Hyundai Tucson Owners & Service Manuals

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

ISG system may not operate if:

  • The Auto Stop () indicator illuminates in yellow on the instrument cluster.
  • The ISG OFF button illuminates.

Contact an authorized HYUNDAI dealer for assistance.

    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 ...

    Calibrating the Battery Sensor
    If the AGM battery is reconnected or replaced, the ISG system does not operate immediately. If you want to use the system, the battery sensor needs to be calibrated following the procedure. 1 ...

    Other information:

    Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Push Button Start Ignition Switch
    Whenever the front door is opened, the Push Button Start ignition switch illuminates and goes off 30 seconds after the door is closed. WARNING To turn off the vehicle in an emergency: Press and hold the Push Button Start ignition switch for more than two seconds. Or rapidly press and ...

    Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Automatic Reversal
    If the power sunshade or sunroof glass senses any obstruction while closing, it reverses direction then stops. The automatic reverse feature may not work if a thin or soft object is caught between the sliding power sunshade or sunroof glass and sunroof sash. WARNING Make sure that ...

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