Battery Sensor Calibration
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 must be calibrated according to the procedure.
1. Turn off the engine.
2. Disconnect all electronic devices that were installed after the vehicle was delivered, such as navigation, dash cam, etc.
3. After 4 hours with the engine off, turn the engine on and off 3-4 times.
Information
The ISG system may not operate in the following situations.
- Malfunction of the ISG system.
- Battery is weak.
- Low brake booster vacuum pressure. In this case, have the vehicle inspected by an authorized HYUNDAI dealer.
NOTICE
- Use only genuine HYUNDAI AGM battery for replacement. Otherwise, the ISG system may not operate properly.
- Do not recharge the AGM battery with a conventional battery charger. This may damage or explode the AGM battery.
- Do not remove the battery compartment cover. Battery electrolyte, which is harmful to the human body, may leak.
Test yourself
A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.