Honda Ridgeline 2017–2020 — technical service bulletin
Bulletin A20-002 · NHTSA communication 10172364 · issued Mar 3, 2020
Technical service bulletin
communication type
Fuel System, Gasoline
component
2017–2020
model years
4
vehicle entries
Official summary
Service Bulletin - The MIL is on with DTC P2422 (EVAP canister vent shut valve stuck closed malfunction).
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.