2021 GMC Sierra 1500 SLT 4x4 Crew Cab 6.6 ft. box

The 2021 GMC Sierra 1500 SLT Crew Cab delivers a refined balance of premium comfort, diesel efficiency, and professional-grade capability. With its bold chrome detailing, upscale interior finishes, and advanced trailering technology, this full-size pickup is designed for drivers who want luxury without sacrificing strength. 

Performance & Capability 

• Engine: Duramax® 3.0L Turbo-Diesel I6 offering impressive torque, smooth power delivery, and excellent fuel efficiency 

• Transmission: Responsive 10-speed automatic engineered for confident towing and highway cruising 

• Drivetrain: Autotrac® Two-Speed 4-Wheel Drive (4WD) for assured traction in all driving conditions 

• Rear Axle Ratio: 3.23 for a balanced blend of towing capability and everyday efficiency 

• Trailering Equipment: Integrated trailer brake controller, hitch guidance with Hitch View, advanced trailering system, and trailer assist guidelines 

• Off-Road Control: Automatic locking rear differential, skid plates, and hill descent control for added confidence on rough terrain 

Ride & Off-Road Readiness 

• X31 Off-Road Package with upgraded suspension and underbody protection 

• All-terrain tires mounted on 20" polished aluminum wheels 

• Driver-selectable drive modes to adapt to terrain, weather, and workload 

• Heavy-duty cooling systems and high-capacity air filtration for demanding use 

Interior Comfort & Luxury 

• Leather-appointed front bucket seats with 8-way power adjustment for both driver and passenger 

• Heated and ventilated front seats, heated rear outboard seats, and heated steering wheel 

• Dark Walnut / Slate interior accents for a rich, upscale cabin feel 

• Tri-zone automatic climate control with rear air vents for passenger comfort 

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

Technology & Connectivity 

• Premium GMC Infotainment System with navigation and intuitive touchscreen interface 

• Bose® premium audio system delivering rich, immersive sound 

• Head-Up Display (HUD) projecting key driving information directly in the driver’s line of sight 

• Wireless charging pad, multiple USB ports, and 120V power outlets in the cabin and bed 

• Rear camera mirror, HD Surround Vision, and Bed View Camera for enhanced visibility 

Safety & Driver Assistance 

• Forward collision alert with low-speed automatic emergency braking 

• Lane keep assist with lane departure warning and lane change alert with side blind zone alert 

• Front and rear park assist with rear cross-traffic alert 

• Adaptive cruise control and following distance indicator 

• Teen Driver mode and driver safety alert seat for added awareness 

Exterior Styling & Utility 

• Exterior Colour: White Frost Tricoat - a premium, pearl-like finish with standout presence 

• Chrome front and rear bumpers, chrome door handles, mirror caps, and assist steps 

• Signature LED headlamps, fog lamps, and LED cargo bed lighting 

• GMC MultiPro™ Tailgate for flexible loading, step access, and work-ready functionality 

• Spray-on bedliner, rear bumper corner steps, and bed-mounted 120V power outlet 

The Bottom Line 

Whether you’re towing with confidence, cruising in comfort, or tackling off-road adventures, the 2021 GMC Sierra 1500 SLT Crew Cab delivers a polished driving experience backed by diesel efficiency, advanced technology, and unmistakable GMC style,  a truck that works hard and looks good doing it. 

The 2021 GMC Sierra 1500 SLT Crew Cab delivers a refined balance of premium comfort, diesel efficiency, and professional-grade capability. With its bold chrome detailing, upscale interior finishes, and advanced trailering technology, this full-size pickup is designed for