Service bulletins for the 2018 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.
48 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Software are shown. Show all
| A23-042 | 2023-06-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Service Bulletin - A combination of carbon deposits on the intake valves and the PGM-FI software settings may lead to reduced combustion stability under certain circumstances. This results in a misfire being detected and DTC stored. |
|---|---|
| A21-007 | 2022-07-07. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS. Service bulletin - The MIL comes on with DTC P0300 (random misfire detected) or P0301–P0304 (cylinder misfire detected). Carbon buildup on the intake valves may be affecting combustion. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.