The 2020 GMC Yukon XL SLT is a full-size SUV built for drivers who demand aggressive capability, commanding presence, and uncompromising space in a vehicle that refuses to play small. This is not a soft crossover pretending to be tough. The Yukon XL SLT delivers real V8 power, professional-grade engineering, and premium comfort in a body-on-frame SUV designed to dominate highways, job sites, and long family road trips with authority.
From the outside, the 2020 Yukon XL SLT makes an immediate statement. Its extended length, wide stance, and bold GMC grille project strength and confidence from every angle. The muscular hood, strong character lines, and signature lighting give it a powerful, upscale look that still means business. Chrome accents and large wheels reinforce its premium edge, while the XL body delivers a presence that simply cannot be ignored. This SUV looks as capable parked as it does rolling at speed.
Under the hood, the Yukon XL SLT brings serious muscle. The V8 engine delivers strong horsepower and torque, providing confident acceleration, smooth highway cruising, and the capability to tow and haul without hesitation. Paired with a refined automatic transmission, power delivery is smooth, responsive, and controlled. The body-on-frame construction gives this SUV true truck-based strength, while the suspension is tuned to balance comfort with stability, even when fully loaded with passengers or cargo. Available four-wheel drive adds traction and confidence in rain, snow, or demanding terrain.
Inside, the 2020 Yukon XL SLT offers a spacious, refined cabin designed for drivers who expect more. Leather-appointed seating, heated front seats, a power-adjustable drivers seat, and premium materials throughout create an upscale environment built for long drives. The XL wheelbase translates into massive interior room, providing generous legroom across all three rows and making this SUV ideal for large families, road trips, or professional use. Excellent visibility and an intuitive layout keep the driver firmly in control.
Technology is integrated where it matters most. The touchscreen infotainment system features smartphone integration, Bluetooth connectivity, navigation capability, and easy-to-use controls that keep you connected without distraction. A premium audio system delivers strong, clear sound throughout the cabin, while multiple USB ports and power outlets keep devices charged for every passenger. Rear-seat entertainment options and tri-zone climate control enhance comfort for everyone on board.
Safety and confidence are built into every mile. The Yukon XL SLT includes a rearview camera, parking sensors, blind spot monitoring, lane change alert, stability control, traction control, and a full airbag system. These features work together to provide added confidence in traffic, tight parking situations, and highway driving, while GMCs solid construction reinforces peace of mind.
Versatility is where the Yukon XL truly dominates. The expansive cargo area offers massive storage even with all three rows in place, and folding rear seats unlock a cavernous load floor capable of handling gear, equipment, or luggage with ease. Strong towing capability makes it ideal for boats, trailers, or work equipment, while the extended length ensures nothing feels cramped or compromised.
The 2020 GMC Yukon XL SLT is bold, powerful, and purpose-built. It delivers aggressive V8 performance, professional-grade strength, premium comfort, and unmatched space in a full-size SUV that refuses to compromise. For drivers who want authority, capability, and presence in every mile, the Yukon XL SLT stands ready to lead.
Used 2020 GMCYukon XL SLT 4WD SLT
- Exterior Color
- Satin Steel Metallic
- Interior Color
- Jet Black
- Odometer
- 62,409 miles
- Body/Seating
- 4WD SLT/7 seats
- Transmission
- Automatic
- Engine
- 8
- VIN
- 1GKS2GKC2LR305829
- Stock Number
- RTBG1329A
GMC
Yukon XL
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Power moonroof
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
Included Packages & Accessories
Detailed Specifications
- 1-touch down
- 1-touch up
- Adjustable pedals
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar and GMC connected services capable
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter: HomeLink
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Pedal memory
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear air conditioning
- Rear beverage holders
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Steering wheel memory
- Sunroof sunshade: manual
- Telescoping steering wheel
- Tilt steering wheel
- Trunk/hatch auto-latch
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Rear anti-roll bar
- Speed-sensing steering
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM
- CD player
- CD-MP3 decoder
- Premium audio system: IntelliLink
- Primary LCD size: 8.0"
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: brand
- 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
- Max seating capacity: 7
- Power 4-way driver lumbar support
- Power 4-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: bucket
- 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 location: front
- Fuel economy city: 14mpg
- Fuel economy combined: 16mpg
- Fuel economy fuel type: gasoline
- Fuel economy highway: 21mpg
- Fuel tank capacity: 31.0gal.
