If you want the ultimate work truck, look no further than the 2021 Sierra 2500HD or 3500HD. With a standard 6.6L V8 Turbo-Diesel Injection and a 6-speed transmission or a Duramax 6.6L Turbo-Diesel engine with 10-speed automatic transmission your drive has never been more powerful or smoother. The 2021 Sierra HD makes towing easy with the GMC ProGrade Trailering App, which offers a variety of unique features designed explicitly to improve the trailering experience. The Durabed of the Sierra HD is the most functional bed in its class. Made with high-strength steel, the bed features 12 standard tie-downs, larger CornerStep rear bumper, and offers available features like the GMC MultiPro tailgate.
Engineered to be large and in charge, the monstrous exterior of the Sierra Heavy Duty was built big so you can tow big.
The standard Side Bed Step conveniently located just in front of the rear wheel arches complements the large CornerStep rear bumper to help provide easy access when grabbing equipment front the cargo bed.
The available Duramax Turbo-Diesel engine includes the Dual Path Air Induction System, which draws dense, cool air through both the hood scope and the large front grille to provide cooler induction air temperatures to maximize horsepower and help optimize trailering performance.
The available GMC MultiPro Tailgate offers six distinct functions designed to help improve loading, unloading and accessing the cargo box
In both corners of the rear bumper, large footwells, lined with an anti-slip texture and sized for large boots, helps make access to the cargo bed easier than ever. Standard an all Heavy-Duty models.
Sierra Heavy Duty’s refined and expansive cabin offers advanced, thoughtfully placed technology to help ensure your ride is smooth and smart.
Backseat passenger are sure to be comfortable with the available heated rear outboard seats and spacious rear leg room on Crew Cab models.
Convenient and spacious storage solutions include available rear seatback storage, perfect for stowing a smartphone and your other road trip essentials.
Sierra HD Crew Cab models have ample storage options to pack the stuff you need, with features like rear-folding split bench with under-seat storage.
Lighted centre console storage with available lockable console vault accessory, and large lower lockable glove box and upper glove box.
When on the road in the Sierra Heavy Duty, it’s OK to leave the cords at home. The available wireless charging pad, located within easy reach near the cup holders, has excellent charging abilities and keeps your compatible smartphone charged and ready.
The available Bose Premium Sound System supplies seven wall-placed speakers to produce powerful, high-quality concert-like sound wherever you go.
The 2021 Sierra Heavy Duty pickup truck offers up to 16,329 kg (36,000 lb) of available max. towing. It’s built strong so you can tow strong. Its large drive shaft and rear axle will give you durability and strength. And its brakes and steering offer excellent contol.
The 2021 Sierra Heavy Duty truck features advanced engines and transmission that power a confident driving and trailering experience:
To help maintain optimal operating temperatures of the available 6.6L Duramax Turbo Diesel V8 engine, a massive 28″ variable-speed cooling fan is used. Dense, cool air from the Dual Path Air Induction System is drawn through both the hood scoop and the large grille to maximum horsepower and help optimize trailering performance. The factory-installed Diesel After-Run feature is designed to help cool down the engine following heavy usage.
Eases driver’s steering effort when maneuvering at low speeds, reduces the steering effort needed to return the heavy-duty truck to centre, and adapts to crowned road surfaces, reducing the need to correct steering over long stretches of uneven road. It includes new enhancements to help with driving response, especially when trailering or when carrying a heavy load.
Prevents movement when shifting out of park on a hill and moving a foot from brake to accelerate pedal by automatically brakes at each wheel for an extended period of the time while trailering.
To help with positioning, after backing up to a trailer hitch using available Hitch View, Sierra Heavy Duty will automatically apply the parking braking upon shifting into park to avoid unintentional rolling.
Sierra is the first heavy-duty truck in its class to offer a 2-speed AutoTrac transfer case with an active automatic 4WD setting, which provides seamless shifting between two-and four-wheel drive based on road conditions.
Technology that delivers a premium driving experience with advanced connectivity and convenience in its Heavy Duty truck.
