ALL VEHICLES SUBJECT TO A $225 DEALER DOC FEE. NEW VEHICLES PRE-LOADED WITH OUR VIP PACKAGE FOR $2995. THIS INCLUDES 1 YEAR OIL CHANGES AND TIRE ROTATIONS. ONE YEAR INTERIOR AND EXTERIOR PROTECTION. WINDOW TINT, ALL-WEATHER FLOOR MATS, AND WHEEL LOCKS. 1 YEAR THEFT PROTECTION. LIFETIME POWERTRAIN WARRANTY* SOME EXCLUSIONS APPLY TO THE LIFETIME WARRANTY
- Power release second row bucket seats
- AT4 Premium Plus Package with Max Trailering Package
- Dual-pane panoramic power sunroof
- Bose 9-speaker stereo audio system with SiriusXM 360L
- Rear seat media system with navigation
- 15-inch multi-color head-up display
- Air ride adaptive suspension with electronic limited slip differential
- Heated and ventilated front seats with 12-way power adjusters
- Power-retractable assist steps with perimeter lighting
- HD surround vision with rear pedestrian alert
- Hands-free power programmable rear liftgate
- Lane keep assist with lane departure warning and lane change alert
- Front and rear park assist with trailer side blind zone alert
- 20-inch machined aluminum wheels
- Hill descent control with safety alert seat
This 2021 GMC Yukon XL AT4 delivers the capability and refinement you expect from a premium full-size SUV. The Gray exterior presents a sophisticated appearance, while the spacious interior accommodates your family and cargo with confidence. With seating for up to nine passengers and flexible configurations, this vehicle adapts to your lifestyle whether you're hauling gear for a weekend adventure or navigating daily responsibilities.
The 5.3L V8 engine paired with a 10-speed automatic transmission provides strong performance, achieving 15 city and 19 highway MPG. The 4WD system with active response technology enhances traction and stability across various road conditions, while the advanced air ride suspension adjusts to optimize comfort and handling. The integrated trailer brake controller and trailering app make towing straightforward and secure.
Inside, the AT4 Premium Plus Package elevates your driving experience with premium comfort and technology features. Heated and ventilated front seats, a heated steering wheel, and rear seat heating ensure comfort throughout the year. The Bose audio system delivers clear, rich sound, while SiriusXM 360L satellite radio keeps you connected to entertainment and information.
Advanced technology and safety features work together to keep you confident on the road. The 15-inch head-up display presents critical information directly in your line of sight, while HD surround vision and rear pedestrian alert enhance awareness. Lane keep assist, forward collision alert, and automatic emergency braking provide an extra layer of protection for you and your passengers.
The dual-pane panoramic sunroof and power-retractable assist steps with perimeter lighting add distinctive touches to the exterior. The roof-mounted luggage rack accommodates additional storage, while the power-operated liftgate simplifies loading. Every detail of the AT4 package reflects thoughtful design and practical capability.
This is a vehicle built for those who value both performance and presence. The 2021 GMC Yukon XL AT4 combines the space and utility you need with the refinement and technology you deserve. We invite you to experience it firsthand and discover how it fits your world.
2021 GMC Yukon XL AT4
- Used
$38,130Asking Price
$38,355Price
Vanguard GMC of Carrollton
Call 469-521-7652
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The full specifications
- Max seating capacity: 7
- Fuel System: Direct Injection
- Fuel tank capacity: 28 gal
- Horsepower: - TBD -
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Vanguard GMC of Carrollton is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
More about usKBB.com Consumer Reviews
- 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.
“Vehicle pricing includes all offers and incentives. Tax, title, $225 document preparation fee and License as well as Dealer Installed Options are not included in vehicle pricing and must be paid by the purchaser. Residency restrictions apply. See dealer for details.”
*While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with Vanguard Automotive Group.
"Vehicle pricing includes all offers and incentives. Tax, title, $225 document preparation fee and License as well as Dealer Installed Options are not included in vehicle pricing and must be paid by the purchaser. Residency restrictions apply. See dealer for details."
*While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with Vanguard Automotive Group.