2020 Hyundai Sonata Temperature sensor

While Driving6-66
When external condition is intervened
• The brightness outside changes suddenly such as when entering or
exiting a tunnel, or when passing
under a bridge.
• The brightness outside is too low such as when the headlamps are not on at
night or the vehicle is going through
a tunnel.
• There is a boundary structure in the roadway such as a concrete barrier,
guardrail and reflector post that is
inadvertently being detected by the
camera.
• When light coming from a street light or an oncoming vehicle is reflected on
a wet road surface such as a puddle in
the road.
• The field of view in front is obstructed by sun glare.
• There is not enough distance between you and the vehicle in front to be
able to detect the lane marker or the
vehicle ahead is driving on the lane
marke.
• Driving on a steep grade, over a hill, or when driving on a curved road.
• The adverse road conditions cause excessive vehicle vibrations while
driving.
• The surrounding of the inside rear view mirror temperature is high due to
direct sunlight, etc.
• Road surface is not even. When front visibility is poor
• The windshield or the camera lens is
blocked with dirt or debris.
• The windshield glass is fogged up; a clear view of the road is obstructed.
• Placing objects on the dashboard, etc.
• The sensor cannot detect the lane marker because of fog, heavy rain or
snow.

06
6-75
Type AType AType BType B
OTM058087LOTM058087LODN8059289LODN8059289L
Check Blind-Spot Collision-Avoidance
Assist (BCA) system
If there is a problem with BCA system,
a w
arning message will appear. The
system will turn off automatically. BCW
will still operate even if BCA system turns
off due to malfunction. Have the vehicle
inspected by an authorized HYUNDAI
dealer.
Limitations of the System
The driver must be cautious in the below
situations, because the system may not
detect other vehicles or objects in certain
circumstances.
• The system may not work around 15 seconds after starting the vehicle or
the initialization or rebooting of the
front view camera.
• When a trailer or carrier is installed.
• The vehicle drives in inclement weather such as heavy rain or snow.
• The sensors are polluted with rain, snow, mud, etc.
• The rear bumper where the sensors are located is covered with a foreign
object such as a bumper sticker, a
bumper guard, a bike rack, etc.
• The rear bumper is damaged, or the sensor is out of the original default
position.
• The vehicle height gets lower or higher due to heavy loading in a trunk,
abnormal tire pressure, etc.
• When the temperature of the rear bumper is high.
• When the sensors are blocked by other vehicles, walls or parking-lot
pillars.
• The vehicle drives on a curved road.
• The vehicle drives through a tollgate.
• The road pavement (or the peripheral ground) abnormally contains metallic
components (i.e. possibly due to
subway construction).
• There is a fixed object near the vehicle, such as a guardrail.

While Driving6-76
• While going down or up a steep road where the height of the lane is
different.
• Driving on a narrow road where trees or grass or overgrown.
• Driving in rural areas where the sensor does not detect another vehicle or
structure for an extended period of
time.
• Driving on a wet road.
• Driving on a road where the guardrail or wall is in double structure.
• A big vehicle is near such as a bus or truck.
• When the other vehicle approaches very close.
• When the other vehicle passes at a very fast speed.
• While changing lanes.
• If the vehicle has started at the same time as the vehicle next to you and
has accelerated.
• When the vehicle in the next lane moves two lanes away from you OR
when the vehicle two lanes away
moves to the next lane from you.
• A motorcycle or bicycle is near.
• A flat trailer is near.
• If there are small objects in the detecting area such as a shopping
cart or a baby stroller. • If there is a low height vehicle such as
a sports car.
• The brake pedal is depressed.
• ESC (Electronic Stability Control) is activated.
• ESC (Electronic Stability Control) malfunctions.
• The tire pressure is low or a tire is damaged.
• The brake is reworked.
• The vehicle abruptly changes driving direction.
• The vehicle makes sharp lane changes.
• The vehicle sharply stops.
• Temperature is extremely low around the vehicle.
• The vehicle severely vibrates while driving over a bumpy road, uneven/
bumpy road, or concrete patch.
• The vehicle drives on a slippery surface due to snow, water puddle,
or ice.
• Lane Keeping Assist does not operate normally. (if equipped)
• For more information, refer to “Lane Keeping Assist (LKA)” in this chapter.

