Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Idle Stop and Go (ISG) System / ISG System Off

Type A

Type B

Press the ISG OFF button to turn off the ISG system. The ISG OFF button indicator illuminates. To use the system, press the ISG OFF button again.

    ISG System Operation
    Prerequisite for activation The driver's seatbelt is fastened. The driver's door and hood are closed. The brake vacuum pressure is adequate. The battery sensor is activated and the bat ...

    Conditions that Restart the Engine
    The engine is automatically restarted if: The brake vacuum pressure is low. The engine has stopped for about 5 minutes. The air conditioning is ON with the fan speed set to a certain hig ...

    Other information:

    Hyundai Tucson (NX4) 2022-2026 Service Manual: Repair procedures
    - On-vehicle Inspection Inspect ignition coil assembly and Perform spark test 1.Check for DTCs.     • If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide) 2.Check if sparks occur. â–  Without diagnostic tool(1)Rem ...

    Hyundai Tucson (NX4) 2022-2026 Service Manual: Crankcase Emission Control System
    Description and Operation - Description A : Crankcase pressure regulating valve (PRV)B : Breather hoseC : Intake hoseD : Air flowE : Intake manifoldF : Cylinder block â‘  Blow-by gas flowâ‘¡ Blow-by gas inflow to the cylinder head cover throungh the cylinder block & head & chain c ...

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