Honda Fit 2016–2020 — technical service bulletin

Bulletin A21-007 · NHTSA communication 10237806 · issued Jun 2, 2023

Technical service bulletin

communication type

Engine and Engine Cooling

component

2016–2020

model years

vehicle entries

Official summary

Service Bulletin - The MIL comes on with DTC P0300 (random misfire detected) or P0301â P0304 (cylinder misfire detected) due to carbon buildup on the intake valves may be affecting combustion.

Vehicles covered

2016 Honda Fit
2017 Honda Fit
2018 Honda Fit
2019 Honda Fit
2020 Honda Fit

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.