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

The 2026 GMC Sierra 2500HD SLE Crew Cab Standard Box 4-Wheel Drive is engineered for uncompromising strength, advanced trailering technology, and everyday comfort. Built on a heavy-duty foundation with bold GMC styling, this Sierra HD delivers serious capability for demanding jobs while keeping you connected and in control. 

Performance & Heavy-Duty Capability 

• Engine: 6.6L V8 Direct Injection with Variable Valve Timing delivering robust horsepower and torque 

• Transmission: 10-speed automatic transmission engineered for smooth, confident shifting under load 

• Drivetrain: Autotrac® Two-Speed Transfer Case with 4WD for adaptable traction on any terrain 

• Rear Axle Ratio: 3.73 ratio optimized for towing strength and hauling confidence 

• GVWR: 10,850 lbs (4,921 kg) supporting serious payload capability 

• Automatic Locking Rear Differential: Enhanced traction in challenging worksite or off-road conditions 

• Heavy-Duty Front Springs & Off-Road Suspension: Tuned for durability and stability 

• Skid Plates & X31 Off-Road Package: Added protection when venturing off pavement 

• Hill Descent Control: Controlled confidence on steep grades 

• Engine Oil & Transmission Coolers: Built to handle demanding towing conditions 

• 170-Amp Alternator: Strong electrical output for jobsite tools and accessories 

• High Idle Switch: Ideal for powering equipment in commercial applications 

Trailering Technology 

• Integrated Trailer Brake Controller: Seamless trailer braking control 

• Hitch Guidance with Hitch View: Simplified trailer hookup with camera assistance 

• In-Vehicle Trailering App: Custom trailer profiles, maintenance reminders, and diagnostics 

• Trailer Camera Provisions & Bed View Camera: Expanded visibility when towing 

• Trailer Side Blind Zone Alert: Enhanced awareness during lane changes 

• Trailer Tire Pressure Monitoring Capability: Monitor trailer tire health on the go 

Interior Comfort & Convenience 

• Crew Cab Configuration: Spacious rear seating for crew or family 

• Jet Black Interior: Durable and refined cabin design 

• Front 40/20/40 Split-Bench Seat: Versatile seating and storage flexibility 

• 10-Way Power Driver Seat: Adjustable comfort for long days behind the wheel 

• Heated Front Outboard Seats & Heated Steering Wheel: Comfort in colder climates 

• Dual-Zone Automatic Climate Control: Personalized comfort for driver and passenger 

• Power Sliding Rear Window with Defogger: Added ventilation and visibility 

• Remote Vehicle Start & Push-Button Start: Convenience at your fingertips 

• Rear Seat Storage Package: Smart interior cargo solutions 

• Rubberized-Vinyl Floor Mats (Front & Rear): Durable protection for work environments 

Technology & Connectivity 

• 13.4" GMC Premium Infotainment Touchscreen: Modern interface with Google Built-In compatibility 

• 12" Digital Driver Information Centre: Reconfigurable multi-colour display 

• Wireless Apple CarPlay® & Android Auto™: Seamless smartphone integration 

• Wi-Fi® Hotspot Capability & OnStar® Basics: Connected services on the road 

• SiriusXM® Capability: Expanded entertainment options 

• 120-Volt AC Power Outlets (Instrument Panel & Bed): Power tools and devices with ease 

• LED Cargo Bed Lighting: Clear visibility when working after dark 

Safety & Driver Assistance 

• Sierra HD Pro Safety Suite: Advanced driver-assistance technologies 

• Forward Collision Alert with Automatic Emergency Braking 

• Front Pedestrian Braking & Lane Departure Warning 

• Following Distance Indicator: Encourages safe spacing on highways 

• Front & Rear Park Assist: Added confidence when maneuvering 

• HD Surround Vision: Bird’s-eye camera view for tight spaces 

• Rear Cross Traffic Alert: Enhanced awareness when reversing 

• Teen Driver Mode & Buckle to Drive: Promotes responsible driving habits 

• Theft-Deterrent System & Tire Pressure Monitoring: Added security and monitoring 

Exterior Styling & Utility 

• Summit White Exterior: Clean, professional appearance 

• 18" Machined Aluminum Wheels with Dark Grey Accents: Bold heavy-duty stance 

• LT275/70R18E All-Terrain Tires: Built for traction and durability 

• Chrome Front & Rear Bumpers: Classic GMC presence 

• Black Front Recovery Hooks: Functional and ready for action 

• LED Headlamps, Fog Lamps & Roof Marker Lamps: Enhanced visibility and commanding road presence 

• Perimeter Task Lighting & Deep Tint Glass: Practical and refined 

• EZ Lift Power Lock & Release Tailgate: Effortless bed access 

• Spray-On Bedliner: Long-lasting bed protection 

• 6" Chrome Assist Steps: Easier cabin access with polished style 

Whether it’s towing heavy equipment, tackling rugged job sites, or heading out for a weekend escape, the 2026 GMC Sierra 2500HD SLE Crew Cab 4WD delivers strength, advanced trailering intelligence, and premium comfort in one commanding package. Built to work hard and drive smart, this is heavy-duty capability the GMC way.