Easily keep tabs on your truck and trailer with up to 15 different available camera views including HD Surround Vision, Rear Camera Mirror and Bed View Camera.
The available Rear Camera Mirror uses a camera to provide you a wide and less obstructed view behind the vehicle while you’re driving. You can switch between the camera view and a traditional rearview mirrors.
An available multicolour 15″ diagonal Head-Up Display (a first in the heavy-duty pickup class), helps you keep your eyes on the road by projecting directly onto the windshield key information.
Available HD Surround Vision uses multiple camera to display to a digital overhead image of the area around your vehicle along with Rear Vision Camera or front views. It works at low speeds and may even help you park and avoid nearby objects. You can select additional views on your camera display.
The Sierra Heavy Duty pickup is engineered to enhance your trailering experience with the ProGrade Trailering System. This system of intelligent trailering technologies helps streamline the hitching and towing process with integrated tools that helps you tow with commanding control.
To help improve your trailering experience, Sierra Heavy-Duty’s available In-Vehicle Trailering App offers custom trailer profiles, trailer statuses including available tire pressure and temperature monitoring, and more. The app is integrated and accessible through Sierra’s Infotainment System, with features including:
myGMC mobile app Trailer Features include:
Sierra Heavy Duty is designed to integrate ASA Electric iN-command Control System with Global Connect and access through the myGMC mobile app. The system allows owners to monitor and control a range of smart system, such as water tank levels, HVAC controls and even power slide-outs, in compatible recreational trailers equipped with the technology.
When you’re camping or trailering and want to bring your music outdoors – without leaving your Sierra truck running – the available accessory MultiPro Audio System by Kicker is designed to integrate into the MultiPro Tailgate. This 100-watt exterior audio system has full Bluetooth.
SiriusXM with 360L is the newest, most advanced SiriusXM entertainment experience ever offered in a GM vehicle. You get a variety of premium content including 140+ channels of commercial-free music, plus On Demand shows, performance, talk, entertainment, original programming, artist-dedicated channels and much more.
Connect to available Amazon Alexa Built-In for instant, hands-free access to music, directions, calls, news, weather and more.
With Apple CarPlay compatibility you have wired or available wireless access to iPhone features such as hands-free phone calls and messaging, Apple Music, Apple Maps and more.
Android Auto gives your compatible smartphone on-the-go access to Android features such as Google Maps, Google Play Music and more via wired or available Wireless Phone Projection.
Enhance your awareness of the road and surrounding vehicle with Sierra HD’s intelligent safety technologies.
The available Lane Departure Warning can alert you if you might be unintentionally drifting out of detected lane lines so you can quickly take action. It will not alert you if you’re using your turn signals or it can quickly take action. It will not alert you if, you’re using your turn signals or it detects your may be intentionally steering.
Front and Rear Park Assist can provide distance alerts to nearby detected objects in front of or behind your vehicle to help you park and avoid collision at low speeds.
The available Safety Alert Seat uses left, right, or both-side driver seat vibration pulses to help you identify the direction of potential crashes so you can quickly take action. You can also switch to beeping crash avoidance alerts.
When driving conditions are dark, available IntelliBeam – Auto High Beams can automatically turn the vehicle’s high-beam headlamps on and off according to surrounding traffic conditions.
The available Automatic Emergency Braking works with Forward Collision Alert to help you avoid or reduce the severity of a front-end collision with a detected vehicle you’re following. This feature works at speeds below 80 km/h. Camera technology is used to automatically provide hard emergency braking or enhance the driver’s hard braking.
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The available Following Distance Indicator displays the gab time in seconds between your vehicle and a detected vehicle you’re following. This can help you decide if you’re following much too closely.
The available Rear Cross Traffic Alert can warn you of detected left or right cross traffic behind your vehicle when you’re in Reverse.
The available Lane Change Alert with Side Blind Zone Alert can provide side-mirror visual alerts when a detected moving vehicle is quickly approaching or is in your side blind zone. It can help you avoid lane change collisions.