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Dave Sinclair Buick GMC · St Louis, MO

2026 GMC Yukon XL AT4

2 miles · suv

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelYukon XL
TrimXL AT4
Stock numberT261802
Mileage2 miles
BodySport Utility Vehicle [SUV]
Engine5.3L V8 engine
Cylinders8
Displacement5.3L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG14 city / 19 hwy
ExteriorOnyx Black
Towing8000

Vehicle description

Thank you for choosing Dave Sinclair Buick GMC This 2026 GMC Yukon XL AT4, has a Onyx Black exterior and a Forest Storm with Mahogany Accents interior. Please call us at (314) 272-4060 and reference stock number T261802 for further details. WHY THIS VEHICLE? AT4 Premium Plus Package ($8,845 value)Rear Seat Media SystemPremium Capability Package with Active Response 4WDAir Ride Adaptive SuspensionElectronic Limited Slip Differential (eLSD)Max Trailering PackageIntegrated Trailer Brake ControllerHitch ViewSmart Trailer Integration IndicatorBlind Zone Steering Assist with TraileringExtra Capacity Cooling SystemAT4 Premium PackagePower-Retractable Assist StepsDual-Pane Panoramic Power SunroofTechnology PackagePower Release 2nd Row Bucket SeatsFloor ConsoleInside Rearview Auo-Dimming Rear Camera Mirror15" Diagonal Multi-Color Head-Up DisplayAdvanced Security PackageTheft-Deterrent Alarm SystemVehicle Inclination SensorVehicle Interior Movement SensorGlass Breakage SensorEnhanced Trailering Technology PackageTrailering Assist GuidelinesTrailer Camera ProvisionsWired Auxiliary Trailer CameraPreferred Equipment Group 4SB4-Way Power Driver Lumbar Seat Adjuster4-Way Power Front Passenger Lumbar Seat AdjusterBright Front and Rear Door Sill PlatesBody-Color Door HandlesHill Descent ControlHeavy-Duty Air FilterPerforated Heated and Ventilated Driver and Front Passenger SeatsDual Exhaust SystemPower Tilt and Telescopic Steering Column2-Speed Electronic Autotrac Active Transfer Case275/60R20SL AT BW Tires20" X 9" Machined and Painted WheelsFront Skid PlateAutoSense Hands-Free Power LiftgateRed Horizontal-Mounted Recovery HooksBlack Roof-Mounted Luggage Rack Side RailsFront High-Approach Angle FasciaMagnetic Ride Control Suspension Safety and Security Forward collision mitigation - Forward thinking. You look away for just a second and suddenly the vehicle in front of you has stopped. That's when the forward collision mitigation system comes to life. When it senses an impending impact, it will activate a combination of features to help prevent or reduce the severity of an accident. Forward collision mitigation is always looking ahead. Pedestrian impact prevention - An extra step toward safety. Pedestrians don't always stop, look, and listen, but with Pedestrian Impact Prevention, your vehicle is equipped to better see them and avoid them. This system constantly monitors the road ahead to identify and track pedestrians. It projects that image to an interior display screen, AND should an impact become likely, Pedestrian impact prevention takes steps to avoid a collision. Hands-off cruise control - Set it and forget it. Road trips used to be stressful. Cruise control only managed speed, but not distance or safety. Now with hands-off cruise control simply set your desired speed and let sensor technology maintain a safe distance between you and surrounding vehicles with minimal steering input from you. It slows you down; speeds you up and even keeps you in your own lane. Meet your ultimate co-pilot with hands-off cruise control. Super Cruise hands-on cruise control with lane changeTechnology and Telematics Apple CarPlay/Android Auto smart device wireless mirroring EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, 5.3L ECOTEC3 V8, TRANSMISSION, 10-SPEED AUTOMATIC, REAR AXLE, 3.23 RATIO, WHEELS, 20" X 9" (50.8 CM X 22.9 CM) MACHINED AND PAINTED CARBON FLASH METALLIC, ONYX BLACK, SEATS, FRONT BUCKET, FOREST STORM WITH MAHOGANY ACCENTS, PERFORATED LEATHER SEATING SURFACES, AUDIO SYSTEM, 16.8" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM, AT4 PREMIUM PLUS PACKAGE, AT4 PREMIUM PACKAGE, TECHNOLOGY PACKAGE, PREMIUM CAPABILITY PACKAGE WITH ACTIVE RESPONSE 4WD, ENHANCED TRAILERING TECHNOLOGY PACKAGE, MAX TRAILERING PACKAGE, ADVANCED SECURITY PACKAGE, DIFFERENTIAL, ELECTRONIC LIMITED-SLIP (ELSD), TRAILER BRAKE CONTROLLER, INTEGRATED, COOLING SYSTEM, EXTRA CAPACITY, SUSPENSION, AIR RIDE ADAPTIVE, SUNROOF, POWER PANORAMIC, DUAL-PANE, TILT-SLIDING, ASSIST STEPS, POWER-RETRAC

