Honda Civic 2016–2017 — technical service bulletin
Bulletin A26-099 · NHTSA communication 11036654 · issued Aug 28, 2026
Technical service bulletin
communication type
Engine
component
2016–2017
model years
2
vehicle entries
Official summary
Service Bulletin - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire, and/or DTCs P0300 thru P0304 stored.
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.