L-SB-0033-23

TSB: Some 2019 ? 2021 model year ES 300h vehicles equipped with a A25A-FXS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P05A074 (Active Grill Air Shutter ?A? Actuator Slipping). To address these concerns, an updated radiator shutter sub-assembly was developed. Follow the Repair Procedure in this bulletin to address this condition.