Service bulletins for the 2016 Honda Fit
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
94 on file from NHTSA, as of 2026-10-19.
About P0420 on the 2016 Honda Fit: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0420 are shown. Show all
| A18-027 | 2022-02-22. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service Bulletin - 2015-16 Fit: MIL Is On with DTC P0420 |
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| A18-027 | 2018-04-16. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. Service bulletin - The MIL is on and DTC P0420 (catalyst system efficiency below threshold) is set. Faulty fuel injectors in one or more cylinders may be affecting combustion and causing a false DTC P0420. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.