1,811 complaints state that the owner bought the car new. 793 state that they bought it used. Both are small numbers against 1.1 million, and the ratio between them is the interesting part.
People who bought new are more than twice as likely to say so, and far more likely to file at all.
Why the first owner does the reporting
Three reasons compound.
A new car is under warranty, so the owner engages with the dealer, gets told the fault cannot be reproduced or is not covered, and escalates. That process generates the paperwork trail that ends in a complaint.
A new car also comes with an expectation. A fault at 8,000 miles violates something; the same fault at 90,000 miles reads as age, whether or not it is.
And the first owner has the manufacturer's attention. A second owner of a seven-year-old car has no relationship with anybody, and often concludes there is nobody to tell.
What that does to the record
It means the complaint database is weighted toward early-life faults, and systematically thin on what goes wrong at 100,000 miles and beyond.
That is exactly backwards from what a used buyer needs. Somebody looking at a ten-year-old car wants to know what fails in year eleven, and the record is densest on year two.
It also compounds a timing problem we have measured elsewhere: the average complaint arrives 229 days after the failure, so a recent model year is under-reported by definition.
How to read around the bias
Two adjustments make the data far more useful.
Read complaints for the oldest model year of the generation you are considering, not the year of the specific car. The design is usually shared across four to seven years, and the oldest year has the most mature complaint history.
And pay attention to the mileages people quote. 62,142 complaints state one, and a cluster around a specific figure is a design life limit that will arrive on your car regardless of who reported it.
And file one yourself
If you are the second owner and something fails, the report is worth filing precisely because your half of the ownership cycle is the under-documented one.
It costs ten minutes, it is free, and it goes into the same record the next buyer will read. The high-mileage failures are invisible mainly because the people experiencing them assume nobody is listening.
Frequently asked questions
Who files most vehicle complaints — first or second owners?
First owners, by a wide margin. Complaints stating the car was bought new outnumber those stating it was bought used more than two to one, because warranty disputes generate paperwork and new cars carry an expectation that a fault violates.
Does that make complaint data less useful for used buyers?
It skews it. The record is densest on early-life faults and thin on what fails past 100,000 miles, which is the opposite of what somebody buying a ten-year-old car needs to know.
How do you work around the bias?
Read complaints for the oldest model year of the generation rather than the specific year, since designs are shared across several years and the oldest has the most mature history. And watch the mileages owners quote — a cluster indicates a design life limit.
Denis Kataev is a serial solopreneur and the founder of ForCar. With 15+ years in software engineering and 10 years in SEO, he builds data-driven products end to end — backed by a sharp eye for design. At ForCar he mines proprietary vehicle datasets, turning raw numbers into buying advice you can actually trust.
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