When BCA or a related component malfunctions, a warning message and the Master X warning light appears on the instrument cluster. Also, when the side view mirror is not working properly, a warning message and the Master X warning light appears on the instrument cluster. When the detecting sensors are obscured, the system may be temporarily limited or disabled. The system operates properly when foreign material is removed from the sensors. If the system does not operate properly after it is removed, have your vehicle inspected by an authorized HYUNDAI dealer.

For more information, refer to Driver Assistance System Warnings and Indicators.

BCA uses the following sensor:

• Rear corner radar

For more information, refer to Sensor Information.

BCA may not operate properly, or it may operate unexpectedly under the following circumstances:

• Driving on a highway ramp

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

• There is inclement weather, such as heavy snow, heavy rain, etc.

• The rear corner radar is covered with snow, rain, dirt, etc.

• The temperature around the rear corner radar is high or low

• The rear corner radar is blocked by other vehicles, walls or pillars

• Driving on a highway ramp or driving through a tollbooth

• The road pavement (or the peripheral ground) abnormally contains metallic components (for example, possibly due to subway construction)

• There is a fixed object near the vehicle, such as sound barriers, guardrails, central dividers, entry barriers, street lamps, signs, tunnels, walls, etc. (including double structures)

• Driving through a narrow road where trees or grass are overgrown

• Driving in vast areas where there are few vehicles or structures (for example, desert, meadow, suburb, etc.)

• Driving on a wet road surface, such as a puddle on the road

• The other vehicle drives very close behind your vehicle, or the other vehicle passes by your vehicle in close proximity

• The speed of the other vehicle is very fast that it passes by your vehicle in a short time

• Your vehicle passes by the other vehicle

• Your vehicle changes lane

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

• 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 trailer, carrier or other attachment is installed around the rear corner radar

• The bumper around the rear corner radar is covered with objects, such as a bumper sticker, bumper guard, bike rack, etc.

• The bumper around the rear corner radar is impacted, damaged or the radar is out of position

• Your vehicle is installed with a snow chain, spare tire or different size wheel.

• Your vehicle height is low or high due to heavy loads, abnormal tire pressure, installed with tires of different specification, etc.

• The following object is detected:

  • A small motorcycle or bicycle

  • A vehicle such as a flat trailer

  • A big vehicle such as a bus or truck

  • A moving obstacle such as a pedestrian, animal, shopping cart or a baby stroller

  • A vehicle with low height such as a sports car

Braking control may not work, driver's attention is required in the following circumstances:

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

• Driving on a slippery surface due to snow, water puddle, ice, etc.

• The tire pressure is low or a tire is damaged

• The braking system has been modified

• The vehicle makes abrupt lane changes