City mpg:
Highway mpg:

Actual rating will vary with options, driving conditions, habits and vehicle condition.

2018 GMC Yukon SUV Overview

The standard features of the GMC Yukon SLE include EcoTec3 5.3L V-8 355hp engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st, 2nd and 3rd row overhead airbag, airbag occupancy sensor, automatic air conditioning, 18" aluminum wheels, cruise control, ABS and driveline traction control, StabiliTrak w/Proactive Roll Avoidance electronic stability.

2018 GMC
Yukon SUV

Starting at: $49,100

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  • Air conditioning
  • Automatic temperature control
  • Front dual zone A/C
  • Rear air conditioning
  • Speed control
  • Power windows
  • 1-touch down
  • 1-touch up
  • Remote keyless entry
  • Illuminated entry
  • Tilt steering wheel
  • Driver vanity mirror
  • Passenger vanity mirror
  • Emergency communication system
  • Front beverage holders
  • Rear beverage holders
  • Overhead console
  • Driver door bin
  • Passenger door bin
  • Ground clearance (min) - 203mm (8.0")
  • AM/FM radio - SiriusXM
  • CD player
  • CD-MP3 decoder
  • Premium audio system - IntelliLink
  • Steering wheel mounted audio controls
  • Speakers - 9
  • Speaker type - Bose
  • Turn-by-turn navigation directions - OnStar Turn-by-Turn Navigation
  • Wireless phone connectivity - Bluetooth
  • 1st row LCD monitors - 2
  • Primary LCD size - 8.0"
  • Smart device integration - Apple CarPlay/Android Auto
  • Basic warranty - 36 months/36,000miles
  • Powertrain warranty - 60 months/60,000miles
  • Corrosion perforation warranty - 72 months/100,000miles
  • Roadside assistance coverage - 60 months/60,000miles
  • Maintenance warranty - 12 months/12,000miles
  • Max seating capacity - 8
  • Front seats - bucket
  • Power driver seat
  • Power 2-way driver lumbar support
  • Power passenger seat
  • Front center armrest
  • Power 2-way passenger lumbar support
  • Rear seats - split-bench
  • Split folding rear seat
  • Rear seat center armrest
  • 3rd row seats - split-bench
  • Engine displacement - 5.3 L
  • Engine horsepower - 355hp @ 5,600RPM
  • Engine torque - 383 lb.-ft. @ 4,100RPM
  • Engine bore x stroke - 96.0mm x 92.0mm (3.78" x 3.62")
  • Compression ratio - 11.00 to 1
  • Payload - 767kg (1,690lbs)
  • Curb weight - 2,440kg (5,379lbs)
  • GVWR - 3,221kg (7,100lbs)
  • Towing capacity - 2,948kg (6,500lbs)
  • Exterior length - 5,179mm (203.9")
  • Exterior body width - 2,045mm (80.5")
  • Exterior height - 1,890mm (74.4")
  • Wheelbase - 2,946mm (116.0")
  • Turning radius - 5.9m (19.5')
  • Front legroom - 1,151mm (45.3")
  • Rear legroom - 991mm (39.0")
  • 3rd row legroom - 630mm (24.8")
  • Front headroom - 1,087mm (42.8")
  • Rear headroom - 983mm (38.7")
  • 3rd row headroom - 968mm (38.1")
  • Front hiproom - 1,544mm (60.8")
  • Rear hiproom - 1,532mm (60.3")
  • 3rd row hiproom - 1,252mm (49.3")
  • Front shoulder room - 1,646mm (64.8")
  • Rear shoulder room - 1,654mm (65.1")
  • 3rd row shoulder room - 1,590mm (62.6")
  • Interior cargo volume - 433 L (15 cu.ft.)
  • Interior maximum cargo volume - 2,682 L (95 cu.ft.)
  • Rear cargo - liftgate
  • Power door mirrors
  • Heated door mirrors
  • Spoiler
  • Door mirrors - body-color
  • Bumpers - body-color
  • Roof rack - rails only
  • Trailer hitch receiver
  • Trailer sway control
  • Engine liters - 5.3
  • Cylinder configuration - V-8
  • Horsepower - 355hp @ 5,600RPM
  • Torque - 383 lb.-ft. @ 4,100RPM
  • Number of valves - 16
  • Variable valve control
  • Cylinder deactivation
  • Engine location - front
  • Recommended fuel - Regular Unleaded
  • Transmission - 6 speed automatic
  • Mode select transmission
  • Manual-shift auto - TAPshift
  • Drive type - rear-wheel
  • Limited slip differential
  • Fuel economy combined - 19mpg
  • Fuel tank capacity - 26.0gal.
  • Rear locking differential
  • Fuel economy city - 16mpg
  • Fuel economy highway - 23mpg
  • 4 wheel disc brakes
  • ABS brakes
  • Brake assist
  • Dual front impact airbags
  • Dual front side impact airbags
  • Overhead airbag
  • Occupant sensing airbag
  • Panic alarm
  • Perimeter/approach lights
  • Tracker system - OnStar Guidance
  • Ignition disable
  • Security system
  • Electronic stability
  • Traction control
  • Front wheel independent suspension
  • Front anti-roll bar
  • Rear anti-roll bar
  • Power steering
  • Speed-sensing steering
  • Alloy wheels
  • Front tires - 265/65SR18.0
  • Rear tires - 265/65SR18.0
  • Wheel size - 18"
  • Fully automatic headlights
  • Delay-off headlights
  • Front fog lights
  • Variably intermittent wipers
  • Rain sensing wipers
  • Rear window wiper
  • Rear window defroster
  • Front reading lights
  • Rear reading lights
  • Display - analog
  • Tachometer
  • Voltmeter
  • Compass
  • Outside temperature display
  • Low tire pressure warning
  • Trip computer
  • Parking sensors - front and rear
  • Exterior parking camera rear


