brake sensor HYUNDAI SANTA FE HYBRID 2021 Owners Manual

03
3-65
OTM030018
Just before impact, drivers often brake
heavily. Such heavy braking lowers the
front portion of the vehicle causing it
to “ride” under a vehicle with a higher
ground clearance. Air bags may not
inflate in this “underride” situation
because deceleration forces that are
detected by sensors may be significantly
reduced by such “underride” collisions.
OTM030041
Front air bags may not inflate in
rollover accidents because front air bag
deployment would not provide additional
occupant protection.
OTMH030004
Air bags may not inflate if the vehicle
collides with objects such as utility poles
or trees, where the point of impact is
concentrated and the collision energy is
absorbed by the vehicle structure.

Convenient features
5-78
LIGHTING
Exterior lights
Lighting control
To operate the lights, turn the knob at
the end of the control lever to one of the
following positions:
OAD045402
1. OFF position
2. AUTO headlamp position
3. Position lamp position
4. Headlamp positionDaytime Running Light (DRL)
The Daytime Running Lights (DRL) can
make it easier for others to see the front
of your vehicle during the day, especially
after dawn and before sunset.
The DRL system will turn the dedicated
lamp OFF when :
• The headlamps are ON.
• The parking brake is applied.
• The vehicle is turned off.
OTM050098
AUTO headlamp position
The position lamp and headlamp will
be turned ON or OFF automatically
depending on the amount of daylight as
measured by the ambient light sensor (1)
at the upper end of the windshield glass.
Even with the AUTO headlamp feature
in operation, it is recommended to
manually turn ON the headlamps when
driving at night or in a fog, driving in the
rain, or when you enter dark areas, such
as tunnels and parking facilities.

Driver assistance system
7-14
WARNING
• Driving on a curve
OADAS014
OADAS016OADAS018
Forward Collision-Avoidance
Assist may not detect the vehicle,
pedestrian or cyclist in front of you
on curved roads adversely affecting
the performance of the sensors. This
may result in no warning or braking
assist when necessary.
When driving on a curve, you must
maintain a safe braking distance,
and if necessary, steer the vehicle
and depress the brake pedal to
reduce your driving speed in order to
maintain a safe distance.
OADAS015
OADAS017OADAS019
Forward Collision-Avoidance Assist
may detect a vehicle, pedestrian or
cyclist in the next lane or outside the
lane when driving on a curved road.
If this occurs, the system may
unnecessarily warn the driver and
control the brake. Always check the
traffic conditions around the vehicle.

07
7-15
• Driving on a slope
OADAS012
OADAS010OADAS011
Forward Collision-Avoidance
Assist may not detect the vehicle,
pedestrian or cyclist in front of you
while driving uphill or downhill
adversely affecting the performance
of the sensors.
This may result in unnecessary
warning or braking assist, or no
warning or braking assist when
necessary.
Also, vehicle speed may rapidly
decrease when a vehicle, pedestrian
or cyclist ahead is suddenly
detected.
Always have your eyes on the road
while driving uphill or downhill and
if necessary, steer your vehicle and
depress the brake pedal to reduce
your driving speed in order to
maintain a safe distance. •
Changing lanes
OADAS030[A] : Your vehicle,
[B] : Lane changing vehicle
When a vehicle moves into your lane
from an adjacent lane, it cannot
be detected by the sensor until it
is in the sensor's detection range.
Forward Collision-Avoidance Assist
may not immediately detect the
vehicle when the vehicle changes
lanes abruptly. In this case, you must
maintain a safe braking distance,
and if necessary, steer your vehicle
and depress the brake pedal to
reduce your driving speed in order to
maintain a safe distance.

Driver assistance system
7-26
OJX1079028
When you are driving forward out of
a parking space, if the system judges
that there is a collision risk with an
approaching vehicle in the blind spot,
the system will help avoid a collision by
applying the brake.
Information
In the following text, Blind-Spot Collision-
Avoidance Assist will be referred as Blind-
Spot Safety system.
Detecting sensor
OTMH050004
OTM070002[1] : Front view camera,
[2] : Rear corner radar
Refer to the picture above for the
detailed location of the detecting
sensors.
CAUTION
Take the following precautions to
maintain optimal performance of the
detecting sensor:
• Never disassemble the rear corner
radar or radar assembly, or apply any
impact on it.
• If there is impact on the rear
corner radar or near the radar,
even though the warning message
does not appear on the cluster,
Blind-Spot Safety system may not
operate properly. We recommend
that the system be inspected by an
authorized HYUNDAI dealer.

