Hyundai Tucson Owners & Service Manuals

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

    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 ...

    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 ...

    Other information:

    Hyundai Tucson (NX4) 2022-2026 Owner's Manual: EPB malfunction
    Electronic Parking Brake (EPB) warning light illuminates if the ignition switch is in the ON position and goes off in about 3 seconds if the system is operating normally. If the EPB warning light remains on, comes on while driving, or does not come on when the ignition switch is ON, t ...

    Hyundai Tucson (NX4) 2022-2026 Service Manual: Heater Core
    - Replacement 1.Disconnect the negative (-) battery terminal. 2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit") 3.Loosen the mounting screws and remove the heater core cover (A). 4.Separate the heater core (A) from the heater unit. 5.Install in the reverse ord ...

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