What Does the "AT4" Stand For in the 2022 GMC Sierra AT4? 

Perhaps you’ve seen the latest 2022 GMC Sierra 1500 AT4. 

It’s the latest incantation of the off-roadingpickup truck that’s been a favorite of pickup truck enthusiasts for the last three years. 

So what does the AT4 in the 2022 GMC Sierra 1500 AT4 model name stand for? And what’s included in a Sierra pickup with the AT4 package?   

What does AT4 stand for?

All-Terrain 4WD is what the AT4 in the GMC Sierra AT4 refers to. 

It debuted as the model in between the SLT and the Denali in the 2019 GMC Sierra 1500. 

It was made specifically as an off-road vehicle, complete with all the features an off-road enthusiast might desire in a pickup. 

This year, the 2022 GMC Sierra 1500 AT4X is now included in the trim, expanding it even further. 

The GMC AT4 is the GMC Sierra's off-roading variant, including all the features that off-road aficionados could need or require in their pickup trucks.  

A 3.0 litre I6 diesel engine powers the 2022 GMC Sierra 1500 AT4. 

This, according to GMC, delivers the best-in-class 277 horsepower and 460 lb-ft of torque. 

Additionally, it boasts automatic locking rear differentials, a 2-speed transfer case, and 18-inch tyres with a 2-inch off-road clearance.   

Additionally, it incorporates a skid plate to prevent damage to the truck's underbody when navigating rocky terrain.