TSB: Some 2016 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. NOTE Reference the CVT serial number information below to identify if the CVT was produced BEFORE the implemented production change.