Pre-Owned 2025 GMC Sierra 2500HD AT4

The 2025 GMC Sierra 2500HD AT4 is a heavy-duty crew cab pickup designed to deliver high capability and advanced features for demanding tasks. Powered by a formidable Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission and 4WD, this truck combines strength with sophisticated technology.

This truck is ideal for buyers needing robust towing and hauling capability, advanced safety systems, and a comfortable, feature-rich cabin. The Sierra 2500HD AT4 stands out for professionals who require consistent power and durability, as well as for families or outdoor enthusiasts who value versatility on and off the job site. In regions like Bastrop, TX, where weather and terrain can be unpredictable, its 4WD, Off-Road Suspension, and snow plow prep features ensure reliable performance for a variety of local conditions and seasonal tasks.

With the Duramax 6.6L V8 Turbodiesel engine, this truck delivers exceptional torque and pulling power, making it a trusted partner for towing trailers or carrying heavy loads. The 10-speed automatic transmission allows for smooth gear transitions, optimizing performance during both highway driving and slow-speed maneuvering. The off-road suspension helps maintain stability on rough terrain, while features such as Hill Descent Control and an Exhaust Brake add confidence in challenging driving scenarios. Whether hauling equipment or heading out for a long trip, the Sierra 2500HD AT4 is engineered for sustained comfort and control.

Safety in the Sierra 2500HD AT4 is advanced, with a suite of active technologies designed to protect occupants and support the driver. Automatic Emergency Braking and Forward Collision Alert provide immediate intervention to help avoid frontal impacts, while Lane Departure Warning helps keep the truck in its intended lane. The Following Distance Indicator keeps drivers aware of safe spacing, and Front Pedestrian Braking adds another layer of protection in urban or crowded settings. Rain sensing wipers, IntelliBeam Automatic High Beam On/Off, and the Buckle to Drive system further enhance daily safety and convenience.

The cabin features perforated leather-appointed front seats with heating and ventilation, dual-zone automatic temperature control, and a heated steering wheel for year-round comfort. The AT4 Preferred Package upgrades both style and functionality, while the Technology Package introduces an In-Vehicle Trailering System App and Hitch Guidance with Hitch View—perfect for streamlining the hitching process. The premium infotainment system includes Apple CarPlay and Android Auto, plus a seven-speaker audio setup and SiriusXM with 360L for entertainment and connectivity. Memory seat settings and 10-way power-adjustable seats with lumbar support provide personalized comfort for driver and passengers.

When compared to other heavy-duty trucks like the Ford F-250 Super Duty and Ram 2500, the Sierra 2500HD AT4 distinguishes itself with its combination of advanced trailering technology, upscale interior appointments, and robust off-road capability.

What are the key features of this truck? The Sierra 2500HD AT4 includes heated/ventilated front seats, a heated rear seat, premium infotainment, advanced trailering tech, and multiple safety systems. How does it perform in daily driving? The diesel engine and 10-speed transmission provide smooth, confident power delivery for towing and commuting alike.

To experience the 2025 GMC Sierra 2500HD AT4 and explore its features in person, contact Covert Chevrolet Bastrop at (512) 308-3161. Visit the dealership at 702 State Hwy 71, Bastrop, TX 78602 to schedule your test drive and get detailed answers to your questions from their knowledgeable team.