What Is AT4 Package?

Are you curious to know what is AT4 package? You have come to the right place as I am going to tell you everything about AT4 package in a very simple explanation. Without further discussion let’s begin to know what is AT4 package?

When it comes to tackling off-road adventures and traversing rugged terrains, having the right equipment can make all the difference. The AT4 package, offered by General Motors (GM) on select trucks and SUVs, is designed to enhance the off-road capabilities of these vehicles. In this blog, we will delve into what an AT4 package is, its features, and how it transforms these vehicles into formidable off-road machines.

What Is AT4 Package?

The AT4 package is an optional equipment package available on certain GM vehicles, primarily trucks and SUVs, such as the GMC Sierra and GMC Yukon. It is named after the AT4 trim level, which represents a rugged and off-road-oriented variant within the GM lineup.

Enhanced Off-Road Capabilities:

The AT4 package equips vehicles with a range of features and modifications specifically designed to enhance off-road performance. These enhancements typically include:

  1. Suspension Upgrades: The AT4 package often includes upgraded suspension systems, such as off-road-tuned shocks, increased ride height, and specialized dampers. These enhancements provide better ground clearance, improved articulation, and increased stability on uneven terrains.
  2. All-Terrain Tires: Vehicles equipped with the AT4 package come with specially designed all-terrain tires. These tires offer enhanced traction and grip on various surfaces, including mud, sand, and rocks, allowing drivers to confidently navigate challenging off-road environments.
  3. Skid Plates And Underbody Protection: Off-roading can expose vehicles to potential hazards, such as rocks, debris, and uneven terrain. The AT4 package often includes skid plates and underbody protection to shield vital components from damage and maintain the vehicle’s integrity during off-road adventures.
  4. Off-Road Driving Modes: Many vehicles with the AT4 package feature specialized off-road driving modes. These modes optimize the vehicle’s performance by adjusting throttle response, transmission shifts, and traction control systems to provide optimal power delivery and traction in off-road conditions.
  5. Exterior Design Elements: The AT4 package often includes distinctive exterior design elements, such as unique grille designs, aggressive front bumpers, and dark chrome or black accents. These visual enhancements give the vehicle a rugged and adventurous appearance.

Comfort And Technology:

While the primary focus of the AT4 package is off-road performance, it also incorporates comfort and technology features to enhance the overall driving experience. These may include premium interior materials, advanced infotainment systems, connectivity options, and driver-assistance features that ensure a comfortable and convenient ride both on and off the road.

Customizability And Availability:

The availability and specific features of the AT4 package can vary depending on the GM model and trim level. It is essential for prospective buyers to consult the manufacturer’s website or visit a dealership to explore the options available for their desired vehicle.


The AT4 package is an enticing option for off-road enthusiasts and adventure seekers looking to maximize the capabilities of their GM trucks and SUVs. With its specialized features, enhanced suspension, all-terrain tires, and other off-road enhancements, the AT4 package transforms these vehicles into formidable off-road machines, capable of conquering challenging terrains with confidence. Whether it’s navigating through rough trails, exploring remote locations, or simply embracing the thrill of off-roading, the AT4 package equips drivers with the tools they need to unlock the full potential of their vehicles.

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What Is Included In The AT4 Package?

The AT4 trim is designed for adventuring, which is why it comes equipped with all the best in off-road features, like hill descent control and hill start assist, a performance front skid plate, recovery hooks, and an Active Response four-wheel-drive system.

Is AT4 The Same As Z71?

The base engine comes with an eight-speed or 10-speed automatic transmission. The other engines come with only a 10-speed automatic transmission. The Trail Boss and the AT4 come loaded with similar off-road packages. The AT4’s package is called the X31, and the Trail Boss’s package is called the Z71.

What Does AT4 Mean On A Truck?

Image via Unsplash by Brad Killen. AT4 stands for All-Terrain 4WD. This is a trim level that GMC first introduced with the GMC Sierra 1500 back in 2019. It was a more premium trim and fell between the SLT and Denali versions. Now, the AT4 trim is available on other vehicles besides the Sierra 1500.

What Is The Difference Between A Denali And An AT4?

The main features separating the 2022 GMC Yukon Denali from the Yukon AT4 include price, performance capabilities, and features. While the AT4 costs less than the Denali, the Denali offers better horsepower and technology. Either way, you can’t go wrong with a Yukon.


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