Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Idle Stop and Go (ISG) System / ISG System Off

Type A

Type B

Press the ISG OFF button to turn off the ISG system. The ISG OFF button indicator illuminates. To use the system, press the ISG OFF button again.

    ISG System Operation
    Prerequisite for activation The driver's seatbelt is fastened. The driver's door and hood are closed. The brake vacuum pressure is adequate. The battery sensor is activated and the bat ...

    Conditions that Restart the Engine
    The engine is automatically restarted if: The brake vacuum pressure is low. The engine has stopped for about 5 minutes. The air conditioning is ON with the fan speed set to a certain hig ...

    Other information:

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Schematic Diagrams
    - Schematic Diagram     • The ISG system is strongly networked with the power management. • In the event of battery replacement, disconnection of the battery terminal or after changing the engine management system, the reference data regarding the battery charge stat ...

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Mass Air Flow Sensor (MAFS)
    - Description MAFS uses a hot-film type sensing element to measure the mass of intake air entering the engine, and send the signal to ECM.A large amount of intake air represents acceleration or high load conditions while a small amount of intake air represents deceleration or idle. The ECM ...

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