Toyota Sienta Inverter Coolant Malaysia

NHP170 Sienta hybrid inverter coolant is a separate circuit from the engine cooling. Check the smaller secondary reservoir under the bonnet every 20,000 km. Use Toyota SLLC pink — same fluid as engine coolant, separate circuit.

• Change inverter coolant every 4 years — same interval as engine coolant; do both at same service
• Low inverter coolant: hybrid power reduction and inverter fault code — check level before assuming inverter failure