cooling KIA OPTIMA 2020 Owners Manual

H8 Always keep the charging connec-
tor and charging plug in clean and
dry condition. Be sure to keep the
charging cable in a condition where
there is no water or moisture.
Make sure to use the designated charger for charging the vehicle.
Using any other charger may
cause failure.
Before charging the battery, turn the vehicle OFF.
Be careful not to drop the charging connector. The charging connector
can be damaged.
AC Charge
You can charge your vehicle by plug-
ging into a public charger at a charg-
ing station.
CHARGING THE PLUG-IN HYBRID VEHICLE (CONT.)
WARNING - Charging
cable
• Immediately stop charging when you discover abnormal
symptoms (smell, smoke).
Replace the charging cable if the cable coating is damaged
to prevent electrical shock.
When connecting or removing the charging cable, make sure
to hold the charging connec-
tor handle.
If you pull the cable itself
(without using the handle), the
internal wires may disconnect
or get damaged. This may lead
to electric shock or fire.
WARNING - Cooling fan
Do not touch the cooling fan
while vehicle is charging. When
the vehicle is switched OFF
while charging, the cooling fan
inside the motor compartment
may automatically operate.
OJFHPQ016021L
OAEEQ016028
■ AC Charger
■ AC Charger cable

317
Safety features of your vehicle
Armrest
To use the armrest, pull it forward
from the seatback.
Folding the rear seat (if equipped)
The rear seatbacks may be folded to
facilitate carrying long items or to
increase the luggage capacity of the
vehicle.
OJF035026
WARNING - Folded
Seatback
The purpose of the fold-down
rear seatbacks is to allow you to
carry longer objects that could
not otherwise be accommodated.
Never allow a passenger to sit on top of the folded down
seatback while the car is mov-
ing. This is not a proper seat-
ing position since no seat
belts are available for use.
To reduce the risk of injury caused by sliding cargo within
the passenger compartment
of the vehicle, objects carried
on the folded down seatback
should not extend higher than
the top of the front seats.
CAUTION - Blocked HEV
battery duct
Do not put objects in the centerlower part of rear seats. Thiscould block the battery coolingduct causing battery degradation.
OJFHQ015005
■Hybrid

Safety features of your vehicle
18
3
To fold down the rear seatback
(for Hybrid, if equipped):
1. Make sure the rear seat belt web-
bing is in the guide to prevent the
seat belt from being damaged.
2. Set the front seatback to the upright position and if necessary,
slide the front seat forward.
3. Lower the rear headrests to the lowest position.
CAUTION - Blocked PHEV
Battery Duct
Do not put objects on the left
side of rear seat. This couldblock the battery cooling ductcausing battery degradation.
OJFHP036114L
■Plug-in hybrid
OJF035081L
WARNING - Objects
Objects carried on the folded
down seatback should not
extend higher than the top of
the front seatbacks. This could
allow cargo to slide forward and
cause injury or damage during
sudden stops.

4123
Features of your vehicle
✽ ✽NOTICE
Never place anything over the sensor
located on the instrument panel to
ensure better control of the heating
and cooling system.
Manual heating and air condi-
tioning
The heating and cooling system can
be controlled manually by pressing
buttons or turning knob(s) other than
the AUTO button. In this case, the
system works sequentially according
to the order of buttons or knob(s)
selected.
1. Start the engine.
2. Set the mode to the desired posi-
tion.
For improving the effectiveness of
heating and cooling;- Heating:
- Cooling:
3. Set the temperature control to the desired position. 4. Set the air intake control to the
outside (fresh) air position.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system on.
Press the AUTO button in order to
convert to full automatic control of
the system.
OJFHP048086L
■Type A
■Type B
OJFA045086

4131
Features of your vehicle
Automatic Ventilation (if equipped)
When the ignition is ON or when the
engine is running and the outside
temperature is below 59°F (15°C),
the automatic ventilation feature will
activate if the recirculated air intake
position is selected for more than 5
minutes while A/C is off and floor
mode is selected. In this condition
the air intake position will automati-
cally switch to the outside (fresh) air
intake position.
To cancel or reset the Automatic
Ventilation
When the air conditioning system is
on, select Face Level mode and
while pressing the A/C button, press
the recirculated air position button
five times within three seconds.
When the automatic ventilation is
canceled, the indicator blinks 3
times. When the automatic ventila-
tion is activated, the indicator blinks
6 times.
System operation
Ventilation
1.Set the mode to the position.
2.Set the air intake control to the out- side (fresh) air position.
3.Set the temperature control to the desired position.
4.Set the fan speed control to the desired speed.
Heating
1.Set the mode to the position.
2.Set the air intake control to the out-side (fresh) air position.
3.Set the temperature control to the desired position.
4.Set the fan speed control to the desired speed.
5.If dehumidified heating is desired, turn the air conditioning system (if
equipped) on.
If the windshield fogs up, set the mode to the
orposition. Operation Tips
To keep dust or unpleasant fumes
from entering the vehicle through
the ventilation system, temporarily
set the air intake control to the
recirculated air position. Be sure to
return the control to the fresh air
position when the irritation has
passed to keep fresh air in the
vehicle. This will help keep the driv-
er more alert and comfortable.
Air for the heating/cooling system is drawn in through the grilles just
ahead of the windshield. Care
should be taken that these are not
blocked by leaves, snow, ice or
other obstructions.
To prevent interior fog on the wind- shield, set the air intake control to
the fresh air position and fan speed
to the desired position, turn on the
air conditioning system, and adjust
the temperature control to desired
temperature.

