PlainCars publishes a safety profile for every vehicle make, model, and model year that the National Highway Traffic Safety Administration tracks — built entirely from official NHTSA data. This page explains how those pages are produced, what standards they are held to, and how to report a number that looks wrong so we can fix it at the source.

How these pages are produced

Every complaint count, recall record, investigation, and crash-test rating on PlainCars originates in an official NHTSA dataset. We download the raw data files and pull the public APIs, load them through a documented, version-controlled data pipeline, and render them into make, model, model-year, and state pages using shared templates. No vehicle page is hand-written, and no complaint tally, recall count, or star rating is typed in by an editor. Each figure you see is read directly from the official NHTSA source record at build time.

Our editorial team is responsible for the parts a pipeline cannot decide on its own: which datasets to use, how each metric is defined and labeled, what the methodology says, how derived measures (such as a national crash-test average or a make-versus-fleet comparison) are computed, which guides and explainers we write, and what we will not publish. The pipeline then applies those decisions uniformly across every vehicle, so the rule that governs one page governs all of them.

Sourcing standards

We publish only data that comes from official government sources, and we name the source on every page. Our data is:

• NHTSA ODI Complaints Database: consumer-submitted vehicle safety complaints collected by NHTSA's Office of Defects Investigation — over two million records spanning decades, each with make, model, year, component category, narrative, and crash/fire/injury/fatality flags. It is the source for every complaint count and component breakdown on the site.
• NHTSA Recalls: the official recall campaigns published through NHTSA's Recalls API, including the campaign number, affected population, defect description, consequence, and remedy.
• NCAP Crash-Test Ratings: the New Car Assessment Program frontal, side, and rollover star ratings — the official government safety ratings for new vehicles sold in the U.S.
• NHTSA Defect Investigations: Preliminary Evaluations and Engineering Analyses opened when complaint patterns suggest a potential safety defect.

We do not scrape third-party review sites, we do not republish self-reported owner ratings as our own, and we do not assign our own reliability or safety scores. Where a figure is derived from the official data (for example, a national crash-test average or a complaints-per-model comparison), the page links to our methodology, which sets out exactly how it is calculated.

Accuracy and validation

Because the numbers are read straight from NHTSA files, the most common limitation is the underlying data itself rather than a transcription error. Complaints are self-reported and unverified; complaint volume is influenced by how many of a vehicle were sold; and NCAP only rates a subset of model years. Our pipeline applies systematic checks before a value is published: it counts only ratings the source actually assigned (never treating an unrated vehicle as a zero), shows a value as unavailable when the source omits it, and reconciles make, model, and model-year rollups so the same figure is consistent wherever it appears.

When we find that a displayed number is wrong, we fix the cause, not the symptom. We trace the value back to the data layer, correct the derivation or labeling rule there, and regenerate the affected pages, so the same class of error is resolved everywhere at once rather than patched on a single page.

Editorial independence

PlainCars does not accept payment, sponsorship, or promoted placement from any manufacturer, dealer, or organization in exchange for how a vehicle is presented. We do not assign our own ratings or endorsements. Our only revenue source is contextual display advertising served by Google AdSense. Advertisers have no influence over which vehicles we cover, how a complaint or recall is reported, or how any page ranks.

Update schedule

NHTSA publishes new complaints and recalls on a rolling basis and adds NCAP ratings as new model years are tested. We refresh our database periodically from the latest NHTSA exports and re-stamp the affected pages so the published date reflects when the data genuinely changed. Because complaint and recall records accumulate over a vehicle's life, the totals on a page reflect everything reported through our most recent data load.

Corrections process

If a figure looks wrong, please tell us. We treat data-error reports as a priority and follow the same process every time:

1. Report. Email hello@plaincars.com with the page URL and the figure you are questioning.
2. Verify. We check the value against the official NHTSA source record for that make, model, or model year.
3. Fix at the source. If the figure is wrong on our side, we correct the underlying data or derivation rule and regenerate every page it affects.
4. Note it. If the figure is correct but reflects a known limitation — a self-reported complaint, an untested model year, or a sales-volume effect — we explain the caveat rather than silently changing it.

Some apparent errors trace back to the NHTSA record itself. When that is the case, we will tell you so and, where possible, point you to the official NHTSA database so you can verify it directly.

Contact

Questions about our standards, methodology, or a specific figure are welcome at hello@plaincars.com. For more on what the data covers and how it is processed, see our About page and methodology. For how to use this information responsibly when buying or assessing a vehicle, see our disclaimer.