavy-duty trucks in the marketplace. This is because GMC offers this truck with so many different options to choose from that it is easy to configure it to fit your needs. The 2024 GMC Sierra 2500 HD comes in seven different trim levels, with the top-tier Denali offering a level of luxury rarely seen in a heavy-duty model without compromising on the capabilities of a truck of this size and weight.

    The GMC Sierra 2500 HD Denali is truly a truck for all seasons. Not only is it built to handle the various driving conditions you will encounter all year, but it can also get you through rough terrain you may experience off-road. It is also designed for drivers who need heavy-duty capabilities for work but also want a truck that can double as a fun family vehicle. If you are into the great outdoors, then the Sierra 2500 HD Denali is for you, with its excellent trailering capabilities allowing you to tow a camper, boat, or other recreational vehicle.

    470

    Horsepower

    975 lb-ft

    Torque

    22,500 lbs

    Towing

    Starting at

    $74,200 [a]

  • Performance

    A white 2024 GMC Sierra 2500 HD Denali is shown towing a trailer on a highway.

    Engine Options

    GMC offers two engines on the 2024 Sierra 2500 HD Denali. The standard engine is a 6.6-liter gas V8 that utilizes direct fuel injection to deliver an impressive 401 hp at 5,200 RPM and 464 lb-ft of torque at 4,000 RPM. This is the kind of output you need to get the toughest jobs done.

    Drivers who want a little greater output can opt for a 6.6-liter Duramax Turbo-Diesel V8 on their 2024 GMC Sierra 2500 HD Denali. This comes with an engine block heater to keep the diesel fuel warm on cold days. It also has an exhaust brake to help slow down your truck without having to rely too much on your wheel-mounted brakes; this will improve braking distance while also reducing wear on your brakes, which will extend their life. This diesel engine also uses direct fuel injection while delivering an improved 470 hp at 2,800 RPM and 975 lb-ft of torque at 1,600 RPM.

    Transmission

    No matter which engine you choose, your 2024 Sierra 2500 HD Denali comes with an Allison 10-speed automatic transmission as part of the powertrain. This electronically controlled transmission with overdrive gives you a very smooth shifting performance. It features Auto Grade Braking that will automatically downshift the transmission when you are on a downhill grade; this improves safety and reduces wear on your truck's brakes. It also has a Tow/Haul mode that improves performance when you are towing heavy loads.

    Drivetrain

    The 2024 GMC Sierra 2500 HD Denali comes with a standard 4x4 drivetrain that will improve traction in on and off-road conditions. The Autotrac 2-speed transfer case will properly distribute torque to each of the truck's wheels. The standard automatic locking rear differential will lock the rear axle when it detects a significant difference in wheel speed; this will allow the rear wheels to turn in unison, preventing your truck from getting stuck in mud or a rut.

    Wheels & Tires

    GMC has equipped the Sierra 2500 HD Denali with a set of 20-inch Ultra Bright machined aluminum wheels wrapped with 20-inch all-terrain tires. These have deeper treads than all-season tires, giving you better grip on and off the road. You can opt for a number of other wheels on the Sierra 2500 HD Denali, including 20-inch wheels with other designs and larger 22-inch wheels.

    Towing & Hauling

    One of the biggest reasons to buy a heavy-duty truck is its ability to tow large trailers and carry heavy loads. The 2024 GMC Sierra 2500 HD Denali excels in this regard, giving you a heavy-duty truck that can help you with the toughest tasks. Depending on your choice of engine, you get exceptional trailering capacity on this truck. If you opt for the 6.6-liter V8, you can tow up to 18,700 lbs. Choosing the available 6.6-liter Duramax Turbo-Diesel will increase this to an exceptional 22,500 lbs, giving you the ability to tow trailers for work or boats for your time off.

    The Sierra 2500 HD also can help you carry heavy loads. Although GMC offers this heavy-duty truck with a long bed, the Denali features a regular bed that measures six feet nine inches and provides 69.6 cu.ft. of cargo space. Just like with towing, opting for the available Duramax Turbo-Diesel will give you more hauling capability; the Sierra 2500 HD Denali with the conventional gas V8 can carry up to 3,759 lbs of cargo while opting for the turbo-diesel will increase this to 3,850 lbs.

  • Capabilities

    The black and brown interior and dash in a 2024 GMC Sierra 2500 HD Denali is shown.

    Exterior Features

    One thing that sets the Denali apart from the other available trims on the 2024 GMC Sierra 2500 HD is its wide array of comfort and convenience features. It also offers the best of both worlds when it comes to capability, providing you with a truck that is equipped for off-road adventures.

