Monitor Description
WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.
While HV battery refrigerant is cooling, if the HV battery temperature is high and the HV battery temperature increases by the specified value or higher, the battery ECU assembly illuminates the MIL and stores a DTC.