2026
GMC SIERRA 2500HD SLE 4X4 CREW CAB 6.75 FT. BOX

The 2026 GMC Sierra 2500HD SLE Crew Cab Standard Box is built to answer the call of hard work with confidence and composure. Blending heavy-duty strength, modern technology, and everyday comfort, this Sierra HD delivers professional-grade capability in a truck that’s just as comfortable on the highway as it is on the job site. 

Performance & Capability 

• Engine: 6.6L V8 gasoline engine delivering proven power, strong torque, and long-term durability 

• Transmission: Heavy-duty 10-speed automatic transmission for smooth, controlled shifts under load 

• Drivetrain: Autotrac® 4-Wheel Drive with two-speed transfer case for confident traction on pavement, snow, gravel, or dirt 

• Axle Ratio: 3.73 rear axle ratio optimized for trailering, hauling, and steady pulling power 

• GVWR: Up to 10,850 lbs, engineered to handle demanding workloads 

• Trailering Equipment: Integrated trailer brake controller, hitch guidance with Hitch View, and in-vehicle trailering app for precise, confident towing 

• Off-Road Readiness: Automatic locking rear differential, skid plates, and hill descent control for added confidence beyond the pavement 

• Drive Modes: Selectable drive modes to adapt handling and power delivery to road and load conditions 

Heavy-Duty Engineering 

• Reinforced HD suspension with heavy-duty front springs for stability under load 

• Engine oil cooler, transmission oil cooler, and heavy-duty air filtration system for sustained performance 

• Active aero grille shutters to optimize airflow and cooling efficiency 

• Trailer camera provisions and available trailer tire pressure monitoring for enhanced towing awareness 

Winter & All-Weather Comfort 

• Heated driver and front passenger seats for cold-weather comfort 

• Heated steering wheel and remote start system to make winter mornings easier 

• Dual-zone automatic climate control with rear air vents for balanced cabin comfort 

• Engine block heater for reliable cold-weather starts 

• All-terrain tires and 4WD traction for confident year-round driving 

Interior Comfort & Convenience 

• Spacious Crew Cab with durable Jet Black interior designed for work and everyday use 

• Practical 40/20/40 front bench seat with power-adjustable driver seat and lumbar support 

• Power sliding rear window and rear seat storage package for added versatility 

• Keyless Open and push-button start for effortless entry and ignition 

• Multiple USB ports and 120V power outlets in the cabin and bed to power tools and devices 

• Auto-dimming rearview mirror and universal home remote for added convenience 

Technology & Connectivity 

• 13.4" GMC Premium Infotainment touchscreen with Google Built-In 

• Wireless Apple CarPlay® and Android Auto™ compatibility 

• 12" reconfigurable digital driver information display 

• SiriusXM compatibility and Wi-Fi hotspot capability 

• 6-speaker audio system delivering clear, dependable sound 

Safety & Driver Assistance 

• Sierra HD Pro Safety and Pro Safety Plus technologies 

• Forward collision alert with automatic emergency braking and front pedestrian braking 

• Lane departure warning and following distance indicator 

• HD Surround Vision, bed view camera, and trailer camera provisions for enhanced visibility 

• Front and rear park assist, rear cross traffic alert, and trailer side blind zone alert 

• Teen Driver mode and Buckle-to-Drive technology for added peace of mind 

Exterior Styling & Utility 

• 18" machined aluminum wheels with dark grey metallic accents 

• Summit White exterior with bold chrome front and rear bumpers 

• LED headlamps, LED fog lamps, LED cargo bed lighting, and LED roof marker lamps for maximum visibility 

• Spray-on bedliner and EZ-Lift power lock and release tailgate for work-ready durability 

• CornerStep rear bumper and black front recovery hooks for easy access and added confidence 

Built to Get the Job Done 

Whether you’re towing heavy equipment, managing a demanding workday, or heading out on the open road, the 2026 GMC Sierra 2500HD SLE delivers relentless strength, smart technology, and everyday comfort. It’s a heavy-duty truck engineered to work hard, perform reliably, and look confident doing it, day after day.