Honda Civic 2016–2022 — technical service bulletin
Bulletin ONL6A506122023 · NHTSA communication 10237958 · issued Jun 12, 2023
Technical service bulletin
communication type
Visibility
component
2016–2022
model years
13
vehicle entries
Official summary
Owner Notification Letter - Due to a new North America regulation that introduced a new refrigerant and oil requirement, the compressor shaft seal may leak. The new refrigerant and oil may cause swelling of the compressor shaft seal. The swelling may lead to abnormal wearing of the seal which may increase seal gaps around the compressor shaft allowing refrigerant to leak out.
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.