2021 GMC Yukon vs. 2020 Lexus GX460

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/10

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Yukon are reminded to check the back seat if they opened the rear door before starting out. The GX460 doesn’t offer a back seat reminder.

The Yukon has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The GX460 doesn’t offer front seat center airbags.

Both the Yukon and the GX460 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available all wheel drive, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

Warranty

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There are almost 7 times as many GMC dealers as there are Lexus dealers, which makes it much easier should you ever need service under the Yukon’s warranty.

Reliability

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A hardened steel chain, with no maintenance needs, drives the camshafts in the Yukon’s engine. A rubber cam drive belt that needs periodic replacement drives the GX460’s camshafts. If the GX460’s belt breaks, the engine could be severely damaged when the pistons hit the opened valves.

To reliably power the ignition and other systems and to recharge the battery, the Yukon has a standard 220-amp alternator (250-amp - Yukon Diesel). The GX460’s 130-amp alternator isn’t as powerful.

Engine

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The Yukon’s standard 5.3 V8 produces 54 more horsepower (355 vs. 301) and 54 lbs.-ft. more torque (383 vs. 329) than the GX460’s 4.6 DOHC V8. The Yukon Denali’s standard 6.2 V8 produces 119 more horsepower (420 vs. 301) and 131 lbs.-ft. more torque (460 vs. 329) than the GX460’s 4.6 DOHC V8.

The Yukon’s 3.0 turbo diesel produces 131 lbs.-ft. more torque (460 vs. 329) than the GX460’s 4.6 DOHC V8.

Fuel Economy and Range

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On the EPA test cycle the Yukon gets better fuel mileage than the GX460:

MPG

Yukon

RWD

5.3 OHV V8

16 city/20 hwy

6.2 OHV V8

15 city/20 hwy

AWD

5.3 OHV V8

16 city/20 hwy

GX460

AWD

4.6 DOHC V8

15 city/19 hwy

An engine control system that can shut down some of the engine’s cylinders helps improve the Yukon V8’s fuel efficiency. The GX460 doesn’t offer a system that can shut down part of the engine.

In heavy traffic or at stoplights the Yukon’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The GX460 doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the GMC Yukon uses regular unleaded gasoline (premium recommended on Yukon Denali for maximum performance). The GX460 requires premium, which can cost 20 to 55 cents more per gallon.

Transmission

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A 10-speed automatic is standard on the GMC Yukon, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the GX460.

Tires and Wheels

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For better traction, the Yukon’s optional tires are larger than the largest tires available on the GX460 (275/65R20 vs. 265/60R18).

The Yukon’s optional tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the GX460’s 60 series tires.

For better ride, handling and brake cooling the Yukon offers optional 22-inch wheels. The GX460’s largest wheels are only 18-inches.

The Yukon has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The GX460 doesn’t offer vehicle monitored tire inflation.

Suspension and Handling

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For superior ride and handling, the GMC Yukon has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The Lexus GX460 has a solid rear axle, with a non-independent rear suspension.

For a smoother ride and more stable handling, the Yukon’s wheelbase is 11.1 inches longer than on the GX460 (120.9 inches vs. 109.8 inches).

Chassis

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The front grille of the Yukon uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The GX460 doesn’t offer active grille shutters.

Passenger Space

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The Yukon offers optional seating for 9 passengers; the GX460 can only carry 7.

The Yukon has 38.6 cubic feet more passenger volume than the GX460 (168.3 vs. 129.7).

The Yukon has 4.3 inches more front headroom, 2.8 inches more front legroom, 7.9 inches more rear legroom, 3 inches more third row headroom and 5.6 inches more third row legroom than the GX460.

Cargo Capacity

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The Yukon’s cargo area provides more volume than the GX460.

Yukon

GX460

Behind Third Seat

25.5 cubic feet

11.6 cubic feet

Third Seat Folded

72.6 cubic feet

46.7 cubic feet

Second Seat Folded

122.9 cubic feet

64.7 cubic feet

Pressing a switch automatically lowers the Yukon’s (except SLE) optional second and third row seats, to make changing between passengers and cargo easier. The GX460 doesn’t offer automatic folding second row seats.

The Yukon’s liftgate lifts up in one piece, completely out of the way of loading and unloading, while sheltering the cargo loading area. The GX460’s swing out door blocks loading from the passenger’s side.

To make loading and unloading groceries and cargo easier when your hands are full, the Yukon SLT/AT4/Denali’s power cargo door can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The GX460 doesn’t offer a power or hands-free opening cargo door.

Ergonomics

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The Yukon’s instruments include an oil pressure gauge and a temperature gauge - which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The GX460 does not have an oil pressure gauge.

The Yukon (except SLE/SLT) offers an available heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The GX460 doesn’t offer a heads-up display.

The Yukon’s power parking brake sets with one touch and releases with one touch or automatically. The GX460’s parking brake has to released manually.

The Yukon’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The GX460’s standard manually variable intermittent wipers have to be constantly adjusted.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the GMC Yukon SLT/AT4/Denali has a standard wireless phone charging system (Qi) for the front seat. The GX460 doesn’t offer wireless personal charging.

Model Availability

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/10

The Yukon is available in both rear-wheel drive and four-wheel drive configurations. The GX460 doesn’t offer a two-wheel drive configuration.

Recommendations

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/10

The GMC Yukon/Yukon XL outsold the Lexus GX460 by almost three to one during 2019.

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