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2025 GMC Sierra 2500 HD Crew Cab

AT4 Pickup 4D 6 1/2 ft
14,551 miles
Includes:$10,485 in factory upgrades
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Why You’ll Love This Sierra 2500

Slotted above the SLT and below the AT4X and Denali tiers in the Sierra 2500 HD lineup, the AT4 brings confident capability with adventure-ready engineering and adaptive cruise control with trailering, complemented by a large infotainment touchscreen and the ProGrade Trailering System for enhanced control and convenience.

Duramax 6.6L Turbo-Diesel V8 Engine

Originally valued at $9,990, this engine delivers substantial power and torque for demanding tasks and heavy hauling.

Onyx Black

Originally valued at $495, this paint color provides a deep, lustrous finish that enhances the vehicle's exterior presence.

Off-road suspension

Provides enhanced capability and a smoother ride over varied terrain with specialized Rancho shocks.

Adventure-ready engineering

The AT4 trim is engineered for off-road capability and premium comfort, supporting demanding work and adventurous lifestyles.

Adaptive cruise control with trailering

Maintains a set following distance from the vehicle ahead, even when towing, reducing driver fatigue on long hauls.

Large infotainment touchscreen

Offers a prominent 13.4-inch diagonal touchscreen display for intuitive control of media, navigation and vehicle settings.

ProGrade trailering system

Simplifies towing with an in-vehicle app that provides checklists, trailer profiles and maintenance reminders for confident hauling.

Underbody skid plates

Protects critical underbody components from damage when navigating rough terrain.

MultiPro tailgate

Offers six versatile functions, including a standing workstation, load stop and easy access step, enhancing bed utility.

Heated and ventilated front seats

Provides year-round comfort with heated and ventilated perforated leather seating surfaces for the front occupants.

Capable & efficient

Provides 401 HP and 464 lb-ft through a 6.6L V8 gas engine, Allison 10-speed automatic transmission and 4WD, offering 18,500 lbs towing capacity with an Autotrac 2-speed transfer case for versatile capability.

GMC Sierra HD Pro Safety

Includes Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning and IntelliBeam auto high beams for enhanced driver awareness and accident prevention.

Wireless smartphone integration

Connects your smartphone wirelessly for seamless access to navigation, music and apps through Apple CarPlay and Android Auto.

20-inch high gloss black aluminum wheels

Large 20-inch high gloss black aluminum wheels provide a bold visual statement, complementing the vehicle's design with a distinctive and modern aesthetic.

This content is AI-generated and some details may not be 100% accurate. Refer to the details throughout this page for specific vehicle info.

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