  MSRP Engine Transmission City/Hwy mpg
SLE 2018 GMC Yukon SUV SLE Search New $49,100   355-hp 5.3L 8-cyl  6-spd auto  16 / 23  
SLE 2018 GMC Yukon SUV SLE Search New $52,100   355-hp 5.3L 8-cyl  6-spd auto  16 / 22  
SLT 2018 GMC Yukon SUV SLT Search New $57,200   355-hp 5.3L 8-cyl  6-spd auto  16 / 23  
SLT 2018 GMC Yukon SUV SLT Search New $60,200   355-hp 5.3L 8-cyl  6-spd auto  16 / 22  
Denali 2018 GMC Yukon SUV Denali Search New $66,200   420-hp 6.2L 8-cyl  10-spd auto  14 / 23  
Denali 2018 GMC Yukon SUV Denali Search New $69,200   420-hp 6.2L 8-cyl  10-spd auto  14 / 22  


Driving Impression

New Car Test Drive

Both engines promise strong performance, even when towing. Acceleration is well beyond adequate with the standard 5.3-liter V8, while the Denali’s 6.2-liter V8 delivers remarkably eye-opening response to the gas pedal. Considering that a Denali weighs about 5,500 pounds, that’s quite an achievement.

SLE and SLT versions provide the most comfortable ride, due in part to their high-sidewall tires. Even with its bigger wheels, the Denali also satisfies in ride comfort.

The Yukon’s weight is most noticeable on curvy roads, especially in Denali trim. Fortunately, steering is direct and accurate, and the body doesn’t lean too much when cornering. Magnetically-controlled shock absorbers in the Denali help counteract the effect of its bigger wheels. Smaller bumps are absorbed effectively, for a luxurious feel, but the suspension firms up when needed.

Sound emanating from the standard V8 is muted and refined. Both engines can run on half their cylinders in light-load usage, to help reduce fuel consumption.

