Full Description: The 2020 Yukon is available in both standard and long-wheelbase variations. The long-wheelbase model known as the Yukon XL rides on a 14-inch longer wheelbase than the standard-length model. Overall length is up 20.5 inches. The stretch yields significantly more cargo space and third-row legroom. As an old-school SUV the Yukon gets old-school V-8 power. Most models come standard with a 5.3-liter V-8 that makes 355 horsepower and 383 pound-feet of torque but a 6.2-liter V-8 is also available. This engine puts out a full 420 hp and 460 lb-ft of torque.The smaller engine continues to use a 6-speed automatic but the 6.2-liter sends its power through a 10-speed automatic. Rear-wheel drive is standard across the range though four-wheel drive is available. Properly equipped this SUV can tow a full 8500 pounds.Expect 15 mpg city 22 mpg highway 18 mpg combined for a rear-drive Yukon with the 5.3-liter V-8. Four-wheel drive drops that to 15/21/17 mpg. The 6.2-liter engine improves highway gas mileage over the base powertrain almost certainly due to the more efficient 10-speed automatic and its higher final-drive ratios. This engine is good for 15/23/17 mpg in RWD spec and 14/22/17 in 4WD trim.Fuel economy for the longer Yukon XL models are nearly identical to the standard-length models.Cargo Net,1 in 3rd row and 1 in the cargo area.,1.1 Amp,110-volt,12-volt includes outlets in the instrument panel,150 amps,150 Watt,1st row passenger and 2nd row outboard seats,3.08 ratio,383 lb-ft of torque [518 N-m] @ 4100 rpm),4-wheel drive,4.2" diagonal multi-color,4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.),5 auxiliary,5.3L EcoTec3 V8 with Active Fuel Management,7-wire harness with independent fused trailering circuits mated to a 7-way sealed connector and 2" trailering receiver,7300 lbs. (3311 kg) (Standard on 4WD models.),acoustic laminated glass,active,Active aero shutters,Airbags,Alternator,aluminized stainless-steel muffler and tailpipe,and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver,Assist handles,Audio system feature,Automatic Emergency Braking,automatic high beam on/off,auxiliary external transmission oil cooler,back of the console,body-color with integrated turn signal indicators and ground illumination.,Bose premium 9-speaker system with subwoofer in center console,Brakes,cargo lights,CD player (Replaced by (U42) rear seat entertainment system when (U42) is ordered.),Climate control,color-keyed carpeting,Console,Cooling,Cup holders,Daytime running lamps,deep-tinted,Defogger,Differential,Direct Injection and Variable Valve Timing,does not include neutral. Cannot be dinghy towed. (Not available with 2WD models or (NHT) HD Trailering Package.),door handle or Remote Keyless Entry-activated illuminated entry and map lights in front and second seat positions,Driver Information Center,electronic Autotrac with rotary controls,Engine,Exhaust,external engine oil cooler,Floor covering,floor with storage area,Fog lamps with chrome surround,for child restraint seats lower anchors and top tethers located in all second-row seating positions,Forward Collision Alert,front,Front and Rear Park Assist,front and rear passenger footwells and door storage area,front coil-over-shock with stabilizer bar,front express up,Front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.),front rain-sensing,Frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Driver inboard seat-mounted side-impact airbag; Head-curtain airbags for all rows in outboard seating positions (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.),Glass,GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.),GVWR,halogen projector,hands free,HD Radio,Headlamps,heated,heated second row,heavy-duty air-to-oil,heavy-duty air-to-oil integral to driver side of radiator,heavy-duty includes trailering hitch platform,heavy-duty locking rear,Hill Start-Assist,includes aluminum block construction (355 hp [265 kW] @ 5600 rpm,inside rearview auto-dimming,IntelliBeam,interior includes courtesy lighting with theater dimming,interior with dome light driver- and passenger-side door switch with delayed entry feature,intermittent,Keyless start,Lane Change Alert with Side Blind Zone Alert,LATCH system (Lower Anchors and Tethers for CHildren),leather-wrapped,Liftgate,Lighting,lighting for front and rear door handles,lockable outside spare winch-type mounted under frame at rear,mechanical jack and wheel wrench stored in rear quarter trim,Mirror,Mirrors,outboard positions,outside heated power-adjustable,Power,power all express down,Power outlet,Power outlets,power tilt and telescopic,power-folding and driver-side auto-dimming,Powertrain grade braking,Premium Smooth Ride,programmable,push button start,rear,Rear axle,Rear Cross Traffic Alert,rear multi-link with coil springs,rear power programmable,Rear Vision Camera,rear-window electric,right-front passenger and rear passengers,Safety Alert Seat,SEATS,single-speed,solar-absorbing,Steering,Steering column,Steering wheel,Suspension,Suspension Package,Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob,Tire carrier,Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire),to help encourage safe driving behavior. It can limit certain available vehicle features,Tools,top tethers located in third row seating positions,Trailering equipment,Transfer case,tri-zone automatic,Universal Home Remote includes garage door opener,Windows,Windshield,Windshield style,Wiper,Wipers,with automatic exterior lamp control,with individual climate settings for driver