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2021 GMC Sierra 1500 AT4 Onyx Black 5.3L V8 4WDVehicle Overview:Year: 2021Make: GMCModel: Sierra 1500Trim: AT4 Off-Road PackageExterior Color: Onyx BlackInterior: Jet Black with Kalahari AccentsEngine: 5.3L EcoTec3 V8 with Dynamic Fuel ManagementTransmission: 10-Speed AutomaticDrivetrain: 4-Wheel DriveMileage: 178,940KMKey Features & Options:AT4 Off-Road Suspension with 2" factory lift and skid platesZ82 Trailering Package with integrated trailer brake controller, hitch guidance & hitch viewPremium GMC Infotainment System with 8" color touchscreen, Apple CarPlay & Android AutoHeated & Ventilated Front Bucket Seats with driver/passenger 8-way power adjustmentHeated Steering Wheel and memory settings for mirrors and seatSpray-on Bedliner with GMC MultiPro Tailgate and LED cargo lightingTri-Zone Automatic Climate Control and rear-seat air vents4G LTE Wi-Fi Hotspot and OnStar capabilityRemote Vehicle Start and keyless open/startHD Rear Vision Camera and Teen Driver modeAdvanced Trailing System with multiple camera views19" Machined Aluminum Wheels with aggressive all-terrain tiresDual Exhaust with Premium Tips and high-capacity air/oil cooling systemsSafety Features: Multiple airbags, tire pressure monitoring, theft-deterrent system, hill descent control, and auto-locking rear differentialAdditional Dealer-Installed Equipment:4" Black Round Assist StepsTri-fold Hard Tonneau CoverPremium floor liners and rear wheelhouse linersThis 2021 GMC Sierra 1500 AT4 is purpose-built for drivers who need a truck that can handle rugged terrain while delivering premium comfort and technology. Powered by the proven 5.3L V8 and equipped with a 10-speed automatic transmission, this AT4 combines off-road capability with everyday refinement.Contact us today to schedule a test drive or request more details on this well-equipped, Canadian-spec Sierra AT4.
