Key Takeaways
- ✓NHTSA tests vehicles in three categories: frontal crash, side crash, and rollover resistance, each scored 1 to 5 stars.
- ✓A 5-star overall rating means roughly 10% or less chance of serious injury in a crash. Each star below adds approximately 10% more risk.
- ✓NHTSA complaints are different from recalls. A vehicle can have zero recalls but hundreds of consumer complaints for known issues.
- ✓The average vehicle model has 47 NHTSA complaints. Models with 200+ complaints have significantly higher rates of defect-related incidents.
- ✓You can check any vehicle's safety rating and complaint history for free using OTDCheck's Safety Check tool.
Every year, NHTSA crash-tests hundreds of vehicles and rates them on a 1 to 5 star scale. But most buyers never check these ratings before purchasing, and the difference between a 3-star and 5-star vehicle is literally life and death.
How NHTSA Safety Ratings Work
NHTSA evaluates vehicles across three crash test categories:
- Frontal Crash (35 mph barrier test): Measures injury risk to driver and front passenger in a head-on collision
- Side Crash (moving barrier at 38.5 mph): Simulates being T-boned at an intersection
- Rollover Resistance (static stability factor): Measures the vehicle's likelihood of rolling over in a single-vehicle crash
Each category gets 1-5 stars, and NHTSA calculates an overall rating. The math is simple: each star represents roughly a 10% change in serious injury probability.
What Each Star Rating Actually Means
| Stars | Serious Injury Probability | What It Means |
|---|---|---|
| 5 Stars | 10% or less | Best available protection |
| 4 Stars | 11-20% | Above average protection |
| 3 Stars | 21-35% | Average protection (acceptable) |
| 2 Stars | 36-55% | Below average, consider alternatives |
| 1 Star | 56%+ | Significantly higher injury risk |
NHTSA Complaints vs Recalls: The Critical Difference
Most people only check for recalls. But NHTSA consumer complaints tell a much richer story:
- Recalls are official. The manufacturer must fix the defect for free.
- Complaints are consumer-reported problems that may never trigger a recall.
- A vehicle with 0 recalls but 300+ complaints has known issues that NHTSA has not acted on yet.
- Complaint patterns often predict future recalls by 6-18 months.
How to Check Any Vehicle's Safety Data
- Go to OTDCheck Safety Check
- Enter the 17-character VIN
- Instantly see: crash test stars, complaint count, top issues, crash/fire/injury incidents
This is completely free and uses the official NHTSA database, the same data used by insurance companies to set your premiums.
Combine Safety Data with Other OTDCheck Tools
Safety ratings are just one piece. For a complete picture before buying:
- Recall Check - Are there open recalls?
- Title Check - Is it salvage, flood, or lemon?
- Total Cost of Ownership - What will it really cost over 5 years?
- Deal Analyzer - Is the price fair?
Frequently Asked Questions
What do NHTSA star ratings mean?
NHTSA rates vehicles on a 1 to 5 star scale across frontal crash, side crash, and rollover resistance. Five stars means approximately 10% or less probability of serious injury in a crash of that type.
What is the difference between NHTSA complaints and recalls?
Recalls are official manufacturer actions to fix known safety defects. Complaints are reports filed by individual consumers about problems they experienced. A vehicle can have many complaints but no recall if NHTSA has not determined a pattern warrants official action.
How do I check a car's safety rating?
Use OTDCheck's free Safety Check tool at otdcheck.com/tools/safety-check. Enter any VIN and instantly see the NHTSA crash test ratings, consumer complaint count, and top reported issues.
Are older cars less safe than newer cars?
Generally yes. Safety standards improve every year. A 5-star 2015 vehicle may perform worse than a 4-star 2024 vehicle because testing standards have become stricter. Within the same model year, star ratings are directly comparable.
Does NHTSA test every car model?
No. NHTSA tests a selection of new vehicles each year, prioritizing popular models and new designs. Some low-volume or niche models may not have NHTSA ratings.
What should I do if my car has many NHTSA complaints?
Research the specific complaints. Common complaints about minor issues are different from complaints involving crashes or fires. Check if any Technical Service Bulletins have been issued. File your own complaint at nhtsa.gov if you experience the issue.