Hyundai Palisade (LX2): ISG (Idle Stop and Go) system / Battery Sensor Deactivation

Hyundai Palisade. Battery Sensor Deactivation

The battery sensor is deactivated, when the battery is disconnected from the negative pole for maintenance purpose.

In this case, the ISG system is limitedly operated due to the battery sensor deactivation. Thus, the driver needs to take the following procedures to reactivate the battery sensor after disconnecting the battery.

Prerequisites to reactivate the battery sensor

Switch "ON" and "OFF" the ignition one time. Park the vehicle for a minimum of 4 hours with the hood and all doors closed.

Pay extreme caution not to connect any accessories (i.e. navigation and black box) to the vehicle with the engine in the OFF status. If not, the battery sensor may not be reactivated.

Information

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 ISG system checked by an authorized HYUNDAI dealer.

NOTICE

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

    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 blink in yellow on the instrument cluster.

    The drive mode may be selected according to the driver's preference or road condition. Drive Mode The mode changes whenever the DRIVE MODE selection knob is rotated.

    Other information:

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    Hyundai Palisade (LX2) 2020-2026 Service Manual: Schematic diagrams

    System Block Diagram Component Parts And Function Outline Component part Function Vehicle-speed sensor, ESP/ABS Control Module Converts vehicle speed to pulse. ECM Receives signals from sensor and control switches.

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