2026 GMC Sierra 3500HD AT4 Crew Cab 4WD

Experience the ultimate in power, capability, and comfort with the 2026 GMC Sierra 3500HD AT4. This exceptional heavy-duty pickup is engineered to conquer any terrain, while delivering a refined, premium driving experience. - AT4 Preferred Package - AT4 Premium Plus Package - Preferred Equipment Group 4SB - Technology Package - X31 Off-Road Package - Bose Premium 7-Speaker Sound System - Premium GMC Infotainment System - 3.73 Rear Axle Ratio - Off-Road Suspension - Spray-on Pickup Bedliner with GMC Logo - Heated and Ventilated Front Seats - Heated Rear Outboard Seats - Multicolor 15" Diagonal Head-Up Display - Wireless Charging - Trailer Camera Provisions Powered by the legendary Duramax 6.6L V8 Turbodiesel engine and a smooth-shifting 10-speed automatic transmission, this Sierra 3500HD AT4 delivers uncompromising performance and capability. With its advanced 4WD system and Off-Road Package, you'll conquer the toughest terrain with confidence. The premium interior of the Sierra 3500HD AT4 surrounds you in comfort and technology. Enjoy the rich, immersive sound of the Bose audio system, stay connected with the premium GMC Infotainment System, and let the head-up display keep vital information in your line of sight. Heated and ventilated front seats, along with heated rear outboard seats, ensure everyone rides in comfort. Safety and convenience are also priorities, with features like Forward Collision Alert, Automatic Emergency Braking, Rear Cross Traffic Alert, and Hitch Guidance with Hitch View. The Sierra 3500HD AT4 also boasts a premium, off-road-inspired exterior design with bold styling cues that command attention. Whether you're tackling tough jobs, exploring the great outdoors, or just enjoying the ride, the 2026 GMC Sierra 3500HD AT4 is the ultimate heavy-duty pickup. Experience the perfect blend of power, capability, and refinement. Visit our showroom today to take this exceptional vehicle for a test drive.

Additional Information

AT4 Preferred Package,AT4 Premium Plus 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,Heavy-Duty 80 Amp-Hour Battery,Auto-dimming door mirrors,Bumpers: body-color,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,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" Diagonal Information Display,HD Surround Vision,Heated steering wheel,Illuminated entry,Multicolor 15" 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,Alloy wheels,Wheels: 20" 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,3.73 Rear Axle Ratio