The 2026 GMC Sierra 2500HD AT4X represents serious capability paired with refined comfort, built to handle demanding work while delivering a commanding presence on the road. - Duramax 6.6L V8 Turbodiesel engine with 10-Speed Automatic transmission and 4WD - Gooseneck/5th Wheel Prep Package for heavy-duty towing applications - Black Badging Package with gloss black door handles, grille, and GMC emblems - Bose Premium Series 12-Speaker System with SiriusXM and 360L Trial Subscription - Apple CarPlay and Android Auto integration with wireless phone projection - 16-Way Power Driver and Passenger Seat Adjusters with lumbar support - Full grain leather seat trim with heated and ventilated front seats - Heated rear seats and rear seat center armrest - Multicolor 15" Diagonal Head-Up Display for enhanced visibility - Off-Road Suspension with 2-Speed Active Transfer Case and Hill Descent Control - HD Surround Vision with Bed View Camera and trailer camera provisions - Ultrasonic Front and Rear Park Assist with Hitch Guidance and Hitch View - Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert - 18" Machined Aluminum wheels with high gloss black accents - Wireless charging, power moonroof, and universal garage door remote This truck is engineered for those who need genuine hauling prowess without compromise. The Duramax diesel engine delivers the torque and pulling capacity serious operators demand, while the 4WD system with off-road suspension handles challenging terrain with confidence. The gooseneck and fifth-wheel prep package positions this Sierra as a capable platform for heavy trailers and specialized equipment. Inside, the AT4X cabin reflects GMC's commitment to driver comfort and control. The 16-way power seating with lumbar adjustment and premium leather keeps you supported during long hours, while the heated and ventilated front seats provide year-round comfort. The impressive Bose audio system combined with the large head-up display and wireless connectivity means your technology stays current and intuitive. Safety and convenience features throughout demonstrate this truck's modern engineering. The HD surround vision system, trailer side blind zone alert, and automatic emergency braking give you confidence in any situation. Hitch guidance with dedicated trailer viewing software simplifies what used to be stressful maneuvering, while the in-vehicle trailering system app keeps you connected to your load. The Coastal Dune exterior finish combines with the black badging package to create an commanding appearance that matches the truck's serious capability. The spray-on bed liner with GMC logo protects your cargo area while maintaining the professional look AT4X owners expect. This 2026 Sierra 2500HD AT4X is ready to work and ready to impress. Whether you're managing a construction site, towing heavy equipment, or navigating remote terrain, this truck brings proven diesel reliability, thoughtful engineering, and genuine capability to every task. We invite you to visit our showroom and experience the command this truck offers.

Additional Information

Black Badging Package,Gooseneck/5th Wheel Prep Package,Preferred Equipment Group 4SG,12 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium Series 12-Speaker System,Premium audio system: Premium GMC Infotainment System,Radio: AM/FM Stereo with Premium GMC Infotainment System,SiriusXM with 360L Trial Subscription,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Heads-Up Display,Memory seat,Power driver seat,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Manual Tilt-Wheel/Telescoping Steering Column,Off-Road Suspension,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar,Front anti-roll bar,Front wheel independent suspension,Keyless Open and Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power moonroof,Power Sunroof,Pickup Box,Brake assist,Electronic Stability Control,Lane Departure Warning System,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Panic alarm,Security system,Unauthorized Entry Theft-Deterrent System,Speed control,2-Speed Active Transfer Case,Heavy-Duty 80 Amp Battery,Auto-dimming door mirrors,Black GMC Emblems,Black Sierra Nameplates,Gloss Black Door Handles,Gloss Black Header Grille and Grille Insert Bars,Heated door mirrors,IntelliBeam Automatic High Beam on/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Spray-on Pickup Bedliner with GMC Logo,Turn signal indicator mirrors,2 Charge-Only Rear USB Ports,2 Charge/Data USB Ports Inside Center Console,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera with Two Trailer Camera Provisions,Buckle to Drive,Compass,Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front Premium Floor Liners with Removable Carpet Insert,Front reading lights,Garage door transmitter,HD Surround Vision,Heated steering wheel,Illuminated entry,Inside Rearview Auo-Dimming Rear Camera Mirror,Leather steering wheel,Multicolor 15" Diagonal Head-Up Display,OnStar Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Cross Traffic Alert,Rear Premium Floor Liners with Removable Carpet Insert,Rear reading lights,Rear seat center armrest,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Cam Provisions and Trailer Viewing Software,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front and Rear Park Assist,Voltmeter,Wireless Charging,Wireless Phone Projection,16-Way Power Driver Seat Adjuster with Lumbar,16-Way Power Passenger Seat Adjuster with Lumbar,Front Bucket Seats,Front Center Armrest,Full Grain Leather Seat Trim,Heated 2nd Row Outboard Seats,Heated Driver and Front Outboard Passenger Seats,Heated front seats,Heated rear seats,Power passenger seat,Safety Alert Seat,Split folding rear seat,Ventilated Driver and Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance with Hitch View,in-Vehicle Trailering System App,Trailer Tire Pressure Monitor Sensors,Alloy wheels,Wheels: 18" Machined Aluminum with High Gloss Black Accents,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Front Passenger Windows with Express Up/Down,Power Sliding Rear Window with Defogger,Rain sensing wipers,Variably intermittent wipers,3.73 Rear Axle Ratio