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Home > Driving your vehicle > Reverse Parking Collision-Avoidance Assist (PCA) > System malfunction and limitations

System malfunction and limitations

System malfunction

When Reverse Parking Collision-Avoidance Assist or other related systems is not working properly, the 'Check Parking Collision-Avoidance Assist' or 'Check PCA (Parking Collision-Avoidance Assist)' warning message will appear on the cluster, and the system will turn off automatically. We recommend that you have your vehicle inspected by an authorised Kia dealer/service partner.

The rear view camera is used as a detecting sensor to detect pedestrians. If the camera lens is covered with foreign matters, such as snow or rain, it may adversely affect camera performance and Reverse Parking Collision-Avoidance Assist may not operate normally. Always keep the camera lens clean.

The rear ultrasonic sensors are located inside the rear bumper to detect objects in the rear area. If the sensors are covered with foreign matters, such as snow or rain, it may adversely affect sensor performance and Reverse Parking Collision-Avoidance Assist may not operate normally. Always keep the rear bumper clean.

Rear view camera
Rear ultrasonic sensor

The warning message will appear on the cluster if the following situations occur:

  • The rear view camera or ultrasonic sensors are covered with foreign matters, such as snow or rain, etc.

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

If this occurs, Reverse Parking Collision-Avoidance Assist system may turn off or may not operate properly. Check whether the rear view camera and rear ultrasonic sensors are clean.

Limitation of the systems

Reverse Parking Collision-Avoidance Assist may not assist braking or warn the driver even if there are pedestrians or objects under the following circumstances:

  • Any non-factory equipment or accessory is installed

  • Your vehicle is unstable due to an accident or other causes

  • Bumper height or rear ultrasonic sensor installation has been modified

  • Rear view camera or rear ultrasonic sensor(s) is damaged

  • Rear view camera or the rear ultrasonic sensor(s) is stained with foreign matter, such as snow, dirt, etc.

  • Rear view camera is obscured by a light source or by inclement weather, such as heavy rain, fog, snow, etc.

  • The surrounding is very bright or very dark

  • Outside temperature is very high or very low

  • The wind is either strong (above 20 km/h (12 mph)) or blowing perpendicular to the rear bumper

  • Objects generating excessive noise, such as vehicle horns, loud motorcycle engines or truck air brakes, are near your vehicle

  • An ultrasonic sensor with similar frequency is near your vehicle

  • There is ground height difference between the vehicle and the pedestrian

  • The image of the pedestrian in the rear view camera is indistinguishable from the background

  • The pedestrian is near the rear edge of the vehicle

  • The pedestrian is not standing upright

  • The pedestrian is either very short or very tall for the system to detect

  • The pedestrian or cyclist is wearing clothing that easily blends into the background, making it difficult to detect

  • The pedestrian is wearing clothing that does not reflect ultrasonic waves well

  • Size, thickness, height, or shape of the object does not reflect ultrasonic waves well (e.g., pole, bush, kerbs, carts, edge of a wall, etc.)

  • The pedestrian or the object is moving

  • The pedestrian or the object is very close to the rear of the vehicle

  • A wall is behind the pedestrian or the object

  • The object is not located at the rear centre of your vehicle

  • The object is not parallel to the rear bumper

  • The road is slippery or inclined

  • The driver backs up the vehicle immediately after shifting to R (Reverse)

  • The driver accelerates or circles the vehicle

  • Reverse Parking Collision-Avoidance Assist may unnecessarily warn the driver or assist with braking even if there are no pedestrians or objects under the following circumstances:

  • Any non-factory equipment or accessory is installed

  • Your vehicle is unstable due to an accident or other causes

  • Bumper height or rear ultrasonic sensor installation has been modified

  • Your vehicle height is low or high due to heavy loads, abnormal tyre pressure, etc.

  • Rear view camera or the rear ultrasonic sensor(s) is stained with foreign matter, such as snow, dirt, etc.

  • The pattern on the road is mistaken for a pedestrian

  • There is shadow or light reflecting on the ground

  • Pedestrians or objects are around the path of the vehicle

  • Objects generating excessive noise, such as vehicle horns, loud motorcycle engines or truck air brakes, are near your vehicle

  • Your vehicle is backing towards a narrow passage or parking space

  • Your vehicle is backing towards an uneven road surface, such as an unpaved road, gravel, bump, gradient, etc.

  • A trailer or carrier is installed on the rear of your vehicle

  • An ultrasonic sensor with similar frequency is near your vehicle

Warning
  • Always pay extreme caution whilst driving. The driver is responsible for controlling the brake for safe driving.

  • Always pay attention to road and traffic conditions whilst driving, whether or not there is a warning.

  • ALWAYS look around your vehicle to make sure there are no pedestrians or objects before moving the vehicle.

  • The performance of Reverse Parking Collision-Avoidance Assist may vary under certain conditions.

    If vehicle speed is above 4 km/h (2 mph), the system will provide collision avoidance assist only when pedestrians are detected. Always look around and pay attention when backing up your vehicle.

  • Some objects may not be detected by the rear ultrasonic sensors due to the objects distance, size or material, all of which can limit the effectiveness of the sensor.

  • Reverse Parking Collision- Avoidance Assist may not operate properly or may operate unnecessarily depending on the road conditions and the surroundings. Always pay attention to your surroundings whilst driving.

  • Do not solely rely on Reverse Parking Collision-Avoidance Assist. The system might not assist the driver leading to pedestrian injury or vehicle damage.

  • Always keep the rear view camera and rear ultrasonic sensors clean.

  • Do not use any cleanser containing acid or alkaline detergents when cleaning the rear view camera lens.

    Use only a mild soap or neutral detergent, and rinse thoroughly with water.

  • Do not spray the rear view camera or the rear ultrasonic sensors or their surrounding area directly with a high pressure washer. It may cause the rear view camera or the rear ultrasonic sensors to malfunction.

  • Do not apply foreign matters, such as a bumper sticker or a bumper guard, near the rear view camera or rear ultrasonic sensors or apply paint to the bumper.

    Doing so may adversely affect the performance of the system.

  • Never disassemble or apply impact on the rear view camera or the rear ultrasonic sensors components.

  • Do not apply unnecessary force on the rear view camera or the rear ultrasonic sensors. The system may not operate properly if the rear view camera or the rear ultrasonic sensor(s) is forcibly moved out of proper alignment. We recommend that the vehicle be inspected by an authorised

    A braking sound may be heard when the vehicle is stopped to avoid collision.

  • If any other warning sound such as the seat belt warning chime is already generated, Reverse Parking Collision-Avoidance Assist warning may not sound.

  • The system may not work properly if the bumper has been damaged, replaced or repaired.

  • The system may turn off if interfered by strong electromagnetic waves.

  • Playing the vehicle audio system at high volume may prevent passengers from hearing Reverse Parking Collision-Avoidance Assist warning sounds.

Notice

The system can detect a pedestrian or an object when:

  • A pedestrian is standing behind the vehicle.

  • A large obstacle, such as a vehicle, is parked in the rear centre of your vehicle.