Hyundai Ioniq: Forward Collision-Avoidance Assist (FCA) system / FCA Warning Message and System Control

Hyundai Ioniq (AE) 2017-2025 Owner's Manual / Driving your vehicle / Forward Collision-Avoidance Assist (FCA) system / FCA Warning Message and System Control

The FCA produces warning messages and warning alarms in accordance with the collision risk levels, such as abrupt stopping of the vehicle in front, insufficient braking distance, or pedestrian detection. Also, it controls the brakes in accordance with the collision risk levels.

The driver can select the initial warning activation time in the User Settings in the LCD display. The options for the initial Forward Collision Warning include Early, Normal or Late initial warning time.

Collision Warning (1st warning) - Yellow

Hyundai Ioniq. FCA Warning Message and System Control

This initial warning message appears on the LCD display with a warning chime.

Collision Warning (2nd warning) - Red

Hyundai Ioniq. FCA Warning Message and System Control

This warning message appears on the LCD display with a warning chime. Additionally, some vehicle system intervention occurs by the engine management system to help decelerate the vehicle.

- Your vehicle speed may decelerate moderately.
- The FCA system limitedly controls the brakes to preemptively mitigate impact in a collision.

Emergency braking (3rd warning)

Hyundai Ioniq. FCA Warning Message and System Control

This warning message appears on the LCD display with a warning chime.

Additionally, some vehicle system intervention occurs by the engine management system to help decelerate the vehicle.

- The FCA system limitedly controls the brakes to preemptively mitigate impact in a collision. The brake control is maximized just before a collision.

Brake operation

  • In an urgent situation, the braking system enters into the ready status for prompt reaction against the driver's depressing the brake pedal.
  • The FCA provides additional braking power for optimum braking performance, when the driver depresses the brake pedal.
  • The braking control is automatically deactivated, when the driver sharply depresses the accelerator pedal, or when the driver abruptly operates the steering wheel.
  • The FCA brake control is automatically canceled, when risk factors disappear.

CAUTION

The driver should always use extreme caution while operating the vehicle, whether or not there is a warning message or alarm from the FCA system.

WARNING

The braking control cannot completely stop the vehicle nor avoid all collisions. The driver should hold the responsibility to safely drive and control the vehicle.

WARNING

The FCA system logic operates within certain parameters, such as the distance from the vehicle or pedestrian ahead, the speed of the vehicle ahead, and the driver's vehicle speed. Certain conditions such as inclement weather and road conditions may affect the operation of the FCA system.

WARNING

Never deliberately drive dangerously to activate the system.

    System Setting and Activation

    System setting The driver can activate the FCA by placing the Engine Start/Stop button to the ON position and by selecting: 'User Settings → Driver Assistance → Forward Collision-Avoidance Assist' The FCA deactivates, when the driver deselects the system setting...

    FCA Sensor

    In order for the FCA system to operate properly, always make sure the radar sensor cover is clean and free of dirt, snow, and debris. Dirt, snow, or foreign substances on the lens may adversely affect the sensing performance of the sensor...

    Other information:

    Hyundai Ioniq (AE) 2017-2025 Service Manual: Mode Control Actuator. Components and components location


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    Hyundai Ioniq (AE) 2017-2025 Service Manual: DCT Control Module (TCM). Schematic diagrams