No Yukon functions as a serious off-road vehicle, but optional four-wheel drive includes a low range that helps maintain traction on unpaved roads and trails.

For such sizable SUVs, fuel economy is reasonably good with the 5.3-liter engine, if more troubling with the Denali. Rear-wheel-drive regular Yukons are EPA-rated at 16/23 mpg City/Highway, or 19 mpg Combined. Four-wheel drive lowers those figures to 16/22/18 mpg.

With rear-drive, the Yukon Denali’s 6.2-liter V8 is EPA-rated at 14/23 mpg City/Highway, or 17 mpg Combined. Four-wheel-drive, short-wheelbase Denalis are EPA-rated 14/22 mpg City/Highway, or 17 mpg Combined; but 14/21/16 mpg for the Yukon XL Denali.

Walk Around

New Car Test Drive

Still unabashedly boxy-shaped like its predecessors, the Yukon boasts chiseled styling, highlighted by cleanly conservative body lines. Cutting down on curves, GMC manages to give the Yukon a sense of flair, without making it seem trucklike.

SLE and SLT trim levels differ little visually. Swept-back headlights complement the boxy grille. Large LED taillights dominate the simple, squared-off rear end.

Every Yukon conveys a look that suggests a comparatively high-end vehicle. For better or worse, the GMC Denali is ladled with an abundance of chrome.

Interior Overview

New Car Test Drive

Yukon cabins are handsome and luxurious. Regular-length Yukons aren’t as spacious as might be expected.

Deliciously curvaceous and carlike, the symmetrical dashboard looks like it might belong inside a luxury-level sedan. An 8.0-inch touchscreen sits high, above logically laid-out controls that convey a hint of truckiness. Easy and quick to use, the infotainment system includes Apple CarPlay and Android Auto connectivity.

SLT and Denali editions feature impressively-grained leather upholstery. Soft-touch materials abound, even in SLE trim.

All seats are comfortable. While the second row gives two passengers some elbow room, it’s wide enough to accept a third rider, at least for shorter trips. In standard-wheelbase Yukons, the third row is best for youngsters. In contrast, the XL provides ample stretch-out space as well as 39.3 cubic feet of cargo room. With its third row upright, cargo volume is only 15.3 cubic feet in the regular-size Yukon.

Relatively high liftover can make cargo-loading a bit of a chore. Folding second- and third- row seatbacks expand cargo space to almost 95 cubic feet in the standard Yukon, versus 121 cubic feet in XL models.


New Car Test Drive

Denalis are the top sellers, despite their startling prices. Every Yukon is well-equipped, while the Denali approaches luxury grade. For most families, a crossover might make more sense; but many drivers still favor the feel of a big, rear-drive, traditional SUV.

Driving impressions by Andrew Ganz, The Car Connection. James M. Flammang contributed to this report.

Model Lineup

New Car Test Drive

Yukon XL adds $3,000 to price of any Yukon model.

Yukon SLE ($49,080) comes with the 5.3-liter V8, rear-wheel drive, cloth upholstery, front bucket or bench seats, three-row seating, automatic three-zone climate control, 18-inch wheels. Four-wheel drive is available ($52,080). Yukon XL costs $3,000 more. (Prices are MSRP and do not include $1,295 destination charge.) An Enhanced Driver Alert package adds automatic emergency braking, forward collision warning, and active lane control.

Yukon SLT ($57,130), available with four-wheel drive ($60,130), adds perforated leather upholstery, heated front and second-row seats, ventilated front seats, a heated steering wheel, pushbutton start, and power-folding seats.

Yukon Denali ($66,165), available with four-wheel drive ($69,165) includes the 6.2-liter V8 and 10-speed automatic, along with 20-inch alloy wheels and a magnetically controlled suspension. A new Ultimate Package adds power-retractable side steps, 22-inch wheels, and adaptive cruise control.

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