Features & options (250)

  • Super Cruise
  • Adaptive Cruise Control
  • Bluetooth®
  • Heated Steering Wheel
  • Remote Start
  • 3rd Row Seating
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Cooled Seats
  • Heated Seats
  • Keyless Entry
  • Leather Seats
  • Power Tailgate/Liftgate
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Lane Departure Warning
  • Lane Keep Assist
  • Sunroof/Moonroof
  • Wireless Phone Charging
  • Blind Spot Monitor
  • Forward Collision Warning
  • Navigation System
  • Parking Assistance
  • Rear View Camera
  • Tow Hitch/Tow Package
  • Automatic Climate Control
  • Entertainment System
  • Turbo Charged Engine
  • 2nd Row Captain/Bucket Seat
  • Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
  • 16.8" diagonal advanced color LCD display with Google built-in compatibility
  • Includes navigation capability
  • Connected apps, and personalized profiles for each driver's setting
  • Natural voice recognition and phone integration
  • High contrast display with local blacklight dimming
  • Includes climate and vehicle setting controls
  • SiriusXM with 360L Trial Subscription
  • 5G Wi-Fi hotspot capable
  • Wi-Fi Hotspot capable
  • Rear Seat Media System
  • Compatible with Bluetooth® headphones
  • May require additional optional equipment
  • LED tail lamps with animated lighting
  • Help improve visibility in low-light conditions
  • Body-color heated, driver-side auto-dimming power outside mirrors
  • Power-folding feature lets you fold the mirrors in
  • Rear Camera Washer
  • Black roof-mounted side rails
  • Enhances the appearance of your vehicle
  • 20" all-terrain blackwall tires
  • P275/60R20
  • Body-color door handles
  • Rainsense automatic wipers
  • 17" full-size spare steel wheel
  • Spare tire carrier
  • Lockable winch-type, located under frame in rear
  • Rear intermittent wiper
  • Variable-speed
  • Keeps your rear window clear to help enhance visibility
  • AutoSense Power Liftgate
  • AutoSense can be disabled or enabled utilizing the center touchscreen
  • LED headlamps with animated lighting
  • Help improve down-the-road visibility in low-light conditions
  • Glass, windshield shade band
  • Painted mirror caps
  • Body-color on Elevation, Denali and Denali Ultimate
  • Gloss Black on AT4 and AT4 Ultimate
  • Deep-tinted glass
  • Tint on rear side windows and rear liftgate window
  • Front fascia with high-approach angle
  • Glass, driver and front passenger laminated front door window
  • 17" all-season blackwall spare tire
  • P265/70R17
  • Acoustic laminated glass
  • Helps keep out traffic and road noises
  • LED fog lamps
  • Help minimize glare in adverse driving conditions
  • 20" machined and painted Carbon Flash Metallic wheels
  • Paired with all-terrain blackwall tires
  • Power-retractable assist steps with LED perimeter lighting
  • Textured step pads help provide secure footing
  • Extend from wheel well to wheel well
  • Retracts when not in use
  • Panoramic power sunroof
  • Tilts upwards for extra ventilation
  • Retracts into the roof
  • Dual panel glass
  • Front license plate bracket
  • Onyx Black
  • Safety Alert Seat
  • You can also switch to beeping crash avoidance alerts
  • You can always override the feature and take control
  • Heated and ventilated driver and front passenger seats
  • Rear air conditioning
  • Carpeted floor mats
  • Removable color-keyed floor mats for first and second rows
  • Overhead assist handles
  • Driver and front passenger, located in headliner
  • Power tilt and telescoping steering column
  • Use the driver memory to save and recall memory settings
  • Provides extra comfort when entering or exiting the vehicle
  • Power windows with front passenger express-up/down
  • Power windows with rear express-down
  • Quickly lowers the window with the touch of a button
  • Tri-zone automatic climate control
  • 4-way power driver and front passenger lumbar control
  • Seat trim, Perforated Leather
  • Warning tones
  • Seat adjuster, front passenger 4-way power
  • Power door locks
  • Programmable
  • Power 60/40 split-folding third row bench seat
  • Split-folding feature allows each side to fold flat independently
  • Operate power from the overhead console or the cargo area
  • Front bucket seats
  • Front console USB ports
  • 2 type-A and C, charge and data
  • Located on front console
  • Center console USB ports
  • Located inside center console
  • Steering column lock
  • Power windows with driver express-up/down
  • Wrapped steering wheel
  • Interior lighting
  • Dome light
  • Map lights in front and second row seat positions
  • Steering-wheel mounted controls
  • Interior Camera
  • Requires a future software update
