2020 GMC Sierra 2500HD Overview
The all-new 2020 GMC Sierra 2500HD boasts incredible workhorse capabilities, plush comfort, and an array of cutting-edge technologies for trailering and infotainment. This next-generation truck is available in five trims: Sierra, SLE, SLT, AT4, and Denali. Configure it with a standard or long bed and a regular, double, or crew cab.
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Performance and Powertrains
The 2020 GMC Sierra 2500HD can be equipped with your choice of two muscular engines:
- A 6.6-liter Duramax turbodiesel V8, paired with a 10-speed Allison automatic transmission: 445 horsepower and 910 lb-ft of torque
- An all-new 6.6-liter direct-injected V8 with variable valve timing, paired with a six-speed automatic transmission: 401 horsepower and 464 lb-ft of torque
Towing and Hauling Capabilities
The 2020 Sierra 2500HD delivers rugged, powerful towing and hauling capabilities for any job you might need to do. When outfitted with the 6.6-liter Duramax turbodiesel V8 and fifth-wheel/gooseneck trailering equipment, the Sierra 2500HD can tow up to 18,510 pounds. Models with the 6.6-liter gas V8 can tow up to 16,900 pounds with fifth-wheel/gooseneck equipment. If you’re packing the bed full, you’ll have access to 69.6 cubic feet of cargo volume with the regular box and 83.5 cubic feet with the long box. With certain long box models, you can move a maximum payload of 3,979 pounds — or nearly 2 tons.
The exterior of the 2020 Sierra 2500HD delivers tough features to make hard work easier. Every trim features cab-mounted cargo area lamps, at least 12 bed tie-downs, a locking tailgate, a side BedStep, and a CornerStep rear bumper to maximize the usefulness of the cargo box. Two innovative tailgate options are available: EZ lift and lower assist with power lock/release or the advanced new six-function GMC MultiPro Tailgate.
The interior of the 2020 Sierra 2500HD is characterized by practical, spacious comfort. Seat trim options include vinyl, cloth, and perforated leather. The comfortably cushioned driver’s seat sits 1 inch higher than before and is available with power adjustability and lumbar support for long drives. Other available comfort features include heated and ventilated seats, a heated and leather-covered steering wheel, and an auto-dimming rearview mirror. The cabin also holds a variety of unique available storage options, including a lockable console vault for valuables, rear seatback storage, and rear underseat storage.
The 2020 Sierra 2500HD offers a wide variety of technologies that improve visibility, make trailering a breeze, and keep you connected. Monitor whatever you’re towing with the available ProGrade Trailering System and in-vehicle trailering app. For smoother trailering, opt for a 15-camera system that lets you see the hitch, the bed, and even a transparent trailer view. Keep your eyes on the road with the available 15-inch Head-Up Display. For information and entertainment, you’ll have the standard 7-inch GMC Infotainment System with Apple CarPlay, and Android Auto, Bluetooth, and available navigation. Stay connected with the available 4G LTE Wi-Fi hotspot, and keep devices powered up with available wireless charging and multiple available USB ports.