2017-2018 Toyota Highlander and Sienna Transaxle Whine Noise, Harsh Shift, MIL ON, or Reduced Power


Some 2017 – 2018 model year Highlander and Sienna vehicles may exhibit a whine noise while
driving, a harsh shift, MIL ON, or reduced power. The following Diagnostic Trouble Codes (DTCs) may be present...

P07457F, P07757F ,P07957F ,P28077F, P28167F, P08BA7F ,P27137F ,P07407E, P27567F, P211904 and/or P071531

For transaxles within the specified dates that meet the required symptoms, a remanufactured
transaxle is available. Follow the Repair Procedure in T-SB-0160-18 bulletin to address this condition.

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.

Greg Daisa

How should I approach this situation?
I have a 2018 Sienna and the transmission performance is horrible.