While Driving6-114
• The shadow is on the lane marker by a median strip, trees, guardrail, noise
barriers, etc.
• The lane markers are complicated or a structure substitutes for the lines such
as a construction area.
• There are crosswalk signs or other symbols on the road.
• The lane marker in a tunnel is stained with oil, etc.
• The lane suddenly disappears such as at the intersection.
• Driving the shared lane usage (bicycle lane, pedestrians lane, etc.)
When external condition is intervened
• The brightness outside changes suddenly such as when entering or
exiting a tunnel, or when passing
under a bridge.
• The brightness outside is too low such as when the headlamps are not on at
night or the vehicle is going through
a tunnel.
• There is a boundary structure in the roadway such as a concrete barrier,
guardrail and reflector post that is
inadvertently being detected by the
camera.
• When light coming from a street light or an oncoming vehicle is reflected on
a wet road surface such as a puddle in
the road.
• The field of view in front is obstructed by sun glare. • There is not enough distance between
you and the vehicle in front to be
able to detect the lane marker or the
vehicle ahead is driving on the lane
marker.
• Driving on a steep grade, over a hill, or when driving on a curved road.
• The adverse road conditions cause excessive vehicle vibrations while
driving.
• The surrounding of the inside rear view mirror temperature is high due to
direct sunlight, etc.
• The sensor recognition changes suddenly when passing over a speed
bump or driving on a steep up/down
or right/left grade
When front visibility is poor
• The windshield or the camera lens is blocked with dirt or debris.
• The windshield glass is fogged up; a clear view of the road is obstructed.
• Placing objects on the dashboard, etc.
• The sensor cannot detect the lane because of fog, heavy rain or snow.

06
6-129
• The vehicle height gets lower or higher due to heavy loading in a trunk,
abnormal tire pressure, etc.
• When the temperature of the rear bumper is high.
• When the sensors are blocked by other vehicles, walls or parking-lot
pillars.
• The vehicle drives on a curved road.
• The road pavement (or the peripheral ground) abnormally contains metallic
components (i.e. possibly due to
subway construction).
• There is a fixed object near the vehicle, such as a guardrail.
• While going down or up a steep road where the height of the lane is
different.
• Driving on a narrow road where trees or grass or overgrown.
• Driving in rural areas where the sensor does not detect another vehicle for an
extended period of time.
• Driving on a wet road.
• Driving on a road where the guardrail or wall is in double structure.
• A big vehicle is near such as a bus or truck.
• When the other vehicle approaches very close.
• When the other vehicle passes at a very fast speed.
• While changing lanes. • If the vehicle has started at the same
time as the vehicle next to you and
has accelerated.
• When the vehicle in the next lane moves two lanes away from you or
when the vehicle two lanes away
moves to the next lane from you.
• A motorcycle or bicycle is near.
• A flat trailer is near.
• If there are small objects in the detecting area such as a shopping
cart or a baby stroller.
• If there is a low height vehicle such as a sports car.
• The brake pedal is depressed.
• ESC (Electronic Stability Control) is activated.
• ESC (Electronic Stability Control) malfunctions.
• The tire pressure is low or a tire is damaged.
• The brake is reworked.
• The vehicle sharply stops.
• Temperature is extremely low around the vehicle.
• The vehicle severely vibrates while driving over a bumpy road, uneven/
bumpy road, or concrete patch.
• The vehicle drives on a slippery surface due to snow, water puddle,
or ice.
• If the vehicle moves backward after the vehicle is parked with a diagonal
line

