Used 2021 GMC Sierra 1500 Denali for sale in Jacksonville, FL. 2021 GMC Sierra 1500 Denali for sale St Augustine, FL, Sierra 1500 Denali, 4D Crew Cab, EcoTec3 6.2L V8, White Frost Tricoat, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 2 USB Ports, 2 USB Ports (1st Row), 4G LTE Wi-Fi Hotspot Capable, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Bed View Camera, CarbonPro (Carbon Fiber Composite) Bed, Chrome Recovery Hooks, Chrome Wheel To Wheel Assist Steps, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Denali CarbonPro Edition, Driver Alert Package I, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, GMC Connected Access Capable, HD Rear Vision Camera, HD Surround Vision w/2 Trailer View Camera Provisions, Heated Driver & Front Outboard Passenger Seating, Heavy-Duty Air Filter, Hill Descent Control, Hitch Guidance, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Integrated Trailer Brake Controller, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, Multicolor 15'' Diagonal Head-Up Display, MultiPro Audio System by Kicker, Navigation System, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Rear Defogger, Preferred Equipment Group 5SA, ProGrade Trailering System, Rear Camera Mirror, Rear Cross Traffic Alert, Rear Dual USB Charging-Only Ports, Rear Wheelhouse Liners, Remote Vehicle Starter System, Safety Alert Seat, Signature Denali Grille, Spray-On Pickup Bed Liner w/Denali Logo, Steering Wheel Audio Controls, Technology Package, Theft Deterrent System (Unauthorized Entry), Trailering Package, Ultrasonic Front & Rear Park A