2026 GMC Sierra 3500

The 2026 GMC Sierra 3500HD Denali represents professional-grade capability wrapped in refined luxury, delivering the power and sophistication you need for work or weekend adventures.

- 6.6L Duramax V8 Turbodiesel with 470 horsepower and 975 lb-ft of torque
- 13.4 diagonal color touchscreen GMC Premium Infotainment system
- Wireless Apple CarPlay and Android Auto connectivity
- HD Surround Vision with multiple camera provisions
- Denali Reserve Package with signature chrome grille
- Gooseneck/5th Wheel Prep Package for towing versatility
- X31 Off-Road Package with off-road suspension and hill descent control
- Bose Premium 7-Speaker Sound System with SiriusXM satellite radio
- Heated and ventilated front seats with 12-way power adjustment
- Multicolor 15 Head-Up Display with trailer guidance
- Power sunroof and deep-tinted glass
- Spray-on bed liner with GMC logo and LED cargo lighting
- Advanced safety features including automatic emergency braking and lane departure warning
- Wireless phone charging and charging USB ports throughout
- Black Badging Package with black GMC emblems and nameplates

This Sierra 3500HD arrives finished in striking Black, presenting an imposing stance while maintaining the premium aesthetic befitting the Denali nameplate. The 10-speed automatic transmission pairs seamlessly with the legendary Duramax diesel engine, engineered to handle demanding workloads while delivering exceptional reliability. Four-wheel drive ensures capability across varied terrain and weather conditions.

Inside, the cabin reflects Denali's commitment to comfort and technology. Perforated leather seating, genuine wood trim accents, and a precisely engineered interior layout create an environment that feels both upscale and purposeful. The 13.4 touchscreen serves as the command center, offering intuitive access to navigation, entertainment, and vehicle controls. Seamless smartphone integration through wireless Apple CarPlay and Android Auto keeps you connected without compromise.

The truck's advanced camera systems provide confidence in any situation. The HD Surround Vision offers a complete view around the vehicle, while the bed view camera with trailer provisions delivers precision when backing up with cargo or equipment. Ultrasonic park assist, trailer side blind zone alert, and rear cross traffic alert work together to enhance situational awareness.

Off-road capability comes standard through the X31 package, featuring off-road suspension tuning and hill descent control. The 2-speed active transfer case allows seamless switching between driving modes, while the gooseneck/5th wheel prep package establishes this truck as a serious towing platform ready for whatever you attach to it.

Safety technology integrates throughout the design. Automatic emergency braking with forward collision alert, lane departure warning, and a safety alert seat demonstrate GMC's commitmen