The 2026 GMC Sierra 2500HD AT4X is a heavy-duty truck engineered for those who demand capability, comfort, and control in equal measure.- 6.6L V8 Duramax Turbodiesel engine with 470 hp and 975 lb-ft of torque- 10-Speed Automatic transmission with 4WD and 2-Speed Active Transfer Case- Bose Premium Series 12-Speaker audio system with SiriusXM 360L- Premium GMC Infotainment System with Apple CarPlay and Android Auto integration- 15-inch Multicolor Head-Up Display for enhanced driving awareness- Gooseneck/5th Wheel Prep Package with Hitch Guidance and in-Vehicle Trailering System App- HD Surround Vision with Bed View Camera and dual Trailer Camera Provisions- Automatic Emergency Braking, Forward Collision Alert, and Lane Departure Warning- 16-Way Power Driver and Passenger Seats with lumbar support and heating/ventilation- Full Grain Leather seat trim with heated rear outboard seats- Power Moonroof with deep-tinted glass and rain-sensing wipers- Wireless smartphone charging with wireless phone projection capability- Hill Descent Control and Off-Road Suspension for challenging terrain- Spray-on pickup bedliner with GMC Logo and 120-Volt bed-mounted power outletThis truck combines serious work capability with refined daily-use comfort. The Duramax diesel engine delivers robust torque for hauling and towing, while the 2-Speed Active Transfer Case and off-road suspension prepare you for demanding job sites or weekend adventures. The AT4X trim focuses on capability through genuine utility features designed with professional contractors and serious truck enthusiasts in mind.The cab prioritizes both driver and passenger well-being. Heated and ventilated front seats with 16-way power adjustability keep you comfortable whether you're managing a full workday or taking a long drive. The full grain leather interior and overhead console create an environment that doesn't feel like compromise this is a truck that works as hard as it needs to without sacrificing the environment where you spend your time.Technology serves your needs without distraction. The Head-Up Display keeps essential information in your sightline, while the trailers system app and Hitch Guidance with camera provisions transform complex towing scenarios into straightforward operations. The Surround Vision with multiple camera angles gives you confidence in any situation, and safety features like Automatic Emergency Braking and Rear Cross Traffic Alert operate continuously to help protect you and your cargo.The beige exterior of this Sierra 2500HD projects the professional appearance appropriate for job sites or weekend pursuits. The 18-inch machined aluminum wheels with high-gloss black accents, gloss black grille trim, and LED lighting package establish a refined aesthetic that distinguishes this truck from standard models.Every detail on the 2026 GMC Sierra 2500HD AT4X reflects purposeful engineering. Whether you're managing commercial responsibilities or exploring rugged terrain, this truck delivers the performance, comfort, and technology to handle what's ahead. We invite you to experience this truck firsthand in our showroom.

Options:

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,220-Amp Alternator,Engine Block Heater,Exhaust Brake,Heavy-Duty 80 Amp Battery,Auto-dimming door mirrors,Bed Mounted Assist Handle,Front License Plate Kit,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,Winter Grille Cover,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 inch 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 inch 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,ALTERNATOR 220 AMP,AT4X PREFERRED EQUIPMENT GROUP includes standard equipment,OBSIDIAN RUSH FULL GRAIN LEATHER SEAT TRIM,GVWR 11 350 LBS. (5148 KG),TRANSMISSION 10-SPEED AUTOMATIC,ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.),GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).,WINTER GRILLE COVER,ENGINE BLOCK HEATER,ASSIST HANDLE SIDE (bed mounted; fold out grab handle for extra support),AUDIO SYSTEM 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE includes color touch-screen multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD),SEATS FRONT BUCKET with center console (STD),LICENSE PLATE KIT FRONT INCANDESCENT LIGHTING,REAR AXLE 3.42 RATIO,WHEELS 18 (45.7 CM) MACHINED ALUMINUM WHEEL with High Gloss black accents (STD),EXHAUST BRAKE,COASTAL DUNE,Lane Departure Warning,Front Collision Mitigation,Front Collision Warning,Automatic Highbeams,Tow Hitch,Running Boards/Side Steps,Keyless Start,Locking/Limited Slip Differential,Four Wheel Drive,Tow Hooks,Power Steering,ABS,4-Wheel Disc Brakes,Aluminum Wheels,Tires - Front All-Season,Tires - Rear All-Season,Conventional Spare Tire,Sun/Moonroof,Generic Sun/Moonroof,Running Boards/Side Steps,Power Retractable Running Boards,Bed Liner,Daytime Running Lights,Automatic Highbeams,Fog Lamps,Heated Mirrors,Power Mirror(s),Integrated Turn Signal Mirrors,Power Folding Mirrors,Privacy Glass,Intermittent Wipers,Variable Speed Intermittent Wipers,Rain Sensing Wipers,Integrated Tailgate Step,AM/FM Stereo,Navigation System,MP3 Capability,Bluetooth Connection,Auxiliary Audio Input,Smart Device Integration,Requires Subscription,Satellite Radio,Requires Subscription,Premium Sound System,Premium Sound System,Bluetooth Connection,Bluetooth Connection,Smart Device Integration,WiFi Hotspot,Bucket Seats,Leather Seats,Rear Bench Seat,Power Driver Seat,Driver Adjustable Lumbar,Seat-Massage,Power Passenger Seat,Passenger Adjustable Lumbar,Seat-Massage,Heated Front Seat(s),Heated Front Seat(s),Cooled Front Seat(s),Heated Rear Seat(s),Mirror Memory,Seat Memory,Floor Mats,Floor Mats,Leather Steering Wheel,Heated Steering Wheel,Steering Wheel Audio Controls,Adjustable Steering Wheel,Heads-Up Display,Power Windows,Power Windows,Power Windows,Rear Defrost,Sliding Rear Window,Power Door Locks,Keyless Entry,Power Door Locks,Keyless Start,Remote Engine Start,Cruise Control,Adaptive Cruise Control,Universal Garage Door Opener,Security System,MP3 Capability,Auxiliary Audio Input,MP3 Capability,Auxiliary Audio Input,Climate Control,Multi-Zone A/C,A/C,Rear Defrost,Auto-Dimming Rearview Mirror,Back-Up Camera,Front Collision Mitigation,Front Collision Mitigation,Front Collision Warning,Traction Control,Stability Control,Daytime Running Lights,Daytime Running Lights,Driver Air Bag,Passenger Air Bag,Front Side Air Bag,Front Head Air Bag,Rear Head Air Bag,Passenger Air Bag Sensor,Telematics,Requires Subscription,Rear Parking Aid,Back-Up Camera,Aerial View Display System,Back-Up Camera,Front Collision Warning,Lane Departure Warning,Cross-Traffic Alert,Blind Spot Monitor,Driver Restriction Features,Tire Pressure Monitor,Navigation System,Telematics,Requires Subscription