Hyundai Elantra (CN7): ISG (Idle Stop and Go) system / To Deactivate the ISG System

  • Press the ISG OFF button to deactivate the ISG system. Then, the ISG OFF button indicator illuminates.
  • Press the ISG OFF button again to reactivate the ISG system. Then, the ISG OFF button indicator turns OFF.

    Prerequisite for activation The ISG system operates in the following situations. 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 battery is sufficiently charged Outside temperature is not too low or too high The vehicle is driven over a constant speed and stops The climate control system satisfies the conditions The vehicle is sufficiently warmed up The incline is gradual The steering wheel is turned less than 180 degrees and then the vehicle stops Information If the ISG light (white) is turned on on the instrument cluster and does not meet the ISG system operating conditions, the ISG system is not activated.

    The ISG system may not operate: When there is a malfunction with the ISG sensors or the ISG system. The followings occur, when there is a malfunction with the ISG system: The auto stop indicator ( ) will illuminate in yellow on the instrument cluster.

    Other information:

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and components location

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    Hyundai Elantra (CN7) 2021-2025 Service Manual: Troubleshooting

    TroubleshootingProblem Symptoms TableBefore replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor.Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem.

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