2020 KIA OPTIMA HYBRID engine

4129
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
keep pressing the air intake control
button more than 3 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
130
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.

4131
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
144
4
* The actual sunvisor lamp in the vehi-
cle may differ from the illustration.Power outlet
The power outlet is designed to pro-
vide power for mobile telephones or
other devices designed to operate
with vehicle electrical systems. The
devices should draw less than 10
amps with the engine running. Use the power outlet only when the
engine is running and remove the
accessory plug after use. Using the
accessory plug for prolonged peri-
ods of time with the engine off
could cause the battery to dis-
charge.
Only use 12V electric accessories which are less than 10A in electric
capacity.
Adjust the air-conditioner or heater to the lowest operating level when
using the power outlet.
Close the cover when not in use.
Some electronic devices can cause electronic interference when
plugged into a vehicle’s power out-
let. These devices may cause
excessive audio static and malfunc-
tions in other electronic systems or
devices used in your vehicle.
Push the plug in as far as it will go. If good contact is not made, the
plug may overheat and the fuse
may open.
CAUTION- Vanity mirror
lamp
If you use the vanity mirrorlamp, turn off the lamp beforereturning the sunvisor to itsoriginal position, otherwise itcould result in battery dis-charge and possible sunvisordamage.
OJFA045122
OJFA045338
■ Front seat
■Rear seat

4145
Features of your vehicle
Plug in battery equipped electronicdevices with reverse current pro-
tection. The current from the bat-
tery may flow into the vehicle’s
electri cal/electronic system and
cause system malfunction.USB charger
The USB charger is designed to
recharge batteries of small size elec-
trical devices using a USB cable. The
electrical devices can be recharged
when the Engine Start/Stop button is
in ACC/ON/START position. The battery charging state may be
monitored on the electrical device.
Disconnect the USB cable from the
USB port after use.
Some devices are not supported
for fast charging but will be
charged with normal speed.
Use the USB charger when the engine is running to prevent bat-
tery discharge.
Only devices that fit the USB port can be used.
The USB charger can be used only for battery charging purposes.
Battery chargers cannot be charged.
WARNING - Electric shock
Do not put a finger or a foreign
object (pen, etc.) into a power
outlet and do not touch with a
wet hand. You may receive an
electric shock.
OJFA045337
OJF045229L
■ Front seat
■Rear seat

Driving your vehicle
Before driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
• Before entering vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
. . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Engine start/stop button . . . . . . . . . . . . . . . . . . . . . 5-7
. . . . . . . . . . . . . . 5-7

. . . . . . . . . . . . . . . . . . . . . . 5-9
Automatic transmission . . . . . . . . . . . . . . . . . . . . . 5-12
. . . . . . . . . . . . . . . 5-12
. . . . . . . . . . . . . . . . . . . . . . . . 5-18
Brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
. . . . . . . . . . . . . . . . . . . . . 5-21
. . . . . . . . . . . . . . . . 5-22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-\
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

. . . . . . . . . . . . . . 5-34
. . . . . . . . . . . . 5-39
. . . . . . . . . . . . . . . . . 5-40

Forward Collision-avoidance Assist (FCA) system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43\
. . . . . . . . . . . . . . . . . . . 5-43
. . . . . . . . 5-45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47

. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-49
. . . . . . . . . . . . . . . . . . . . . . . 5-51
Forward Collision-avoidance Assist (FCA) system - sensor fusion type (front radar+front view
camera) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-57
. . . . . . . . . . . . . . . . . . . 5-57
. . . . . . . . 5-59
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-61
. . . . 5-62
. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64
. . . . . . . . . . . . . . . . . . . . . . . 5-65
Cruise Control System . . . . . . . . . . . . . . . . . . . . . . 5-72
. . . . . . . . . . . . . . . . . . . . . 5-73

. . . . . . . . . . . . . . . . . . 5-74
To temporarily accelerate with the cruise control on . 5-74
do one of the following . . . 5-74
5

Driving your vehicle
45
Be sure the exhaust system does
not leak.
The exhaust system should be
checked whenever the vehicle is
raised to change the oil or for any
other purpose. If you hear a change in
the sound of the exhaust or if you drive
over something that strikes the under-
neath side of the vehicle, have the
exhaust system checked as soon as
possible by an authorized Kia dealer.
WARNING- Engineexhaust
Do not inhale exhaust fumes or
leave your engine running in a
enclosed area for a prolonged
time. Exhaust fumes contain
carbon monoxide, a colorless,
odorless gas that can cause
unconsciousness and death by
asphyxiation.
WARNING- Open trunk
Do not drive with the trunk open.
Poisonous exhaust gases can
enter the passenger compart-
ment. If you must drive with the
trunk open proceed as follows:
1. Close all windows.
2. Open side vents.
3. Set the air intake control at "Fresh", the air flow control at
"Floor" or "Face" and the fan
at the highest speed.

55
Driving your vehicle
Before entering vehicle
• Be sure that all windows, outsidemirror(s), and outside lights are
clean.
Check the condition of the tires.
Check under the vehicle for any sign of leaks.
Be sure there are no obstacles behind you if you intend to back up.
Necessary inspections
Fluid levels, such as engine oil,
engine coolant, brake fluid, and
washer fluid should be checked on a
regular basis, at the exact interval
depending on the fluid. Further
details are provided in chapter 8,
“Maintenance”.
Before starting
Close and lock all doors.
Position the seat so that all con-trols are easily reached.
Buckle your seat belt.
Adjust the inside and outside rearview mirrors.
Be sure that all lights work.
Check all gauges.
Check the operation of warning lights when the engine start/stop
button is turned to the ON position.
Release the parking brake and make sure the brake warning light
goes out.
For safe operation, be sure you are
familiar with your vehicle and its
equipment.
BEFORE DRIVING
WARNING - Distracted driving
Focus on the road while driving.
The driver's primary responsi-
bility is in the safe and legal
operation of the vehicle. Use of
any handled devices, other
equipment or vehicle systems
that distract the driver should
not be used during vehicle
operation.