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Worst Transmissions 2005–2025
Curated problematic transmission families (DCT, CVT, and conventional automatics with documented defect patterns), ranked by total NHTSA owner complaints across every vehicle that used the unit.
Columns
| column | meaning |
|---|---|
transmission_family |
Transmission family name |
manufacturer |
Manufacturer |
type |
Transmission type |
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_crashes |
Complaints alleging crash (unverified) |
url |
Source page on ProblemsByVin |
Source & methodology
Families are the editorial set powering /transmissions/. NHTSA does not expose a standalone "transmission" complaint category — transmission complaints bucket under "powertrain" — so this dataset aggregates by curated family (matching year/make/model lists), not a category filter. 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).
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