Kia Optima DL3: Warning lights / Anti-lock Brake System (ABS) Warning Light

This warning light illuminates:

  • Once you set the ignition switch or Engine Start/Stop Button to the ON position.
    - It illuminates for approximately 3 seconds and then goes off.
  • When there is a malfunction with the ABS the warning light will remain on. The braking system will be operational without the assistance of the anti-lock brake system.

In this case, have your vehicle inspected by an authorized Kia dealer.

    This warning light illuminates: Once you set the ignition switch or Engine Start/Stop Button to the ON position. - It illuminates for approximately 3 seconds When the parking brake is applied, the warning light will remain on.

    These two warning lights illuminate at the same time while driving: • When the ABS and regular brake system may not work normally. In this case, have your vehicle inspected by an authorized Kia dealer.

    Other information:

    Kia Optima DL3 2019-2026 Service and Repair Manual: Evaporator Temperature Sensor

    Description and operation Description The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC).

    Kia Optima DL3 2019-2026 Service and Repair Manual: Auto Defogging Sensor

    Description and operation Description The auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging. The air conditioner control module receives signal from the sensor and restrains moisture and eliminate defog by controlling the intake actu

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