Meet the 2026 GMC Sierra 2500HD AT4, a heavy-duty truck engineered to handle demanding work while delivering the refinement you expect from GMC's premium lineup. This Sierra 2500HD AT4 arrives equipped with exceptional capability and comfort features: - Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission and 4WD - Max Trailering Package for enhanced pulling power and confidence - Gooseneck/5th Wheel Prep Package for serious hauling applications - X31 Off-Road Package with off-road suspension and hill descent control - AT4 Preferred Package with premium appointments and technology - Bose Premium 7-Speaker Sound System with SiriusXM 360L trial subscription - Premium GMC Infotainment System with Apple CarPlay and Android Auto integration - Advanced safety suite including automatic emergency braking, lane departure warning, and rear cross traffic alert - Multicolor 15-inch head-up display for critical information visibility - HD surround vision with bed view camera and trailer camera provisions - Heated and ventilated front seats with 10-way power adjustment and lumbar support - Perforated leather-appointed front seat trim - Spray-on pickup bedliner with GMC logo - Power sunroof and power sliding rear window with defogger - Wireless smartphone charging and dual-zone automatic climate control - 20-inch high-gloss black aluminum wheels The Sierra 2500HD AT4 combines workhorse capability with genuine luxury. The Duramax diesel engine delivers the torque and reliability you need, while the comprehensive technology package keeps you connected and informed. The AT4's specialized suspension and off-road features mean you're ready for terrain beyond the pavement. Premium leather seating, heated surfaces, and dual-zone climate control ensure every mile feels considered. Safety technologies including automatic emergency braking, surround view cameras, and intelligent lighting systems work quietly in the background to protect your investment and your peace of mind. With only 7,701 miles on the odometer, this Sierra 2500HD presents an exceptional opportunity to acquire a nearly new heavy-duty truck with full manufacturer backing. Every feature is ready to serve your needs immediately. The 2026 Sierra 2500HD AT4 represents genuine value for buyers who refuse to compromise on capability, technology, or quality. Whether your priorities center on professional hauling, weekend adventures, or simply commanding the road with confidence, this truck delivers across every measure. We invite you to experience this remarkable machine in our showroom and discover how its combination of strength, sophistication, and advanced features aligns with your vision of truck ownership.

Additional Information

AT4 Preferred Package,Gooseneck/5th Wheel Prep Package,Max Trailering Package,Preferred Equipment Group 4SB,Technology Package,X31 Off-Road Package,7 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium 7-Speaker Sound 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,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 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,High Idle Switch,Auto-dimming door mirrors,Bumpers: body-color,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,HD Surround Vision,Heated steering wheel,Illuminated entry,Inside Rearview Auo-Dimming Rear Camera Mirror,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,10-Way Power Driver Seat Adjuster with Lumbar,10-Way Power Passenger Seat Adjuster with Lumbar,Front Bucket Seats,Front Center Armrest,Heated 2nd Row Outboard Seats,Heated Driver and Front Outboard Passenger Seats,Heated front seats,Heated rear seats,Perforated Leather-Appointed Front Seat Trim,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,Alloy wheels,Wheels: 20" High Gloss Black 8 Spokes Aluminum,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