Certified 2021 Gmc Sierra 1500 AT4

Rugged Meets Refined — 2021 GMC Sierra 1500 AT4. Take command of Shenandoah Valley roads in this GMC Sierra AT4 Crew Cab, the perfect mix of off-road grit and premium comfort. Whether you're headed to the trails, towing your boat to Lake Frederick, or just commuting through Winchester — this truck delivers. Power & Performance. 6.2L V8 Engine — Legendary GM muscle under the hood. 10-Speed Automatic Transmission — Smooth shifts and towing confidence. 4WD with Locking/Slip Differential — Built to conquer all terrain. ProGrade Trailering System — Hitch Guidance, Hitch View & In-Vehicle Trailering App. Tow Hitch + Cargo Tie Downs — Work or play ready. Mechanical Highlights. Heavy-Duty Alternator (220 amps). Capless Fuel Fill. External Transmission & Engine Oil Coolers. Dual Exhaust (CarbonPro Black Tips – optional). Aluminum Wheels, All-Terrain Tires. Interior Luxury. Heated & Ventilated Front Leather Seats. Heated Steering Wheel — Year-round comfort. Power Driver & Passenger Seat with Lumbar Support. Rear Defrost + Rear Seat Storage Package. Dual-Zone Automatic Climate Control. Remote Start. Technology & Connectivity. Apple CarPlay & Android Auto. WiFi Hotspot + Bluetooth. Satellite Radio, AM/FM, MP3, Auxiliary Audio. Steering Wheel Audio Controls. Back-Up Camera + Telematics. Keyless Entry & Push-Button Start. Safety First. Driver & Passenger Air Bags (Front, Side, Curtain). Tire Pressure Monitoring System. Stability & Traction Control. Rear Seat Reminder + Driving Behavior Monitoring. Daytime Running Lights.