2021 GMC Sierra 1500 AT4 Crew Cab Long Box 4WD

This 2021 GMC Sierra 1500 AT4 in Black delivers premium capability and refined comfort for those who demand both performance and sophistication in their truck.

- Premium Bose 7-Speaker Sound System with SiriusXM 360L
- Multicolor 15" Diagonal Head-Up Display
- HD Surround Vision with 2 Trailer View Camera Provisions and Rear Camera Mirror
- Apple CarPlay/Android Auto Integration
- 10-Way Power Driver Seat with Lumbar and Ventilated Front Seats
- Perforated Leather-Appointed Front Seat Trim with Heated Seating
- EcoTec3 6.2L V8 Engine with 10-Speed Automatic and 4WD
- ProGrade Trailering System with Integrated Trailer Brake Controller
- Power Sunroof
- Adaptive Cruise Control with Forward Collision Alert and Automatic Emergency Braking
- Lane Keep Assist with Lane Departure Warning and Side Blind Zone Alert
- Ultrasonic Front and Rear Park Assist
- Off-Road Suspension with Auto-Locking Rear Differential and Hill Descent Control
- LED Cargo Area Lighting with Spray-On Bed Liner featuring AT4 Logo
- Remote Vehicle Starter System with Wireless Charging

The AT4 trim stands out as a purpose-built off-road variant that doesn't compromise on day-to-day livability. The EcoTec3 6.2L V8 provides substantial power paired with a 10-Speed Automatic transmission, while the 4WD system with off-road suspension, auto-locking rear differential, and hill descent control ensures confidence on any terrain. Whether navigating city streets or venturing off the beaten path, this truck adapts to your needs.

Inside, the cabin reflects GMC's commitment to premium materials and thoughtful design. Perforated leather adorns the front seats, which feature both heating and ventilation capabilities. The 10-way power driver seat with lumbar support accommodates long drives, while the multicolor 15" head-up display provides critical information without requiring you to look away from the road. Climate control includes dual-zone automatic temperature management with rear heating for second-row passengers.

Technology integration keeps you connected and in control. The Premium GMC Infotainment System with navigation, 4G LTE Wi-Fi hotspot capability, and Apple CarPlay/Android Auto ensures seamless smartphone integration. The Bose 7-speaker audio system delivers quality sound for your daily commute or road trip. OnStar and GMC Connected Services provide additional connectivity and peace of mind.

Safety features throughout this truck prioritize both driver awareness and accident prevention. Adaptive cruise control, forward collision alert with automatic emergency braking, lane keep assist with lane departure warning, and side blind zone alert work together to enhance situational awareness. The HD surround vision system with rear camera mirror and trailer view camera provisions makes parking and maneuvering easier, while ultrasonic park assist takes the guesswork out of tight spaces.

The ProGrade Trailering System with integrated trailer brake controller and in-vehicle trailering app transforms this Sierra into a serious towing platform. Hitch guidance and hitch view camera simplify hookup and trailer monitoring. The spray-on bed liner with AT4 logo protects the cargo area while reflecting the truck's off-road heritage, and LED cargo area lighting illuminates your work space.

This 2021 Sierra 1500 AT4 represents a complete truck ownership experience—rugged capability married with genuine luxury and modern safety technology. We invite you to experience its commanding presence and refined interior firsthand.

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