2011 Hyundai Sonata Hybrid heater

Safety features of your vehicle
10 3
Seatback pocket
The seatback pocket is provided on the
back of the front passenger’s and driver’s
seatbacks.
CAUTION
When cleaning the seats, do not
use an organic solvent such as
thinner, benzene, alcohol and
gasoline. Doing so may damage
the surface of the heater or seats.
To prevent overheating the seat
warmer, do not place blankets,
cushions or seat covers on the
seats while the seat warmer is in
operation.
Do not place heavy or sharp
objects on seats equipped with
seat warmers. Damage to the seat
warming components could occur.WARNING- Seat warmer
burns
Passengers should use extreme
caution when using seat warmers
due to the possibility of excess
heating or burns. The occupants
must be able to feel if the seat is
becoming too warm and to turn the
seat warmer off. In particular, the
driver must exercise extreme care
for the following types of passen-
gers:
1. Infants, children, elderly or dis-
abled persons, or hospital outpa-
tients
2. Persons with sensitive skin or
those that burn easily
3. Fatigued individuals
4. Intoxicated individuals
5. Individuals taking medication
that can cause drowsiness or
sleepiness (sleeping pills, cold
tablets, etc.)
WARNING- Seatback
pockets
Do not put heavy or sharp objects
in the seatback pockets. In an acci-
dent they could come loose from
the pocket and injure vehicle occu-
pants.
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313
Safety features of your vehicle
Armrest
The armrest is located in the center of
the rear seat. Pull the armrest down and
you will find the cup holders.
WARNING- Seat warmer
burns
Passengers should use extreme
caution when using seat warmers
due to the possibility of excess
heating or burns. In particular, the
driver must exercise extreme care
for the following types of passen-
gers:
1. Infants, children, elderly or hand-
icapped persons, or hospital out-
patients
2. Persons with sensitive skin or
those that burn easily
3. Fatigued individuals
4. Intoxicated individuals
5. Individuals taking medication
that can cause drowsiness or
sleepiness (sleeping pills, cold
tablets, etc.)
CAUTION
When cleaning the seats, do not
use an organic solvent such as
thinner, benzene, alcohol or gaso-
line. Doing so may damage the
surface of the heater or seats.
To prevent overheating the seat
warmer, do not place blankets,
cushions or seat covers on the
seats while the seat warmer is in
operation.
Do not place heavy or sharp
objects on seats equipped with
seat warmers. Damage to the seat
warming components could occur.
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347
Safety features of your vehicle
(Continued)
Do not place an electronic device
such as a laptop computer on the
front passenger seat. Its elec-
tronic field may cause the OCS to
switch to the "on" condition and
thus allow the passenger air bag
to deploy needlessly in a colli-
sion, increasing your repair
costs.
A smaller-stature adult in the
front passenger’s seat who is not
seated correctly (for example:
seat excessively reclined, leaning
on the door or center console, or
hips shifted forward in the seat)
can cause a condition where the
occupant classification system
senses less weight than if the
occupant were seated properly
(sitting upright with the seatback
in an upright position, centered
on the seat cushion with their
seat belt on, legs comfortably
extended and their feet on the
floor).
This condition can result in an
adult potentially being misclassi-
fied as a child and illumination of
the PASS AIR BAG "OFF" indica-
tor.(Continued)
Accident statistics show that
children are safer if they are
restrained in the rear, as opposed
to the front seat. It is recom-
mended that child restraints be
secured in a rear seat, including
an infant riding in a rear-facing
infant seat, a child riding in a for-
ward-facing child seat and an
older child riding in a booster
seat.
Air bags can only be used once –
have an authorized HYUNDAI
dealer replace the air bag imme-
diately after deployment.
The occupant classification sys-
tem may not work properly if
water, coffee or any other liquid
including rain gets on the seat.
Keep the front seat dry at all
times.
(Continued)(Continued)
If the PASS AIR BAG "OFF" indi-
cator is illuminated when the
front passenger's seat is occu-
pied by an adult and he/she sits
properly (sitting upright with the
seatback in an upright position,
centered on the seat cushion
with their seat belt on, legs com-
fortably extended and their feet
on the floor), have that person sit
in the rear seat.
Do not modify or replace the front
passenger seat. Don't place any-
thing on or attach anything such
as a blanket or seat heater to the
front passenger seat. This can
adversely affect the occupant
classification system.
Do not sit on sharp objects such
as tools when occupying the
front passenger seat. This can
adversely affect the occupant
classification system.
Do not use accessory seat cov-
ers on the front seats.
(Continued)