  • Keyless Open
  • Lockout protection helps you avoid locking keys in the vehicle
  • Bright sill plates
  • Front and rear doors
  • AT4 and AT4 Ultimate include branded sill plates
  • Denali and Denali Ultimate include branded sill plates
  • Universal Home Remote
  • Seat adjuster, front passenger 8-way power
  • Assist handles
  • Front passenger A-pillar and second row outboard B-pillar
  • Driver and front passenger visors with illuminated mirrors
  • Include covered mirrors
  • Extendable for enhanced shading coverage
  • Third row USB ports
  • 2 type-C, charge-only
  • Located in the outboard seating areas, above the cup holders
  • Carpeted floor covering
  • Color-keyed
  • 11" diagonal color Driver Information Center
  • High-contrast display with local backlight dimming
  • 8-way power driver and front passenger seat adjusters
  • Forward and back
  • Up and down
  • Tilt seat cushion back and upright
  • Recline seatback up and down
  • Cabin Air Filter
  • Helps keep your cabin air fresh from dust and particulates
  • Heated second row outboard seats
  • Passengers have their own controls to set the perfect temperature
  • 120-volt power outlets
  • Display, automatic occupant sensing
  • Memory settings
  • Uses induction technology for portable electronic devices
  • Conveniently charge your phone while driving
  • Located below the instrument panel
  • Rear window defogger
  • Heated driver and front passenger seats
  • Individually controlled
  • Super Cruise, advanced driver assistance technology
  • Allows hands-free driving on compatible roads
  • Includes 3 years of OnStar One with Super Cruise upgrade
  • Forest Storm with Mahogany Accents, Perforated leather seating surfaces (Interior color has lighter/darker two-tone effect.)
  • Rear Camera Mirror
  • The feature also allows brightness, vertical tilt and zoom adjustments
  • 15" diagonal multicolor Head-Up Display
  • Can display directions and other vehicle information
  • Power-sliding center console
  • Includes manual sliding armrest
  • Interior movement sensor
  • Activates the alarm when it senses unauthorized entry or movement
  • Content theft-deterrent system
  • Helps deter potential break-in or theft
  • Power-release second row bucket seats
  • Inclination sensor
  • Glass breakage sensor
  • Smart Trailer Integration Indicator
  • Monitor and control a range of smart trailering features
  • Heavy-duty 730 cold-cranking amps battery
  • Maintenance-free with rundown protection and retained accessory power
  • 220-amp alternator
  • Suspension, front coil-over-shock with stabilizer bar
  • Red recovery hooks
  • Two front horizontal frame-mounted
  • Steering, power
  • Magnetic Ride Control
  • Enhances traction and allows more precise steering
  • Suspension, rear multi-link with coil springs
  • Dual-outlet exhaust
  • Dual system with dual rectangular twin polished stainless-steel tips
  • Heavy-Duty Air Filter
  • Autotrac 2-speed transfer case
  • Automatically engages 4WD until traction is regained
  • 4-wheel antilock disc brakes
  • 3.23 rear axle ratio
  • Mechanical jack with tools
  • Electronic Precision Shift
  • Steering column-mounted electronic gear shift selector
  • Trailering equipment
  • Trailering hitch platform
  • 2" trailering receiver
  • Performance Front Skid Plate
  • Helps provide underbody protection
  • 4-wheel drive
  • Integrated trailer brake controller
  • Enhanced Cooling Radiator
  • Helps maintain optimal performance
  • Electronic Limited-Slip Differential (eLSD)
  • Adaptive Air Ride suspension
  • Delivers automatic load-leveling
  • Emissions, Federal requirements
  • Advanced Security Package
  • Door lock and latch shields
  • Vehicle interior movement sensor
  • Self-powered horn
  • Glass break sensors in rear quarter glass and liftgate window
  • AT4 Preferred Equipment Group includes standard equipment
  • AT4 Premium Package
  • Premium Capability Package with Active Response 4WD
  • Air Ride Adaptive Suspension
  • Active Response 4WD System
  • Enhanced Trailering Technology Package
  • Trailer Camera Provisions
  • Trailering assist guidelines
  • Technology Package
  • Head-Up Display
  • Option/package discount
  • IntelliBeam
  • Hitch Guidance
  • Can help you line up the hitch to your trailer
  • Traffic Sign Recognition
  • Can display detected speed limit signs in your instrument cluster
  • LATCH System
  • Front Pedestrian and Bicyclist Braking
  • Limited nighttime and low visibility performance
  • Side Bicyclist Alert
  • OnStar services capable
  • Rear Pedestrian Alert
  • 7 airbags
  • Frontal airbags for driver and front passenger
  • Driver inboard seat-mounted side-impact airbag

