Explanation of 1990–2010 compared to 2011–Newer
Starting with 2011 models, NHTSA has introduced tougher tests and rigorous new 5-Star Safety Ratings that provide more information about safety feature performance and crash avoidance technologies. Because of the more stringent tests, 2011-newer model ratings are not comparable to 1990–2010 vehicles.
Note: Electronic Stability Control (ESC) is now a required safety feature on vehicles with a gross vehicle weight rating of 10,000 pounds or less. Thus, beginning in Model Year 2014, ESC has been removed from the list of 'Recommended Technologies' and 'Rearview Video Systems' has been added.