This 2021 GMC Yukon AT4 in white represents a premium three-row SUV built for families who demand capability, comfort, and refined styling.
- Second row bucket seats with power release
- Power-retractable assist steps with perimeter lighting
- Dual-pane panoramic power sunroof with express-open and close
- Technology Package featuring HD Surround Vision, Head-Up Display, and Rear Pedestrian Alert
- Power-sliding center floor console with secure storage
- Bose 9-speaker stereo audio system
- Hands-free power programmable rear liftgate
- 15" diagonal multi-color head-up display
- Apple CarPlay and Android Auto integration
- Heated and ventilated driver and front passenger seats
- 12-way power seat adjusters
- 3rd row 60/40 power-folding split-bench seat
- Magnetic Ride Control suspension
- 20" machined aluminum six-spoke wheels
- OnStar with emergency communication and GMC connected services
The AT4 trim level emphasizes off-road capability with its 4WD system, front high-approach angle fascia, and red horizontal-mounted recovery hooks. The EcoTec3 5.3L V8 engine delivers the power you expect from a full-size SUV, while the 10-speed automatic transmission with overdrive provides refined highway performance. This truck achieves 16 mpg in the city and 20 mpg on the highway, making it practical for both daily driving and longer journeys.
Inside, the cabin showcases genuine perforated leather seating surfaces that elevate the driving experience. Three rows of seating accommodate up to nine passengers, with power-folding third-row seats that maximize cargo flexibility. The second row features independent bucket seats with power release, while both front seats offer heating and ventilation for year-round comfort. A heated steering wheel and automatic temperature control with front and rear zones ensure everyone travels comfortably.
Technology is woven throughout this vehicle. The head-up display projects essential information onto the windshield, while the HD Surround Vision system provides enhanced awareness during parking and maneuvering. Rear Pedestrian Alert adds an extra layer of safety awareness. Hill Descent Control assists on challenging terrain, and the Safety Alert Seat provides tactile warnings when lane departure or collision risks are detected. Lane Keep Assist and Lane Change Alert with Side Blind Zone Alert help you maintain your intended path.
Convenience features include a power panoramic sunroof with express-open capability, power-adjustable outside mirrors with heating, power windows, and a universal home remote. The power-sliding center console drawer provides secure storage for valuables, while 20-inch machined aluminum wheels and a roof-mounted luggage rack complete the purposeful exterior.
The Yukon AT4 combines substantial size with responsive handling through its four-wheel independent suspension and magnetic ride control. Brake assist, electronic stability control, traction control, and four-wheel disc brakes with ABS provide confidence in all driving conditions.
This vehicle is ready to serve your family with the space, capability, and refinement a three-row SUV should deliver. We invite you to schedule a test drive and experience the Yukon AT4 firsthand.
2021 GMC Yukon AT4
- Used
Finance Terms
Mercedes-Benz of El Paso
Call 866-764-1365
We’re here to help
The highlights
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
- Auto-dimming rearview mirror
- 3rd row seats
The full specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar Guidance
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear air conditioning
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Steering wheel memory
- Telescoping steering wheel
- Tilt steering wheel
- Trunk/hatch auto-latch
- Adaptive suspension
- Alloy wheels
- Four wheel independent suspension
- Front anti-roll bar
- Front tires: 275/60SR20.0
- Power steering
- Rear anti-roll bar
- Rear tires: 275/60SR20.0
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 20"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 10.2"
- Smart device integration: Android Auto/Apple CarPlay
- Speaker type: Bose
- Speakers: 9
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless phone connectivity: Bluetooth
- 3rd row seats: split-bench
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Power 4-way driver lumbar support
- Power 4-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats Folding position: tumble forward
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Compressor: Not Available
- Cylinder configuration: V-8
- Cylinder deactivation
- Drive type: four-wheel
- Engine liters: 5.3L
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 18mpg
- Fuel economy highway: 20mpg
- Fuel tank capacity: 24.0gal.
- Horsepower: 355hp @ 5,600RPM
- Hybrid traction battery type: none
- Manual-shift auto: Driver Shift Control
- Mode select transmission
- Number of valves: 16
- Recommended fuel: Regular Unleaded
- Standard fuel economy fuel type: gasoline
- Torque: 383 lb.-ft. @ 4,100RPM
- Transmission: 10 speed automatic
- Variable valve control
- Approach angle: 32 deg
- Departure angle: 21 deg
- Ground clearance (min): 203mm (8.0")
- Ramp breakover angle: 19 deg
- Auto-dimming door mirrors
- Bumpers: body-color
- Door mirrors: body-color
- Heated door mirrors
- Power door mirrors
- Power liftgate
- Rear cargo: power liftgate
- Skid plates
- Spoiler
- Trailer hitch receiver
- Trailer sway control
- Turn signal indicator mirrors
- 3rd row headroom: 970mm (38.2")
- 3rd row hiproom: 1,255mm (49.4")
- 3rd row legroom: 886mm (34.9")
- 3rd row shoulder room: 1,593mm (62.7")
- Compression ratio: 11.00 to 1
- Curb weight: 2,575kg (5,677lbs)
- Engine bore x stroke: 96.0mm x 92.0mm (3.78" x 3.62")
- Engine displacement: 5.3 L
- Engine horsepower: 355hp @ 5,600RPM
- Engine torque: 383 lb.-ft. @ 4,100RPM
- Exterior body width: 2,057mm (81.0")
- Exterior height: 1,943mm (76.5")
- Exterior length: 5,334mm (210.0")
- Front hiproom: 1,562mm (61.5")
- Front legroom: 1,130mm (44.5")
- Front shoulder room: 1,676mm (66.0")
- GVWR: 3,402kg (7,500lbs)
- Interior maximum rear cargo volume: 3,480 L (123 cu.ft.)
- Interior rear cargo volume: 722 L (26 cu.ft.)
- Payload: 772kg (1,702lbs)
- Rear hiproom: 1,557mm (61.3")
- Rear legroom: 1,067mm (42.0")
- Rear shoulder room: 1,646mm (64.8")
- Towing capacity: 3,493kg (7,700lbs)
- Turning radius: 6.1m (19.8')
- Wheelbase: 3,071mm (120.9")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Delay-off headlights
- Exterior parking camera rear: HD Rear Vision Camera yes
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Outside temperature display
- Parking sensors: Front and Rear Park Assist front and rear
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Rear window wiper
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Automatic Emergency Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Security system
- Tracker system
- Traction control
Notes from the dealer
Track your progress
Peace of mind
Vehicle history report
- Title information
- Odometer readings
- Accident data (if applicable)
- Service history
- Vehicle usage
- Recall information (if applicable)
- Warranty status
Optional add-on protection
- GAP Protection
- Lifetime Powertrain
- Tires and Wheels
- Paint Protection
A name you can trust
Mercedes-Benz of El Paso 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.
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