
Driver assistance system
7-114
• Highway Driving Assist may
inadvertently operate or turn off
depending on road conditions
(navigation information) and
surroundings.
• Lane Following Assist function may
be temporarily disabled when the
front view camera cannot detect
lanes properly or the hands-off
warning is on.
• You may not hear the warning sound
of Highway Driving Assist if the
surrounding is noisy.
• If the vehicle is driven at high speed
above a certain speed at a curve,
your vehicle may drive to one side or
may depart from the driving lane.
• When you are towing a trailer or
another vehicle, we recommend that
Highway Driving Assist is turned off
due to safety reasons.
• The hands–off warning message
may appear early or late depending
on how the steering wheel is held or
road conditions. Always have your
hands on the steering wheel while
driving.
• For your safety, please read the
owner's manual before using the
Highway Driving Assist.
• Highway Driving Assist will not
operate when the engine is started,
or when the detecting sensors or
navigation is being initialized.Limitations of the function
Highway Driving Assist may not operate
normally, or may not operate under the
following circumstances:
• The map information and the
actual road is different because the
navigation is not updated
• The map information and the actual
road is different because of real-time
GPS data or map information error
• The infotainment system is overloaded
by simultaneously performing
functions such as route search, video
playback, voice recognition, etc.
• GPS signals are blocked in areas such
as a tunnel
• The driver goes off course or the
route to the destination is changed or
canceled by resetting the navigation
• The vehicle enters a service station or
rest area
• Android Auto or Car Play is operating
• The navigation cannot detect the
current vehicle position (ex: elevated
roads including overpass adjacent to
general roads or nearby roads exist in
a parallel way)
• White single dotted lane line or road
edge cannot be detected
• The road is temporarily controlled due
to construction, etc.
• There is no structure, such as a
medium strip, guardrails, etc., on the
road
• There is a changeable lane in the
direction of lane change
For more details on the limitations of
the front view camera, front radar, front
corner radar and rear corner radar, refer
to “Forward Collision-Avoidance Assist
(FCA)” section in chapter 7.

Driver assistance system
7-124
Function malfunction and
limitations
Function malfunction
OCN7070064L
When Rear Cross-Traffic Safety system
is not working properly, the ‘Check
Rear
Cr
oss-Traffic
Sa
fety
s
ystem(s)’
warning message will appear on the
clus
ter, and the system will turn off
automatically, or the system will be
limited. We recommend that the system
be inspected by an authorized HYUNDAI
dealer.
OCN7070040L
When the outside rearview mirror
warning light is not working properly, the
‘Check
side vie
w
mirr
or
w
arning
ligh
t’
warning message will appear on the
clus
ter. We recommend that the system
be inspected by an authorized HYUNDAI
dealer.
Function disabled
OCN7070065L
When the rear bumper around the rear
corner radar or sensor is covered with
foreign material, such as snow or rain,
or installing a trailer or carrier, it can
reduce the detecting performance and
temporarily limit or disable Rear Cross-
Traffic Safety system.
If this occurs, the ‘Rear Cross-Traffic
Safety
s
ystem
disabled. Radar block
ed’
warning message will appear on the
clus
ter.
The system will operate normally when
such foreign material or trailer, etc. is
removed.
If the system does not operate normally
after it is removed, we recommend
that the system be inspected by an
authorized HYUNDAI dealer.

07
7-125
WARNING
• Even though the warning message
does not appear on the cluster, Rear
Cross-Traffic Safety system may not
operate properly.
• Rear Cross-Traffic Safety system may
not operate properly in an area (for
example: open terrain), where any
substance are not detected after
turning ON the engine.
CAUTION
Turn off Rear Cross-Traffic Safety
system to install a trailer, carrier, etc.,
or remove the trailer, carrier, etc. to use
Rear Cross-Traffic Safety system.
Limitations of the function
Rear Cross-Traffic Safety system may
not operate normally, or the system
may operate unexpectedly under the
following circumstances:
• Departing from where trees or grass
are overgrown
• Departing from where roads are wet
• Speed of the approaching vehicle is
fast or slow
For more details on the limitations of
the rear corner radar, refer to “Blind-
Spot Collision-Avoidance Warning
(BCW)” section in chapter 7.
WARNING
• Driving near a vehicle or structure
OHY059017[A] : Structure
Rear Cross-Traffic Safety system
may be limited when driving near
a vehicle or structure, and may not
detect the vehicle approaching
from the left or right. If this occurs,
the system may not warn the driver
when necessary.
Always check your surroundings
while backing up.

