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Dave Sinclair Buick GMC · St Louis, MO

2026 GMC Yukon XL AT4

208 miles · suv

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelYukon XL
TrimXL AT4
Stock numberT261780
Mileage208 miles
BodySport Utility Vehicle [SUV]
Engine5.3L V8 engine
Cylinders8
Displacement5.3L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG14 city / 19 hwy
ExteriorOnyx Black
Towing7500

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 T261780 for further details. WHY THIS VEHICLE? AT4 Premium Package ($4,890 value)Power-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 SensorPreferred 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 SuspensionFloor Liner Package ($495 value)All-Weather Cargo Mat1st and 2nd Rows All-Weather Floor Liners3rd Row All-Weather Floor Liners 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. Rear camera with washer - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. Even if there are sloppy conditions, the washer keeps the camera's view clean. Rear camera with washer is an extra set of eyes that's both convenient and safeTechnology and Telematics Apple CarPlay/Android Auto smart device wireless mirroring Mobile hotspot - WiFi on the fly. Connect your devices to the Internet through your vehicles private mobile hotspot and take the internet wherever your journey takes you, without eating up your data allowance. Find the hotspot with mobile hotspot. 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 PACKAGE, TECHNOLOGY PACKAGE, LPO, FLOOR LINER PACKAGE, ADVANCED SECURITY PACKAGE, SUNROOF, POWER PANORAMIC, DUAL-PANE, TILT-SLIDING, ASSIST STEPS, POWER-RETRACTABLE WITH PERIMETER LIGHTING, SEATS, SECOND ROW BUCKET, POWER RELEASE, CONSOLE, FLOOR, POWER-SLIDING CENTER, LPO, ALL-WEATHER FLOOR LINERS, 1ST AND 2ND ROWS, LPO, ALL-WEATHER FLOOR LINERS, 3RD ROW, HEAD-UP DISPLAY, 15" DIAGONAL MULTI-COLOR, SENSOR, VEHICLE INCLINATION, SENSOR, VEHICLE INTERIOR MOVEMENT, SENSOR, GLASS BREAKAGE, THEFT-DETERRENT ALARM SYSTEM, CONTENT THEFT ALARM, REAR CAMERA MIRROR, INSIDE REARVIEW AUTO-DIMMING, LPO, ALL-WEATHER CARGO MAT Please do not hesitate to contact us with any questions you may have. Our staff is

Features & options (250)

