Kia Optima DL3: Electronic stability control (ESC) / ESC operation off
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. Upon restarting the engine, the ESC will automatically turn on again.
• ESC off state 1
To cancel ESC operation, press the ESC OFF button (ESC OFF
) shortly (ESC OFF indicator light (ESC
OFF
) illuminates). At this state, the
engine control function does not operate.
It means the traction control function does not operate. Brake control function only operates.
• ESC off state 2
To cancel ESC operation, press the ESC OFF button (ESC OFF
) for more than 3 seconds. ESC OFF indicator
light (ESC OFF
) illuminates and ESC
OFF warning chime will sound.
At this state, the engine control function and brake control function do not operate. It means the car stability control function does not operate any more.
ESC ON condition When the ignition is turned ON, ESC and ESC OFF indicator lights illuminate for approximately 3 seconds, then ESC is turned on.
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.
Other information:
Kia Optima DL3 2019-2026 Service and Repair Manual: Rheostat
Schematic diagrams Connector and Terminal Function Repair procedures Removal 1. Disconnect the negative battery terminal. 2. Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3.
Kia Optima DL3 2019-2026 Service and Repair Manual: Power Door Lock Switch
Repair procedures Inspection Power Window Main Switch Diagnosis With KDS 1. In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (KDS). The diagnostic system (KDS) provides the following information.
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