2021 GMC Yukon XL SLT

  • Used
$43,999Price
$44,397Final Price
MARK SWEENEY BUICK GMC INC
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    The overview

    Exterior Color
    White Frost Tricoat
    Interior Color
    (1st and 2nd rows only.)
    Odometer
    69,883 miles
    Fuel Economy
    15/19 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4x4
    Engine
    Engine: 5.3L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
    VIN
    1GKS2GKD0MR279077
    Stock Number
    BB279077
    • AutoCheck
    • Max seating capacity: 7
    • Fuel System: Direct Injection
    • Fuel tank capacity: 28 gal
    • Horsepower: - TBD -

    Notes from the dealer

    This 2021 GMC Yukon XL SLT delivers commanding presence and versatile capability for families and professionals who demand both space and performance.

    - Second Row Power Release Bucket Seats with secure storage and manual sliding armrest
    - Power-Sliding Center Console Floor with drawer and cup holders
    - Dual-Pane Panoramic Power Sunroof
    - 10.2 Diagonal GMC Infotainment System with Navigation
    - Rear Seat Media System
    - Bose 9-Speaker Premium Audio with SiriusXM 360L
    - Heated and Ventilated Front Seats with 12-Way Power Adjusters
    - 3rd Row 60/40 Power-Folding Split-Bench Seat
    - Automatic Emergency Braking with Front Pedestrian Braking
    - Lane Keep Assist with Lane Departure Warning
    - HD Surround Vision with rear Cross Traffic Alert
    - Power-Adjustable Outside Heated Mirrors with memory settings
    - Heated Automatic Steering Wheel
    - Premium Smooth Ride Suspension with four-wheel independent design
    - Apple CarPlay and Android Auto compatibility

    The white exterior combined with white frost tricoat delivers lasting visual appeal that turns heads while maintaining classic GMC styling. Inside, perforated leather seating surfaces and heated driver and front passenger seats create a refined environment for daily driving and long journeys alike.

    This full-size SUV accommodates up to nine passengers across three rows, with power-folding third-row seats that expand your cargo flexibility. The second-row bucket seats offer individual comfort with power release mechanisms, while the power-sliding center console maximizes storage without sacrificing functionality.

    The EcoTec3 5.3L V8 engine paired with a 10-speed automatic transmission with overdrive provides balanced performance and efficiency. Four-wheel drive capability ensures confidence on varied road conditions, while the 3.23 rear axle ratio supports the vehicle's substantial capabilities. With 70,000 miles on the odometer, this Yukon XL has been well-maintained and is ready for continued service.

    Safety features include dual front impact airbags, dual front side impact airbags, and overhead airbags throughout the cabin. Automatic emergency braking, lane keep assist, and rear cross traffic alert work together to support attentive driving. The vehicle comes equipped with OnStar and GMC connected services capability for added security and convenience.

    Climate control is comprehensive, with automatic temperature control, front dual zone air conditioning, rear air conditioning, and a rear window defroster ensuring comfort for all passengers throughout the year. The 4-wheel disc braking system with ABS provides confident stopping power in all conditions.

    This 2021 GMC Yukon XL SLT represents a capable, well-equipped full-size SUV ready to serve your family and lifestyle needs. We invite you to visit our showroom to experience the spacious interior, refined materials, and commanding driving position that define this vehicle's appeal.

    KBB.com Consumer Reviews

    Kelley Blue Book Logo3.6out of 5 overall
    • 5.0

      Excellent Machine, Safety Features are Excessive

      by BenInKentucky on 7/14/2026 10:14:58 PM

      First, get the diesel. This is our 3rd diesel Yukon and they are amazing. Great mileage, great resale value, plenty of horse power, and the range for one tank of fuel can be very convenient on long road trips. The extra room in the XL model is also convenient for luggage if you have a large family and enjoy the ability to see out the back windows. The 10 speed transmission is smooth and it will glide down the interstate at any speed with ease at very low engine RPM. The only real downside to this vehicle are the overbearing safety features. If I look over at the navigation screen it vibrates the seat and tells me I am distracted. The auto-cruise (self-driving) feature will randomly hit the breaks in the middle of the highway. The backup camera will slam on the breaks if it sees any movement behind the vehicle even if it is way out of range. The back hatch opens automatically if you walk past it with the key in your pocket. If I lean too far on to the center console it will vibrate the seat and tell me I am distracted. We use this vehicle on the farm and there is no way to disable the seat belt alarm. We spent about an hour going through all of the settings and were able to disable most of the annoying features. I find putting a business card in front of the camera that looks at my face cures many of these frustrations and I may opt for a more permanent piece of black electrical tape that will blend in seamlessly. The auto stop feature is also frustrating but like the EPA gas cans I believe most of America is dealing with this frustration and it is not limited to this vehicle. Overall, we love the vehicle and will buy another one.
    • 5.0

      No Problems Yet

      by CoachTroy72 on 6/17/2026 11:26:04 PM

      I got my 26 Yukon Denali SUV with 3 miles on it. Got to 308 and had engine knock. Took it to Classic GMC, they had it a week. Flushed out the engine debris, no knocking. Also they changed the oil. Not from 0-20w to 40w, but just changed it with the same OEM AC Delco standard Dexos, no more knocking. Now at 1238 miles havent had any issues. Actually getting 22.3 MPG! For a truck that is 17 city 20 Hwy..
    • 5.0

      Love everything about my Elevation, except…

      by Carol Ann on 6/3/2026 5:57:12 PM

      This truck has excellent get up and go power, great traction control and steering, with an impressive turning radius, love the large dash display screen, sleek design inside and out, and the suspension makes for comfortable long highway and city driving. Surrounded in cool luxury, state of the art sound system while feeling like a VIP in my classy black FBI looking whip.
    Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

    1Dealer Discount applied to everyone