Hyundai Ioniq: High Voltage Battery Control System / Safety Plug. Description and operation
Safety Plug is installed on the rear side of the high voltage battery and it can mechanically shut the high voltage circuit off when servicing the high voltage system. (i.e. High Voltage Battery, Power Relay Assembly, HPCU, BMS ECU, Hybrid Drive Motor, Inverter, HSG, LDC, Power Cable, etc.)
It includes a fuse in order to prevent the high voltage system from overcurrent.

Removal1.Shut off the high voltage.(Refer to Hybrid Control System - "High Voltage Shut-off Procedures")2.Remove the rear seat cushion.(Refer to Body - "Rear Seat Assembly")3...
Specification
Item
Specification
Rated Voltage (V)400Rated Current (A)80Fuse Rated Current (A)125Fuse Melting TimeRated Current x 110%Min...
Other information:
Replacement1.Remove the front door trim.(Refer to Front Door - "Front Door Trim")2.Remove the front door belt inside weatherstrip (A).3.To install, reverse the removal procedure.
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When installing, install it by first contacting the inside part (basis point of assembly) of arrow to door frame...
High Voltage Shut-off Procedures
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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...
Categories
Seat belt warning light

As a reminder to the driver, the seat belt warning light will illuminate and
warning chime will sound for approximately 6 seconds each time you place the Engine
Start/Stop button to the ON position if the seat belt is unfastened.
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