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Home > Driving your vehicle > Blind-Spot Collision-Avoidance Assist (BCA) > Limitations of Blind-Spot Collision-Avoidance Assist

Limitations of Blind-Spot Collision-Avoidance Assist

The driver must be cautious in the below situations, because the function may not detect other vehicles or objects in certain circumstances.

  • The function may not work around 15 seconds after starting the vehicle or the initialization or rebooting of the front view camera.

  • When a trailer or carrier is installed.

  • The vehicle drives in inclement weather such as heavy rain or snow.

  • The sensors are polluted with rain, snow, mud, etc.

  • The rear bumper where the sensors are located is covered with a foreign object such as a bumper sticker, a bumper guard, a bike rack, etc.

  • The rear bumper is damaged, or the sensors are out of the original default position.

  • The vehicle height gets lower or higher due to heavy loading in a tailgate, abnormal tire pressure, etc.

  • When the temperature of the rear bumper is high.

  • When the sensors are blocked by other vehicles, walls or parking-lot pillars.

  • The vehicle drives on a curved road.

  • The vehicle drives through a tollgate.

  • The road pavement (or the peripheral ground) abnormally contains metallic components (i.e. possibly due to subway construction).

  • There is a fixed object near the vehicle, such as a guardrail, pedestrians, animals or tunnel, etc.

  • While going down or up a steep road where the height of the lane is different.

  • Driving on a narrow road where trees or grass or overgrown.

  • Driving in rural areas where the sensor does not detect another vehicle or structure for an extended period of time.

  • Driving on a wet road.

  • Driving on a road where the guardrail or wall is in double structure.

  • A big vehicle is near such as a bus or truck.

  • When the other vehicle approaches very close.

  • When the other vehicle passes at a very fast speed.

  • While changing lanes.

  • If the vehicle has started at the same time as the vehicle next to you and has accelerated.

  • When the vehicle in the next lane moves two lanes away from you OR when the vehicle two lanes away moves to the next lane from you.

  • A motorcycle or bicycle is near.

  • A flat trailer is near.

  • If there are small objects in the detecting area such as a shopping cart or a baby stroller.

  • If there is a low height vehicle such as a sports car.

  • The brake pedal is depressed.

  • ESC (Electronic Stability Control) is activated.

  • ESC (Electronic Stability Control) malfunctions.

  • The tire pressure is low or a tire is damaged.

  • The brake is reworked.

  • The vehicle abruptly changes driving direction.

  • The vehicle makes sharp lane changes.

  • The vehicle sharply stops.

  • Temperature is extremely low around the vehicle.

  • The vehicle severely vibrates while driving over a bumpy road, uneven/bumpy road, or concrete patch.

  • The vehicle drives on a slippery surface due to snow, water puddle, or ice.

  • Lane Keeping Assist does not operate normally. (if equipped)

  • For more details, refer to More Details.