How serious did it get for owners?

Among the 1,459 owner complaints naming this part, being towed is the outcome owners report most often.

Outcomes owners reported in complaints about this part

What it shows: Towed is the largest at 88, followed by Fire reported at 30; the smallest shown is Crash reported at 6.

Source: NHTSA owner complaint files · file downloaded 2026-10-05

Data and chart by CalcScrape: Catalytic Converter Replacement Cost Calculator