KIA OPTIMA 2020 Service Manual

H41
The Hybrid battery uses high-voltage
to operate the electric motor and
other components. High voltage is
dangerous if touched.
Your vehicle is equipped with orange
colored insulation which covers over
the high voltage components to pro-
tect people from electric shock.
High voltage warning labels are
attached to some system compo-
nents as additional warnings. Your
vehicle is recommended to be serv-
iced by an authorized Kia dealer.
WARNING - High voltage
components
Never touch orange or high-volt-
age labeled components includ-
ing wires, cables, and connec-
tors. If the insulators or covers
are damaged or removed, severe
injury or death from electrocu-
tion may occur.
WARNING- Touching HPCU
When replacing the fuses in the
engine compartment, never
touch the HPCU. The HPCU car-
ries high voltage. Touching the
HPCU could result in electrocu-
tion, serious injury, or death.
OJFHQ015002
OJFHQ015003
OJFHPQ018003N
HPCU
HEV Battery
PHEV Battery

H42
✽ ✽NOTICE - Prolonged parking
Prolonged parking might cause bat-
tery discharge and operation failure
due to natural discharge. Driving
the vehicle approximately once
every 2 months, more than 15 km (9
mile) is recommended. The battery
will be charged automatically when
driving the vehicle.
CAUTION- High Voltage
Battery Damage
When loading your vehicle, be careful transporting items in amanner that could damage thehigh voltage battery. Do notstore items on top of the highvoltage battery or overload thetrunk area. Such actions mayultimately damage the high volt-age battery unit.
CAUTION- Carrying
Liquids in Trunk
Do not load large amounts of liq- uid in open containers in the vehi-cle. If spilled onto the HEV bat-tery, the liquid may cause a shortor further damage to the battery.
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
WARNING- Battery
Electrolyte
As with all batteries, avoid fluid
contact with the Hybrid battery.
If the battery is damaged and if
electrolyte comes in contact
with your body, clothes or eyes,
immediately flush with a large
quantity of fresh water. Have
your eyes examined by a doctor
as soon as possible.
OYFH021002N
Motor
WARNING- After-market
Battery Charger
Do not use an after-market bat-
tery charger to charge the
Hybrid battery. Doing so may
result in death or serious injury.

H43
WARNING - High Waters
Avoid high waters as this may result in your vehicle becom-
ing saturated with water and
could compromise the high
voltage components.
Do not touch any of the high voltage components within
your vehicle if your vehicle
has been submerged in water
equal to half of the vehicle
height. Touching high voltage
components once submerged
in water could result in severe
burns or electric shock that
could result in death or seri-
ous injury.WARNING
-
Exposure to High Voltage
High voltage in the hybrid bat- tery system is very dangerous
and can cause severe burns
and electric shock. This may
result in serious injury or death.
For your safety, never touch, replace, dismantle or remove
any portion of the hybrid bat-
tery system including compo-
nents, cables and connectors.
CAUTION - Cleaning
Engine
When you clean the engine com-partment, do not wash usingwater. Water may cause electricarcing to occur and damage elec-tronic parts and components.
WARNING - Use of Water
or Liquids
If water or liquids come into
contact with the hybrid system
components, and you are also
in contact with the water, severe
injury or death due to electrocu-
tion may occur.
WARNING
-
Hot Components
When the hybrid battery system
operates, the HEV battery sys-
tem can be hot. Heat burns may
result from touching even insu-
lated components of the HEV
system.

H44
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
Safety plugSome Special Features of the
Hybrid Vehicle.
Hybrid vehicles sound different than
gasoline engine vehicles. When the
hybrid system operates, you may
hear a sound from the hybrid battery
system behind the rear seat. If you
apply the accelerator pedal rapidly,
you may hear a sound. When you
apply the brake pedal, you may hear
a sound from the regenerative brake
system. When the hybrid system is
turned off or on, you may hear a
sound in the engine compartment. If
you depress the brake pedal repeat-
edly when the hybrid system is
turned on, you may hear a sound in
the engine compartment. None of
these sounds indicate a problem.
They are characteristics of hybrid
vehicles.
When the hybrid system is turned on,
the engine may run. This does not
indicate a malfunction. If the “ ”
symbol is on, the hybrid system is
operating. Even if the gasoline engine
is off, you can operate the vehicle.The HEV system may emit electromag-
netic waves which can affect the per-
formance of electronic devices appli-
ances, such as laptop computers,
which are not part of the vehicle design.
If you park the vehicle for a long time,
the hybrid system will discharge. You
need to drive the vehicle several times
per month to maintain a charge.
When you start the hybrid system in
the "P" transmission position, the
“ ” symbol is illuminated in the
cluster. The driver can drive the vehi-
cle even if the engine is stopped.
OJFHPQ018053
WARNING- Safety Plug
Never touch the safety plug.
Safety plug is attached to high
voltage hybrid battery system.
Touching safety plug will result
in death or serious injury.
Service personnel should follow
procedure in service manual.
WARNING- Turning off HEV system
When you leave the vehicle, you
should turn off the hybrid sys-
tem. If you depress the accelera-
tor pedal by mistake and the vehi-
cle is not in the "P" position, the
vehicle will accelerate. This may
result in serious injury or death.

