2026 GMC Sierra 2500HD AT4 Crew Cab 4WD

Discover the ultimate in power, capability, and refined comfort with the 2026 GMC Sierra 2500HD AT4. This exceptional truck is engineered to conquer any terrain, while delivering a driving experience that will exceed your expectations. - Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque - 10-speed automatic transmission and 4WD for unparalleled performance - Power retractable assist steps with LED lighting - Engine block heater for cold-weather operation - 220-amp alternator for reliable electrical power - Heavy-duty 80-amp battery for dependable starting The Sierra 2500HD AT4 is more than just a workhorse it's a premium off-road companion that pampers you with uncompromising luxury. Indulge in the Bose premium 7-speaker sound system, wireless charging, and a host of advanced technology features that keep you connected and in control. Elevate your driving experience with the AT4 Preferred Package, which includes a power sliding rear window, universal home remote, and roof marker lamps. The X31 Off-Road Package adds Hill Descent Control and an enhanced suspension for unmatched capability on the trail. Safety is paramount in the Sierra 2500HD AT4, with features like Forward Collision Alert, Automatic Emergency Braking, and Lane Departure Warning to give you peace of mind on every journey. The Bed View Camera and Trailer Cam Provisions make towing a breeze, while the Trailer Side Blind Zone Alert helps you maneuver with confidence. Whether you're conquering the great outdoors or tackling your toughest jobs, the 2026 GMC Sierra 2500HD AT4 is the ultimate expression of power, technology, and refined luxury. Experience the difference for yourself and schedule a test drive today.

Additional Information

AT4 Preferred Package,Preferred Equipment Group 4SB,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,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,Bumpers: body-color,Front License Plate Kit,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,Power-Retractable Black Assist Steps,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,HD Surround Vision,Heated steering wheel,Illuminated entry,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