KIA Niro: Multi-Collision Brake (MCB)

Multi-Collision Brake controls the brake automatically in the event of an accident where the air bag deploys to reduce the risk of additional accidents that may occur.

System operation

From the time the air bag deploys, Multi-Collision Brake monitors the depression intensity of the brake pedal and accelerator pedal for a short period. The system operates when the following conditions are met:

  • Vehicle speed is under 180 km/h (112 mph) at the time of collision.
  • The brake pedal and accelerator pedal are hardly depressed.

When the driver steps on the brake pedal over a certain level while Multi- Collision Brake is active, the braking power takes priority over automatic braking by Multi-Collision Brake system.

However, if the driver takes his/ her foot off the brake pedal, Multi- Collision Brake system will maintain automatic braking.

System off

Multi-Collision Brake is canceled in the following situations:

  • The accelerator pedal is depressed over a certain level.
  • The vehicle stops.
  • ESC (Electronic Stability Control) or electronic devices has malfunctioned.
  • In a situation system cannot operate normally.
  • Ten seconds have passed since the brake has been controlled automatically by Multi-Collision Brake system.


  • Multi-Collision Brake decreases vehicle speed after a collision and reduces the risk of a second collision, but it does not prevent a second collision.

    You may drive away from the collision spot to avoid other dangerous situations by depressing the accelerator pedal.

  • After the vehicle is stopped by Multi Collision Brake, the system stops controlling the brakes.

    Depending on the situation, the driver should depress the brake or the accelerator pedal to prevent further accidents.


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