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: Rear Window Defroster
    NOTICE Never use sharp instruments or window cleaners containing abrasives to clean the window to prevent damage to the rear window defroster. The defroster heats the window to remove frost, fog, and thin ice from the interior and exterior of the rear window, while the engine is ...

    Hyundai Tucson (NX4) 2022-2026 Service Manual: Fuel Filter
    - Removal 1.Remove the fuel pump.(Refer to Fuel Delivery System - "Fuel Pump") 2.Disconnect the fuel sender connector (A). 3.Release the fixing hook (A) and then remove fuel sender (B) in the arrow direction. 4.Disconnect the fuel pump motor connector (A). 5.Remove the fixing pin (A) ...

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