Kia Optima: ESC (Electronic Stability Control) System / Emergency Signal System
Description and operation
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)
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Operation condition: In case of quick brake or operation of ABS
above in a certain speed
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– |
Releasing condition: In case of stopping the quick brake or releasing
the ABS operation
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2. |
Additional function (Blinking the turn signal)
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Operation condition: In case of quick brake in low speed
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Releasing condition: Releasing at the start of driving
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System configuration

ESS Circuit diagram

Components and components location
Components
1. Rear wheel speed sensor
2. Rear wheel speed sensor connector
Repair procedures
Remova ...
Service data
Service Data
Items
Specification
Hood
Type
Rear hinged, gas lifter type
Front Door
...
Other information:
The air intake control is used to select the outside (fresh) air position or
recirculated air position.
To change the air intake control position, press the control button.
Recirculated air position
With the recirculated air position selected, air from the passenger compartment
will be dr ...
Filter replacement
The air filter must be replaced when necessary, and should not be washed.
While inspecting the air clear element, the air filter can be cleaned using compressed
air.
1. Pull out the air cleaner cover.
2. Unlock by turning the locking lever downward.
3. Pull the air ...