Hyundai Ioniq: Engine Mechanical System / Lubrication System

Repair procedures

Removal and installation    • Check for foreign objects caught in the flap and linkage area.1.Disconnect the battery negative terminal...

Engine Oil. Repair procedures

Engine Oil and Filter Replacement    • Prolonged and repeated contact with mineral oil will result in the removal of natural fats from the skin, leading to dryness, irritation and dermatitis...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Description and operation

DescriptionThe high voltage battery system consists of the BMS ECU (Battery Management System ECU), Power Relay Assembly (PRA), safety plug, battery temperature sensor, and battery ambient sensor. Especially the BMS ECU controls SOC (State Of Charge), power, cell balancing, cooling and troubleshooting of the high voltage battery system...

Hyundai Ioniq (AE) 2017-2025 Service Manual: Inspection

Inspection[Battery Pack Assembly Troubleshooting Chart]    • For SOC check, refer to "SOC Inspection"• For voltage check, refer to "Battery Voltage Inspection"• For battery voltage sensing circuit, refer to "Voltage Sensing Circuit Inspection"• For isolation resistance check, refer to "Isolation Resistance Inspection" [SOC Level and Follow-up] SOC Symptom Warning Lamp Follow-up MIL Service Fuel • Normal ---  10 - 15% • Motor torque limite (Acceleration delay)--ON• Refuel and check the SOC againON--• Repair the MIL or Service Lamp related system• Charge the battery by starting the engine• Refuel if necessary ONON--ON-OnONON 5 - 10% • EV Mode inhibited • FATC Inhibited • LDC Inhibited --ON• Refuel and check the SOC againON--• Repair the MIL or Service Lamp related system• Charge the battery by starting the engine • Refuel if necessaryONON--ON-ONONON 0 - 5% • Impossible to start ON--• Repair the MIL or Service Lamp related system• Start the engine with GDS to charge the battery• Refuel if necessary ONON--ON-ONONON 0% ON--• Repair the MIL or Service Lamp related system• If necessary, Replace Battery Pack• Refuel if necessary [SOC Inspection]1...