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of St Louis, Missouri
Asking price$85,277Dealer asking price · 2 mi
Market value$84,834Market value · based on 5 comparable cars
vs. market Fair price+0.5%Fair price · based on 5 comparable cars

Where this price sits

In the typical middle range · 40% of 5 similar listings ask more than this car.

$79,484lowest$87,067highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+0.5%
−25%Market value+25%
Fair price$443 above the market value of $84,834

Price range

$85,277
$79,484$87,067
4th lowest price of 6 similar listings within 50 milesTick marks the market value · range of 5 similar listings

AutosXchange Insights

  • Compared with 5 new 2026 GMC Yukon XL AT4 listings within 50 mi.
  • Priced $443 above the market value of 5 comparable cars — compare options, condition and history.
  • 4th lowest price of 6 similar listings within 50 miles.
  • About 2 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # T261802 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 6, 2026. No price change at this dealership since Nov 6 ($85,277).

$85.0k$85.1k$85.2k$85.3k$85.4k$85.5kNov 6Nov 8Nov 9Nov 10Nov 11Nov 12

Market activity: 2026 GMC Yukon XL prices in the Midwest: 32.8% of listings cut in 48 hours

AutosXchange Intel Hub: Price changes for this model in Missouri · This model in the Intel Hub · Market movers in Missouri

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Yukon XL AT4 · new · within 50 miles of St Louis, Missouri. All 5 comparable cars for sale, nearest first.

More GMC Yukon near St Louis

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