Understanding NHTSA 5-Star Safety Ratings

NHTSA safety ratings are one of the most important factors when choosing a vehicle. But what do the stars actually mean, and how should you interpret them?

How Ratings Work

NHTSA’s New Car Assessment Program runs a frontal barrier crash (rated separately for driver and front passenger), two side impacts (a moving barrier and a rigid pole), and a rollover resistance assessment. Each produces a 1-to-5 star result, and the overall vehicle score combines them.

The rollover figure is the one most often misread. It is not a crash protection score — it estimates how likely the vehicle is to roll over in a single-vehicle crash, based on its static stability factor and a dynamic maneuver test. A vehicle can protect its occupants extremely well and still be relatively easy to tip.

What the Stars Mean

The stars are relative. They compare a vehicle’s measured risk of injury against the average across tested vehicles — they are not a grade against a legal minimum. Every new vehicle sold in the US must already meet the Federal Motor Vehicle Safety Standards regardless of how many stars it earns, so a low star count does not mean a vehicle is illegal, and a high one does not mean it exceeds a rule.

Limitations

Four caveats matter more than the star count itself:

• Frontal ratings only compare like with like.The frontal test drives the vehicle into a fixed barrier, so the forces involved depend on the vehicle’s own mass. NHTSA therefore only supports comparing frontal star ratings between vehicles of similar weight and the same class. A 5-star subcompact and a 5-star full-size SUV did not survive the same crash.
• Old ratings are not comparable to new ones. NHTSA substantially revised the program for the 2011 model year, adding the side pole test and tougher criteria. Star ratings from 2010 and earlier were awarded under the older program and cannot be read against post-2011 ratings.
• Not being tested is not a score.NHTSA tests only a portion of new vehicles each year. Where our pages show no rating, it means the vehicle was not tested — we leave it blank rather than inferring one.
• A crash test says nothing about defects. A 5-star vehicle can still be the subject of open recalls, owner complaints and defect investigations, all of which are separate records.

NHTSA publishes the ratings themselves at nhtsa.gov/ratings. Our safety-rating pages reproduce that data as a dated snapshot rather than a live feed, so for a brand-new model check the source directly.