2026 GMC Sierra 1500 AT4X Built to deliver extreme off-road capability without sacrificing premium luxury, this 2026 GMC Sierra 1500 AT4X combines serious trail-ready hardware with a high-end, technology-packed interior. With front and rear locking differentials, premium full-grain leather, a 15-inch Head-Up Display, Bose® audio, HD Surround Vision, and advanced trailering technology, the AT4X is equipped for demanding terrain and comfortable everyday driving. PERFORMANCE & OFF-ROAD CAPABILITY Driver-Selectable Full-Locking Front Differential Driver-Selectable Full-Locking Rear Differential Hill Descent Control Heavy-Duty Air Filter 220-Amp Alternator Engine Block Heater 4-Wheel Disc Brakes with ABS Electronic Stability Control Traction Control Black Sport Steps 18" Alloy Wheels INTERIOR & COMFORT Full-Grain Leather Seating 16-Way Power Driver Seat with Lumbar 16-Way Power Front Passenger Seat with Lumbar Heated & Ventilated Front Seats Heated Second-Row Outboard Seats Heated Steering Wheel Driver Memory Settings Dual-Zone Automatic Climate Control Power Rake & Telescoping Steering Column Power Sunroof Power Sliding Rear Window with Defogger Front & Rear Premium Floor Liners with Removable Carpet Inserts Remote Vehicle Start Keyless Open & Start TECHNOLOGY Premium GMC Infotainment System with Navigation Multicolor 15" Head-Up Display Bose® Premium 12-Speaker Sound System Apple CarPlay® & Android Auto SiriusXM® with 360L HD Surround Vision Bed View Camera MultiPro Tailgate Audio System by Kicker® OnStar® Services Capability Multiple USB & USB-C Ports Universal Home Remote Steering Wheel Audio Controls SAFETY & DRIVER ASSISTANCE Automatic Emergency Braking Forward Collision Alert Front Pedestrian Braking Lane Keep Assist with Lane Departure Warning HD Surround Vision Front & Rear Park Assist Rear Cross Traffic Braking Rear Pedestrian Detection Safety Alert Seat IntelliBeam® Automatic High Beams Rain-Sensing Windshield Wipers Advanced Airbag System Tire Pressure Monitoring System TRAILERING & TRUCK FEATURES Integrated Trailer Brake Controller Trailering Package In-Vehicle Trailering System App Hitch Guidance Hitch View Trailer Camera Provisions Trailer Side Blind Zone Alert Trailer Tire Pressure Monitoring System 120-Volt Bed-Mounted Power Outlet 120-Volt Interior Power Outlet LED Cargo Area Lighting Spray-On Bedliner with GMC Logo Rear Wheelhouse Liners AT4X HIGHLIGHTS Front & Rear Electronic Locking Differentials Full-Grain Leather Interior Heated & Ventilated Front Seats Heated Rear Seats 16-Way Power Front Seats 15" Multicolor Head-Up Display Bose® 12-Speaker Premium Audio HD Surround Vision Power Sunroof Black Sport Steps Kicker® MultiPro Tailgate Audio Advanced Trailering Technology Spray-On GMC Bedliner WHY BUY THIS SIERRA AT4X? The Sierra AT4X takes GMC's off-road formula to another level by combining legitimate trail hardware with Denali-level comfort and technology. Selectable front and rear locking differentials give it serious capability when the terrain gets difficult, while full-grain leather, heated and ventilated seating, Bose premium audio, a 15-inch Head-Up Display, power sunroof, and HD Surround Vision make it just as impressive on the road. Say Yes to Sullivan! Our Dealer Conveyance Fee is only $479!

Additional Information

Navigation System,Preferred Equipment Group 4SG,Trailering Package,12 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium Series with 12- Speaker System,MultiPro Tailgate Audio System by Kicker,Radio data system,Radio: Premium GMC Infotainment Audio 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 Interior Power Outlet,Driver Memory,Heads-Up Display,Memory seat,Power driver seat,Power Front Passenger Windows with Express Up/Down,Power Front Windows with Driver Express Up/Down,Power Rear Windows with Express Down,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Power Rake and Telescoping Steering Column,Speed-sensing steering,Traction control,X31 Off-Road Suspension,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 Door Locks,Power moonroof,Power Sunroof,Brake assist,Electronic Stability Control,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Perimeter Lighting,Panic alarm,Security system,Theft Deterrent System (unauthorized Entry),Speed control,Driver-Selectable Full-Locking Front Differential,Driver-Selectable Full-Locking Rear Differential,220 Amp Alternator,Block heater,Engine Block Heater,Heavy-Duty Air Filter,Auto-dimming door mirrors,Black Sport Step,Front License Plate Kit,Gloss Black Header with Dark Nickel Grille Insert Bars,Heated door mirrors,IntelliBeam Automatic High Beam on/Off,LED Cargo Area Lighting,Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Spray-on Pickup Bedliner with GMC Logo,2 Charge/Data USB Ports Inside Center Console,2 Type-C Charge-Only Rear USB Ports,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera,Buckle to Drive,Color-Keyed Carpeting Floor Covering,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,Genuine wood dashboard insert,Genuine wood door panel insert,HD Surround Vision,Heated steering wheel,Illuminated entry,Lane Keep Assist with Lane Departure Warning,Leather steering wheel,Multicolor 15" Diagonal Head-Up Display,OnStar Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Cross Traffic Braking,Rear Pedestrian Detection,Rear Premium Floor Liners with Removable Carpet Insert,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,Wi-Fi Hotspot Capable,Wireless Apple CarPlay/Wireless Android Auto,Wireless Charging,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 Seating,Heated front seats,Heated rear seats,Power passenger seat,Split folding rear seat,Ventilated Driver and Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance,Hitch View,in-Vehicle Trailering System App,Integrated Trailer Brake Controller,Trailer Tire Pressure Monitor System,Alloy wheels,Wheels: 18" x 8.5" Painted Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Sliding Rear Window with Rear Defogger,Rain sensing wipers,Variably intermittent wipers,3.23 Rear Axle Ratio