Hyundai Elantra (CN7): Anti-lock Brake System (ABS) / Hill-Start Assist Control (HAC)

The Hill-Start Assist Control (HAC) helps prevent the vehicle from rolling backwards when starting a vehicle from a stop on a hill. The system operates the brakes automatically for approximately 2 seconds and releases the brake after 2 seconds or when the accelerator pedal is depressed.

WARNING

Always be ready to depress the accelerator pedal when starting off on a incline. The HAC activates only for approximately 2 seconds.

NOTICE

  • The HAC does not operate when the shift button is in P (Park) or N (Neutral)
  • The HAC activates even though the ESC (Electronic Stability Control) is off but does not activate when the ESC has malfunctioned.

    The Vehicle Stability Management (VSM) is a function of the Electronic Stability Control (ESC) system. It helps ensure the vehicle stays stable when accelerating or braking suddenly on wet, slippery and rough roads where traction over the four tires can suddenly become uneven.

    WARNING Whenever leaving the vehicle or parking, always come to a complete stop and continue to depress the brake pedal. Move the shift button into P (Park) position, then apply the parking brake, and place the ignition switch in the LOCK/OFF position.

    Other information:

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Specifications

    S

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Parking Collision-Avoidance Assist (PCA)

    Components and components location Components and Components Location Schematic diagrams Schematic DiagramsParking Collision-Avoidance Assist (PCA) Ultrasonic sensorParking Collision-Avoidance Assist (PCA) Rear view camera Repair procedures RemovalParking Collision-Avoidance Assist (PCA) Unit1.

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