2026 GMC Sierra 2500HD AT4 Crew Cab 4WD

*Please inquire for a personalized Video Walk-Around of this vehicle! Nationwide shipping available!* This 2026 GMC Sierra 2500HD AT4 is a powerful and capable truck that's ready to take on any challenge. With its impressive Duramax 6.6L V8 Turbodiesel engine, 10-speed automatic transmission, and 4-wheel drive, this truck is built to handle even the toughest jobs with ease. AT4 Preferred Package AT4 Premium Plus Package Black Badging Package Gooseneck/5th Wheel Prep Package Hitch Package Max Trailering Package Preferred Equipment Group 4SB Snow Plow Prep/Camper Package Technology Package X31 Off-Road Package The Sierra 2500HD AT4 is packed with premium features, including a Bose Premium 7-Speaker Sound System, a 15-inch Multicolor Head-Up Display, and a Trailer Cam Provisions and Trailer Viewing Software. The interior is equally impressive, with heated and ventilated front seats, a heated steering wheel, and a power driver's seat with memory. When it comes to capability, this truck delivers. The Duramax 6.6L V8 Turbodiesel engine provides an incredible 470 horsepower and 975 lb-ft of torque, making it a true workhorse. The X31 Off-Road Package, which includes an off-road suspension, hill descent control, and more, ensures that you can tackle any terrain with confidence. But this truck isn't just about power and capability - it's also packed with advanced safety features, including Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert. With the Hitch Package and the in-Vehicle Trailering System App, you'll have all the tools you need to tow with confidence. Whether you're hauling a heavy load, tackling off-road adventures, or just need a reliable and capable daily driver, the 2026 GMC Sierra 2500HD AT4 is the perfect choice. Visit our showroom today to take this impressive truck for a test drive and experience the power and versatility for yourself. Chevrolet GMC of Mount Vernon provides peace of mind with our Complimentary LIFETIME ENGINE/MOTOR WARRANTY included on a qualifying New or Pre-Owned vehicle purchase! Inquire for eligibility. Want a Video Walk-Around? Nationwide shipping available! We carry all makes and models. We have other vehicles with Apple CarPlay, Android Auto, Heads Up Display, Lane Departure System, Blind Spot Monitor, Heated Steering Wheel, Remote Start, Navigation, Rear Entertainment System, DVD Player, 3rd Row Seats, Backup Camera, Panoramic Sunroof, Bluetooth, Hands-Free, Adaptive Cruise Control, Leather Seats, Keyless Entry, Heated Seats, Tow Hitch, 4-Wheel Drive and All-wheel Drive, Active Park Assist, 360 degree Surround View Camera, Power Liftgate, Third Row Seating, Keyless Entry. Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. Price includes: $1000 - Purchase Allowance. Exp. 04/30/2026

Additional Information

AT4 Preferred Package,AT4 Premium Plus Package,Black Badging Package,Gooseneck/5th Wheel Prep Package,Hitch Package,Max Trailering Package,Preferred Equipment Group 4SB,Snow Plow Prep/Camper Package,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,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 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,Black GMC Emblems,Black Sierra Nameplates,Body Color Wheel Arch Moldings,Bumpers: body-color,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,Off-Road High Clearance Step,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,1st and 2nd Rows All-Weather Floor Liners,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,Upfitter Switch Kit (5),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