Hyundai Ioniq: Engine Electrical System

Muffler. Repair procedures

Removal and InstallationFront Muffler1.Disconnect the battery negative terminal.2.Disconnect the oxygen sensor connector (A).3.Remove the heat protector (A)...

General safety information and caution

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...

Other information:

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Driving style, Energy flow, Engine coolant temperature

Driving style Energy flow The hybrid system informs the drivers its energy flow in various operating modes. While driving, the current energy flow is specified in 11 modes. Engine coolant temperature This gauge indicates the temperature of the engine coolant when the engine is running...

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Immobilizer System

The immobilizer system helps protects your vehicle from theft. If an improperly coded key (or other device) is used, the engine's fuel system is disabled. When the Engine Start/Stop button is placed in the ON position, the immobilizer system indicator should come on briefly, then go off...