Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Idle Stop and Go (ISG) System / 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. Turn off the engine.

2. Disconnect all electronic devices that were additionally installed after the vehicle was delivered, such as navigation, dashcam, etc.

3. After 4 hours with the engine off, turn the engine on and off 3 to 4 times.


The ISG system may not operate in the following situations.

- There is a malfunction with the ISG system.
- The battery is weak.
- The brake vacuum pressure is low. If this occurs, have the vehicle inspected by an authorized HYUNDAI dealer.


  • Use only a genuine HYUNDAI AGM battery for replacement. If not, the ISG system may not operate properly.
  • Do not recharge the AGM battery with a general battery charger. It may damage or explode the AGM battery.
  • Do not remove the battery cap. The battery electrolyte, which is harmful to the human body may leak out.
    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 ...

    Drive Mode Integrated Control System
    Type A Type B The drive mode can be selected according to the driver’s preference or road condition. The system resets to NORMAL mode, when the engine is restarted. Information If the ...

    Other information:

    Hyundai Tucson (NX4) 2022-2023 Owner's Manual: Highway Driving Assist Settings
    Highway Driving Assist With the ignition switch ON, go to Setup > Vehicle > Driver Assistance > Driving Convenience > Highway Driving Assist (for infotainment system type) from the Settings menu to turn Highway Driving Assist on and off. If Highway Driving Assist is sele ...

    Hyundai Tucson (NX4) 2022-2023 Owner's Manual: ESC OFF usage
    When Driving The ESC OFF mode should only be used briefly to help free the vehicle if stuck in snow or mud, by temporarily stopping operation of ESC, to maintain wheel torque. To turn off ESC while driving, press the ESC OFF button while driving on a flat road surface. NOTICE To prev ...

    © 2023-2023 Copyright