Kia Optima: ESC (Electronic Stability Control) System / Emergency Signal System

Kia Optima DL3 2019-2022 Service and Repair Manual / Brake System / ESC (Electronic Stability Control) System / Emergency Signal System

Description and operation
Description

Introduction of quick brake warning system (ESS)

In case of quick brake by driver, the brake lamp or turn signal is blinked to warn against the vehicle at rear.

1.

Basic function (Blinking the brake lamp/emergency lamp)

Operation condition: In case of quick brake or operation of ABS above in a certain speed

Releasing condition: In case of stopping the quick brake or releasing the ABS operation

2.

Additional function (Blinking the turn signal)

Operation condition: In case of quick brake in low speed

Releasing condition: Releasing at the start of driving

System configuration

ESS Circuit diagram

Rear Wheel Speed Sensor
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Body (Interior and Exterior)
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