
2021 GMC Yukon AT4
- Used
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
The leather seats in this GMC Yukon are a must for buyers looking for comfort, durability, and style. Start this model from inside with remote start. This 2021 GMC Yukon has a clean CARFAX vehicle history report. See what's behind you with the back up camera on it. This vehicle offers Apple CarPlay for seamless connectivity. Keep your hands warm all winter with a heated steering wheel in the GMC Yukon . The vehicle's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. It's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. It features a high end BOSE stereo system. It stays safely in its lane with Lane Keep Assist. The GMC Yukon comes equipped with Android Auto for seamless smartphone integration on the road. Bluetooth technology is built into this model, keeping your hands on the steering wheel and your focus on the road.
Packages
Technology Package: HD Surround Vision; 15 Diagonal Multi-Color Head-Up Display; Rear Pedestrian Alert. Preferred Equipment Group 4SB: Bright Front and Rear Door Sill Plates; Power Release 2nd Row 60/40 Split-Folding Bench Seat; 2 Presets For Outside Rearview Mirrors; 12-Way Power Seat Adjusters; 3rd Row 60/40 Power-Folding Split-Bench Seat; Safety Alert Seat; Hill Descent Control; Heavy-Duty Air Filter; Heated Automatic Steering Wheel; Heated Driver and Front Passenger Seats; Universal Home Remote; Heated 2nd Row Outboard Position Seats; Front Skid Plate; Front High-Approach Angle Fascia; Hands-Free Power Programmable Rear Liftgate; Bose 9-Speaker Stereo Audio System Feature; 2-Speed Electronic Autotrac Active Transfer Case; GMC Pro Safety Plus; Red Horizontal-Mounted Recovery Hooks; Heated and Ventilated Driver and Front Passenger Seats; Power Tilt and Telescopic Steering Column; Black Roof-Mounted Luggage Rack Side Rails; 275/60R20SL AT BW Tires; Magnetic Ride Control Suspension; Inside Rearview Auto-Dimming Mirror; Wheels: 20 X 9 6-Spoke Machined Aluminum; Outside Heated Power-Adjustable Mirrors. Dual-Pane Panoramic Power Sunroof. Power Release 2nd Row Bucket Seats. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
KBB.com Consumer Reviews on this vehicle
- 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!