GMC has unveiled the new 2020 Sierra Heavy Duty pickup with a completely new fascia and taller, more imposing presence.

It’s also got a bunch of new technology and a new 10-speed automatic transmission.

GMC has spared no expense in creating the new 2020 Sierra HD, providing it with the very best in trailering technology. No less than 15 cameras are installed with GMC’s ProGrade trailer system, including a segment-first trailer view that makes the trailer appear transparent on the monitor. It uses a tailgate-mounted camera and a camera mounted on the rear of the trailer to make it seem like whatever you’re hauling isn’t even there.

Also included is GMC’s trailering app which allows owners to test the electrical system, lights, review tire pressure and temperature, and follow a pre-departure checklist to ensure everything is done right.

If that’s not enough trailer-oriented tech, then there’s also the iN∙Command control system. Available through the myGMC mobile app, it allows drivers to control the trailer’s A/C or water heater, check water and holding tank levels, and check fuel levels on generator-equipped trailers.

Another first for the Sierra HD is GMC’s MultiPro tailgate that can be configured 6 different ways, depending on the task at hand. It can transform into a mobile workbench, be half-stowed to allow oversized cargo or morph into a step to allow easier entry into the bed.

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With the tech out of the way, let’s talk about the Sierra HD’s presence, of which there is now plenty. A new hood scoop sends air to the 6.6-L Duramax turbodiesel, which still produces 445 hp and 910 lb-ft of torque. A brand new 10-speed Allison automatic transmission turns torque into motion.

The roof is taller and there’s more legroom and headroom than ever before, although GMC didn’t give us specific numbers to prove it. It certainly looks taller, that’s for sure.

GMC also continues rolling out AT4 versions of their vehicles, and the Sierra HD is no exception. This off-road trim comes with body colored bumpers and grille surround, red recovery hooks, and some fancy interior color options. It also gets Rancho shocks, skid plates, and an Eaton locking rear differential.

Don’t forget the Michelin off-road tires that cover the 18-inch or available 20-inch wheels.

GMC will provide pricing closer to the Sierra HD’s release later this summer.

NEXT: ALL-NEW GMC SIERRA AT4 NOW HAS A PERFORMANCE PACKAGE WITH A CARBON-FIBER BED