  • Adaptive Cruise Control
  • 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
  • Automatic Climate Control
  • Entertainment System
  • 2nd Row Captain/Bucket Seat
  • 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
  • Wi-Fi Hotspot capable
  • 5G Wi-Fi hotspot capable
  • SiriusXM with 360L Trial Subscription
  • Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
  • Deep-tinted glass
  • Tint on rear side windows and rear liftgate window
  • Body-color door handles
  • Rear Camera Washer
  • Front fascia with high-approach angle
  • LED tail lamps with animated lighting
  • Help improve visibility in low-light conditions
  • 17" full-size spare steel wheel
  • Rear intermittent wiper
  • Variable-speed
  • Keeps your rear window clear to help enhance visibility
  • Black roof-mounted side rails
  • Enhances the appearance of your vehicle
  • Glass, driver and front passenger laminated front door window
  • LED headlamps with animated lighting
  • Help improve down-the-road visibility in low-light conditions
  • Body-color heated, driver-side auto-dimming power outside mirrors
  • Power-folding feature lets you fold the mirrors in
  • Acoustic laminated glass
  • Helps keep out traffic and road noises
  • 20" all-terrain blackwall tires
  • P275/60R20
  • AutoSense Power Liftgate
  • AutoSense can be disabled or enabled utilizing the center touchscreen
  • LED fog lamps
  • Help minimize glare in adverse driving conditions
  • Glass, windshield shade band
  • Spare tire carrier
  • Lockable winch-type, located under frame in rear
  • Rainsense automatic wipers
  • 17" all-season blackwall spare tire
  • P265/70R17
  • 20" machined and painted Carbon Flash Metallic wheels
  • Paired with all-terrain blackwall tires
  • Painted mirror caps
  • Body-color on Elevation, Denali and Denali Ultimate
  • Gloss Black on AT4 and AT4 Ultimate
  • 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
  • May require additional optional equipment
  • Panoramic power sunroof
  • Tilts upwards for extra ventilation
  • Retracts into the roof
  • Dual panel glass
  • Onyx Black
  • Seat trim, Perforated Leather
  • Carpeted floor covering
  • Color-keyed
  • Universal Home Remote
  • Power windows with front passenger express-up/down
  • 4-way power driver and front passenger lumbar control
  • You can always override the feature and take control
  • Steering column lock
  • Driver and front passenger visors with illuminated mirrors
  • Include covered mirrors
  • Extendable for enhanced shading coverage
  • Memory settings
  • Power windows with rear express-down
  • Quickly lowers the window with the touch of a button
  • Rear air conditioning
  • Heated second row outboard seats
  • Passengers have their own controls to set the perfect temperature
  • Seat adjuster, front passenger 8-way power
  • Tri-zone automatic climate control
  • Keyless Open
  • Lockout protection helps you avoid locking keys in the vehicle
  • Third row USB ports
  • 2 type-C, charge-only
  • Located in the outboard seating areas, above the cup holders
  • Power windows with driver express-up/down
  • Interior lighting
  • Dome light
  • Map lights in front and second row seat positions
  • 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
  • Bright sill plates
  • Front and rear doors
  • AT4 and AT4 Ultimate include branded sill plates
  • Denali and Denali Ultimate include branded sill plates
  • Heated driver and front passenger seats
  • Individually controlled
  • Display, automatic occupant sensing
  • Front bucket seats
  • Cabin Air Filter
  • Helps keep your cabin air fresh from dust and particulates
  • 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
  • 120-volt power outlets
  • Heated and ventilated driver and front passenger seats
  • Steering-wheel mounted controls
  • Seat adjuster, front passenger 4-way power
  • Front console USB ports
  • 2 type-A and C, charge and data
  • Located on front console
  • Safety Alert Seat
  • You can also switch to beeping crash avoidance alerts
  • Assist handles
  • Front passenger A-pillar and second row outboard B-pillar
  • Wrapped steering wheel
  • Rear window defogger
  • 11" diagonal color Driver Information Center
  • High-contrast display with local backlight dimming
  • Power door locks
  • Programmable
  • Center console USB ports
  • Located inside center console
  • Overhead assist handles
  • Driver and front passenger, located in headliner
  • Uses induction technology for portable electronic devices
  • Conveniently charge your phone while driving
  • Located below the instrument panel
  • Warning tones
  • 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
  • First and second row all-weather floor liners
  • Help protect your interior from road debris and the elements
  • Contoured to fit the first and second rows
  • Forest Storm with Mahogany Accents, Perforated leather seating surfaces (Interior color has lighter/darker two-tone effect.)
  • Third row all-weather floor liner
  • Protect your vehicle from road debris and the elements
  • Contoured to fit the third row
  • 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
  • Red recovery hooks
  • Two front horizontal frame-mounted
  • 7,700 lbs. GVWR
  • Performance Front Skid Plate
  • Helps provide underbody protection
  • Heavy-duty 730 cold-cranking amps battery
  • Maintenance-free with rundown protection and retained accessory power
  • 220-amp alternator
  • Autotrac 2-speed transfer case
  • Automatically engages 4WD until traction is regained
  • 4-wheel drive
  • 4-wheel antilock disc brakes
  • Suspension, rear multi-link with coil springs
  • Mechanical limited-slip rear differential
  • Heavy-Duty Air Filter
  • Electronic Precision Shift
  • Steering column-mounted electronic gear shift selector
  • Key Card
  • Mechanical jack with tools
  • Magnetic Ride Control
  • Enhances traction and allows more precise steering
  • Suspension, front coil-over-shock with stabilizer bar
  • Automatic Stop/Start disable button
  • Steering, power
  • 3.23 rear axle ratio
  • Dual-outlet exhaust
  • Dual system with dual rectangular twin polished stainless-steel tips
  • Trailering equipment
  • Trailering hitch platform
  • 2" trailering receiver
  • Emissions, Federal requirements
  • Floor Liner Package
  • All-weather cargo mat
  • 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
  • Technology Package
  • Head-Up Display
  • Option/package discount
  • IntelliBeam
  • 7 airbags
  • Frontal airbags for driver and front passenger
  • Driver inboard seat-mounted side-impact airbag
  • Seat-mounted side-impact airbags for driver and front passenger
  • Head-curtain airbags for front and rear outboard seating positions
  • Blind Zone Steering Assist
  • Side Bicyclist Alert
  • Forward Collision Alert
  • Traffic Sign Recognition
  • Can display detected speed limit signs in your instrument cluster
  • Teen Driver
  • Rear Seat Reminder
  • Buckle to Drive
  • Rear Pedestrian Alert
  • Limited nighttime and low visibility performance
  • Rear child security door locks
  • Tire Pressure Monitoring System
  • Includes Tire Fill Alert
  • HD Surround Vision
  • Can help you park or avoid vehicles and objects
  • Hill Descent Control
  • Uses antilock braking to help provide a smooth, controlled descent
  • Hill Start Assist
  • Automatically releases once you press down on the accelerator
  • Enhanced Automatic Parking Assist
  • Can also help you unpark your vehicle
  • Lane Keep Assist with Lane Departure Warning, enhanced
  • You may receive additional Lane Departure Warning alerts if needed
  • OnStar services capable

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$79,625Dealer asking price · 208 mi
Market value$85,277Market value · based on 5 comparable cars
vs. market Good deal-6.6%Good deal · based on 5 comparable cars

Where this price sits

Among the lowest-priced · 80% of 5 similar listings ask more than this car.

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

Price vs. market value

-6.6%
−25%Market value+25%
Good deal$5,652 below the market value of $85,277

Price range

$79,625
$79,484$87,067
2nd 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 $5,652 below the market value of 5 comparable cars.
  • 2nd lowest price of 6 similar listings within 50 miles.
  • About 208 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # T261780 — 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 ($79,625).0 price changes at this dealership: $79,625 → $79,625.

$79.4k$79.5k$79.6k$79.7k$79.8k$79.9kNov 6Nov 7Nov 8Nov 9Nov 10Nov 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 11); 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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