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We engineered the Sierra 2500 Denali HD to exceed your performance expectations, pushing it to the limit to deliver the kind of professional grade capability you demand.

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Trailer confidently with Sierra 2500 Denali HD:


  • Maximum conventional trailering capacity of 14,500 lbs2
  • Maximum fifth-wheel trailering capacity of 18,000 lbs2
  • Maximum payload of 3,534 lbs3



Sierra 2500 Denali HD puts trailer safety and control at your fingertips.


  • New Digital Steering Assist provides improved steering wheel feel at both highway and parking lot speeds by controlling fluid flow in the power steering system
  • Trailer Sway Control
  • Hill Start Assist holds the brakes momentarily to give you extra time to switch from brake to accelerator
  • Tow/Haul Mode with Cruise and Powertrain Grade Braking
  • Integrated Trailer Brake Controller provides fingertip control and monitoring of your trailer brakes
  • Standard Rear Vision Camera System
  • Available Gooseneck/5th Wheel Prep Package. Learn More on GMC Life.


To let you engage an extra measure of braking confidence on long grades, or in tow/haul mode, Sierra 2500 Denali HD utilizes advanced technologies to ensure that you stay at your desired speed:


  • The Duramax diesel exhaust brake uses engine compression to create “negative torque” to help slow the vehicle
  • Duralife™ brake rotors protect against corrosion and can double life compared to conventional rotors.


The 2500 Denali HD’s standard Trailering Package gives you the capability to trailer just about anything. The package includes:


  • Trailer hitch platform
  • 2.5″ receiver with 2″ adapter
  • 7- and 4-pin wiring connectors
  • A rear-vision camera view that makes it easier to reverse and negotiate tight spaces while trailering
  • Available power folding trailering mirrors with LED rear guidance lamps to aid visibility when reversing


We built the Sierra 2500 Denali HD to deliver everything you expect from a heavy-duty truck — and then we exceeded those expectations with the most powerful Sierra ever.



The advanced DURAMAX diesel in the Sierra 2500 Denali HD pickup truck delivers 397 hp and 765 lb-ft of torque, making it the most powerful Sierra ever. The DURAMAX Diesel engine has a strong reputation and a proven track record with nearly 1.4 million sold since 2000.4 Paired with the sophisticated Allison® 1000 Series Transmission with overdrive, this available powertrain also offers a maximum highway range of up to 680 miles on a single fill-up.5


This ferritic nitrocarburizing technology is a GM-exclusive patented process that hardens and strengthens brakes. Duralife®12 protects against corrosion and can double the life of the brakes compared to conventional rotors.


The enhanced Allison 1000 is designed to handle the higher torque capability of the 6.6L DURAMAX engine, while also helping improve fuel economy and provide seamless assistance with the exhaust brake system.


For fast starts in cold weather, quiet operation and maximum efficiency, the direct injection system helps Sierra HD with the available Duramax Diesel engine start in as little as 3 seconds at -40ºC and operates at nearly 30,000 psi to turn heavy diesel fuel into a fine mist, delivering low emissions and great power.


Sierra 2500 Denali HD delivers a smoother ride with a fully independent coil-over-shock front suspension and 3″-wide multistage rear leaf springs, which engage progressively as the load in the bed or the hitch increases.


From strong, steady power to bold acceleration on the highway, the 6.0L V8 with Variable Valve Timing (VVT) is up to any task by:

  • Delivering power when needed and efficiency when less power is called for
  • Monitoring and opening and closing valves for near peak levels of torque across the entire range of engine speeds


No other competitor in its class offers an available fully automatic locking rear differential for on- or off-road use.

  • Delivers added traction in driving and wheel-slip situations
  • Senses a difference in speed between left and right rear wheels, and then locks to turn both wheels in unison


Stay confidently in command of your truck and whatever you may be hauling or trailering.


  • Standard Hill Descent Control allows for a controlled descent in rough terrain without use of the brake pedal
  • StabiliTrak intelligently manages braking and throttle to help keep the vehicle on its intended path
  • Automatic Locking Rear Differential delivers increased traction
  • Driver Shift Control lets you shift gears up and down with the tap of the shift selector
  • Digital Steering Assist enables ease of handling at low speeds and improved steering feel at high speeds


Nearly two-thirds of the Sierra cab structure is made from high-strength steels. It’s a fortress of strength that contributes to the Sierra’s quiet cabin. We also use high-strength steel in our fully-boxed frame rails and major frame cross-members, the 2016 Sierra 2500 Denali HD is clearly a respected leader in the premium heavy duty truck market — by example.

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Cargo box innovations in the 2016 GMC Sierra 2500 Denali HD heavy-duty pickup truck transform working harder into working smarter.


The 2016 GMC Sierra 2500 Denali HD shows how our “Never Say Never” approach to engineering can transform working harder into working smarter. The truck’s high-strength steel bed includes intuitive features, such as:


  • CornerStep rear bumper with integrated handholds provides easy access to the box when the tailgate is lowered or up
  • Standard spray-on bedliner
  • New remote locking tailgate
  • Standard LED box lighting to help you see inside when a tonneau cover is installed
  • Eight total tie-down hooks including four moveable upper hooks
A high-performance bedliner comes standard in the 2016 GMC Sierra 2500 Denali HD pickup truck, helping to protect your truck bed from scratches.


