Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: Windshield defrosting and defogging / Defogging logic

To help reduce the probability of fogging up the inside of the windshield, the air intake or air conditioning are controlled automatically according to certain conditions such as or position. To cancel or return the defogging logic, do the following

Manual climate control system

1. Turn the ignition switch to the ON position.

2. Select defroster mode ().

3. Press the air intake control button at least 5 times within 3 seconds. The process should be completed within 10 seconds after the defroster mode () is selected.

The LED indicator on the air intake button will blink 3 times to indicate that the defogging logic has been disabled.

Repeat the steps again to re-enable the defogging logic.

If the battery has been discharged or disconnected, it resets to the defog logic status.

Automatic climate control system

1. Turn the ignition switch to the ON position.

2. Press the defroster button ().

3. While pressing the air conditioning button (A/C), press the air intake control button at least 5 times within 3 seconds.

The automatic climate control information screen will blink 3 times to indicate that the defogging logic has been disabled.

Repeat the steps again to re-enable the defogging logic.

If the battery has been discharged or disconnected, it resets to the defog logic status.

    Automatic climate control system

    To defog inside windshield 1. Select desired fan speed. 2. Select desired temperature. 3. Press the defroster button (). 4. The air-conditioning will turn on according to the detected ambient temperature, fresh mode and higher fan speed will be selected automatically...

    Auto defogging system (only for automatic climate control system)

    Auto defogging helps reduce the possibility of fogging up the inside of the windshield by automatically sensing the moisture on inside the windshield...

    Other information:

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Schematic diagrams


    Terminal Function[EPB None Apply] PIN No Desciption Current max min 1Voltage supply for pump motor40A10 MΩ2Hazard switch1...

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Repair procedures


    InspectionCheck it by the procedure below to see if the function of the ECM is normal.1.Turn the ignition key to the "ON" position.2.Cover the forward facing sensor.3.Head a light to the rearward looking sensor.4.The ECM should be darkened as soon as the rearward looking sensor detects the light...

    Categories

    Function malfunction and limitations

    Function malfunction

    When High Beam Assist is not working properly, the ‘Check High Beam Assist (HBA) system’ or ‘Check HBA (High Beam Assist) system’ warning message will appear and warning light will illuminate on the cluster. Take your vehicle to an authorized HYUNDAI dealer and have the function checked.

    read more

    Copyright © 2025 www.helantra7.com