New 2026 GMCSierra AT4

Equipment
Turn heads on and off the pavement in this 2026 GMC Sierra 2500 AT4, finished in Onyx Black and equipped with a strong lineup of premium comfort, advanced technology, and off-road capability.

Inside, you'll find a thoughtfully designed cabin with leather seating, heated and ventilated front seats, heated rear outboard seats, a heated steering wheel, wireless charging, and a Bose premium sound system. Wireless Apple CarPlay and Android Auto integration help keep your favorite apps and contacts within easy reach, while the power sunroof adds an open-air feel to every drive.

Built for capability, this Sierra AT4 features the X31 Off-Road Package, ProGrade Trailering System, gooseneck/5th-wheel prep package, trailer camera provisions, hitch package, spray-on GMC bedliner, rear wheelhouse liners, and bed-mounted power outlet. Power-retractable black assist steps provide convenient access while maintaining the truck's bold appearance.

Technology and driver-assistance features include HD Surround Vision, adaptive cruise control, Trailer Side Blind Zone Alert, Rear Cross Traffic Alert, Lane Departure Warning, Safety Alert Seat, front and rear park assist, and a bed view camera to help enhance visibility and awareness.

Additional highlights include remote start, keyless open and start, a power sliding rear window, rain-sensing wipers, LED cargo area lighting, roof marker lamps, all-weather floor liners, SiriusXM capability, and a universal home remote.

With its combination of premium amenities, advanced trailering technology, and AT4 off-road capability, this GMC Sierra 2500 is ready for tough jobs, weekend adventures, and everything in between.

Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of included equipment with the dealer prior to purchase.

Packages
AT4 Premium Plus Package: Power Sunroof; Technology Package; Power-Retractable Black Assist Steps. Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Floor-Mounted Center Console; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners. AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. Power-Retractable Black Assist Steps. Technology Package. Power Sunroof. Gooseneck/5th Wheel Prep Package. Onyx Black. Hitch Package. 1st and 2nd Rows All-Weather Floor Liners. LED Smoked Amber Roof Marker Lamps. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**