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To help members understand the latest automotive technology so they can purchase vehicles that best suit their needs, the Automobile Club of Southern California's Automotive Research Center (ARC) began testing and reviewing vehicles over a decade ago

For the 2022 edition, we include testing and ranking cars and light trucks with the latest technology, including having at least one advanced driver-assistance system (ADAS) feature. In addition to vehicle evaluation, the guide covers a number of pertinent automotive topics in detail—for example, the latest advanced safety features, how to properly maintain your vehicle, and new vehicles coming to market in the next few years.

2021 Chevrolet Suburban 4WD High Country

Vehicle Type: SUV/Minivan Gasoline
 overall score
Category Ranking: 31

Vehicle Price

Base Price: $75,300
Price as Tested: $84,045

Fuel Information

Fuel Type: Premium
Fuel Capacity (gal): 28
EPA City mpg14
EPA Highway mpg19
EPA Combined mpg16

Advanced Safety Features

  • Adaptive Cruise Control [O]
  • Advanced Headlights [S]
  • Automatic Emergency Braking [S]
  • Blind-Spot Warning [O]
  • Forward-Collision Warning [S]
  • Lane-Departure Warning [O]
  • Lane-Keeping Assistance [O]
  • Rear Cross-Traffic Warning [O]
  • [S] Standard, [O] Optional
NHTSA Rating:

Overall Observations

The Chevrolet Suburban is a marque that’s been around seemingly forever. It debuted in 1935 and, more than 8 decades later, this full-size SUV remains an automotive classic. That said, by any measure it’s a bit of a dinosaur as well, with its gargantuan dimensions, pickup-truckbased construction, and thirsty powertrains. But the all-new 12th-generation, which debuted in 2021, has evolved, getting an independent rear suspension, which provides a more supple ride quality, plus added room for rear-seat passengers, especially those in the third row. Under the hood, our test truck was equipped with the available 6.2-liter gasoline-powered V8, which provides both a hefty 8,300-pound towing capacity and dismal fuel economy. Buyers looking to do a lot of driving or towing would do well to check out the new and notably more fuel-efficient 3.0-liter turbodiesel inline 6-cylinder option, which puts out 277 hp and gets 23 mpg in combined driving rear-wheel drive. Our top-of-the line tester came with a long list of high-tech features, including an optional rear-seat entertainment system with huge 12.6-inch dual screens and a 360-degree surround-view monitor—a welcome addition when trying to maneuver this beast in tight quarters. Unfortunately, most advanced safety features are optional.
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Strengths and Weaknesses

Strong Points

  • No shortage of power
  • Roomy, spacious interior
  • Handsome exterior styling

Weak Points

  • Poor fuel economyratings
  • Difficult to maneuver intight areas
  • Side-visibility blind spots

Vehicle Specifications

Model year tested: 2021
Number of passengers (F/R): 2/5
Curb weight (lbs): 6260.0
Exterior L / W / H (in): 225.7 / 81.1 / 75.7
Wheelbase (in): 134.1
Number of air bags: 9
Warranty (months/miles): 36/36,000
Tire manufacturer and model: Bridgestone Alenza
Front and rear tire size: 275/50 R22
Max towing capacity (lbs): 8300
Headlight type: LED
Transmission type: Auto 10-speed
Drivetrain type: Four wheel
Engine/motor: 6.2L V8 Ecotec3
Engine horsepower @ RPM: 420 @ 5600

Test Data

Test Vehicle Scores

Advanced Safety Features:


Fuel Efficiency:


EPA Emissions Score:








Ride Quality:


Interior Size:


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