Driver assistance system
7-134
Function malfunction and
limitations
Function malfunction
OCN7070064L
When Rear Cross-Traffic Safety system
is not working properly, the ‘Check
Rear
Cr
oss-Traffic
Sa
fety
s
ystem’
warning message will appear on the
clus
ter, and the system will turn off
automatically or the system will be
limited. We recommend that the system
be inspected by an authorized HYUNDAI
dealer.
OCN7070040L
When the outside rearview mirror
warning light is not working properly, the
‘Check
side vie
w
mirr
or
w
arning
ligh
t’
warning message will appear on the
clus
ter. We recommend that the system
be inspected by an authorized HYUNDAI
dealer.
Function disabled
OCN7070065L
When the rear bumper around the rear-
side radar or sensor is covered with
foreign material, such as snow or rain,
or installing a trailer or carrier, it can
reduce the detecting performance and
temporarily limit or disable Rear Cross-
Traffic Safety system.
If this occurs, the ‘Rear Cross-Traffic
Safety
s
ystem
disabled. Radar block
ed’
warning message will appear on the
clus
ter.
The system will operate normally when
such foreign material or trailer, etc. is
removed.
If the system does not operate normally
after it is removed, we recommend
that the system be inspected by an
authorized HYUNDAI dealer.

07
7-135
WARNING
• Even though the warning message
does not appear on the cluster, Rear
Cross-Traffic Safety system may not
operate properly.
• Rear Cross-Traffic Safety system may
not operate properly in an area (for
example: open terrain), where any
substance are not detected after
turning ON the engine.
CAUTION
Turn off Rear Cross-Traffic Safety
system to install a trailer, carrier, etc.,
or remove the trailer, carrier, etc. to use
Rear Cross-Traffic Safety system.
Limitations of the function
Rear Cross-Traffic Safety system may
not operate normally, or the system
may operate unexpectedly under the
following circumstances:
• Departing from where trees or grass
are overgrown
• Departing from where roads are wet
• Speed of the approaching vehicle is
fast or slow
Braking
con
trol
ma
y
no
t
w
ork,
driv
er’s
att
ention 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 brake is reworked
• Remote Smart Parking Assist is
operating (if equipped)
CAUTION
For more details on the limitations of
the rear corner radar, refer to “Blind-
Spot Collision-Avoidance Assist (BCA)”
section in chapter 7.
WARNING
• Driving near a vehicle or structure
OHY059017[A] : Structure
Rear Cross-Traffic Safety system
may be limited when driving near
a vehicle or structure, and may not
detect the vehicle approaching from
the left or right. If this occurs, the
system may not warn the driver or
control the brakes when necessary.
Always check your surroundings
while backing up.
![HYUNDAI ELANTRA SEL 2021 Owners Manual 07
7-137
• Pulling into the parking space where
there is a structure
OHY059022[A] : Structure, [B] :Wall
Rear Cross-Traffic Safety system
may detect vehicles passing by
in front of you when park HYUNDAI ELANTRA SEL 2021 Owners Manual 07
7-137
• Pulling into the parking space where
there is a structure
OHY059022[A] : Structure, [B] :Wall
Rear Cross-Traffic Safety system
may detect vehicles passing by
in front of you when park](/manual-img/35/56089/w960_56089-449.png)
07
7-137
• Pulling into the parking space where
there is a structure
OHY059022[A] : Structure, [B] :Wall
Rear Cross-Traffic Safety system
may detect vehicles passing by
in front of you when parking in
reverse into a parking space with a
wall or structure in the rear or side
area. If this occurs, the system may
unnecessarily warn the driver and
control the brake.
Always check your surroundings
while backing up. •
When the vehicle is parked rearward
OHY059020
Rear Cross-Traffic Safety system may
detect vehicles passing by behind
you when parking in reverse into
a parking space. If this occurs, the
system may unnecessarily warn the
driver and control the brake.
Always check your surroundings
while backing up.
WARNING
• When you are towing a trailer or
another vehicle, we recommend that
Rear Cross-Traffic Safety system is
turned off due to safety reasons.
• Rear Cross-Traffic Safety system may
not operate normally if interfered by
strong electromagnetic waves.
• Rear Cross-Traffic Safety system may
not operate for 15 seconds after the
vehicle is started, or the rear corner
radars are initialized.

07
7-149
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

Maintenance
9-12
Severe driving conditions
A. Repeatedly driving short distance of less than 5 miles (8 km) in normal temperature
or less than 10 miles (16 km) in freezing temperature
B.
Extensiv
e engine idling or low speed driving for long distances
C.
Driving on rough, dus
ty, muddy, unpaved, graveled or saltspread roads
D.
Driving in areas using salt or o
ther corrosive materials or in very cold weather
E.
Driving in the condition of in
flowing sand or dust into engine
F.
Driving in heavy tr
affic area
G.
Driving on uphill, downhill, or moun
tain roads
H.
To
wing a trailer
I.
Driving for pa
trol car, taxi, commercial car or vehicle towing
J.
Driving ov
er 106 mph (170 km/h)
K.
Fr
equently driving in stop-and-go conditions
L.
Engine oil usage which is no
t recommended (mineral type, lower grade spec, etc.)