New 2025 GMC Sierra 1500 AT4

Description for 2025 GMC Sierra 1500 AT4 Truck

The 2025 GMC Sierra 1500 AT4 is a full-size, off-road-capable truck that blends upscale interior refinement with serious trailering and terrain-handling capabilities. Powered by a 3.0L Duramax Turbo-Diesel inline-six engine paired with a 10-speed automatic transmission, this 4WD crew cab configuration is designed for those who require both towing confidence and daily comfort. Finished in Sterling Metallic with a Jet Black interior highlighted by Kalahari accents, the AT4 trim underscores a rugged yet premium personality.

This model is equipped with the AT4 Preferred and Premium Packages, enhancing both functionality and technology. The exterior features a distinctive Black Chrome grille, red recovery hooks, perimeter lighting, LED cargo area lighting, and Off-Road High Clearance Assist Steps. A spray-on bedliner with GMC logo, 120-volt power outlets in the bed and cabin, and rear wheelhouse liners all contribute to its work-ready and off-road-worthy design.

For trailering, the Sierra 1500 AT4 comes prepared with Hitch Guidance, Hitch View, an Integrated Trailer Brake Controller, and Trailer Camera Provisions. The In-Vehicle Trailering System App provides advanced monitoring and setup options, while Trailer Side Blind Zone Alert and Rear Cross Traffic Braking boost safety when maneuvering larger loads. These features are supported by the Trailering Package, ensuring robust towing capability for both recreation and jobsite demands.

Inside, the Sierra AT4 showcases a refined, tech-forward cabin. The front bucket seats are both heated and ventilated, and the second-row outboard seats are heated as well. A 15-inch multicolor head-up display projects key driving information directly into the driver's line of sight, while the HD Surround Vision and Rear Camera Mirror enhance visibility during low-speed driving and parking. The Bose Premium 7-speaker audio system, wireless charging pad, and available Wi-Fi hotspot capability support long hauls and daily commutes alike.

Additional comfort and convenience features include a power rake and telescoping steering column, power sliding rear window with defogger, universal home remote, dual-zone climate control, and multiple USB ports, including Type-C rear charging ports and console-integrated data connections. The system is anchored by a navigation-enabled infotainment unit and SiriusXM with 360L trial access.

The AT4 also includes advanced safety technologies such as Rear Pedestrian Detection, Ultrasonic Front and Rear Park Assist, and a Theft Deterrent System. Front rain-sensing wipers and premium floor liners with removable carpet inserts round out the all-weather readiness.

As with every new vehicle from Walt Massey, the 2025 GMC Sierra 1500 AT4 is backed by our 3 Day Money Back Guarantee. If you decide its not the right fit, you can return it to the dealership within three business days (by 5 p.m. CST) in like-new condition and under 300 miles. If it exceeds 300 miles, a fee of \$1.00 per additional mile will apply. This guarantee gives you confidence and flexibility in your vehicle purchase decision.

Do you want to explore how this AT4 compares to the Denali or Elevation trims?


Price includes: $2500 - Buick and GMC Purchase Loyalty Program. Exp. 06/02/2025 $2750 - Buick & GMC Consumer Cash Program. Exp. 06/02/2025