07
7-9
Low Tire Pressure Telltale
Low Tire Pressure LCD Display
with Position Indicator
ODN8049019LODN8049019L
When the tire pressure monitoring
system warning indicators are
illuminated and the warning message
is displayed on the cluster LCD
display, one or more of your tires is
significantly under-inflated. The LCD
position indicator will indicate which
tire is significantly under-inflated by
illuminating the corresponding position
light.
If any of your tire pressures are indicated
as being low, immediately reduce
your speed, avoid hard cornering, and
anticipate increased stopping distances.
You should stop and check your tires
as soon as possible. Inflate the tires to
the proper pressure as indicated on the
vehicle’s placard or tire inflation pressure
label located on the driver’s side center
pillar outer panel.
If you cannot reach a service station or
if the tire cannot hold the newly added
air, replace the low pressure tire with the
spare tire. (if equipped)
The Low Tire Pressure LCD position
indicator will remain on and the TPMS
Malfunction Indicator may blink for one
minute and then remain illuminated until
you have the low pressure tire repaired
and replaced on the vehicle.
NOTICE
The spare tire is not equipped with a
tire pressure sensor.
CAUTION
In winter or cold weather, the Low Tire
Pressure Telltale may be illuminated if
the tire pressure was adjusted to the
recommended tire inflation pressure
in warm weather. It does not mean
your TPMS is malfunctioning because
the decreased temperature leads to a
proportional lowering of tire pressure.
When you drive your vehicle from a
warm area to a cold area or from a cold
area to a warm area, or the outside
temperature is greatly higher or lower,
you should check the tire inflation
pressure and adjust the tires to the
recommended tire inflation pressure.
WARNING
Low pressure damage
Significantly low tire pressure makes
the vehicle unstable and can contribute
to loss of vehicle control and increased
braking distances.
Continued driving on low pressure tires
can cause the tires to overheat and fail.

IndexI-2
A
Air bag warning labels ........................................................................\
................. 3-57
Air bags ........................................................................\
........................................ 3-37 Driver’s air bag ........................................................................\
....................... 3-39
Passenger’s front air bag ........................................................................\
......... 3-39
Side air bags ........................................................................\
............................ 3-40
Curtain air bags ........................................................................\
....................... 3-41
How does the air bags system operate?...................................\
........................ 3-42
SRS components and functions ....................................................................... 3-42
SRS warning light ........................................................................\
................... 3-43
What to expect after an air bag inflates ........................................................... 3-46
Occupant Classification System (OCS) .......................................................... 3-47
Why didn’t my air bag go off in a collision .................................................... 3-52
Air bag collision sensors ........................................................................\
......... 3-53
Air bag inflation conditions ........................................................................\
.... 3-54
Air bag non-inflation conditions ..................................................................... 3-54
SRS Care ........................................................................\
................................. 3-56
Additional safety precautions ........................................................................\
.. 3-57
Air bag warning labels ........................................................................\
............ 3-57
Air cleaner ........................................................................\
................................... 8-26
Air cleaner filter replacement ........................................................................\
...... 8-26
Air conditioning system specification ................................................................. 2-10
Antenna ................................................................\
.............................................. 5-152
Anti-lock Brake System (ABS) ........................................................................\
... 6-27
Appearance care........................................................................\
........................... 8-61 Exterior care ........................................................................\
............................ 8-61
Interior care ........................................................................\
............................. 8-65
Armrest ................................................................\
................................................ 3-11
Audio / Video / Navigation system .................................................................... 5-154
Auto defogging system ........................................................................\
.............. 5-141
AUTO headlamp position ........................................................................\
............ 5-74
Auto LOCK - Enable on shift ........................................................................\
...... 5-34
Auto LOCK - Enable on speed ........................................................................\
.... 5-34
Auto UNLOCK - Enable on shift ........................................................................\
5-34
Auto UNLOCK -Air bag deployment ................................................................. 5-34
Automatic climate control system ..................................................................... 5-127
Automatic heating and air conditioning ........................................................ 5-128
Manual temperature control mode ................................................................ 5-129