Thursday, July 7, 2022
News 2021 GMC Sierra Gains More Trailering Tech And More Affordable Duramax Engine

2021 GMC Sierra Gains More Trailering Tech And More Affordable Duramax Engine

With more accessible features including for towing, the 2021 GMC Sierra is ready to take you to the great outdoors.


  • New features include Jack-Knife Alert and Trailer Length Indicator.

  • Towing can be anxiety-inducing and GMC wants to help.

  • MSRP of the popular Duramax engine option drops by $1,500.


All things that lead to the great outdoors, or out of the house, are very much on the rise. RV sales are up and, according to the RV Industry Association, more than 46 million Americans are planning to take an RV trip in the next year. It is with this in mind that GMC is introducing new or improved trailering technology for the Sierra.

Of these enhancements, both the Sierra 1500 and Sierra Heavy-Duty trucks will be available with (from GM‘s press release):

2021 GMC Sierra | Photo: GMC

  • Trailer Length Indicator: New for 2021, when enabled and driving forward with the turn signal activated, the center console screen displays a red overlay twice the length of the compatible trailer and shows when other vehicles are present and may interfere with a lane-change maneuver.
  • Jack-Knife Alert: New for 2021, Jack-Knife Alert tracks the position of the compatible trailer in relation to the vehicle. If the front of the trailer approaches the rear of the vehicle, an alert is displayed when there may be a potential jack-knife situation.
  • Rear Trailer View now features guidelines and Trailer-Angle Indicator: Rear Trailer View has been enhanced to include guidelines that assist when backing a trailer into place and a Trailer-Angle Indicator to show the relationship between the truck and compatible trailer. Rear Trailer View requires the customer-installed available GM auxiliary accessory camera.
  • Rear Side View enhancement: When driving forward on the 2020 GMC Sierra, Rear Side View provides a split view of the left and right sides of the truck and compatible trailer that is automatically biased based on the trailer’s angle. In the 2021 GMC Sierra, drivers will have access to this view while driving in reverse, making it easier to see surrounding vehicles and objects while positioning a trailer.
  • Cargo Bed View enhancement: New Cargo Bed Zoom View and Bed Hitch Guidance are now available, which can be helpful for aligning and hooking up a gooseneck/fifth-wheel trailer.

Furthermore, the MultiPro Tailgate will be offered on more trims in 2021, including the Sierra SLE and Elevation. While the V8 engines can tow with ease, the 3.0-litre Duramax turbo-diesel is an ideal choice for efficiency and power. In 2021, pricing will drop to $995 as an option on the Sierra 1500 5.3-litre with Dynamic Fuel Management.

2021 GMC Sierra | Photo: GMC

2021 GMC Sierra | Photo: GMC

2021 GMC Sierra | Photo: GMC

2021 GMC Sierra | Photo: GMC

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Matt St-Pierre
Trained as an Automotive Technician, Matt has two decades of automotive journalism under his belt. He’s done TV, radio, print and this thing called the internet. He’s an avid collector of many 4-wheeled things, all of them under 1,500 kg, holds a recently expired racing license and is a father of two. Life is beautiful. Send Matt an emai

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