Our high-performance bedliner helps to protect your truck bed from scratches, dents, and corrosion by providing it with a durable, watertight seal that:


  • Utilizes a textured, non-skid, anti-corrosive surface
  • Covers bed surfaces below the bed rails
  • Features a prominent Denali logo on the front wall of the box
  • Helps to extend the life of both your equipment and your truck


Attention to detail and precise design deliver the 2016 GMC Sierra 2500 Denali HD to an unparalleled level of refinement.


It’s the little things that set the new Sierra 2500 Denali HD truck apart, taking Denali style to an unparalleled level of refinement. It features design details such as:


  • Projector headlamps with new HID bulbs
  • LED signature front lighting
  • Signature Denali grille
  • Bright chrome bumpers
  • Available 20″ polished aluminum wheels
  • Wheel arch moldings
  • Chrome belt moldings
  • Chrome mirror caps and door handles


The 2016 GMC Sierra 2500 Denali HD pickup truck signifies comfort and quality with attention to detail and premium features and materials.

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The 2016 GMC Sierra 2500 Denali HD heavy-duty pickup truck's cabin is engineered to provide a quiet and comfortable experience.


The Denali cabin is engineered to provide you and your passengers with a quiet, comfortable experience. Features contributing to a quiet cabin include


  • Triple door seals that block outside noise
  • Shear and hydraulic body mounts with hydraulic engine mounts to reduce vibration
  • Aerodynamic exterior mirrors that reduce wind noise
The 2016 GMC Sierra 2500 Denali HD truck features real tinted brushed aluminum trim and appointments.


  • Perforated leather-appointed seating designed to provide comfort and ventilation
  • Soft-touch instrument panel
  • Real tinted brushed aluminum trim and appointments
  • Contrast stitching
The 2016 GMC Sierra 2500 Denali HD heavy-duty truck delivers a higher standard of comfort, with luxurious features like a heated steering wheel.


The 2016 Sierra 2500 Denali HD heavy-duty truck interior keeps you comfortably in command. Standard features include:


  • Heated and ventilated driver and front passenger 12-way power-adjustable bucket seats
  • Heated steering wheel
  • Dual Density foam seats that provide support and comfort


The 2016 Sierra 2500 Denali HD pickup truck sets a higher standard with purposeful, convenient technology inside and out — to help you stay connected and in control.


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The standard 8" diagonal Color Touch Radio with IntelliLinkand navigation lets you customize your media and connect to your world. Features include:


  • 8" diagonal customizable, Color Touch-screen with navigation
  • Natural Language voice command
  • MyMedia which connects media libraries from multiple devices
  • Customizable “Favorites” which lets you save albums, songs, artists, destinations and contacts
  • Bluetooth® connectivity7
  • Smartphone integration for hands-free calling and phone book access
  • Ability to stream Pandora® Internet Radio8
  • HD Radio


Apple CarPlay9 support syncs your phone to Sierra’s IntelliLink system, allowing you to:


  • Send, read and reply to texts messages
  • Access your artists, songs, playlists and iTunes radio
  • Access Apple Maps
  • Make calls and listen to voicemail
  • Support additional audio apps


The 2016 Sierra 2500 Denali HD helps you stay connected with a convenient Wireless Charging Pad, which allows you to seamlessly charge phones, tablets or other mobile devices with ease.


OnStar offers an available 4G Wi-Fi hotspot that helps you stay connected to the internet on the go.10 It’s available and ready to connect to your devices, giving you an integrated and customizable in-vehicle experience.

myGMC Mobile APP11

Remotely control your vehicle from virtually anywhere with the app that lets you remote start your vehicle (if equipped), pinpoint it on a map, manage your vehicle’s 4G Wi-Fi hotspot (if equipped), fuel level, tire pressure and oil life.


The 2016 Sierra 2500 Denali HD’s state-of-the-art safety and driver alert technologies provide peace of mind and help prepare you for the unexpected.

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Sierra 2500 Denali HD’s advanced technologies pair intelligent engineering with driver-centric safety, using cameras or ultrasonic sensors to watch where you might not be looking. Sierra is the first pickup to offer this technology, which lets you know when you are approaching another vehicle too quickly or when you’ve left your driving lane. Available technologies include:




  • Standard 3-month trial to the OnStar® Guidance 12
  • Service includes Automatic Crash Response, Turn-by-Turn Navigation13, Roadside Assistance, AtYourService, a link to emergency services, and Remote Door Unlock.
  • The OnStar Basic Plan, which is available for five years from vehicle delivery date, includes OnStar Vehicle Diagnostics, Dealer Maintenance Notification and access to myGMC mobile app services.11


Safety features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings, and road conditions at all times. Read the vehicle owner’s manual for important feature limitations and information.


Your safety is very important to us. If you want to determine whether or not there is a recall on your current vehicle or on a vehicle you are considering, visit or call (888) 327-4236.


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Standard on every 2016 GMC Sierra 2500 Denali HD, GMC Pro Grade Protection has you truly protected with features and services including:


  • Two maintenance visits (includes DEF for diesel)14
  • 3-year/36,000-mile Bumper-to- Bumper Limited Warranty15
  • 5-year/ 60,000-mile Powertrain Limited Warranty15
  • HD 6.6L Duramax Diesel 5 year/100,000-mile Powertrain Warranty15
  • 5-Year/60,000-mile Roadside Assistance & Courtesy Transportation15
  • HD 6.6L Duramax Diesel 5 year/100,000-mile Roadside Assistance & Courtesy Transportation15
  • 3-month trial of OnStar12 Guidance Plan with a suite of emergency security and diagnostic
  • 5-year OnStar Basic Plan16