The 2020 GMC Sierra HD pickup is due later this year with increased towing capacity.
The Allison transmission gets a major upgrade on the taller, more robust 2020 Sierra HD.
The list of towing technology is impressive: cameras, smartphone apps – the whole nine yards.

The 2020 GMC Sierra HD pickup will soon be here, and besides having the design of a Soviet-era apartment building, it’s a pretty amazing piece of work. What’s also amazing is that I get to write about it, because most of the time, Carl Anthony gets all the truck stuff around the office.
Some guys have all the luck but today, I get to have some fun!
Truck Talk
Funny thing about the racing world, or at least the more amateur end of it, is that you spend a lot of time talking about trucks. As enjoyable as it would be to drive your vintage racer directly to the next track, most likely you’re going to have to tow it there in a trailer. So there’s lots of conversation in the paddock about highway MPG and torque and how your new truck handles a trailer. GMC must be thinking ahead, because one of the things they focus on, right up front, is how the new Sierra HD handles towing stuff.
“Trailering is the most important consideration for Sierra Heavy Duty customers,” said Jaclyn McQuaid, GMC Vehicle Chief Engineer, Heavy Duty Trucks. “The new features and technologies in the 2020 Sierra HD make it easier than ever to hitch a trailer and tow it confidently.”
See what ...