Used 2021 GMCYukon XL SLT
- Exterior Color
- Onyx Black
- Interior Color
- (1st and 2nd rows only.)
- Odometer
- 97,063 miles
- Fuel Economy
- 15/19 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: 5.3L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
- VIN
- 1GKS2GKDXMR143457
- Stock Number
- 26T459A
GMC
Yukon XL
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 7
- Fuel System: Direct Injection
- Fuel tank capacity: 28 gal
- Horsepower: - TBD -
Dealer Notes
Here is a compelling advertisement for the 2021 GMC Yukon XL SLT:This impressive 2021 GMC Yukon XL SLT is ready to elevate your driving experience. With its powerful EcoTec3 5.3L V8 engine and 10-speed automatic transmission, this Yukon XL delivers exceptional performance and capability.- SEATS, SECOND ROW BUCKET, POWER RELEASE- Onyx Black exterior with Black interior- SLT LUXURY PLUS PACKAGE - Includes SLT Luxury Package, Max Trailering Package, and Panoramic power sunroofInside, you'll find a wealth of premium features that create an exceptional driving environment:- Bose 9-Speaker Stereo Audio System- Hands-Free Power Programmable Rear Liftgate- Heated Automatic Steering Wheel- Premium Smooth Ride Suspension- Auto High-beam Headlights- Trailer Side Blind Zone Alert- Apple CarPlay/Android Auto- Automatic Emergency Braking- Lane Keep Assist with Lane Departure Warning- Rear Cross Traffic Alert- Heated and Ventilated Front Seats- Heated 2nd Row Outboard Seats- Dual-Pane Panoramic Power SunroofWith its impressive combination of power, technology, and premium comfort, this 2021 GMC Yukon XL SLT is ready to elevate your driving experience. Schedule a test drive today and discover the difference.
KBB.com Consumer Reviews

Overall3.5Out of 5
- 5.0
Great condition
By Tammy | on 4/22/2026 4:05:09 PM
2 years left in warranty Great condition Beautiful Runs great Sterling metallic/teak light shale Diesel 3L… - 5.0
Best Vehicle I've Owned
By PC Burger | on 4/15/2026 8:22:37 PM
Bought a White Diamond color Denali which has exceeded my expectations. Premium materials throughout, especially seats. The mileage has also exceeded my expectations, have experienced a mileage highway best of 25 mpg, normal highway is 21-22 mpg. My combined is 18 mpg, and I burn regular fuel. Premium is 'recommended', not required.......and I burn that when I tow my boat or jet skiis. Warranty is not affected by this. Ride and Handling is supreme. Safety equipment makes the drivability a super experience.… - 5.0
Favorite vehicle we’ve owned
By Smorehead | on 8/15/2025 12:50:43 AM
We have owned ours for three years now. We built ours through the local dealer and got everything we asked for. Great fuel economy considering the size and great quality throughout. The interior is very comfortable and well made. We’ve never had an issue other than a couple recalls that have been taken care of by the dealership immediately. We are constantly on the road with our daughter as she plays travel volleyball and there’s plenty of room for all of her things and she can chill in the third row comfortably. Most of the trips are 4 hours one way and on the highway we see around 21-22MPG. Very happy with this vehicle and with the comfort of the 100k warranty we purchased I feel we will be well into the 6 figure mileage range before we make another purchase!…
All reviews on KBB.com
Based on 19 consumer ratings for 2021–2026 models. | Privacy
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