Toyota Corolla 2014–2018 — technical service bulletin
Bulletin T-SB-0016-19 · NHTSA communication 10153252 · issued Jan 25, 2019
Technical service bulletin
communication type
Power Train
component
2014–2018
model years
7
vehicle entries
Official summary
TSB: Some 2014 ? 2018 model year Corolla and 2017 ? 2018 model year iM vehicles equipped with the K313 Continuously Variable Transaxle (CVT) may exhibit a high-pitched hiss or whine noise after the vehicle has reached normal operating temperature. This condition may be caused by the valve body plate inside the CVT assembly. Follow the Repair Procedure in this bulletin to address this condition.
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.