Hyundai Tucson: Introduction of Quick Brake Warning System (ESS)
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Brake System / ESC (Electronic Stability Control) System / Introduction of Quick Brake Warning System (ESS)
Description
In case of quick brake by driver, the brake lamp or turn signal is blinked to warn against the vehicle at rear.

- 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
- 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

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General Information
Troubleshooting
Specifications
Tightening Torque
Special Service Tools
Fender
Component Location
Fender assembly
Replacement
WARNING
When removing the fender, wrap protective tape around a
screwdriver or remover not to damage
components
Put on gloves to prevent hand injuries
Remove the front bumper
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Exterior Bumper Antenna
Disconnect the negative (-) battery terminal.
Lift the vehicle.
Disconnect the antenna connector (A) from the rear bumper.
Remove the antenna (B) after loosening mounting nuts.
Buzzer
Disconnect the negative (-) battery terminal.
ABS Does Not Operate/ ABS Does Not Operate (Intermittently)
ABS Does Not Operate
Detecting condition
Brake operation varies depending on driving conditions and road surface
conditions, so diagnosis can be difficult. However if a normal DTC is
displayed, check the following probable cause. When the problem
Information
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