Carlexica Research
The worst model years in America: cars to avoid, ranked by 1.51 million owner complaints
Every complaint a US car owner files with the federal government becomes a public record. We loaded all of them - 1,507,156 complaints spanning four decades of US-market vehicles - and ranked the cars four ways: the model years to avoid relative to their own model, the most complained-about cars outright, the vehicles owners most often report catching fire, and the parts that actually break. If you are buying used, this is the unreliability record the seller will not mention. Not opinions - arithmetic.
Published September 1, 2026 · data refreshes weekly from NHTSA, last update 2026-08-31 · methodology
The 20 biggest lemons: model years to avoid
Comparing raw complaint counts across models is a popularity contest - a best-seller always looks worse than a rare car. So this ranking asks a fairer question: how much worse is this year than a typical year of the same model? A 10x here means owners of this one year filed complaints ten times faster than owners of the model's median year, adjusted for time on the road.
Minimum 500 complaints to qualify - freak years of small models do not sneak in on noise.
- 12002 Toyota Sequoia22.5x its typical year666 complaints · 8 recalls · top problem: electronic stability control (esc)
- 2
- 32003 Toyota Sequoia19x its typical year564 complaints · 7 recalls · top problem: electronic stability control (esc)
- 4
- 52004 Nissan Titan17.9x its typical year1,046 complaints · 7 recalls · top problem: transmission, axles, driveline
- 62001 Toyota Sequoia17.9x its typical year531 complaints · 3 recalls · top problem: body, frame, doors, rust
- 72007 Toyota FJ Cruiser16.9x its typical year593 complaints · 9 recalls · top problem: body, frame, doors, rust
- 82006 BMW 325I16.6x its typical year515 complaints · 7 recalls · top problem: airbags and crash sensors
- 92005 Nissan Titan15.3x its typical year891 complaints · 6 recalls · top problem: transmission, axles, driveline
- 10
- 112004 Nissan Maxima12.8x its typical year1,425 complaints · 2 recalls · top problem: transmission, axles, driveline
- 12
- 13
- 142011 Hyundai Sonata10.9x its typical year3,469 complaints · 17 recalls · top problem: steering wheel, rack, power assist
- 15
- 162023 Honda HR-V10.6x its typical year685 complaints · 3 recalls · top problem: windshield, wipers, defroster, mirrors
- 172004 Toyota Sienna10.3x its typical year2,062 complaints · 10 recalls · top problem: body, frame, doors, rust
- 182007 Toyota Prius9.2x its typical year2,003 complaints · 4 recalls · top problem: headlights, taillights
- 19
- 20
The most complained-about cars of all time
The raw leaderboard: total complaints ever filed, no adjustments. Read it for what it is - a list dominated by cars that sold in the millions and went wrong at scale.
| # | Vehicle | Complaints |
|---|---|---|
| 1 | 2010 Ford Fusion | 5,633 |
| 2 | 2012 Ford Focus | 3,765 |
| 3 | 2000 Ford Focus | 3,686 |
| 4 | 2007 Toyota Camry | 3,488 |
| 5 | 2011 Hyundai Sonata | 3,469 |
| 6 | 1995 Ford Windstar | 3,326 |
| 7 | 2002 Ford Explorer | 3,294 |
| 8 | 2013 Ford F-150 | 2,977 |
| 9 | 2011 Ford Fusion | 2,915 |
| 10 | 2010 Toyota Prius | 2,827 |
| 11 | 1997 Ford F-150 | 2,758 |
| 12 | 2013 Ford Escape | 2,749 |
| 13 | 2017 Ford Escape | 2,665 |
| 14 | 2014 Jeep Cherokee | 2,641 |
| 15 | 2012 Ford Fusion | 2,608 |
Where owners report fires most often
Every NHTSA complaint carries a checkbox: did the vehicle catch fire? These are the vehicles where owners ticked it most often, as a share of that vehicle's own complaints - so big sellers get no head start. Minimum 300 complaints to qualify.
- 35.1%
- 34.4%
- 31.9%
- 30.3%
- 29.1%
- 23.1%
- 22.4%
- 20.3%
- 20.1%
- 18.7%
The fire flag is set by the person filing the complaint and is not independently verified by NHTSA.
What actually breaks
Every complaint names the vehicle system involved. Across the whole database, these ten account for the bulk of everything owners report - shares are of all complaints with a named system.
Worst years by model
A national list can only show the extremes. For the car you are actually shopping for, the model page ranks every single year - these are the models from the tables above:
Frequently asked questions
What used car model years should you avoid?
The years that fare worst against their own model's record: 2002 Toyota Sequoia, 2006 Chrysler 300C, 2003 Toyota Sequoia, 2007 Toyota Camry Hybrid, 2004 Nissan Titan. Each fails its siblings by 17.9x or more in complaints per year on the road. For any specific model, its Carlexica page ranks every year from best to worst.
What is the worst model year of any car, relative to its own model?
By complaints per year on the road versus the model's own typical year, the 2002 Toyota Sequoia - its complaint rate is 22.5x the median year of the same model (666 complaints filed with NHTSA).
Which car has the most NHTSA complaints ever filed?
The 2010 Ford Fusion, with 5,633 owner complaints - though raw counts favor high-volume sellers, which is why our headline ranking is normalized to each model's own baseline.
Does a high complaint count prove a car is unreliable?
Not on its own. Complaints are owner self-reports: volume rises with sales, media attention and recall publicity. That is why this page never compares two models by raw counts - a year only counts as one to avoid when it fails against other years of the same car.
Methodology
Source. NHTSA's Office of Defects Investigation complaint and recall databases (public domain), loaded in full and refreshed weekly. Every number on this page is recomputed from the raw records - snapshot of 2026-08-31.
The lemon ranking. For each model year we compute complaints per year on the road, capping age at 12 years (complaints stop arriving for very old cars, and without the cap they would look better than they were). Years less than 3 years old are not judged - they have not had time to show their problems. Each year is then compared to the median rate of its own model, which removes the sales-volume problem: a model is only measured against itself. National list requires at least 500 complaints.
Raw counts. The most-complained-about table is deliberately unadjusted - NHTSA publishes no sales figures, so complaint totals cannot be converted into failure rates across different models. That is exactly why it is presented separately from the lemon ranking.
Merged categories. NHTSA changed its component taxonomy over the decades; we merge obvious synonyms (“Engine and engine cooling” into “Engine”, hydraulic and air brakes into “Service brakes”, gasoline and diesel fuel systems into “Fuel system”).
Caveats. Complaints are owner self-reports, not verified defect findings; fire and crash flags are ticked by the complainant. Complaint volume also responds to media attention and recall publicity. Treat every list here as “what owners reported”, not a laboratory failure rate.
Use this data
Writing about car reliability? Cite any number or ranking on this page freely with a link to it as the source. The underlying NHTSA records are public domain; the rankings and calculations are ours, and the page updates weekly - your link stays current. Need a custom cut (one brand, one state of the data, one problem area)? Ask us - we answer.
Looking for the other end of the spectrum? See the most reliable used cars - the companion study. And every vehicle linked above has its own page with complaints, recalls, typical trouble codes and crash-test ratings; start from the full catalog.