- Hybrid traction battery type: none
- Limited slip differential: mechanical
- Manual-shift auto: Driver Shift Control
- Mode select transmission
- Number of valves: 16
- Rear locking differential
- Recommended fuel: Regular Unleaded
- Variable valve control
- Ground clearance (min): 201mm (7.9")
- Auto-dimming door mirrors
- Bumpers: body-color
- Door mirrors: body-color
- Heated door mirrors
- Power door mirrors
- Power liftgate
- Rear cargo: power liftgate
- Spoiler
- Trailer hitch receiver
- Trailer sway control
- Turn signal indicator mirrors
- 3rd row headroom: 978mm (38.5")
- 3rd row hiproom: 1,252mm (49.3")
- 3rd row legroom: 876mm (34.5")
- 3rd row shoulder room: 1,590mm (62.6")
- Curb weight: 2,652kg (5,846lbs)
- Exterior body width: 2,045mm (80.5")
- Exterior height: 1,890mm (74.4")
- Exterior length: 5,700mm (224.4")
- Front headroom: 1,087mm (42.8")
- Front hiproom: 1,544mm (60.8")
- Front legroom: 1,151mm (45.3")
- Front shoulder room: 1,646mm (64.8")
- GVWR: 3,402kg (7,500lbs)
- Interior cargo volume: 1,113 L (39 cu.ft.)
- Interior maximum cargo volume: 3,446 L (122 cu.ft.)
- Payload: 739kg (1,630lbs)
- Rear headroom: 993mm (39.1")
- Rear hiproom: 1,532mm (60.3")
- Rear legroom: 1,008mm (39.7")
- Rear shoulder room: 1,654mm (65.1")
- Turning radius: 6.6m (21.5')
- Wheelbase: 3,302mm (130.0")
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Delay-off headlights
- Exterior parking camera rear
- 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
- 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
KBB.com Consumer Reviews

Overall3.9Out of 5
- 3.0
Not the best or the worst
By Orion | on Friday, October 23, 2020
I have owned this car four years and purchased new from the dealership. The sticker price was $60k for the XL SLE (base model) but I ended up paying $46k and in my opinion is where the vehicle should be priced. One issue that needed to be fixed immediately after purchase was the body, none of the doors body lines matched up so the doors, hood and fenders were removed and replaced properly. There was also a paint defect so they repainted the passenger side of the vehicle as well. The vehicle lacks refinement for having a base model sticker price of $60k, fully loaded is around $90k. Once in a while the transmission will ‘slam’ into gear making a loud noise almost like you ran something over. The dealership says this is normal which I do not agree with, but if this truly is normal I question why GM would find that acceptable. Like most GM vehicles, the quality degrades quickly past the 3 year mark. You get more engine noise (loud ticking), suspension squeaking and premature interior wear. The drivers seat feels like it shifts from side to side while going around turns. I weigh about 180 lbs so I do not think that is the issue with the seat falling apart. Also like most GM vehicles, it won’t leave you stranded. Despite its lack of refinement I have not spent any money on repairs and the regular recommended maintenance is reasonably priced. The XL has a massive interior and I can easily fit sheet goods (Sheetrock, plywood, etc.) up to 4’x8’ and still able to close the back hatch with room to spare. Even with the 3rd row seats up there is room for luggage and my model which does not have 2nd row captains chairs seats up to 8 people. If you have a lot of kids or always doing large home projects this vehicle is one of a few options out there with this much space. This is also wider than the average minivan so you can easily fit 3 child seats in a row with room between them. Towing capacity on my model isn’t great, it is only 6000 lbs but that is due to the 3.18 gear ratio in the rear differential. This means better MPG since the engine is under 2000 rpm at highway speeds. My issue is that I need more towing capacity and the dealership told me it was much higher than it is. I blame this on myself for not verifying before purchase, I should have known better than to trust a sales person... Driving the XL is easier than it looks. The turning radius is tight so parallel parking or just squeezing into a parking space at the store is not a hassle, even better when you back into a spot with the reverse camera. The camera shows lines to predict where your car will go when you turn the wheel which is a nice feature. Driving in snow is not an issue. Even in a foot of snow I usually do not need the 4x4 but will keep it in auto 4x4 just in case. Once I upgraded to off-road tires it was even more capable in bad weather. Stability control is great too, and prevents you from spinning out of control. If you are buying the largest SUV on the market do not expect exceptional gas mileage. Even with the active fuel management I see about 20 to 24 highway and 15 to 18 around town. For a base model the stereo is great, it has 9 Bose speakers and they have plenty of range for playing all types of music with too much distortion. The infotainment system is large and easy to use. Climate control is easy to use which are just normal knobs, I like this better than trying to navigate a touchscreen to change temperature setting because it keeps my eyes on the road. Climate control has 3 zones and keeps everyone comfortable on long trips.… - 5.0
Better than a Cadillac
By Shelly | on Friday, November 20, 2020
Love my yukon. A little rough driving over bumps. Overall better than a esclade any day..… - 2.0
whish it was a better truck
By PG | on Thursday, September 23, 2021
Many thinks stopped working. Love the looks but transmission, starter, tail lights, and AC quite working . Many other people I talked to said same issues.…
Based on 81 consumer ratings for 2015–2020 models. | Privacy
All prices shown exclude taxes, title, license and $367.70 IL doc fee. Dealer will not honor pricing errors displayed here. Pricing is subject to changes as a
result of expiration and market adjustments.
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