| Component location |

| 1. HPCU (Hybrid Power Control Unit) (LDC+MCU+HCU+Reservoir) 2. Hybrid drive motor | 3. Hybrid starter generator (HSG) 4. Electrical radiator 5. Electric water pump (EWP) |
Changing the Coolant and Performing Air Bleeding Never remove the cap while the engine is hot. When you remove the cap from the reservoir, hot coolant may spew out due to the high pressure, causing serious injury.
Removal1.Remove the 12 V battery (-) cable.2.Remove the undercover.(Refer to Engine Mechanical System - "Engine Room Undercover".)3.Drain the coolant from the hybrid cooling system.
Safety PrecautionPrecautions To Take Before Servicing High Voltage System • Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage.
High Voltage Shut-off Procedures • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.