Hyundai Sonata: ESC operation - Electronic stability control (ESC) - Brake system - Driving your vehicleHyundai Sonata: ESC operation

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.
  • Press the ESC OFF button for at least half a second after turning the ignition ON to turn ESC off. (ESC OFF indicator will illuminate). To turn the ESC on, press the ESC OFF button (ESC OFF indicator light will go off).
  • When starting the engine, you may hear a slight ticking sound. This is the ESC performing an automatic system self-check and does not indicate a problem.

When operating

When the ESC is in operation, ESC indicator light blinks.

When the ESC is in operation, ESC indicator light blinks.

  • When the Electronic Stability Control is operating properly, you can feel a slight pulsation in the vehicle. This is only the effect of brake control and indicates nothing unusual.
  • When moving out of the mud or driving on a slippery road, pressing the accelerator pedal may not cause the engine rpm (revolutions per minute) to increase.

ESC operation off

ESC OFF state

ESC OFF state

  • To cancel ESC operation, press the ESC OFF button (ESC OFF indicator light illuminates).
  • If the ignition switch is turned to LOCK position when ESC is off, ESC remains off. Upon restarting the engine, the ESC will automatically turn on again.
    Electronic stability control (ESC)
    The Electronic Stability control (ESC) system is designed to stabilize the vehicle during cornering maneuvers. ESC checks where you are steering and where the vehicle is actually going. ESC ap ...

    Indicator light
    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 illumina ...

    See also:

    Impact sensing door unlock system (if equipped)
    All doors will be automatically unlocked when the impact is delivered to impact sensors while the ignition switch is ON. However, the doors may not be unlocked if mechanical problems occur with th ...

    Engine Control Module (ECM). Schematic Diagrams
    ECM Terminal And Input/Output signal ECM Terminal Function Connector [CHG-AG] Pin No. Description Connected to 1 I ...

    Accelerator Position Sensor (APS). Specifications
    Specification Accelerator Position Output Voltage (V) APS1 APS2 C.T 0.7 ~ 0.8 0.29 ~ 0.46 ...