Why Is the GMC Yukon AT4 Worth Buying?

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• Off-Road Hardware → High-approach-angle front fascia, front skid plate, red recovery hooks, and 20-inch all-terrain-tire wheels.
• Suspension → Magnetic Ride Control standard, reading the road up to 1,000 times per second; Air Ride Adaptive Suspension available.
• Powertrain Choice → Standard 5.3-liter V-8, available 6.2-liter V-8, and available Duramax 3.0-liter Turbo-Diesel, all with a 10-speed automatic.
• Space → Up to eight seats and up to 122.8 cubic feet of cargo volume; the XL body extends that to 144.5.

Does the Yukon AT4 offer genuine off-road mechanical enhancements or merely cosmetic accents? This rugged vehicle occupies a specific place in GMC’s full-size SUV ladder. It sits above the Elevation and alongside the Denali trims, but it’s the one built around off-pavement hardware rather than ornament. The differences are mechanical, not cosmetic. Understanding what this trim actually adds and where it differs from the AT4 Ultimate above it makes it far easier to judge whether it suits the way you actually drive.

What Makes the AT4 an Off-Road Trim

The AT4 designation is backed by equipment rather than badging. A high-approach-angle front fascia reshapes the leading edge so the SUV clears obstacles more readily, while a front skid plate shields vulnerable components underneath. Red recovery hooks and 20-inch wheels wrapped in all-terrain tires complete the exterior hardware. 

Magnetic Ride Control comes standard, reading the road surface up to 1,000 times per second and adjusting damping in response. Four-corner Air Ride Adaptive Suspension and the Active Response 4WD (Four-wheel drive) system are available rather than standard.

• Front fascia: High approach angle with front skid plate
• Recovery hooks: Red, front-mounted
• Wheels and tires: 20-inch machined and painted, all-terrain tires
• Magnetic Ride Control: Standard on every AT4
• Assist steps: Standard; power-retractable on AT4 Ultimate

Yukon AT4 Engine Options and Output

Three engines are offered, and the choice comes down to how you use the vehicle. The standard 5.3-liter V-8 handles daily driving and moderate hauling without complaint. The available 6.2-liter V-8 delivers the highest horsepower of the three. 

The available Duramax 3.0-liter Turbo-Diesel inline-six produces the most torque and delivers it low in the rev range, which suits sustained pulling. All three pair with a 10-speed automatic transmission. Trailering capability varies by engine, drivetrain, and equipment, and reaching the maximum for any configuration requires the Max Trailering Package.

Seating and Cargo Space

Seating capacity depends on which of the two off-road trims you choose, and the distinction is often blurred. The AT4 seats up to eight using a second-row bench. The AT4 Ultimate substitutes power-release second-row bucket seats, which brings capacity to seven while easing third-row access. 

Cargo volume, by contrast, follows body length rather than trim level. The standard-wheelbase body offers 25.5 cubic feet behind a power-folding third row and up to 122.8 cubic feet with the rear rows stowed. The XL body extends those two measurements to 41.5 and 144.5 cubic feet, respectively.

Technology and Driver Assistance

A 16.8-inch diagonal Premium GMC Infotainment System with Google built-in anchors the dashboard, paired with an 11-inch diagonal Driver Information Center specific to these off-road trims. A multicolor 15-inch diagonal Head-Up Display is available, as are up to 13 camera views, including HD Surround Vision. 

Super Cruise hands-free driver-assistance technology is available on the AT4 through option packaging and is standard on the AT4 Ultimate. More than 17 safety and driver assistance features are standard, and OnStar connected services are available as well.

Frequently Asked Questions

Q: How many passengers does the AT4 seat?

A: Up to eight. The standard second-row bench seats three across, giving you three full rows. Selecting the AT4 Ultimate, or adding second-row bucket seats to the AT4, reduces capacity to seven in exchange for easier third-row access.

Q: Which engine should I choose?

A: For most Yukon AT4 buyers, the standard 5.3-liter V-8 is enough. Choose the 6.2-liter V-8 for the highest horsepower, or the Duramax turbo-diesel for towing regularly or covering long highway distances and for low-end torque.

Q: What is the difference between AT4 and AT4 Ultimate?

A: The AT4 Ultimate standardizes several items the AT4 offers optionally or not at all, including the 6.2-liter V-8, Air Ride Adaptive Suspension, Super Cruise, a panoramic sunroof, 16-way massaging front seats, and second-row bucket seats in place of the bench.

Find a GMC Yukon AT4 Near You

Comparing the Yukon AT4 against the AT4 Ultimate is easiest with both in front of you. Our team can walk you through package availability and confirm the trailering rating for the exact build you have in mind. Browse our inventory or schedule a test drive today.