Hyundai Elantra: Reverse Parking Collision-Avoidance Assist (PCA) / Function malfunction and
limitations
Function malfunction
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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
![](images/function_malfunction_and_limitations-3183/2840/pages.84(4).png)
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.
![](images/function_malfunction_and_limitations-3183/2840/pages.85(4).png)
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.
![](images/function_malfunction_and_limitations-3183/2840/pages.86(4).png)
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
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