Honda Accord 2017–2018 — technical service bulletin
Bulletin A18-117 · NHTSA communication 10145897 · issued Oct 10, 2018
Technical service bulletin
communication type
Lane Departure
component
2017–2018
model years
3
vehicle entries
Official summary
Servicenews article - Have you replaced the BSI radar unit and see these DTC's? ? B18DA (L/S different s/w version from right) ? B1EDA (R/S different s/w version from left)
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.