Differences Between the 2022 Sierra AT4 and 2022 Sierra AT4X

2022 GMC Sierra AT4X parked on rocks

One need not be an automotive expert to understand just how capable and refined the entire 2022 GMC Sierra lineup is. Now that the 2022 model year is in full swing, the team of product experts at Terra Nova GMC Buick wanted to help customers answer some important questions before they visit our showroom. Today, we want to take a closer look at the differences between the 2022 GMC Sierra AT4 and 2022 GMC Sierra AT4X. There is certainly a fair amount of overlap between the two models, and the things that set the two trims apart exist on the margins. Let’s take a closer look.

READ MORE: Reserve the 2022 GMC Sierra

What Comes with the 2022 Sierra AT4?

The AT4 trim has been a part of the Sierra lineup for a couple of model years. It was General Motors’ successful effort to bring a little more refinement to a platform that already excelled at off-road driving. Terra Nova GMC Buick customers will be able to equip the 2022 Sierra AT4X with:

Powertrain Options

  • 3.0-litre Duramax Turbo Diesel Engine
  • 6.2-litre V-8
  • 10-speed automatic transmission

Standard Packages

  • Trailer Package
    • Trailer Hitch
    • Trailering hitch platform
    • 2-inch receiver (w/ 4- and 7-pin connectors)
    • 7-wire electrical harness
    • Automatic locking rear differential
    • Hitch Guidance
  • GMC Pro Safety
    • Forward Collision Alert
    • Following Distance Indicator
    • Front Pedestrian Braking
    • Lane Keep Assist w/ Lane Departure Warning
    • Automatic Emergency Braking
    • Buckle-to-Drive
    • Safety Alert Seat

Interior Features

  • Steering wheel-mounted controls
  • Front bucket seats
  • Perforated leather seat trim (front)
  • 10-way adjustable front seats
  • Heated/ventilated front seats
  • Underseat rear storage
  • Heated outboard rear seats
  • Heated steering wheel


  • Standard GMC Premium Infotainment System
  • 13.4-inch touchscreen interface
  • Google Built-In
  • Wireless Apple CarPlay/Android Auto
  • Charging/data USB ports

2022 GMC Sierra AT4X Features & Equipment

The AT4X trim is the latest member of the truck’s lineup. Like the preceding AT4 trim, the AT4X strikes a unique balance between off-road capability and a refined interior experience – just with more of both elements. One of the most notable differences between the 2022 Sierra AT4 and AT4X is the available engine lineup. The new AT4X trim grade is equipped with the 6.2-litre engine and the 10-speed automatic transmission. Some of the other features that are exclusive to the 2022 Sierra AT4X include:

  • Sierra-first use of Multimatic DSSV spool-valve dampers
  • Front/rear e-locking differentials
  • Heated/ventilated 16-way adjustable front seats
  • 12-speaker Bose Premium audio system

Additionally, the interior of the 2022 Sierra AT4X consists of Obsidian Rush upholstery, featuring full-grain leather seats, technical grain leather accents, and authentic Vanta ash woodgrain trim.

The best way to see the differences between the 2022 Sierra AT4 and Sierra AT4X is to make an appointment with a Terra Nova GMC Buick product expert, today.