Engineered to conquer, the soon-to-be-released 2020 GMC Sierra HD is a vehicle brimming with increased durability and attention to detail to give you full control over the terrain.
Available late this summer, here are the standout aspects of the 2020 GMC Sierra HD that you need to know before getting your hands on one.
You’re assured heavy-duty strength with the 2020 GMC Sierra HD thanks to the first-ever 10-speed Allison Transmission.
Founded in 1915, Allison Transmission is the largest provider of commercial-duty, fully-automatic transmissions worldwide. Their transmission combines enhanced performance and fuel economy, improving driver comfort and control with a quality reputation for uptime and reliability.
This transmission combines with the available 6.6L Duramax Turbo Diesel V8 for superior power delivery. The turbo diesel produces 445 horsepower and 910 lb.-ft. of torque with the transmission, the first of its kind in the heavy-duty pick-up segment.
This unprecedented 10-speed transmission has closer gear spacing, which allows the engine to operate in an optimal range on a regular basis through varying load and terrain conditions. These features, combined with fortified components used throughout Sierra Heavy Duty’s driveline, provide maximum torque to the wheels at all times, offering drivers maximum control and balance.
With the Prograde™ Trailering System, the 2020 GMC Sierra HD packs a system of available technologies, improving your trailering experience by mixing convenience with functionality.
This system includes an in-vehicle trailering app that’s integrated into the infotainment system. The app offers the Trailer Light Sequence Test, Trailer Theft Alert, and an available Trailer Tire Pressure and Temperature Monitoring System. Furthermore, you can fully control and monitor your trailer’s progress from inside your 2020 GMC Sierra HD cabin thanks to Smart Trailer Integration.
Thanks to the industry-first Transparent Trailer View, you can see directly behind the trailer for improved visibility. There is also an available bed view to see inside the truck bed and check on cargo while making your road trip. Furthermore, there’s available rear-side view access so that you can check on the front of the trailer while driving. These accessible visuals are part of a class-leading 15-camera view on the all-new GMC Sierra, making sure you don’t miss a beat while you’re on the road.
The towing capacity for the 2020 GMC Sierra HD is top quality as you can tow up to 13,608 kg or 30,000 lbs.
With the 2020 GMC Sierra HD’s MultiPro Tailgate technology, you essentially get two tailgates in one and can position it for use in multiple ways. MultiPro’s design consists of a primary gate, which is hinged like a conventional tailgate, and a smaller inner gate, hinged on the primary gate panel.
As a result, raising and lowering these tailgate panels in different combinations allows MultiPro to take on varying roles, including being a bed extender to an entry step.
Thanks to the world’s first six-function MultiPro tailgate, the 2020 GMC Sierra HD comes packed with improved cargo box accessibility and functionality. Your cargo box functionality improves by adapting to your needs using six different functions, making loading and unloading much more simple.
The new off-road-oriented AT4 builds on the foundations of the Sierra Heavy Duty pickup truck by delivering a rugged design and strong off-road capability. You get a truck created to help you thrive beyond the pavement.
Key features on this tough-toting AT4 include off-road suspension with Rancho shocks and skid plates as well as available 20” Goodyear Wrangler all-terrain tires. Additionally, this AT4 is equipped with a Traction Select System with available off-road mode.
The trim is accentuated by distinct black chrome exterior elements to give it a sharp, fierce look while also boasting an Athletic Jet Black interior with Kalahari accents.
The 2020 GMC Sierra HD is available in 3/4-ton 2500, 1-ton 3500 single rear wheel, and 1-ton 3500 dual rear wheel configurations. Its upgraded driveline includes more robust front and rear axles as well as a standard 11.5-inch ring gear on 2500 models and a 12-inch ring gear on 3500 models. Trims include the aforementioned AT4 as well as the Denali and SLT.
If you have any questions about the 2020 GMC Sierra HD, or you’d like to take one for a test drive, you can visit Humberview Chevrolet Buick GMC!
You might also be interested in these blogs: What’s New With The 2020 GMC Acadia And Terrain? | Humberview Chevrolet Buick GMC in Toronto | Introducing The New 2022 GMC Sierra | Humberview Chevrolet Buick GMC in Toronto | The All-New 2020 Chevrolet Corvette Stingray Is Coming To Etobicoke | Humberview Chevrolet Buick GMC in Toronto
10 reasons to consider the 2026 Buick Envision as your next small SUV for the city
Finding an SUV that handles daily traffic, tight parking, and the occasional weekend trip without feeling like a compromise is not easy. The 2026 Buick Envision is built around exactly that kind of daily reality, and here is why it holds up. Explore Buick SUV Inventory Discover refined comfort, versatile capability, and thoughtful technology designed for confident city driving. Shop Buick SUVs...
Fall EV Checklist: Preparing Your Chevrolet for Ontario’s Dropping Temperatures
Ontario mornings are getting cooler, and that first frosty windshield is usually the signal that winter habits need to start now, not in January. For Chevrolet EV owners, a few small routines this fall can protect range, keep charging simple, and make cold mornings less of a hassle. This guide answers the questions Chevrolet EV owners ask most as temperatures start to drop, from preconditioning...
From Fishing Boat to Cruiser: Matching 2026 Chevrolet and GMC Models to Your Trailer Weight
Matching a trailer to the right tow vehicle starts with the trailer, not the badge. A 14-foot aluminum boat, a mid-size travel trailer, and a tandem-axle utility trailer each demand different combinations of towing capacity, tongue-weight support, and cabin space. Chevrolet and GMC build across that range for Ontario drivers, from three-row SUVs to heavy-duty pickups, so the better question...