H45
Virtual Engine Sound System
(VESS)
The Virtual Engine Sound System
generates a simulated engine sound
for pedestrians to hear the vehicle
while at low speeds in EV mode.
High Voltage Battery Air Intake
Hybrid battery air intake
The hybrid battery air intake is locat-
ed at the bottom the rear seats.
The air intake cools down the hybrid
battery.
When the hybrid battery air intake is
blocked, the hybrid battery may over-
heat. Do not obstruct the air intake
with any other objects.
Plug-in Hybrid Vehicle
The high-voltage battery air intake is
located on the left side of the rear
seats. The air intake cools down the
high-voltage battery.
When the high-voltage battery air
intake is blocked, the high-voltage
battery may overheat and the vehicle
performance may become limited
and set a hybrid warning lamp. Do
not obstruct the air intake with any
other objects.OJFHQ015005
OJFHP036114L
WARNING- Interference
with electronic medical
devices
Electromagnetic waves that are
generated from the charger can
impact medical electric devices
such as an implantable cardiac
pacemaker. When using such
medical electric devices, ask
your medical professional and
the device manufacturer
whether charging your electric
vehicle will impact the operation
of the medical electric devices.

H46
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)
If An Accident Occurs
Avoid the engine compartment.
Avoid making contact with anyorange or high voltage wires,
cables, or components.
Assume that a high voltage com- ponent is exposed and move away
from the vehicle as promptly as
possible.
Refer to Chapter 6 for towing infor- mation.
✽ ✽ NOTICE
• If a small scale fire occurs, use a
fire extinguisher rated ABC or BC
for electrical fires.
If it is impossible to extinguish the
fire in the early stage, remain a
safe distance from the vehicle and
immediately call 911. Also, advise
them that a hybrid vehicle is
involved.
If the fire spreads to the high volt-
age battery, large amount of water
is needed to put out the fire.
Using small amount of water or
fire extinguishers not meant for
electrical fires could cause serious
injury or death from electrical
shocks.
• If you need towing, refer to chap- ter 6.WARNING - Air Intake
Blocking the air intake behind the rear seats may damage
the HEV battery.
Do not allow any water to enter cleaning. If any water
enters the air intake, the
Hybrid battery may cause an
electric shock which can
cause serious injury or death
due to electrocution.

H47
If a vehicle accident occurs:
1. Stop the vehicle and shift thetransmission into "P" position. And
then depress the parking brake.
2. Turn off the Hybrid system by pushing the Engine Start/Stop
Button.
3. Step away from the vehicle to a safe place.
4. Call emergency services for help and let them know the vehicle is a
Hybrid vehicle. If an immersion in water occurs:
If your vehicle was flooded and has
soaked carpeting or water on the
flooring, you should not try to start
the Hybrid system. Have the car
towed to an authorized Kia dealer.When the hybrid vehicle shuts
off
When the high voltage battery or 12-
volt battery discharges, or fuel tank is
empty, the hybrid system may not
operate.
If the Hybrid system stops operating
while the vehicle is moving, reduce
the vehicle speed gradually. Pull
your vehicle off the road to a safe
area, and shift the transmission in to
Park (P) position and;
1. Turn on the hazard warning flashers.
2. Set the start button at OFF, and try
to start the Hybrid system by
applying the brake pedal and
pushing the start button.
3. If the Hybrid system will not oper- ate, refer to “EMERGENCY
STARTING” in chapter 6.
Before you try to jump start the vehi-
cle, confirm the fuel level. If the fuel
level is low, add more fuel before
attempting an emergency start.
WARNING
If a submersion in water occurs:
If your vehicle was flooded and
has soaked carpeting or water
on the flooring, you should not
try to start the Hybrid system.
Never touch the high voltage
cables, connectors and pack-
age modules, because an elec-
trical shock may occur causing
injury or death. High Voltage
cables are orange in color.
In this case, have the vehicle be
towed to and inspected by an
authorized Kia dealer.

H48
COMPONENTS OF THE HYBRID/PLUG-IN HYBRID VEHICLE
WARNING - Accident
Vehicle
Never touch electric wires or
cables. If exposed electric wires
or cables are visible inside or
outside of your vehicle, an elec-
tric shock may occur.
WARNING - Putting out
fire
Never use a small quantity of
water to put out a fire in your
vehicle. If a fire occurs, evacu-
ate the car immediately and
contact the fire department.

Kia, THE COMPANY
Thank you for becoming the owner of a new Kia vehicle.
As a global car manufacturer focused on building high-quality vehi-
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with a customer service experience that exceeds your expectations.
All information contained in this Owner’s Manual was accurate at the
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at any time so that our policy of continual product improvement can
be carried out.
This manual applies to all trims of this vehicle and includes images,
descriptions, and explanations of optional as well as standard equip-
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to your specific Kia vehicle. Some images are shown for illustration
only and may show features that differ from those on your vehicle.Drive safely and enjoy your Kia!

i
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When you require service, remember that your Kia dealer
knows your vehicle best. Your dealer has factory-trained tech-
nicians, recommended special tools and genuine Kia replace-
ment parts. It is dedicated to your complete customer satisfac-
tion.
Because subsequent owners require this important information
as well, this publication should remain with the vehicle if it is
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This manual will familiarize you with operational, mainte-
nance and safety information about your new vehicle. It is sup-
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that provides important information on all warranties regarding
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Printed in Korea
Foreword