Features of your vehicle
86 4
✽
✽
NOTICE
Prolonged operation of the heater in the
recirculated air position (without air
conditioning selected) may cause fog-
ging of the windshield and side windows
and the air within the passenger com-
partment may become stale.
In addition, prolonged use of the air con-
ditioning with the recirculated air posi-
tion selected will result in excessively dry
air in the passenger compartment.
Fan speed control
The fan speed can be set to the desired
speed by pushing the fan speed control
button.
The higher the fan speed is, the more air
is delivered.
WARNING
Continued use of the climate con-
trol system operation in the recir-
culated air position may allow
humidity to increase inside the
vehicle which may fog the glass
and obscure visibility.
Do not sleep in a vehicle with the
air conditioning or heating system
on. It may cause serious harm or
death due to a drop in the oxygen
level and/or body temperature.
Continued use of the climate con-
trol system operation in the recir-
culated air position can cause
drowsiness or sleepiness, and loss
of vehicle control. Set the air intake
control to the outside (fresh) air
position as much as possible while
driving.
OYF049164

Features of your vehicle
90 4
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle from the outside through the heating
and air conditioning system. If dust or
other pollutants accumulate in the filter
over a period of time, the air flow from the
air vents may decrease, resulting in
moisture accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized HYUNDAI
dealer.
✽ ✽
NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly
decreases, the system should be
checked at an authorized HYUNDAI
dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized HYUNDAI dealer.
✽ ✽
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. OMG075033
Outside air
Recirculated
air
Climate control
air filterBlower
Evaporator
coreHeater core
WARNING
The air conditioning system should
be serviced by an authorized
HYUNDAI dealer. Improper service
may cause serious injury to the
person performing the service.

Features of your vehicle
96 4
Adjusting the driver and passenger side
temperature equally
1. Press the DUAL button again to deac-
tivate DUAL mode. The passenger
side temperature will be set to the
same temperature as the driver side
temperature.
2. Turn the left temperature control knob.
The driver and passenger side tem-
perature will be adjusted equally.
Air intake control
This is used to select the outside (fresh)
air position or recirculated air position.
To change the air intake control position,
push the control button.Recirculated air position
With the recirculated air
position selected, air from
the passenger compart-
ment will be drawn through
the heating system and
heated or cooled according
to the function selected.
Outside (fresh) air position
With the outside (fresh) air
position selected, air enters
the vehicle from outside and
is heated or cooled accord-
ing to the function selected.
✽ ✽
NOTICE
Prolonged operation of the heater in the
recirculated air position (without air
conditioning selected) may cause fog-
ging of the windshield and side windows
and the air within the passenger com-
partment may become stale.
In addition, prolonged use of the air con-
ditioning with the recirculated air posi-
tion selected will result in excessively dry
air in the passenger compartment.
OYF049125

4101
Features of your vehicle
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle from the outside through the heating
and air conditioning system. If dust or
other pollutants accumulate in the filter
over a period of time, the air flow from the
air vents may decrease, resulting in
moisture accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized HYUNDAI
dealer.
✽ ✽
NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly
decreases, the system should be
checked at an authorized HYUNDAI
dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized HYUNDAI dealer.
✽ ✽
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. OMG075033
Outside air
Recirculated
air
Climate control
air filterBlower
Evaporator
coreHeater core
WARNING
The air conditioning system should
be serviced by an authorized
HYUNDAI dealer. Improper service
may cause serious injury to the
person performing the service.

Features of your vehicle
102 4
WINDSHIELD DEFROSTING AND DEFOGGING
. For maximum defrosting, set the temper-
ature control to the extreme right/hot
position and the fan speed control to the
highest speed.
If warm air to the floor is desired while
defrosting or defogging, set the mode to
the floor-defrost position.
Before driving, clear all snow and ice from
the windshield, rear window, outside rear
view mirrors, and all side windows.
Clear all snow and ice from the hood and
air inlet in the cowl grill to improve heater
and defroster efficiency and to reduce
the probability of fogging up the inside of
the windshield.
Automatic climate control system
To defog inside windshield
1. Select desired fan speed.
2. Select desired temperature.
3. Press the defrost button ( ).
4. The outside (fresh) air position will be
selected automatically.
WARNING- Windshield
heating
Do not use the or position
during cooling operation in
extremely humid weather. The dif-
ference between the temperature of
the outside air and that of the wind-
shield could cause the outer sur-
face of the windshield to fog up,
causing loss of visibility. In this
case, set the mode selection knob
or button to the position and
fan speed control knob or button to
a lower speed.
OYFH041250A
OYFH041252N
■Type A
■Type B