metadata
license: cc-by-4.0
language:
- en
pretty_name: Engine-Family Complaint Density (NHTSA, MY 2005-2025)
tags:
- automotive
- engines
- nhtsa
- vehicle-reliability
- engine-defects
- recalls
- open-data
- consumer-data
size_categories:
- n<1K
configs:
- config_name: default
data_files:
- split: train
path: engine-complaint-density.csv
Engine-Family Complaint Density
Curated problematic engine families (documented defect patterns — class actions, NHTSA investigations, or 100+ fleet complaints), with total NHTSA complaints, recalls, and complaints normalized per model-year entry. Density lets you compare families of different production volumes.
Columns
| column | meaning |
|---|---|
engine_family |
Engine family name |
manufacturer |
Manufacturer |
displacement |
Displacement |
configuration |
Engine configuration |
years |
Production years |
modelyear_entries |
Matching model-year entries in DB |
complaints |
Total NHTSA complaints across the family |
complaints_per_modelyear |
Complaints ÷ model-year entries |
recalls |
Total recalls across the family |
alleged_fires |
Complaints alleging fire (unverified) |
alleged_deaths |
Complaints alleging death (unverified) |
url |
Source page on ProblemsByVin |
Source & methodology
Families are the editorial set powering /engines/. For each family we sum complaints/recalls/harm flags across every matching (year, make, model) in the DB. "complaints_per_modelyear" = total complaints ÷ model-year entries present. Complaints are unverified consumer reports.
Canonical version, full methodology, and the other datasets: https://problemsbyvin.com/data/ .
License
CC BY 4.0 — free to use with attribution to ProblemsByVin (https://problemsbyvin.com).