This 2021 GMC Sierra 1500 AT4 delivers the capability and refinement you expect from a premium truck, combining robust performance with thoughtful comfort features that make every drive purposeful.- Android Auto and Apple CarPlay- Heated and ventilated front seats- Heated steering wheel- EcoTec3 6.2L V8 engine- Remote start system- Spray-on bed liner with AT4 logo- Backup camera- Bluetooth connectivity- Trailering package with integrated trailer brake controller- Power windows and door locks- LED cargo area lighting- Goodyear Wrangler DuraTrac tires- 4.2" color display driver info center- Wireless charging capable infotainment system- Auto-locking rear differentialThe black exterior presents a commanding appearance that suits both daily driving and weekend adventures. At 45,211 miles, this single-owner truck comes with available service records, providing confidence in its maintenance history. The Carfax report confirms one-owner status, a meaningful indicator of how the vehicle has been cared for throughout its life.Power and efficiency work together in this Sierra. The EcoTec3 6.2L V8 produces 420 horsepower and 460 lb-ft of torque while operating across 17 different cylinder patterns to optimize performance based on your driving needs. The 10-speed automatic transmission and 4WD capability handle varied terrain and weather with equal competence. Whether navigating city streets or rural roads, this truck responds with confidence.Comfort is woven throughout the cabin. Leather-appointed front seats provide support during long drives, and both the driver and front passenger seats heat and cool to your preference. The heated steering wheel adds welcome warmth during cold mornings. Steering wheel audio controls keep your attention focused on the road while managing entertainment options. Premium GMC infotainment includes SiriusXM with 360L, Multi-Touch controls, and dual-zone automatic temperature control that lets driver and passenger set independent comfort levels.Utility features reflect GMC's commitment to functional design. The spray-on bed liner protects against daily wear, while the trailering package includes an integrated trailer brake controller, hitch guidance with hitch view, and an in-vehicle trailering app. Recovery hooks and power rear auxiliary outlets expand what this truck can handle. Premium floor liners protect the cabin, and the cargo area benefits from LED lighting for visibility when loading and unloading.Technology and connectivity serve your lifestyle. Push-button start, remote keyless entry, and the remote start system integrate seamlessly into your routine. OnStar and GMC Connected Services keep you informed and connected. The backup camera and auto-locking rear differential contribute to confident operation in challenging situations.This 2021 Sierra 1500 AT4 represents a truck that balances capability with daily livability. We invite you to come see it in person—test drive it, sit in those comfortable seats, and feel how well engineered this truck truly is.