Vehicle safety research
12 studies built entirely from official NHTSA and EPA records — 2,670 recall campaigns across 2,548vehicles. Every figure is a raw, reproducible count with published methodology. No opinions, no rankings of “best” or “worst.”
Data synchronized Aug 31, 2026.
Manufacturers with the most recall campaigns
Which manufacturers have the most distinct NHTSA recall campaigns in the index?
View studyModels with the most recall campaigns
Which models carry the most recall campaigns across their model years?
View studyVehicles with the most recall campaigns
Which individual model-year vehicles have the most recall campaigns?
View studyManufacturers with the most NHTSA investigations
Which manufacturers have the most ODI defect investigations?
View studyModels with recurring NHTSA investigations
Which models have been the subject of the most defect investigations?
View studyManufacturers with the most owner complaints
Which manufacturers have the most owner complaints filed with NHTSA?
View studyVehicle systems with the most recall campaigns
Which vehicle systems attract the most recall activity?
View studyVehicle systems with the most owner complaints
Which vehicle systems do owners complain about most?
View studyRecall activity by model year
How does recall activity vary across model years in the index?
View studyRecall campaigns issued by year
How many recall campaigns were issued in each calendar year?
View studyNHTSA investigations opened by year
How many defect investigations did NHTSA open each year?
View studyRecall activity by vehicle segment
Which vehicle segments carry the most recall activity?
View study