TSB: Some 2009 ? 2017 model year Corolla vehicles equipped with the 2ZR-FE or 2ZR-FAE engines may exhibit a condition in which engine oil leaks between the engine block and transaxle. The source of the leak may be caused by a leaking oil galley plug. The purpose of this bulletin is to provide a Repair Procedure to remove/replace the engine oil galley plug located at the back of the engine block. Follow the Repair Procedure in this bulletin to address this condition.