7.2 KW Onboard Power
The 2026 GMC Sierra 2500HD AT4 brings together capability, comfort, and modern convenience designed for those who demand performance from their truck.
- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD and 2-Speed Active Transfer Case
- X31 Off-Road Package with off-road suspension and hill descent control
- Preferred Equipment Group 4SB with premium convenience features
- Spray-on pickup bed liner with GMC Logo
- Bose Premium 7-Speaker Sound System with SiriusXM 360L trial subscription
- Wireless phone projection and wireless charging
- Heated and ventilated front seats with 10-way power adjusters
- Bed View Camera with trailer camera provisions and trailer viewing software
- HD Surround Vision and Ultrasonic Front and Rear Park Assist
- Heated steering wheel and automatic temperature control with dual-zone A/C
- Remote vehicle starter system with push button start
- 120-Volt bed-mounted and instrument panel power outlets
- Rear Cross Traffic Alert and Trailer Side Blind Zone Alert
This truck stands ready for work and weekend adventures alike. The AT4 brings a commanding presence with its Volcanic Red Tintcoat finish and gloss black grille styling. The 6.6L Duramax turbodiesel delivers the torque and capability you need, while the advanced transfer case gives you control in any terrain. Premium floor liners protect your investment, and the spray-on bedliner keeps your cargo area in top condition.
Inside, you'll find a driver-focused cabin built for long days. Heated and ventilated front seats adjust 10 ways with lumbar support, ensuring comfort whether you're heading to the job site or crossing the country. The Bose audio system, wireless phone projection, and SiriusXM keep you connected and entertained throughout your journey. Wireless charging and multiple USB ports keep your devices powered.
Safety and visibility matter on any road. The truck features HD Surround Vision, rear cross traffic alert, and the Bed View Camera with trailer provisions for confident backing and towing operations. Automatic emergency braking, lane departure warning, and forward collision alert provide additional peace of mind. The heated steering wheel and rain-sensing wipers add comfort and functionality on cold or wet days.
This is a truck built to work as hard as you do, with the refinement and technology to make every mile productive and enjoyable. We invite you to experience the Sierra 2500HD AT4 firsthand and discover how it can serve your needs.
