2014-2018 Corolla and iM CVT Hiss Noise Valve Body Replacement


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 bulletin T-SB-0016-19 to address this condition.

R & R CVT Valve Body Assembly, New Part Number 35410-12871

This repair is covered under the Toyota Powertrain Warranty. This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle’s in-service date.