Cars Were 3.5 Years Old When Owners Complained. Now It's 6.4.

The complaint database is normally read one model at a time: how many, about what, how bad. Read it by the age of the car instead and something else appears.

In the late 1990s, the typical complaint concerned a car barely out of warranty. Today it concerns one that has been through at least one resale.

Three things moved at once

The first is that cars last longer. A twelve-year-old vehicle in 1997 was often finished; today it is ordinary, and the average age of the fleet on American roads has climbed past twelve years. More old cars on the road means more old cars experiencing faults.

The second is who is doing the complaining. A three-year-old car belongs to its first owner, who takes a fault to the dealer under warranty. A seven-year-old car belongs to somebody who bought it used, has no warranty to fall back on, and for whom the regulator's complaint form is one of the few available channels.

The third is that filing got easier. An online form reachable in two minutes produces a different population of complaints than a paper process did, and it particularly lowers the barrier for the low-grade long-running faults that owners of older cars deal with.

Why this changes how a model's record should be read

A raw complaint count treats every entry the same. The age distribution says they are not the same at all.

A complaint on a two-year-old car is close to a manufacturing defect report. Something was built wrong or designed wrong, and it failed while the car was still essentially new.

A complaint on a twelve-year-old car — and 16.6% of all complaints are filed ten or more years after the model year — is usually about something that wore out. Sometimes that is a genuine design flaw showing up late. Sometimes it is a component reaching the end of a reasonable life on a vehicle that has not been maintained.

Both are worth knowing and they answer different questions. Mixed into one number they answer neither.

The part used buyers actually need

Late complaints are the more useful half for anyone shopping second-hand, and they are the half that gets least attention.

Early-life complaints tell you what the factory got wrong, which matters most to the person buying new. Late-life complaints tell you what fails after a decade — corrosion, fuel system components, electrical faults, the things that decide whether a fifteen-year-old example is worth buying.

That information only exists because people keep filing about old cars, and the fact that they increasingly do is why the data is more useful to used buyers now than it was in 1997.

Reading a complaint list properly

Two questions to ask of any model's record before drawing a conclusion.

How old were the cars? A hundred complaints on two-year-old vehicles is a much stronger signal than a hundred spread across twenty years of production.

And what do the late ones describe? If a model's complaints cluster at ten-plus years and all concern the same component, that is a real pattern about how it ages — which is exactly what you want to know before buying one at that age.

Whether any of it has produced a recall on the specific vehicle in front of you is a separate question, and a free VIN check answers that one directly.