Certified Pre-Owned 2021 GMC Sierra 1500 4WD AT4 Crew Cab in O'Fallon, MO

Experience the power and capability of the 2021 GMC Sierra 1500 AT4. This rugged and versatile truck is built to conquer any terrain, offering an impressive combination of performance, technology, and style.

- Carfax 1-Owner
- 6.2L V8 EcoTec3 Engine with Dynamic Fuel Management
- Tri-Fold Hard Tonneau Cover
- Trailering Package
- Heated and Ventilated Front Seats
- Keyless Open and Start
- Integrated Trailer Brake Controller
- In-Vehicle Trailering App
- Hitch Guidance with Hitch View
- 18" Machined Aluminum Wheels

Beneath the bold, aggressive exterior, the Sierra AT4 is equipped with a powerful 6.2L V8 EcoTec3 engine, delivering 420 horsepower and 460 lb-ft of torque. This engine features Dynamic Fuel Management, optimizing power and efficiency by seamlessly transitioning between 2 and 8 cylinders as needed. Paired with a smooth-shifting 10-speed automatic transmission and capable 4-wheel-drive system, the Sierra AT4 is ready to tackle any adventure.

The Sierra AT4’s interior is designed with your comfort and convenience in mind. Heated and ventilated front seats, a heated steering wheel, and dual-zone automatic climate control ensure you stay comfortable in any weather. The premium audio system, with SiriusXM 360L, keeps you entertained on the open road, while the 4G LTE Wi-Fi hotspot keeps you connected.

This 2021 GMC Sierra 1500 AT4 is Carfax certified, ensuring a clean history and peace of mind. With low mileage and a wealth of premium features, this truck is a must-see for any discerning buyer.

Available while supplies last! Great pricing on quality pre-owned with premium features like remote start, climate control, and more. Enjoy no-haggle pricing-the price you see is the price you pay at Clement Ford. We pay top dollar for trade-ins; free appraisals today! Price excludes tax, title, tags & admin fee. Confirm all info, pricing, features & availability. Dealer not responsible for errors. We strive for accuracy but recommend contacting us to verify details. See dealer website for full pricing and vehicle information.

• 10-Way Power Driver Seat Adjuster w/Lumbar
• 10-Way Power Passenger Seat Adjuster w/Lumbar
• 12-Volt Rear Auxiliary Power Outlet
• 120-Volt Bed Mounted Power Outlet
• 120-Volt Instrument Panel Power Outlet
• 170 Amp Alternator
• 18" x 8.5" Machined Aluminum Wheels
• 2 USB Ports
• 2 USB Ports (1st Row)
• 3.23 Rear Axle Ratio
• 4-Wheel Disc Brakes
• 4.2" Diagonal Color Display Driver Info Center
• 4G LTE Wi-Fi Hotspot Capable
• 6 Speakers
• 6-Speaker Audio System Feature
• ABS brakes
• Air Conditioning
• Alloy wheels
• AM/FM radio: SiriusXM with 360L
• Apple CarPlay/Android Auto
• Auto-dimming door mirrors
• Auto-dimming Rear-View mirror
• Auto-Locking Rear Differential
• Automatic temperature control
• Auxiliary External Transmission Oil Cooler
• Body-Color Surround Grille
• Brake assist
• Bumpers: body-color
• Carfax 1-Owner
• Color-Keyed Carpeting Floor Covering
• Compass
• Deep-Tinted Glass
• Delay-off headlights
• Driver door bin
• Driver Memory
• Driver vanity mirror
• Dual front impact airbags
• Dual front side impact airbags
• Electric Rear-Window Defogger
• Electrical Lock Control Steering Column
• Electronic Stability Control
• Floor-Mounted Center Console
• Front anti-roll bar
• Front Bucket Seats
• Front Center Armrest
• Front dual zone A/C
• Front fog lights
• Front License Plate Kit
• Front Prem Floor Liners w/Removable Carpet Insert
• Front reading lights
• Front wheel independent suspension
• Fully automatic headlights
• GMC Connected Access Capable
• Hard-Folding Tonneau Cover (LPO)
• HD Rear Vision Camera
• Heated door mirrors
• Heated Driver & Front Outboard Passenger Seating
• Heated front seats
• Heated steering wheel
• Heavy-Duty Air Filter
• Hill Descent Control
• Hitch Guidance
• Hitch Guidance w/Hitch View
• Illuminated entry
• In-Vehicle Trailering App
• Integrated Trailer Brake Controller
• Keyless Open & Start
• LED Cargo Area Lighting
• Low tire pressure warning
• Manual Tilt-Wheel & Telescoping Steering Column
• Memory seat
• Not Equipped w/Automatic Stop/Start
• Not Equipped w/Heated 2nd Row Outboard Seats
• Occupant sensing airbag
• Off-Road Suspension
• OnStar & GMC Connected Services Capable
• Outside temperature display
• Overhead airbag
• Overhead console
• Panic alarm
• Passenger door bin
• Passenger vanity mirror
• Perforated Leather-Appointed Front Seat Trim
• Power Door Locks
• Power door mirrors
• Power driver seat
• Power Front Passenger Windows w/Express Up/Down
• Power Front Windows w/Driver Express Up/Down
• Power passenger seat
• Power Rear Windows w/Express Down
• Power steering
• Power windows
• Preferred Equipment Group 4SB
• Premium audio system: GMC Infotainment System
• ProGrade Trailering System
• Radio data system
• Radio: Premium GMC Infotainment Sys w/Multi-Touch
• Rear Dual USB Charging-Only Ports
• Rear Prem Floor Liners w/Removable Carpet Insert
• Rear reading lights
• Rear seat center armrest
• Rear step bumper
• Rear Wheelhouse Liners
• Rear window defroster
• Red Recovery Hooks
• Remote keyless entry
• Remote Vehicle Starter System
• Security system
• SiriusXM w/360L
• Speed control
• Speed-sensing steering
• Split folding rear seat
• Spray-On Pickup Bed Liner w/AT4 Logo
• Steering Wheel Audio Controls
• Steering wheel mounted audio controls
• Tachometer
• Telescoping steering wheel
• Theft Deterrent System (Unauthorized Entry)
• Tilt steering wheel
• Traction control
• Trailering Package
• Trip computer
• Variably intermittent wipers
• Ventilated Driver & Front Passenger Seats
• Ventilated front seats
• Voltmeter
• Wheel Locks (Set of 4) (LPO)