Used 2021 GMCYukon XL AT4 SUVfor Sale in Myrtle Beach
- Exterior Color
- Summit White
- Interior Color
- Jet Black/Brandy
- Odometer
- 77,397 miles
- Fuel Economy
- 15/19 MPG City/Hwy
- Transmission
- 10-Speed Automatic with Overdrive
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GKS2HKD4MR452802
- Stock Number
- G12924A
Highlighted Features
- 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
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Included Packages & Accessories
- Navigation System
- License Plate Front Mounting Package
- Preferred Equipment Group 4SB
- 9 Speakers
- AM/FM radio: SiriusXM with 360L
- Bose 9-Speaker Stereo Audio System Feature
- HD Radio
- Radio: AM/FM/SiriusXM
- SiriusXM w/360L
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear air conditioning
- Rear window defroster
- Hands-Free Power Programmable Rear Liftgate
- Memory seat
- Power driver seat
- Power steering
- Power windows
- Remote keyless entry
- Steering wheel memory
- Steering wheel mounted audio controls
- Universal Home Remote
- Adaptive suspension
- Auto-leveling suspension
- Four wheel independent suspension
- Heated Automatic Steering Wheel
- Magnetic Ride Control Suspension
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Emergency communication system: OnStar and GMC connected services capable
- Front anti-roll bar
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Rear anti-roll bar
- Dual-Pane Panoramic Power Sunroof
- Power Liftgate
- Brake assist
- Electronic Stability Control
- Front & Rear Park Assist
- Hill Descent Control
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Speed control
- Heavy-Duty Air Filter
- Not Equipped w/Automatic Stop/Start
- Auto-dimming door mirrors
- Bright Front & Rear Door Sill Plates
- Bumpers: body-color
- Front High-Approach Angle Fascia
- Heated door mirrors
- IntelliBeam Automatic High Beam On/Off
- Outside Heated Power-Adjustable Mirrors
- Power door mirrors
- Red Horizontal-Mounted Recovery Hooks
- Roof rack: rails only
- Spoiler
- Turn signal indicator mirrors
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Compass
- Driver door bin
- Driver vanity mirror
- Floor Console
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- Front reading lights
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Inside Rear-View Auto-Dimming Mirror
- Lane Change Alert w/Side Blind Zone Alert
- Lane Keep Assist w/Lane Departure Warning
- Leather steering wheel
- Not Equipped w/Steering Column Lock
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Power Tilt & Telescopic Steering Column
- Rear Cross Traffic Alert
- Rear reading lights
- Rear seat center armrest
- Safety Alert Seat
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- 12-Way Power Seat Adjusters
- 2 Presets For Outside Rearview Mirrors
- 3rd Row 60/40 Power-Folding Split-Bench Seat
- 3rd row seats: split-bench
- Front Bucket Seats
- Front Center Armrest
- Heated & Ventilated Driver & Front Passenger Seats
- Heated 2nd Row Outboard Position Seats
- Heated Driver & Front Passenger Seats
- Heated front seats
- Heated rear seats
- Perforated Leather Seating Surfaces
- Power passenger seat
- Power Release 2nd Row 60/40 Split-Folding Bench Seat
- Power Release 2nd Row Bucket Seats
- Split folding rear seat
- Ventilated front seats
- Black Roof-Mounted Luggage Rack Side Rails
- Passenger door bin
- Alloy wheels
- Wheels: 20" x 9" 6-Spoke Machined Aluminum
- Rain sensing wipers
- Rear window wiper
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
- One Owner
- Clean Carfax
Detailed 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: 15mpg
- Fuel economy combined: 17mpg
- Fuel economy highway: 19mpg
- Fuel tank capacity: 28.0gal.
- 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: 20 deg
- Ground clearance (min): 203mm (8.0")
- Ramp breakover angle: 16 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: 932mm (36.7")
- 3rd row shoulder room: 1,595mm (62.8")
- Compression ratio: 11.00 to 1
- Curb weight: 2,649kg (5,841lbs)
- 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: 5,720mm (225.2")
- Front hiproom: 1,562mm (61.5")
- Front legroom: 1,130mm (44.5")
- Front shoulder room: 1,676mm (66.0")
- GVWR: 3,493kg (7,700lbs)
- Interior maximum rear cargo volume: 4,097 L (145 cu.ft.)
- Interior rear cargo volume: 1,175 L (41 cu.ft.)
- Payload: 770kg (1,698lbs)
- Rear hiproom: 1,557mm (61.3")
- Rear legroom: 1,067mm (42.0")
- Rear shoulder room: 1,646mm (64.8")
- Towing capacity: 3,402kg (7,500lbs)
- Turning radius: 6.6m (21.7')
- Wheelbase: 3,406mm (134.1")
- 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
Dealer Notes
- Clean Carfax
- One Owner
Indulge in the convenience of premium features, including:
- Power-sliding center console with secure storage
- Dual-pane panoramic power sunroof
- Bose 9-speaker stereo audio system
- Hands-free power programmable rear liftgate
- Heated automatic steering wheel
This Yukon XL AT4 is equipped to handle any terrain with confidence, thanks to its 4WD drivetrain and impressive capabilities. Elevate your driving experience and explore the great outdoors in style.
The EcoTec3 5.3L V8 engine, paired with a 10-speed automatic transmission, delivers a smooth and responsive performance, while the 19 MPG highway fuel efficiency helps you go the distance.
Discover the ultimate in comfort and luxury with the Yukon XL AT4. Heated and ventilated front seats, along with heated second-row outboard seats, ensure everyone travels in absolute comfort. The power-folding third-row seat provides versatile cargo space when needed.
Safety is paramount in this Yukon, with features like the Safety Alert Seat, Forward Collision Alert, and Automatic Emergency Braking keeping you and your loved ones protected.
Experience the exceptional craftsmanship and capability of the 2021 GMC Yukon XL AT4. Schedule a test drive today and unlock the true potential of this remarkable SUV.
KBB.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.…
All vehicle specifications, prices and equipment are subject to change without notice. See above for information on purchase financing and lease program expiration dates. The estimated payments may not include upfront finance charges that must be paid to be eligible for the purchase financing program used to estimate the APR and payments. Listed Annual Percentage Rates are provided for the selected purchase financing or lease programs available on the current date. Program expiration dates reflect currently announced program end dates, but these programs are subject to change at any time. Lessees will be financially responsible for mileage beyond the elected quantity and for vehicle maintenance and repairs and excessive vehicle wear. Option to purchase at lease end for an amount may be determined at lease signing. Payments may be higher in some states. You may not be able to combine other incentives with the purchase financing or leasing programs presented above. Residency restrictions may apply. See dealer for details. Listed APR, down payment, payments, incentives and other terms are estimates for example purposes only. Information provided is based on very well-qualified buyers or lessees. The payment information provided here is not a commitment by any organization to provide credit, leases or other programs. Some customers may not qualify for listed programs. Your terms may vary. Lessor must approve lease. Credit approval required. Prices and payments (including the amount down payment) do not include tax, titles, tags, emissions testing charges, or other fees required by law or lending organizations. Price includes closing cost. Security deposit is waived on leases.
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