Pre-Owned 2026 GMC Sierra 1500 AT4 in St. Louis, MO

Why BUY from Dave Sinclair Buick GMC?When you choose this Onyx Black 2026 GMC Sierra 1500 AT4 with 28,893 miles, you are not just buying a used vehicle - you are investing in quality, reliability and peace of mind. Our clientele depend on us for Transparent Pricing, Convenience and, most importantly, Customer FIRST Service!No Accidents! One Owner! What this vehicle includes:

AT4 CarbonPro Edition ($1,125 value)

• Carbon Fiber Composite Bed
• CarbonPro Fender Hard Badge
• MultiPro Tailgate Audio System by Kicker

AT4 Premium Package ($1,045 value)

• Off-Road High Clearance Step

Technology Package ($1,525 value)

• Rear Camera Mirror
• Multicolor 15 Diagonal Head-Up Display
• Bed View Camera

Preferred Equipment Group 4SB

• Power Front Passenger Windows with Express Up/down
• Power Rear Windows with Express Down
• Deep-Tinted Glass
• Power Door Locks
• Keyless Open and Start
• Power Front Windows with Driver Express Up/down
• Rear Wheelhouse Liners
• Color-Keyed Carpeting Floor Covering
• Front Premium Floor Liners with Removable Carpet Insert
• Push Button Start
• Remote Vehicle Starter System
• Electric Rear-Window Defogger
• Front Rain-Sensing Wipers
• Spray-On Pickup Bedliner with GMC Logo
• Floor-Mounted Center Console
• Auto-Locking Rear Differential
• Black Chrome Grille Insert Bars
• Hill Descent Control
• Integrated Trailer Brake Controller
• Heavy-Duty Air Filter
• Wireless Charging
• Heated Driver and Front Outboard Passenger Seating
• Heated 2nd Row Outboard Seats
• 120-Volt Interior Power Outlet
• Ventilated Driver and Front Passenger Seats
• 220 Amp Alternator
• Power Rake and Telescoping Steering Column
• 2-Speed Transfer Case
• 20 X 9 Machined Aluminum Wheels
• Skid Plates
• GMC Pro Safety
• Hitch View
• Trailer Camera Provisions
• Perimeter Lighting
• SiriusXM with 360L Trial Subscription
• 2 Charge/data USB Ports Inside Center Console
• 2 USB Ports
• 2 type-C Charge-Only Rear USB Ports
• Ultrasonic Front and Rear Park Assist
• OnStar Services Capable
• In-Vehicle Trailering System App
• LED Cargo Area Lighting
• Rear Cross Traffic Braking
• Red Recovery Hooks
• Steering Wheel Audio Controls
• Rear Pedestrian Detection
• Trailer Side Blind Zone Alert
• Premium Bose 7-Speaker Sound System
• Theft Deterrent System (unauthorized Entry)
• HD Surround Vision
• Wi-Fi Hotspot Capable
• Off-Road Suspension
• Trailering Package

AT4 Preferred Package

• Power Sliding Rear Window with Rear Defogger
• Universal Home Remote

Safety and Security

• The vehicle is equipped with a system that senses, and then prepares, the vehicle and/or occupants, for an impending forward collision.
• The vehicle constantly monitors the roadway in front of the vehicle and identifies and tracks pedestrians on an interior display. If the system determines a likely impact, it will automatically take preventative steps to avoid hitting the pedestrian.
• The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display.

Technology and Telematics

• Apple CarPlay/Android Auto smart device wireless mirroring
• Mobile devices can wirelessly connect to the internet through the vehicle’s private mobile network.

• 4-Wheel Disc Brakes
• A/C
• ABS
• Adaptive Cruise Control
• Adjustable Steering Wheel
• Aerial View Display System
• Aluminum Wheels
• AM/FM Stereo
• Auto-Dimming Rearview Mirror
• Automatic Highbeams
• Auxiliary Audio Input
• Back-Up Camera
• Bed Liner
• Blind Spot Monitor
• Bluetooth Connection
• Bucket Seats
• Climate Control
• Conventional Spare Tire
• Cooled Front Seat
• Cross-Traffic Alert
• Cruise Control
• Daytime Running Lights
• Diesel Fuel
• Driver Adjustable Lumbar
• Driver Air Bag
• Driver Monitoring
• Floor Mats
• Fog Lamps
• Four Wheel Drive
• Front Collision Mitigation
• Front Collision Warning
• Front Head Air Bag
• Front Side Air Bag
• Heated Front Seat
• Heated Mirrors
• Heated Rear Seat
• Heated Steering Wheel
• Integrated Tailgate Step
• Intermittent Wipers
• Keyless Entry
• Keyless Start
• Lane Departure Warning
• Lane Keeping Assist
• Leather Seats
• LED Headlights
• Locking/Limited Slip Differential
• Mirror Memory
• MP3 Capability
• Multi-Zone A/C
• Navigation from Telematics
• Navigation System
• Pass-Through Rear Seat
• Passenger Adjustable Lumbar
• Passenger Air Bag
• Passenger Air Bag Sensor
• Power Door Locks
• Power Driver Seat
• Power Folding Mirrors
• Power Mirror
• Power Passenger Seat
• Power Steering
• Power Windows
• Premium Sound System
• Privacy Glass
• Rain Sensing Wipers
• Rear Defrost
• Rear Head Air Bag
• Rear Parking Aid
• Remote Engine Start
• Requires Subscription
• Satellite Radio
• Seat Memory
• Security System
• Smart Device Integration
• Stability Control
• Steering Wheel Audio Controls
• Straight 6 Cylinder Engine
• Telematics
• Tire Pressure Monitor
• Tires - Front All-Terrain
• Tires - Rear All-Terrain
• Tow Hitch
• Tow Hooks
• Traction Control
• Turbocharged
• Variable Speed Intermittent Wipers
• WiFi Hotspot