07
7-67
• Changing lanes
OADAS030 [A] : Your vehicle, [B] : Lane changing vehicle
When a vehicle moves into your lane
from an adjacent lane, it cannot be
detected by the sensor until it is in the
sensor's detection range. Smart Cruise
Control may not immediately detect
the vehicle when the vehicle changes
lanes abruptly. In this case, you must
maintain a safe braking distance, and
if necessary, depress the brake pedal
to reduce your driving speed in order
to maintain a safe distance. •
Detecting vehicle
OJX1079181
In the following cases, some vehicles
in your lane cannot be detected by the
sensor:
-Vehicles offset to one side
-Slow-moving vehicles or sudden-
decelerating vehicles
-Oncoming vehicles
-Stopped vehicles
-Vehicles with small rear profile, such
as trailers
-Narrow vehicles, such as
motorcycles or bicycles
-Special vehicles
-Animals and pedestrians
Adjust your vehicle speed by
depressing the brake pedal according
to the road and driving conditions
ahead.

Driver assistance system
7-68
OTMH070002
In the following cases, the vehicle
in front cannot be detected by the
sensor:
-Vehicles with higher ground
clearance or vehicles carrying loads
that stick out of the back of the
vehicle
-Vehicles that has the front lifted due
to heavy loads
-You are steering your vehicle
-Driving on narrow or sharply curved
roads
Adjust your vehicle speed by
depressing the brake pedal according
to the road and driving conditions
ahead.
OTM058129
• When a vehicle ahead disappears
at an intersection, your vehicle may
accelerate.
Always pay attention to road and
driving conditions while driving.
OTM058119
• When a vehicle in front of you merges
out of the lane, Smart Cruise Control
may not immediately detect the new
vehicle that is now in front of you.
Always pay attention to road and
driving conditions while driving.
OTM058124
• Always look out for pedestrians when
your vehicle is maintaining a distance
with the vehicle ahead.

07
7-117
System operation
Operating conditions
If ‘Rear active assist’ or ‘Rear warning only’ is set from the Settings menu, Reverse Parking Collision-Avoidance
Assist will be in the ready status when
the following conditions are satisfied:
-The liftgate is closed
-The gear is shifted to R (Reverse)
-Vehicle speed is below 6 mph (10
km/h)
-System components such as the rear
view camera and the rear ultrasonic
sensors are in normal conditions
When Reverse Parking Collision-
Avoidance Assist activates, a line
appears behind the vehicle image in the
instrument cluster.
Reverse Parking Collision-Avoidance
Assist operates only once after the gear
is shifted to R (Reverse). To reactivate
Reverse Parking Collision-Avoidance
Assist, shift the gear from another gear
to R (Reverse).
OTM070174
Rear Active Assist
• If the system detects a risk of collision
with a pedestrian or an object, the
system will warn the driver with an
audible warning and warning message
on the cluster. When Rear View
Monitor is operating, a warning will
appear on the infotainment system
screen.
• If the system detects an imminent
collision with a pedestrian or an
object behind the vehicle, the system
will assist you with braking. The driver
needs to pay attention as the brake
assist will end within 2 seconds. The
driver must immediately depress
the brake pedal and check vehicle
surroundings.
• Brake control will end when:
-The gear is shifted to P (Park) or D
(Drive).
-The driver depresses the brake
pedal with sufficient power
-Braking assist has last for
approximately 2 seconds
• The warning will turn off when:
-The driver shifts the gear to P (Park),
N (Neutral), or D (Drive)
• The brake control may not operate
properly depending on the status of
ESC (Electronic Stability Control).
There will only be a warning when:
-The ESC (Electronic Stability
Control) warning light is on
-ESC (Electronic Stability Control) is
engaged in a different function

07
7-119
„„Rear view camera„„Rear ultrasonic sensor
OTM070219LOTM070176L
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 system
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

Driver assistance system
7-120
• 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