Solo operators as a share of all auto repair businesses
Complaints against what the makes sold would predict (1.0× = expected)
left map: lower to higherright map: green fewer complaints than expected, red morefurthest from the pattern: AR, CO, IA, KS, MD, MI, NJ, UT, WI, WVfewer than 10 complaints
This describes states, not any one car, and it does not show that the left measure produces the right one.
Every state with 10 or more complaints, most over-reported first: state, solo operators as a share of all auto repair businesses, complaints against expected, complaints filed.
What it shows: States with more solo operators as a share of all auto repair businesses tend to sit higher on the chart across 38 states: a pattern in the data, not proof of cause.
Source: Census Nonemployer Statistics 2021 and County Business Patterns 2023, NAICS 8111, joined to NHTSA owner complaints · downloaded 2026-10-12
Data and chart by CalcScrape: Fuel Injector Replacement