Toyota Corolla 2014–2018 — technical service bulletin
Bulletin T-TT-0500-18 · NHTSA communication 10142872 · issued Jun 6, 2018
Technical service bulletin
communication type
Power Train
component
2014–2018
model years
5
vehicle entries
Official summary
TT: Some 2014 ? 2018 model year Corollas may experience a dark red or black colored fluid leak between the engine and transmission bell housing.
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.