At McKenzie Buick GMC, we've proudly served Milton, FL and the surrounding communities since 1967. As a family-first dealership, we believe in doing business the right waywith transparent pricing both online and in-store, no surprises, and no games. Come experience the McKenzie Advantage and see why generations of customers say, "We Are McKenzie." - WIRELESS APPLE CARPLAY AND ANDROID AUTO - SUNROOF, POWER - TECHNOLOGY PACKAGE - MIRRORS, OUTSIDE POWER-ADJUSTABLE VERTICAL TRAILERING WITH HEATED UPPER GLASS, LOWER CONVEX MIRRORS - SLT PREMIUM PLUS PACKAGE - X31 OFF-ROAD AND PROTECTION PACKAGE - LPO, CONSOLE-MOUNTED SAFE - LPO, AUXILIARY TRAILER CAMERA, WIRED, ONE CAMERA AND HARDWARE This 2021 GMC Sierra 1500 SLT is a well-equipped and capable full-size pickup that's ready to handle your toughest jobs and weekend adventures. With its powerful EcoTec3 V8 engine, 10-speed automatic transmission, and advanced 4WD system, this Sierra delivers impressive performance and off-road capability. The SLT trim adds a wealth of premium features, including a sunroof, wireless Apple CarPlay and Android Auto, a premium Bose audio system, navigation, and a suite of advanced driver assistance technologies. The Sierra's stylish exterior is enhanced by the SLT Premium Plus Package, which adds 20-inch polished aluminum wheels, chrome assist steps, and a spray-on bedliner. Inside, you'll find luxurious leather-appointed seating with ventilated front seats, a heated steering wheel, and a multicolor head-up display. The X31 Off-Road Package further enhances the Sierra's capability with an off-road-tuned suspension, skid plates, and all-terrain tires. Whether you're tackling tough jobs or seeking an adventure-ready truck, this 2021 GMC Sierra 1500 SLT has the power, capability, and premium features to get the job done. Visit McKenzie Buick GMC today to experience the difference a family-first dealership can make. Thank you for visiting McKenzie Buick GMC. Proudly serving the Milton community since 1967, we're committed to delivering a straightforward, transparent buying experience every step of the way. Conveniently located near Blackwater Bay at 6500 Caroline Street (Highway 90 at the Highway 89 Bypass), we offer a full selection of competitively priced new and pre-owned cars, trucks, and SUVs. Whether you're shopping, servicing, or ordering parts, our team is here to help with no surprisesjust honest, reliable service. Reach out anytime or come experience the McKenzie Advantage for yourself.

Additional Information

Driver Alert Package I,Driver Alert Package II,Preferred Equipment Group 4SA,SLT Convenience Package,SLT Preferred Package,SLT Premium Plus Package,Technology Package,Trailering Package,X31 Off-Road & Protection Package,X31 Off-Road Package,6 Speakers,6-Speaker Audio System Feature,AM/FM radio: SiriusXM with 360L,Premium audio system: GMC Infotainment System,Premium Bose 7-Speaker Sound System,Radio data system,Radio: Premium GMC Infotainment Sys w/Multi-Touch,Radio: Premium GMC Infotainment Sys w/Navigation,SiriusXM w/360L,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,12-Volt Rear Auxiliary Power Outlet,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Memory seat,Power driver seat,Power Front Passenger Windows w/Express Up/Down,Power Front Windows w/Driver Express Up/Down,Power Rear Windows w/Express Down,Power steering,Power windows,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Auto-Locking Rear Differential,Electrical Lock Control Steering Column,Heavy Duty Suspension,Manual Tilt-Wheel & Telescoping Steering Column,Off-Road Suspension,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Door Locks,Power Sunroof,Brake assist,Electronic Stability Control,Hill Descent Control,Delay-off headlights,Front fog lights,Fully automatic headlights,Perimeter Lighting,Dual Exhaust w/Premium Tips,Panic alarm,Security system,Theft Deterrent System (Unauthorized Entry),Adaptive Cruise Control,Speed control,170 Amp Alternator,Auxiliary External Transmission Oil Cooler,Heavy-Duty Air Filter,Auto-dimming door mirrors,Bumpers: chrome,Chrome Grille,Chrome Wheel To Wheel Assist Steps,Front License Plate Kit,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,Power door mirrors,ProGrade Trailering System,Pwr-Adjustable Vertical Trailering Outside Mirrors,Rear step bumper,Rear Wheelhouse Liners,Spray-On Pickup Bed Liner w/GMC Logo,X31 Hard Badge,2 USB Ports,2 USB Ports (1st Row),4G LTE Wi-Fi Hotspot Capable,8" Driver Information Center,Acknowledgement: CWM Tech Pkg requires DQS Mirrors,All-Weather Floor Liner (LPO),Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera,Color-Keyed Carpeting Floor Covering,Compass,Console-Mounted Safe (LPO),Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front reading lights,GMC Connected Access Capable,HD Surround Vision w/2 Trailer View Camera Provisions,Heated steering wheel,Illuminated entry,Lane Change Alert w/Side Blind Zone Alert,Lane Keep Assist w/Lane Departure Warning,Multicolor 15" Diagonal Head-Up Display,OnStar & GMC Connected Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Camera Mirror,Rear Cross Traffic Alert,Rear Dual USB Charging-Only Ports,Rear reading lights,Rear seat center armrest,Safety Alert Seat,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wired Auxiliary Trailer Camera (LPO),Wireless Charging,10-Way Power Driver Seat Adjuster w/Lumbar,10-Way Power Passenger Seat Adjuster w/Lumbar,Front 40/20/40 Split-Bench Seat,Front Bucket Seats,Heated 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seating,Heated front seats,Perf Leather-Appointed Front Outboard Seat Trim,Power passenger seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Front Center Armrest w/Storage,Passenger door bin,Front Frame-Mounted Black Recovery Hooks,Hitch Guidance,Hitch Guidance w/Hitch View,In-Vehicle Trailering App,Integrated Trailer Brake Controller,20" x 9" Polished Aluminum Wheels,Alloy wheels,Wheels: 18" x 8.5" 6-Spoke Machined Aluminum,Deep-Tinted Glass,Power Sliding Rear Window w/Rear Defogger,Variably intermittent wipers,3.23 Rear Axle Ratio,WIRELESS APPLE CARPLAY AND ANDROID AUTO