Reduced by $100 since Aug 09, 2026

2021 GMC Sierra 1500 SLT



  • $44,099 Twin City Price

  • Retail Price $43,400
    • +$699
  • Internet Price $44,099

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Vehicle Information

VIN: 3GTU9DEL1MG263729
Stock #: MG263729B
Model Code: TK10543
  • Condition Used
  • Body Style Crew Cab
  • Exterior Color Summit White
  • Interior Color Dark Walnut/Slate, Perforated Leather-Appointed Front Outboard Seat Trim
  • Mileage 50,578
  • Fuel Economy
    City/Highway 14/20 MPG
  • Engine Engine: 6.2L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
  • Transmission Automatic
  • Fuel Type Gasoline Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Why BUY from Twin City Buick GMC? When you choose this Summit White 2021 GMC Sierra 1500 SLT with 50,578 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: SLT Convenience PackagePower Sliding Rear Window with Rear DefoggerFront Bucket SeatsFloor-Mounted Center ConsoleHeated 2nd Row Outboard SeatsVentilated Driver and Front Passenger Seats2 USB Ports2 USB Ports (1st Row)Universal Home RemoteSLT Premium Plus Package ($6,145 value)Chrome Wheel to Wheel Assist StepsSpray-On Pickup Bed Liner with GMC Logo10-Speed Automatic Transmission20" X 9" Polished Aluminum WheelsDriver Alert Package IPerimeter LightingUltrasonic Front and Rear Park AssistRear Cross Traffic AlertLane Change Alert with Side Blind Zone AlertDriver Alert Package IISafety Alert SeatAdaptive Cruise ControlIntelliBeam Automatic High Beam On/offFollowing Distance IndicatorForward Collision AlertLane Keep Assist with Lane Departure WarningAutomatic Emergency BrakingFront Pedestrian BrakingX31 Off-Road Package ($850 value)Hill Descent ControlHeavy-Duty Air FilterDual Exhaust with Premium TipsOff-Road Suspension2-Speed Transfer CaseSkid PlatesX31 Hard BadgePreferred Equipment Group 4SAGMC Connected Access CapablePower Front Passenger Windows with Express Up/downPower Rear Windows with Express DownDeep-Tinted GlassKeyless Open and StartPower Door LocksPower Front Windows with Driver Express Up/downRear Wheelhouse LinersColor-Keyed Carpeting Floor CoveringRemote Vehicle Starter SystemElectric Rear-Window DefoggerCompassAuto-Locking Rear DifferentialChrome GrillePremium GMC Infotainment System Radio with Multi-TouchIntegrated Trailer Brake ControllerHeated Driver and Front Outboard Passenger Seating120-Volt Instrument Panel Power OutletAuxiliary External Transmission Oil Cooler12-Volt Rear Auxiliary Power Outlet170 Amp AlternatorElectrical Lock Control Steering ColumnManual Tilt-Wheel and Telescoping Steering ColumnSingle Speed Transfer CaseProGrade Trailering SystemOnStar and GMC Connected Services CapableLED Cargo Area LightingSteering Wheel Audio ControlsRear Dual USB Charging-Only PortsTheft Deterrent System (unauthorized Entry)Front Frame-Mounted Black Recovery Hooks4G LTE Wi-Fi Hotspot CapableTrailering PackageSLT Preferred PackagePremium GMC Infotainment System Radio with NavigationWireless ChargingPremium Bose 7-Speaker Sound System Safety and Security 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.Technology and Telematics Without the need for a manufacturer specific app to be installed on the smart device, the vehicle infotainment system can access and control functions of a smart device physically plugged-into the vehicle. Without the need for a manufacturer specific app to be installed on the smart device, the vehicle infotainment system can access and control functions of a smart device physically plugged-into the vehicle. Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network. Mobile devices can wirelessly connect to the internet through the vehicle's private mobile network. EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, 6.2L ECOTEC3 V8, TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED, GVWR, 7100 LBS. (3221 KG), REAR AXLE, 3.23 RATIO, WHEELS, 20" X 9" (50.8 CM X 22.9 CM) POLISHED ALUMINUM, TIRES, 275/60R20SL ALL-TERRAIN, BLACKWALL, TIRE, SPARE 255/80R17SL ALL-SEASON, BLACKWALL, SEATS, FRONT BUCKET, DARK WALNUT/SLATE, PERFORATED LEATHER-APPOINTED FRONT OUTBOARD SEAT TRIM, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8" DIAGONAL COLOR TOUCH-SCREEN, INCLUDES MULTI-TOUCH DISPL

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 14 MPG
    • Hwy: 20 MPG
    • Combined: 16 MPG
  • Fuel System
    • Fuel System: Direct Injection
  • Fuel Tank Capacity
    • Fuel Tank Capacity: 24 gal
  • Fuel Type
    • Fuel Type: Gasoline Fuel
  • Horse Power
    • Horse Power: 420
  • Rear Wheel
    • Rear Wheel: Single
  • Trailering Capacity
    • Trailering Capacity: 0
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May not represent actual vehicle. (Options, colors, trim and body style may vary)

The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.