2024 GMC Sierra HD AT4X

GMC first elevated key off-road truck segments with the premium and capable Sierra 1500 AT4X and Canyon AT4X. Now, GMC announced the next step with the first-ever 2024 GMC Sierra HD AT4X - featuring the Sierra HD AT4X AEV Edition - a truck that enables adventurers to go further while still having the towing capability essential for heavy duty haulers.

The Sierra HD AT4X bolsters GMC's lineup of premium off-road trucks, balancing increased off-road capability, smooth on-road handling, offering the most trailering technology in its class and first-class luxury and comfort features.

Extreme AEV Edition

The available AT4X AEV Edition adds robust stamped steel bumpers with integrated recovery points and front winch capability which provide additional driver confidence and protection. It also features heavy duty steel skid plates that help keep vital components such as the steering gear and transfer case protected on the trail. Additional features include unique 18-inch Salta wheels and unique exterior badging and interior cues.

Heavy Duty capability: Turbocharged pulling power

In addition to the standard 6.6L gas engine, the new AT4X offers the turbocharged pulling power of the available 6.6L Duramax Turbo-Diesel. Enhanced for 2024, it will deliver 470 horsepower and 975 lb-ft of torque, offering more power across the entire operating speed range. Both engines are paired with an Allison 10-speed automatic transmission, which is designed to optimize engine power, torque and efficiency.

Confidence-inspiring trailering tech

Along with the rest of the 2024 Sierra HD lineup, the new AT4X offers the most trailering assistance technologies in the heavy-duty class as well as the available ProGrade Trailering System. It includes a suite of available intelligent assistance technologies designed to help streamline the hitching and towing process, with integrated tools that can help enhance customers' safety and confidence, including available enhanced, industry-first Transparent Trailer View for Gooseneck and Fifth Wheel Trailering, available Trailer Side Blind Zone Alert and new, available Adaptive Cruise Control with Trailering. Additionally, there are up to 14 available camera views including Hitch View, Bed View with Zoom and Bed Hitch Guidance, and Rear Side View with Trailer Length Indicator.

First-class interior luxury and comfort

The first-ever Sierra HD AT4X offers the luxurious appointments and comfort in a premium, off-road-capable HD pickup, with the exclusive Obsidian Rush interior that features power massaging front seats and full-grain leather-wrapped seats throughout as well as authentic Vanta Ash wood décor and 12-speaker Bose® Premium Series audio system with Centerpoint surround technology. The AEV Edition also features the AEV logo on the front-seat head restraints and unique AEV-branded floor liners. The centerpiece of the new cabin is an all-new, tablet-style 13.4-inch-diagonal infotainment touchscreen. It is complemented by a 12.3-inch-diagonal configurable driver information center and a 15-inch-diagonal head-up display. Together, they provide customers incredible levels of personalization and intuitive engagement.