Preconditions for Battery Sensor Reactivation

Keep the engine off for 4 hours, then try to restart the engine 3-4 times to reactivate the battery sensor.

Take extreme care not to connect any accessories (such as 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.

- A malfunction has occurred in the ISG system.
- The battery is weak.
- Brake system pressure is low. In such cases, we recommend having the ISG system inspected by an authorized HYUNDAI dealer.

NOTICE

• Use only genuine HYUNDAI ISG battery for replacement. Otherwise, the ISG system may not operate normally.
• Do not charge the ISG battery with a conventional battery charger. Otherwise, the ISG battery may be damaged or explode.
• Do not remove the battery compartment cover. Otherwise, battery electrolyte, which is harmful to the human body, may leak.