This 2026 GMC Sierra 3500HD AT4 represents a comprehensive solution for those who demand capability, comfort, and advanced technology in a heavy-duty truck.- Duramax 6.6L V8 Turbodiesel with 470 hp and 975 lb-ft of torque- 10-Speed Automatic transmission with 4WD- AT4 Premium Plus Package with power sunroof and Technology Package- Gooseneck/5th Wheel Prep Package for heavy hauling- Trailer Tire Pressure Monitor Sensors with up to 6-wheel monitoring capability- Black power-retractable assist steps with LED lighting- HD Surround Vision with bed view camera and trailer camera provisions- Multicolor 15 diagonal Head-Up Display- Bose Premium 7-Speaker Sound System with SiriusXM 360L- Premium GMC Infotainment System with wireless phone projection- Heated and ventilated perforated leather front seats with 10-way power adjustment- Heated rear seats and heated steering wheel- Off-Road High Clearance step and X31 Off-Road Package- Wireless charging and dual-zone automatic climate control- Ultrasonic front and rear park assist with Hitch GuidanceThe Sierra 3500HD AT4 delivers substantial towing and hauling capabilities through its powerful Duramax diesel engine paired with a 10-speed automatic transmission. The truck's engineering ensures durability and performance, supported by features such as the engine block heater, 220-amp alternator, and heavy-duty battery for reliability in demanding conditions.Technology integration throughout the cabin enhances both safety and convenience. The Head-Up Display projects critical information directly into your line of sight, while the surround vision system provides comprehensive awareness around the truck. Automatic emergency braking, lane departure warning, and trailer side blind zone alert contribute to confident operation whether you're on the highway or navigating jobsites.The AT4 Premium Plus Package elevates the ownership experience with premium materials and convenience features. Perforated leather seating with ventilation keeps you comfortable during long drives, while the power sunroof adds a refined touch. The wireless phone projection and SiriusXM 360L satellite radio ensure you remain connected and entertained.Off-road capability is built into this model through the X31 Off-Road Package, which includes the high-clearance step and specialized suspension tuning. The 2-speed active transfer case provides the flexibility to handle various terrain conditions confidently.The Gooseneck/5th Wheel Prep Package positions this truck as an ideal platform for serious hauling applications, with a hitch platform, bed-mounted harness, and stamped holes ready for your equipment. Pair this with the trailer tire pressure monitoring system, and you gain real-time insights into your trailer's condition during transit.Contact us to schedule a showing and experience how this Sierra 3500HD AT4 can meet your truck requirements. Price includes Price includes Dealer discount and GM rebates that all customers qualify for:$1000 - Buick & GMC Consumer Cash Program. Exp. 08/31/2026

Options:

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 Front Windows with Passenger Express Up/Down,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 Services capable,Front anti-roll bar,Front wheel independent suspension,Keyless Open and Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Sunroof,Pickup Bed,Brake assist,Electronic Stability Control,Lane Departure Warning System,Exterior Parking Camera Rear,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-Hour Battery,Auto-dimming door mirrors,Bed Mounted Assist Handle,Black Power-Retractable Assist Steps,Bumpers: body-color,Front License Plate Kit,Gloss Black Header and Grille Insert Bars,Heated door mirrors,IntelliBeam Automatic High Beam on/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Off-Road High Clearance Step,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,Auto-Dimming Inside Rearview Mirror with Camera,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 reading lights,GMC Premium 13.4 inch Diagonal Information Display,HD Surround Vision,Heated steering wheel,Illuminated entry,Multicolor 15 inch Diagonal Head-Up Display,Outside temperature display,Overhead console,Passenger vanity mirror,Premium Front Floor Liners with Removable Carpet Insert,Premium Rear Floor Liners with Removable Carpet Insert,Rear Cross Traffic Alert,Rear reading lights,Rear seat center armrest,Safety Alert Seat,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Camera Provisions,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 Front Leather Seat Trim,Power passenger seat,Split folding rear seat,Ventilated Driver and Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance with Hitch View,Trailer Tire Pressure Monitor Sensors,Alloy wheels,Wheels: 20 inch High Gloss Black 8 Spoke Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Sliding Rear Window with Defogger,Rain sensing wipers,Variably intermittent wipers,ASSIST STEPS POWER-RETRACTABLE BLACK includes LED lighting,REAR CAMERA MIRROR inside rearview auto-dimming with full camera display,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).,LICENSE PLATE KIT FRONT,TIRES LT275/65R20 ALL-TERRAIN BLACKWALL (STD),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),TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display,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.),WINTER GRILLE COVER,TRAILER TIRE PRESSURE MONITOR SENSORS includes set of 4 sensors. Sensor functionality requires (UET) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories,WINDOW POWER REAR SLIDING with rear defogger,UNIVERSAL HOME REMOTE,ENGINE BLOCK HEATER,ASSIST HANDLE SIDE (bed mounted; fold out grab handle for extra support),SUNROOF POWER,AT4 PREFERRED EQUIPMENT GROUP includes standard equipment,LAMPS SMOKED AMBER ROOF MARKER (LED),AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package (CF5) power sunroof (CWM) Technology Package and (VXW) Off-Road High Clearance step LPO,REAR AXLE 3.42 RATIO,GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS,EXHAUST BRAKE,WHEELS 20 (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS 8 SPOKES (STD),ONYX BLACK,AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote (A48) rear sliding power window and (U01) Roof Marker Lamps,ALTERNATOR 220 AMPS,SEATS FRONT BUCKET WITH CENTER CONSOLE (STD),MULTICOLOR 15 DIAGONAL HEAD-UP DISPLAY,JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEATING SURFACES,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-Terrain,Tires - Rear All-Terrain,Conventional Spare Tire,Bed Liner,Daytime Running Lights,LED Headlights,Automatic Highbeams,Fog Lamps,Heated Mirrors,Power Mirror(s),Integrated Turn Signal Mirrors,Power Folding Mirrors,Intermittent Wipers,Variable Speed Intermittent Wipers,Rain Sensing Wipers,Privacy Glass,Integrated Tailgate Step,AM/FM Stereo,Navigation System,MP3 Capability,Bluetooth Connection,Auxiliary Audio Input,Smart Device Integration,Satellite Radio,Requires Subscription,Satellite Radio,Requires Subscription,Premium Sound System,Bluetooth Connection,Bluetooth Connection,Smart Device Integration,WiFi Hotspot,Bucket Seats,Leather Seats,Power Driver Seat,Driver Adjustable Lumbar,Power Passenger Seat,Passenger Adjustable Lumbar,Pass-Through Rear Seat,Rear Bench Seat,Heated Front Seat(s),Heated Front Seat(s),Cooled Front Seat(s),Heated Rear Seat(s),Mirror Memory,Seat Memory,Floor Mats,Floor Mats,Heated Steering Wheel,Adjustable Steering Wheel,Steering Wheel Audio Controls,Tire Pressure Monitor,Power Windows,Power Windows,Power Door Locks,Remote Engine Start,Keyless Entry,Power Door Locks,Keyless Start,Cruise Control,Adaptive Cruise Control,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,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,Cross-Traffic Alert,Blind Spot Monitor,Lane Departure Warning,Front Collision Warning,Front Collision Mitigation,Driver Restriction Features,Tire Pressure Monitor,Telematics,Navigation from Telematics,Requires Subscription