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

The 2026 GMC Sierra 2500HD SLT Crew Cab Standard Box 4-Wheel Drive blends heavy-duty muscle with premium refinement and advanced technology. With its bold chrome accents, commanding stance, and intelligent trailering innovations, this Sierra HD delivers professional-grade strength without sacrificing comfort, built for those who demand serious capability with upscale confidence. 

Performance & Capability 

• Engine: 6.6L V8 Direct Injection engine delivering immense torque and dependable heavy-duty performance 

• Transmission: 10-speed automatic engineered for smooth power delivery and confident hauling 

• Drivetrain: Autotrac® two-speed 4-Wheel Drive system for superior traction in all conditions 

• Rear Axle Ratio: 3.73 rear axle for optimized towing strength and pulling power 

• Automatic Locking Rear Differential: Added traction when the job site or trail gets demanding 

• Off-Road Suspension with Rancho® Shocks: Tuned for durability and control over rough terrain 

• Hill Descent Control & Skid Plates: Extra confidence when navigating steep or uneven surfaces 

• Digital Variable Steering Assist: Responsive steering tailored to speed and load 

• Heavy-Duty Air Filter, Engine Oil Cooler & Transmission Oil Cooler: Built to handle hard work 

• 170-Amp Alternator: Strong electrical support for tools and trailering equipment 

• Integrated Trailer Brake Controller: Seamless control when towing heavy loads 

• ProGrade Trailering System: Hitch guidance with Hitch View and in-vehicle trailering app 

• 120V AC Power Outlets (Bed & Instrument Panel): Jobsite-ready versatility 

• EZ Lift Power Lock & Release Tailgate: Easy loading with remote convenience 

Interior Comfort & Convenience 

• Crew Cab Configuration: Spacious rear seating with available under-seat storage 

• Front Bucket Seats: Power-adjustable driver and passenger seats with memory settings 

• Heated & Ventilated Front Seats: Year-round comfort in any climate 

• Heated Steering Wheel: Warm grip during cold mornings 

• Dual-Zone Automatic Climate Control: Personalized cabin comfort 

• Remote Vehicle Start: Pre-condition the cabin before you step inside 

• Keyless Open & Push-Button Start: Effortless access and ignition 

• Power Windows with Express Up/Down & Power Door Locks: Everyday convenience 

• Auto-Dimming Rearview Mirror & Illuminated Vanity Mirrors: Refined interior touches 

• Rear Window Defogger & Deep-Tinted Glass: Enhanced visibility and privacy 

• All-Weather Floor Liners (Dealer Installed): Durable interior protection 

Technology & Connectivity 

• 13.4" GMC Premium Infotainment Touchscreen with Google Built-In: Intuitive interface with navigation capability 

• 12" Digital Driver Information Centre: Reconfigurable multi-color display for key vehicle data 

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

• Wireless Charging Pad: Convenient device charging without clutter 

• Bose® Premium Audio System: Rich, immersive sound quality 

• Wi-Fi® Hotspot Capability: Stay connected wherever work or adventure takes you 

• Multiple USB Ports (Front & Rear): Accessible charging for all passengers 

• Steering Wheel Audio & Cruise Controls: Command at your fingertips 

• Vehicle Health & Diagnostics Integration: Smart monitoring for peace of mind 

Safety & Driver Assistance 

• Sierra HD Pro Safety Package: Advanced driver-assistance technologies for added confidence 

• Forward Collision Alert with Automatic Emergency Braking 

• Lane Departure Warning: Extra awareness on long highway drives 

• Front Pedestrian Braking: Enhanced urban safety 

• Following Distance Indicator: Helps maintain safe spacing 

• HD Rear Vision Camera: Clear visibility when reversing or hitching 

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

• Tire Pressure Monitoring System: Real-time tire awareness 

Exterior Styling & Utility 

• 20" Bright Face Aluminum Wheels with Dark Pockets: Strong, upscale presence 

• All-Terrain Tires & Steel Spare Wheel: Ready for demanding conditions 

• Summit White Exterior: Clean, bold finish with timeless appeal 

• Chrome Front & Rear Bumpers with Chrome Door Handles & Mirror Caps: Refined heavy-duty styling 

• LED Headlamps, Fog Lamps & Cargo Bed Lighting: Maximum visibility day or night 

• LED Roof Marker Lamps: Signature HD presence 

• Power-Adjustable Heated Trailering Mirrors with Task Lighting: Enhanced visibility when towing 

• Rear Bumper CornerSteps: Easier bed access 

• Standard Pickup Bed with Rear Wheelhouse Liners: Built for durability and cargo protection 

• Black Front Recovery Hooks: Functional confidence when the terrain turns tough 

Whether hauling equipment to the job site, towing a fifth-wheel for the weekend, or navigating unpredictable conditions, the 2026 GMC Sierra 2500HD SLT Crew Cab 4WD delivers uncompromising strength, advanced technology, and premium comfort. It’s the perfect balance of heavy-duty capability and refined craftsmanship, engineered for those who work hard and drive with purpose.