Hyundai Tucson: Idle Stop and Go (ISG) System / Calibrating the Battery Sensor
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 needs to be calibrated following the procedure.
1. Turn off the engine.
2. Disconnect all electronic devices that were additionally installed after the vehicle was delivered, such as navigation, dashcam, etc.
3. After 4 hours with the engine off, turn the engine on and off 3 to 4 times.
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 vehicle inspected
by an authorized HYUNDAI dealer.
NOTICE
- Use only a genuine HYUNDAI AGM battery for replacement. If not, the ISG system may not operate properly.
- Do not recharge the AGM battery with a general battery charger. It may damage or explode the AGM battery.
- Do not remove the battery cap. The battery electrolyte, which is harmful to the human body may leak out.
ISG Malfunction
ISG system may not operate if:
The Auto Stop ()
indicator
illuminates in yellow on the
instrument cluster.
The ISG OFF button illuminates.
Contact an authorized HYUNDAI dealer
for ...
Drive Mode Integrated Control System
Type A
Type B
The drive mode can be selected
according to the driver’s preference or
road condition.
The system resets to NORMAL mode,
when the engine is restarted.
Information
If the ...
Other information:
Hyundai Tucson (NX4) 2022-2026 Service Manual: Transaxle Control Module (TCM)
- Description
• Monitoring the vehicle's operating conditions to determine the optimal gear setting.
• Performing a gear change if the current gear setting differs from the identified optimal gear setting.
• Determining the need for damper clutch (D/C) activation and engages the clut ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Troubleshooting
- Troubleshooting
SymptomPossible causeRemedy
Hard steeringImproper front wheel alignmentCorrect
Excessive turning resistance of lower arm ball jointReplace
Low tire pressureAdjust
No power assistRepair and replace
Poor return of steering wheel to centerImproper front wheel alignmentCorrect
...
