Battery Sensor Deactivation

The battery sensor is deactivated when the battery is disconnected from the negative terminal for service purposes.

In this case, the ISG system operation is limited by battery sensor deactivation. Therefore, the driver must perform the following procedure to reactivate the battery sensor after disconnecting the battery.

Conditions for Reactivating the Battery Sensor

Turn the ignition on and off once. Park the vehicle for at least 4 hours with the hood and all doors closed.

Be extremely careful not to connect any accessories (for example, navigation or black box) to the vehicle with the engine off. Otherwise, the battery sensor cannot be reactivated.

Information

The ISG system may not operate in the following situations.

- Malfunction in the ISG system.
- Battery is weak.
- Low vacuum pressure in the brake system.

In this case, have the ISG system checked by an authorized HYUNDAI dealer.

NOTICE

• Use only original Absorbent Glass Mat (AGM) battery for replacement. Otherwise, the ISG system may not operate normally.
• Do not recharge the Absorbent Glass Mat (AGM) battery with a conventional battery charger. This may damage or explode the Absorbent Glass Mat (AGM) battery.
• Do not remove the battery compartment cover. Battery electrolyte, which is harmful to the human body, may leak.