Meet the 2026 GMC Sierra 2500HD AT4, a meticulously prepared heavy-duty truck ready for work, adventure, or daily capability. - Apple CarPlay and Android Auto integration - Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission - 4WD with 2-speed active transfer case and off-road suspension - Bose Premium 7-Speaker Sound System with SiriusXM 360L trial subscription - Multicolor 15" head-up display and wireless phone projection - HD Surround Vision with bed view camera and trailer camera provisions - Heated and ventilated leather front seats with heated rear outboard seats - Power sunroof with deep-tinted glass - Spray-on pickup bedliner with GMC logo - 20" high-gloss black aluminum wheels - Wireless charging with multiple USB ports throughout - Ultrasonic park assist and trailer side blind zone alert - AT4 Premium Plus Package and X31 off-road package included This Sierra has been serviced, inspected, and fully detailed to ensure it arrives in pristine condition. Every system has been checked and the truck is ready for immediate use with confidence. The truck features the legendary Duramax 6.6L V8 Turbodiesel paired with a smooth 10-speed automatic transmission, delivering the power and capability you expect from a GMC heavy-duty truck. The 4WD system includes a 2-speed active transfer case and off-road suspension, giving you control whether you're on pavement or navigating challenging terrain. Technology enhances both capability and comfort throughout the cabin. The Multicolor 15" head-up display keeps critical information visible, while the premium GMC infotainment system with Apple CarPlay and Android Auto keeps you connected. The HD surround vision with bed view camera and trailer camera provisions makes towing and maneuvering straightforward, and the in-vehicle trailering system app provides real-time assistance. Comfort is addressed with heated and ventilated leather front seats featuring 10-way power adjustment with lumbar support. The heated rear outboard seats make cold-weather travel pleasant for passengers, and the power sunroof adds openness to the cabin. Storage is thoughtfully integrated with wireless charging, multiple USB charging ports, and a 120-volt bed-mounted power outlet for job-site tools. Gooseneck and fifth-wheel prep is included, making this truck ready for serious towing applications. The spray-on bedliner with GMC logo protects your investment, while the 20" high-gloss black aluminum wheels complement the black exterior and AT4 styling. This 2026 Sierra 2500HD AT4 represents the complete package: proven capability, modern technology, premium comfort, and truck-ready features in one well-maintained vehicle.

Additional Information

AT4 Preferred Package,AT4 Premium Plus Package,Gooseneck/5th Wheel Prep 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,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,Cruise Control,2-Speed Active Transfer Case,Heavy-Duty 80 Amp Battery,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,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,intermittent wipers,Rain sensing wipers,3.73 Rear Axle Ratio,Apple Carplay / Android Auto,Serviced, Inspected & fully detailed