Pre-Owned 2021 GMC Sierra 1500 AT4 For Sale Dearborn, MI

Meet this 2021 GMC Sierra 1500 AT4 in striking Blue—a truck built for those who demand capability, comfort, and refined craftsmanship on every drive.- 3.0L Duramax I-6 Diesel Turbocharged engine with 460 lb-ft of torque- 4WD with Auto-Locking Rear Differential and Hill Descent Control- AT4 Premium Package with high-clearance step and specialized tires- Power Sunroof with premium glass- Technology Package including HD Surround Vision, Rear Camera Mirror, and Bed View Camera- Multicolor 15 Head-Up Display with 8 Digital Driver Information Center- Premium Bose 7-Speaker Sound System with GMC Infotainment Navigation- Driver Alert Package II with Automatic Emergency Braking and Adaptive Cruise Control- Heated and Ventilated Front Seats with Power Driver/Passenger Adjustment- Wireless Charging and 4G LTE Wi-Fi Hotspot- ProGrade Trailering System with Integrated Trailer Brake Controller- Spray-On Pickup Bed Liner with AT4 Logo- Keyless Open & Start with Remote Vehicle Starter- One Owner with Clean Carfax and No Accident HistoryThis Sierra 1500 AT4 combines purpose-built engineering with luxury appointments. The 3.0L Duramax diesel delivers impressive torque right when you need it, while the 10-speed automatic transmission ensures smooth power delivery whether you're navigating city streets or tackling rugged terrain. The 4WD system with auto-locking rear differential and hill descent control provides the confidence needed for any situation.The AT4 Premium Package elevates the experience with premium touches throughout. The power sunroof floods the cabin with natural light, while heated and ventilated front seats adjust to your preferences in ten directions. The steering wheel is heated for morning drives, and the wireless charging keeps your devices ready.Technology transforms how you drive and tow. The multicolor 15 head-up display keeps critical information in your line of sight, while the HD Surround Vision with bed view cameras provides complete awareness around the truck. The Rear Camera Mirror offers a clear view of what's behind, and the integrated trailer brake controller makes towing intuitive and controlled.Safety is woven throughout. Driver Alert Package II includes forward collision alert, automatic emergency braking, lane keep assist, and adaptive cruise control—systems designed to help you avoid hazards and maintain control. The safety alert seat provides additional awareness when intervention is needed.Inside, the Premium Bose audio system with GMC Infotainment navigation delivers quality sound and seamless smartphone integration through Apple CarPlay and Android Auto. Steering wheel controls keep your attention on the road, while the 4G LTE Wi-Fi hotspot keeps your passengers connected. Multiple USB ports and 120-volt charging options throughout the cabin ensure your devices stay powered.This truck arrives with one owner and a clean Carfax—a foundation of reliability and transparency. With 22 city and 26 highway MPG from the efficient Duramax diesel, you get capability without sacrificing fuel economy. This is a truck that puts capability, comfort, and technology where they belong—in your hands.