Kia Optima DL3: Electronic stability control (ESC) / ESC OFF usage
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.
WARNING - Operating ESC
Never press the ESC OFF button while ESC is operating (ESC indicator light blinks).
If ESC is turned off while ESC is operating, the vehicle may slip out of control.
✽ NOTICE
- When operating the vehicle on a dynamometer, ensure that the ESC is turned off (ESC OFF light illuminated). If the ESC is left on, it may prevent the vehicle speed from increasing, and result in false diagnosis.
- Turning the ESC off does not affect ABS or brake system operation.
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.
This system provides further enhancements to vehicle stability and steering responses when a vehicle is driving on a slippery road or a vehicle detects changes in coefficient of friction between right wheels and left wheels when braking.
Other information:
Kia Optima DL3 2019-2026 Service and Repair Manual: Integrated Body Control Unit (IBU)
Components and components location Component Location 1. Integrated Body Control Unit (IBU) Schematic diagrams Connector and Terminal Function [Non-Smart key] Pin Function Connector A Connector B
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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