Features of your vehicle
132
4
Air conditioning
All Kia Air Conditioning Systems are
filled with R-1234yf refrigerant.
1.Start the hybrid system. Press the
air conditioning button.
2.Set the mode to the position.
3.Set the air intake control to the out- side air or recirculated air position.
4.Adjust the fan speed control and temperature control to maintain
maximum comfort.
When maximum cooling is desired, set the temperature control to the
extreme left position, set the mode
control to the MAX A/C position,
then set the fan speed control to
the highest speed.CAUTION - Excessive A/C
Use
When using the air conditioningsystem, monitor the tempera-ture gauge closely while drivingup hills or in heavy traffic whenoutside temperatures are high.Air conditioning system opera-tion may cause engine over-heating. Continue to use theblower fan but turn the air con-ditioning system off if the tem-perature gauge indicates engineoverheating.
CAUTION
When opening the windows inhumid weather, air conditioningmay create water dropletsinside the vehicle. Since exces-sive water droplets may causedamage to electrical equipment,air conditioning should only beused with the windows closed.

4133
Features of your vehicle
Air conditioning system operation tips
If the vehicle has been parked indirect sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
To help reduce moisture inside of the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system.
During air conditioning system operation, you may occasionally
notice a slight change in engine
speed as the air conditioning com-
pressor cycles. This is a normal
system operation characteristic.
Use the air conditioning system every month only for at least a few
minutes to ensure maximum sys-
tem performance. When using the air conditioning
system, you may notice clear water
dripping (or even puddling) on the
ground under the passenger side
of the vehicle. This is a normal sys-
tem operation characteristic.
Operating the air conditioning sys- tem in the recirculated air position
provides maximum cooling, how-
ever, continual operation in this
mode may cause the air inside the
vehicle to become stale.
During cooling operation, you may occasionally notice a misty air flow
because of rapid cooling and
humid air intake. This is a normal
system operation characteristic.Climate control air filter
(if equipped)
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle 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 accu-
mulation on the inside of the wind-
shield even when the outside (fresh)
air position is selected. If this hap-
pens, have the climate control air fil-
ter replaced by an authorized Kia
dealer.
1LDA5047
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core

Features of your vehicle
136
4
For maximum defrosting, set the
temperature 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 posi-
tion.
Before driving, clear all snow and ice from the windshield, rear win-
dow, 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 effi-
ciency and to reduce the probabili-
ty of fogging up the inside of the
windshield.Automatic climate control
system
To defog inside windshield
1. Set the fan speed to the desired position.
2. Select desired temperature.
3. Press the defroster button ( ).
4. The outside (fresh) air position will be selected automatically and the
air conditioning will turn on
according to the detected ambient
temperature.
WINDSHIELD DEFROSTING AND DEFOGGING
WARNING - Windshield
heating
Do not use the or posi-
tion during cooling operation in
extremely humid weather. The
difference between the temper-
ature of the outside air and the
windshield could cause the
outer surface of the windshield
to fog up, causing loss of visi-
bility. In this case, set the mode
selection to the position
and fan speed control to the
lower speed.
OJF045098

5137
Driving your vehicle
Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 8. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 8. The level of charge in
your battery can be checked by an
authorized Kia dealer or a service
station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 9 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
Kia dealer.

67
What to do in an emergency
IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you will experience a
loss of power, or hear loud pinging or
knocking, the engine is probably too
hot. If this happens, you should:
1. Turn on the emergency warningflasher and stop in a safe place.
Move the shift lever to P (Park)
and engage the parking brake.
2. If hot steam does not come out from the engine room, carefully
open the engine room and check
whether the water pump connec-
tor is properly engaged. If the con-
nector is not properly engaged,
stop the engine immediately and
properly engage the connector.
Then, turn the engine on.
3. Turn on the air conditioner. 4. If the “HEV Warning” light turns on
in the driver instrument cluster, or
engine coolant or hot steam emits
from the engine coolant filler, stop
the engine immediately. Then, call
the nearest authorized Kia dealer
for assistance. If the “Engine
Warning” light remains illuminated
or the engine coolant is not flowing
out, keep the engine running.
Open the engine hood for ventila-
tion to help cool down the engine. 5. Check the coolant temperature
gauge on the instrument cluster to
make sure the coolant tempera-
ture is sufficiently cooled down. If
the engine coolant level is low,
please check the connecting parts
between the radiator hose, heater
hose, and water pump for any
signs of leakage. When there is no
sign of leakage, please refill the
engine coolant. If causes and
signs of engine overheating such
as warning light illumination,
engine coolant leakage, or cooling
fan malfunction are found, stop the
vehicle the earliest. Then, call the
nearest authorized Kia dealer for
assistance.
WARNING
While the engine is running,
keep hair, hands and clothing
away from moving parts such
as the fan and drive belts to pre-
vent injury.