Honda Fit 2015–2016 — technical service bulletin
Bulletin A18-027 · NHTSA communication 10208156 · issued Feb 18, 2022
Technical service bulletin
communication type
Electrical System
component
2015–2016
model years
2
vehicle entries
Official summary
Service Bulletin - 2015-16 Fit: MIL Is On with DTC P0420
Vehicles covered
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.