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Behind the rollover ratings
NHTSA's SUV rating system doesn't say much. We dug deeper to help you find where they really rank.

Rollover crashes are a particularly deadly type of accident. But it can be hard to tell, based solely on National Highway Traffic Safety Administration's star ratings for rollover resistance, which SUVs are least likely to roll over in a crash.

NHTSA bases its ratings primarily on something called the Static Stability Factor. This is calculated by comparing a vehicle's width to its center of gravity. Whether a vehicle tips up on two wheels in a driving test also plays a small role in the rating. For our more on how the ratings work, see our story.

Below is a table of NHTSA test results for all 2004 model year SUVs that have been assigned a rollover resistance rating so far. For more details, see the notes below the table.

SUV Stars Static Stability Driving test
Buick Rainier 4-DR.4x4 4 1.19 Pass
Chevrolet Trailblazer 4-DR. 4x4 4 1.19 Pass
Dodge Durango 4-DR. 4X4 4 1.19 Pass
GMC Envoy 4-DR.4x4 4 1.19 Pass
Honda Pilot 4-DR. 4x4 4 1.25 Pass
Isuzu Ascender 4-DR. 4x4 4 1.19 Pass
Oldsmobile Bravada 4-DR. 4x4 4 1.19 Pass
Volvo XC90 4-DR. 4x4 4 1.21 Pass
Buick Rainier 4-DR.4x2 3 1.17 Pass
Chevrolet Tahoe 4-DR. 4x2 3 1.12 Fail
Chevrolet Tahoe 4-DR. 4x4 3 1.14 Fail
Chevrolet Trailblazer 4-DR. 4x2 3 1.17 Pass
Dodge Durango 4-DR 4x2 3 1.16 Pass
Ford Explorer 4-DR. 4x2 3 1.12 Fail
Ford Explorer 4-DR. 4x4 3 1.14 Pass
Ford Explorer Sport Trac 4x4 3 1.09 Pass
GMC Envoy 4-DR.4x2 3 1.17 Pass
GMC Yukon 4-DR. 4x2 3 1.12 Fail
GMC Yukon 4-DR. 4x4 3 1.14 Fail
Isuzu Ascender 4-DR. 4x2 3 1.17 Pass
Jeep Liberty 4-DR. 4x2 3 1.12 Pass
Jeep Liberty 4-DR. 4x4 3 1.15 Pass
Mercury Mountaineer 4-DR. 4x2 3 1.12 Fail
Mercury Mountaineer 4-DR. 4x4 3 1.14 Pass
Oldsmobile Bravada 4-DR. 4x2 3 1.17 Pass
Toyota 4Runner 4-DR. 4x2 3 1.15 Pass
Toyota 4Runner 4-DR. 4x4 3 1.17 Pass
Ford Explorer Sport Trac 4x2 2 1.07 Fail

Notes: Chances of rolling over in a single-vehicle crash.
4 stars: 10 to 20 percent
3 stars: 20 to 30 percent
2 stars: 30 to 40 percent
No SUVs have 1 star of 5 stars

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.