Kia Optima DL3: Electronic stability control (ESC) / Indicator light

When ignition switch is turned to ON, the indicator light illuminates, then goes off if the ESC system is operating normally.

The ESC indicator light blinks whenever ESC is operating or illuminates when ESC fails to operate.

The ESC OFF indicator light comes on when the ESC is turned off with the button.

WARNING - Electronic stability control

Drive carefully even though your vehicle has Electronic Stability Control. It can only assist you in maintaining control under certain circumstances.

    ESC OFF state There are 2 types of ESC OFF states; Traction Control disabled and Traction & Stability Control disabled. If the ignition is turned off when ESC is off, ESC remains off.

    When driving ESC should be turned on for daily driving whenever possible. To turn ESC off while driving, press the ESC OFF button while driving on a flat road surface.

    Other information:

    Kia Optima DL3 2019-2026 Service and Repair Manual: Washer Switch

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    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).

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