Diagsheet

What's known about your car, at your mileage

348,387 NHTSA owner complaints on 1034 vehicles, sorted by the mileage they happen at.

Newest report Sep 21, 2026 · checked Sep 23, 2026

Most reported this month

First-year watch

New models, logged month by month from their first complaint.

Questions the file can answer

Which model years to avoidComplaints filed per model year. Older years have had longer to collect them.

What breaks, and at what mileageThe model's biggest problem groups, placed at the median odometer reading owners reported.
050k100k150k
    Which one has the fewest problemsEvery vehicle of that type and year on this site, fewest first. A best-seller files more complaints than a rare model, so read the outliers, not the decimals.

      Makes

      Where the numbers come from

      Every count on this site is an owner complaint filed with NHTSA, a recall a manufacturer filed, or an investigation NHTSA opened. How the numbers are made.