Hyundai Ioniq (AE): Safety Precautions for Hybrid System / Safety Plug

â–  HPCU (Hybrid Power Control Unit) â–  High Voltage Battery System WARNING Never touch orange colored or high voltage labeled components, including wires, cables, and connections.

â–  Hybrid vehicle â–  Plug-in hybrid vehicle The high-voltage battery cooling duct is located on the left side of the rear seats. The cooling duct cools down the high-voltage battery.