    The Sierra 2500 HD Denali has plenty of features on the outside designed to make your life easier. A set of 6-inch chrome rectangular assist steps will make it easier for you and your passengers to enter and exit your truck. This is important when you consider that the Denali has a higher ground clearance than most Sierra 2500 HD trims, with a full 10.28 inches off the ground.

    GMC has also equipped the Denali with a GMC MultiPro tailgate. This feature is unique to GMC trucks and has six different functions, including creating a step to make accessing, loading, and unloading cargo in the bed easier than ever. You can also use this to make a workbench or serving space when tailgating. The bed box comes with a standard 120-volt power outlet that will allow you to use your truck to power tools when on a job site.

    Interior Features

    Although GMC offers the 2024 Sierra 2500 HD with three different cab styles, the Denali trim has the Crew cab. This is the largest of the cab styles, giving you plenty of room for up to five passengers. For example, those seated in the front row will enjoy 43 inches of headroom and 44.5 inches of legroom, while those seated in the back will appreciate having 40.1 inches of headroom and 43.4 inches of legroom. This will let everyone stretch out, especially on long drives.

    The Denali's seats are upholstered with Forge Perforated Leather. These not only look elegant but are also incredibly comfortable. The steering wheel is also wrapped for improved comfort and grip. The front seats, rear outboard seats, and steering wheel are also heated, which will come in handy on cold mornings. This all adds up to a heavy-duty truck that provides the comfort and convenience features you'd expect on a luxury sedan or SUV.

    Off-Road Ability

    With the Denali, you get a luxury heavy-duty truck that is also at home on dirt trails. This is because the Sierra 2500 HD Denali rides on a set of all-terrain tires with an off-road suspension. GMC has also equipped the Denali with a set of skid plates designed to protect the front, underbody, oil pan, and transfer case on your truck. When coupled with the higher ground clearance of this trim, you can traverse rocks, logs, and other debris with the peace of mind that you will not damage your vehicle.

  • Technology

    The black and brown dash is shown in a 2024 GMC Sierra 2500 HD Denali.

    Safety Features

    The Denali trim of the 2024 GMC Sierra 2500 HD is one of the most technologically advanced heavy-duty trucks available today. GMC has used technology to improve the safety and connectivity capabilities of the Sierra 2500 HD Denali. As a result, you get a heavy-duty truck that truly covers all the bases.

    The 2024 GMC Sierra 2500 HD Denali comes equipped with GMC Pro Safety, a comprehensive suite of advanced driver assistance features that will help you avoid collisions and get you and your passengers safely to your destination.

    The Following Distance Indicator will let you know if you are getting too close to the vehicle in front of you. If that continues and the other vehicle brakes, the Forward Collision Alert will sound, allowing you to take evasive action. It will also engage Automatic Emergency Braking to bring your truck to a safe stop or to reduce the impact if a collision is unavoidable. This also has Front Pedestrian Braking, which works similarly at slower speeds to avoid colliding with a pedestrian or cyclist.

    One of the most common causes of highway collisions is driver distraction. A momentary lapse of focus can cause a driver to drift out of the lane. When that happens on your Sierra 2500 HD, the Lane Departure Warning will sound so you can safely steer back into your lane.

    GMC Pro Safety also features IntelliBeam. These automatic high beams will turn on when the system detects an area of low light and then turn off when the lighting improves or the system detects another motorist. This will allow you to focus on your night driving without having to adjust the headlights. The Denali also has an HD Surround Vision camera that will give you multiple views behind and around your truck, making backing up and parallel parking safer and easier.

    Infotainment Elements

    The 2024 GMC Sierra 2500 HD Denali features a GMC Premium Infotainment System on an expansive 13.4-inch touchscreen display. This has Google Built-In, giving you your favorite apps and features. You can easily pair your phones with the system using wireless Apple CarPlay and Android Auto; these will let you make hands-free calls and texts, even if you leave your charging cables at home; these will also let you stream your favorite apps over the system, so you can listen to your favorite music wherever you go. You can also keep your devices charged using the convenient wireless charging pad located in the Denali's center console. There are also plenty of USB ports located in the cab, so you and your passengers can keep your phones charged as well.

    The Denali comes with a Bose Premium Series audio system. This has 12 speakers strategically located throughout the truck's cab to maximize the audio experience. It even has a RichBass woofer to get the most out of your music's bass tones. Simply connect your phone to the GMC Premium Infotainment System, select your favorite music streaming app, and click 'play' on some great music.

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