Honda Accord 2018–2022 — technical service bulletin
Bulletin A23-026 · NHTSA communication 10233208 · issued Mar 14, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2022
model years
5
vehicle entries
Official summary
Service Bulletin - Under certain circumstances, the vehicle may experience driveability concerns. This may result in the following DTCâ s to set: â ¢ P0300 (Random Misfire Detected), â ¢ P0301 (No. 1 Cylinder Misfire Detected), â ¢ P0302 (No. 2 Cylinder Misfire Detected), â ¢ P0303 (No. 3 Cylinder Misfire Detected), â ¢ P0304 (No. 4 Cylinder Misfire Detected), â ¢ P0172 (Fuel System Too Rich)
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.