Hyundai Elantra (CN7): Reverse Parking Collision-Avoidance Assist (PCA) / Function malfunction and limitations

Function malfunction

When Reverse Parking Collision- Avoidance Assist or other related function are not working properly, the ‘Check Parking Collision-Avoidance Assist system’ warning message will appear on the cluster, and the system will turn off automatically. We recommend that the function be inspected by an authorized HYUNDAI dealer.

Function disabled

The rear view camera is used as a detecting sensor to detect pedestrians. If the camera lens is covered with foreign material, 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 material, 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.

The ‘Rear camera error or blockage’ or ‘Parking sensor error or blockage’ warning message will appear on the cluster if the following situations occur:

-- The rear view camera is covered with foreign material, 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 may turn off or may not operate properly. Check whether the rear view camera and rear ultrasonic sensors are clean.

Limitations of the function

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 material, 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 12 mph (20 km/h)) 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, curbs, 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 center 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 tire pressure, etc.
• Rear view camera or the rear ultrasonic sensor(s) is stained with foreign material, 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