    1. TCM Connector and Terminal Function2. TCM Terminal FunctionConnector [A] Pin Description Pin Description 1Clutch Actuator (Clutch Motor 1 (ODD)_Phase V)17-2Clutch actuator (Clutch Motor 2 (EVEN) Phase V)18Clutch Actuator (Clutch Motor 1 (ODD)_HALL 1)3Select Actuator (Select Solenoid 2 (EVEN)_Ground)19Clutch Actuator (Clutch Motor 1 (ODD)_Sensor Supply)4Select Actuator (Select Solenoid 1 (ODD) Push)20Select Actuator (Select Solenoid 1 (ODD)_Sensor Sensor Supply)5Clutch Actuator (Clutch Motor 1 (ODD)_Phase U)21Select Actuator (Select Solenoid 2 (EVEN)_Sensor Sensor Supply)6Clutch Actuator (Clutch Motor 2 (EVEN)_Phase U)22Select Actuator (Select Solenoid 2 (EVEN)_Sensor Ouput)7Select Actuator (Select Solenoid 1 (ODD)_Ground)23Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 2)8Select Actuator (Select Solenoid 2 (EVEN)_ Pull)24Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 3)9Clutch Actuator (Clutch Motor1 (ODD)_Phase W)25Clutch Actuator (Clutch Motor 2 (EVEN)_Ground)10Clutch Actuator (Clutch Motor 2 (EVEN)_Phase W)26Select Actuator (Select Solenoid 1 (ODD)_Sensor Output)11Select Actuator (Select Solenoid 1 (ODD) Pull)27-12Select Actuator (Select Solenoid 2 (EVEN) Push)28Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 1)13Clutch Actuator (Clutch Motor 1 (ODD)_HALL 2)29Clutch Actuator (Clutch Motor 2 (EVEN)_Sensor Supply)14Clutch Actuator (Clutch Motor (ODD)_HALL 3)30Select Actuator (Select Solenoid 1 (ODD)_Sensor Ground)15Clutch Actuator (Clutch Motor 1 (ODD)_Ground)31Select Actuator (Select Solenoid 2 (EVEN)_Sensor Ground)16-32-Connector [B] Pin Description Pin Description 1-35-2-36-3ON / START Input37-4Paddle Shift (Up) Switch signal38-5Inhibitor Switch "P" Input signal39-6Inhibitor Switch "R" Input signal40-7Inhibitor Switch "D" Input signal41Shift Actuator (Shift Motor 2 (EVEN) _HALL 2)8Sports mode "Down" shift42Shift Actuator (Shift Motor 2 (EVEN) _HALL 3)9Clutch Speed Sensor (EVEN) Ground43Inhibitor Switch "M" Input signal10-44CAN1 Communication Port1 High11-45CAN1 Communication Port1 Low12-46-13Shift Actuator (Shift Motor 1 (ODD) _HALL 2)47-14Shift Actuator (Shift Motor 1 (ODD) _HALL 3)48Flex ray High (BP)15-49Input Speed Sensor Supply 1 (ODD)16-50Input Speed Signal 1 (ODD)17Battery Power Low VBD 51-18Paddle Shift Down signal52-19Shift Lever Select Switch53-20Inhibitor Switch "N" Input signal54Shift Actuator (Shift Motor 2 (EVEN) _Sensor Supply)21Sports mode "Up" shift55Shift Actuator (Shift Motor 2 (EVEN) _HALL 1)22-56Shift Actuator (Shift Motor 2 (EVEN) _Sensor Ground)23Input Speed Sensor Supply 2 (EVEN)57Power Ground 1 for High Current Modules245V spare Sensor Supply output58Power Ground 2 for High Current Modules25-59Shift Actuator (Shift Motor 2 (EVEN)_Phase W)26Shift Actuator (Shift Motor 1 (Odd)_Sensor Supply)60Shift Actuator (Shift Motor 1 (ODD)_Phase W)27Shift Actuator (Shift Motor 1 (ODD)_HALL 1)61 Power Ground 3 for High Current Modules28Select Actuator (Shift Motor 1 (ODD)_Sensor Ground)62-29-63Shift Actuator (Shift Motor 2 (EVEN)_Phase V)30CAN2 Communication Port2 High64Shift Actuator (Shift Motor 1 (ODD)_Phase V)31CAN2 Communication Port2 Low65Motor Sensor Supply Voltage 1 from Direct Battery32-66Motor Sensor Supply Voltage 2 from Direct Battery33-67Shift Actuator (Shift Motor 2 (EVEN)_Phase U)34Flex ray bus, BM68Shift Actuator (Shift Motor 1 (ODD)_Phase U)3...

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