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2018 GMC Yukon

US · SUV · Standard Sport Utility Vehicle 2WD

The 2018 GMC Yukon is listed in the US market as a suv. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.

Engine
Varies by configuration: 5.3L 8-cylinder (SIDI), 5.3L 8-cylinder (SIDI; FFV), 6.2L 8-cylinder (SIDI)
Transmission
Automatic
Drivetrain
Varies by configuration: RWD, 4WD
Fuel
Varies by configuration: Gasoline, Flex fuel
Economy
16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km) combined
Generic outline for this body type. An illustration, not a photograph.
Specifications at a Glance

Key Figures

Units:
Engine / Powertrain
5.3L 8-cylinder (SIDI), 5.3L 8-cylinder (SIDI; FFV), 6.2L 8-cylinder (SIDI)
Combined Economy
16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km) combined
Drivetrain
RWD, 4WD
Transmission
Automatic
Market: US·Switch units to convert the figures shown.
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Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 5.3L 8-cylinder (SIDI), 5.3L 8-cylinder (SIDI; FFV), 6.2L 8-cylinder (SIDI)
Displacement5.3 L to 6.2 L
Cylinders8
Fuel typeVaries by configuration: Gasoline, Flex fuel

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionAutomatic
Gears6 to 10
DrivetrainVaries by configuration: RWD, 4WD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km)
City14 mpg (16.8 L/100 km) to 16 mpg (14.7 L/100 km)
Highway21 mpg (11.2 L/100 km) to 23 mpg (10.2 L/100 km)

Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.

Trims and configurations

12 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 3 recall campaigns for this model year. Last checked November 10, 2026.

  • 20V603000: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

    General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.

    Remedy: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began November 11, 2020. Owners may contact GM customer service at 1-866-522-9559, Cadillac customer service at…

    Reported October 1, 2020. View on NHTSA

  • 19V761000: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING

    General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module…

    Remedy: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for…

    Reported October 24, 2019. View on NHTSA

  • 19V645000: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

    General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.

    Remedy: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at…

    Reported September 6, 2019. View on NHTSA

Data sources

  • EPA fueleconomy.gov · retrieved November 5, 2026 · US Government public data
  • NHTSA vPIC · retrieved October 12, 2026 · US Government public data

Source checked: November 5, 2026

Data verified: November 5, 2026

Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.

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Frequently asked questions

What engine does the 2018 GMC Yukon have?

Varies by configuration: 5.3L 8-cylinder (SIDI), 5.3L 8-cylinder (SIDI; FFV), 6.2L 8-cylinder (SIDI). Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 2018 GMC Yukon?

Combined fuel economy is 16 mpg (14.7 L/100 km) to 19 mpg (12.4 L/100 km), as published by the source shown in the specification table.

Is the 2018 GMC Yukon front-wheel, rear-wheel or all-wheel drive?

Drivetrain: Varies by configuration: RWD, 4WD.

Are there recalls for the 2018 GMC Yukon?

NHTSA lists 3 recall campaigns for this model year (last checked November 10, 2026). Details are in the Recalls section.