2012 KIA Optima Hybrid high voltage battery

25
Your vehicle at a glance
TRUNK OVERVIEW
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1. Service plug.......................................H12
2. Battery cover.....................................7-35
3. Cooling duct ......................................H13
4. High voltage battery ............................H9

Features of your vehicle
50
4
Engine coolant temperature gauge
This gauge shows the temperature of the
engine coolant when the engine
start/stop button is ON.
Do not continue driving with an overheat-
ed engine. If your vehicle overheats, refer
to “If the engine overheats” in section 6.
State of charge (SOC)
The state of charge (SOC) gauge indi-
cates the hybrid battery's charge level. If
the SOC is near L level, the vehicle auto-
matically operates the engine to charge
the battery. However, if the service indi-
cator and MIL(Malfunction indicator
lamp) turn on when the State of
Charge(SOC) is near L(Low), the vehicle
should be towed. Refer to the chapter 6.
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CAUTION
If the gauge pointer moves beyond
the normal range area toward the“H” position, it indicates overheat-ing that may damage the engine.
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WARNING
Never remove the radiator cap
when the engine is hot. The engine
coolant is under pressure and
could cause severe burns. Wait
until the engine is cool before
adding coolant to the reservoir.
WARNING
Never try to start the vehicle if the
fuel tank is empty. The engine is
impossible to charge the high volt-
age battery of hybrid system. If you
try to start the vehicle when the fuel
is empty, the high voltage battery
will become discharged and be
damaged.

Features of your vehicle
78
4
Check charging system
This warning illuminates when a mal-
function is detected with the Charging
System.
✽ ✽
NOTICE
When the high voltage battery power is
low, the warning may occur. In that
time, the warning may disappear when
the battery is charged by engine.
Check active air flap system
This warning will be illuminated as follow;
- When the actuator flap malfunction is
detected
- When the actuator air flap controller malfunction detected
- In a condition opening the air flap, if the air flap is not open.
When the all conditions illuminating the
warning are cleared, the warning will be
off.
✽ ✽ NOTICE
In winter, the warning may not illumi-
nate immediately.
The active air flap system is even nor-
mal condition, the warning or warning
indicator(MIL) may be turned on. In
that time, check the flap frozen condi-
tion or attached materials.
If the flap is frozen in winter, the warn-
ing indicator(MIL) may be turned on
without warning contents.
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Driving your vehicle
38
5
Use high quality ethylene glycol
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 cooling system, lubri-
cates the water pump and prevents
freezing. Be sure to replace or replenish
your coolant in accordance with the
maintenance schedule in section 7.
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 bat-
tery and cables as described in section
7. Never attempt to check the Hybrid
High Voltage Battery. The level of charge
in your battery can be checked by an
authorized Kia dealer or a service sta-
tion.
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 section 8
for recommendations. If you aren't sure
what weight oil you should use, consult
an authorized Kia dealer.
Check spark plugs and ignition
system
Inspect your spark plugs as described in
section 7 and replace them if necessary.
Also check all ignition wiring and compo-
nents to be sure they are not cracked,
worn or damaged in any way.
To keep locks from freezing
To keep the locks from freezing, squirt an
approved de-icer fluid or glycerine into
the key opening. If a lock is covered with
ice, squirt it with an approved de-icing
fluid to remove the ice. If the lock is
frozen internally, you may be able to thaw
it out by using a heated key. Handle the
heated key with care to avoid injury.
Use approved window washer
anti-freeze in system
To keep the water in the window washer
system from freezing, add an approved
window washer anti-freeze solution in
accordance with instructions on the con-
tainer. Window washer anti-freeze is
available from an authorized Kia dealer
and most auto parts outlets. Do not use
engine coolant or other types of anti-
freeze as these may damage the paint
finish.

Maintenance
36
7
Always read the following
instructions carefully when han-
dling a battery.
If any electrolyte gets into your eyes, flush your eyes with clean
water for at least 15 minutes and
get immediate medical attention.
If electrolyte gets on your skin,
thoroughly wash the contacted
area. If you feel pain or burning
sensation, get medical attention
immediately.
An inappropriately disposed bat- tery can be harmful to the envi-
ronment and human health.
Dispose the battery according to
your local law(s) or regulation.
The battery contains lead. Do
not dispose of it after use.
Please return the battery to an
authorized Kia dealer to be recy-
cled. When you don’t use the vehicle for a long
time in the low temperature area, sepa-
rate the battery and keep it indoors.WARNING - Recharging
battery
Never attempt to recharge the bat-
tery when the battery cables are
connected.
WARNING - Risk of elec-
trocution
Never touch the electrical ignition
system while the vehicle is run-
ning. This system works with high
voltage which can "zap" you.

H2
Kia Hybrid-Electric Vehicle (HEV) uses
a gasoline engine and an electric
motor for power. The electric motor is
run from a 270V high voltage HEV bat-
tery.
The HEV computer decides when to
use the engine and when to use elec-
tric motor, according to driving condi-
tions. At times, both are used simulta-
neously.
By turning off the engine under cer-
tain conditions and using the electric
motor alone, the HEV system saves
fuel.
When the HEV battery reaches a low
state of charge, the engine will cycle
on and off to recharge the battery.
Charging also occurs when decelerat-
ing by using regenerative braking.Hybrid System Display
Many of the displays provide information
about the hybrid system, such as the
ECO Level and ECO Score.
The ECO Level displays inform the driver
of the vehicle's fuel efficiency. If the vehi-
cle is driven economically, the ECO Level
rises. When the vehicle is driven in EV
mode, there is a reduction in carbon diox-
ide (CO2) emissions.
The Total ECO Score display indicates
the number of times the ECO Level has
reached its maximum.ECO Level display
When the vehicle is started, the ECO
Level display will indicate level number 4.
If you drive economically, the ECO Level
will increase. However, if you do not drive
economically, the ECO Level will
decrease.
Kia HYBRID SYSTEM
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H8
THE COMPONENTS OF HYBRID VEHICLE
1. Engine : 2.4L
2. Motor : 30kW
3. Transmission : 6AT
4. Hybrid starter generator (HSG)
5. High voltage battery system6. HPCU (Hybrid Power Control Unit)
7. Electric Water Pump (EWP)
8. Brake system with hydraulic compressor
9. Electric air-conditioning compressor
10. Electric Oil Pump (EOP)
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H9
The Hybrid battery uses high voltage top
operate the electric motor and other
components and other components. High
voltage is dangerous if touched.
Your vehicle is equipped with orange col-
ored insulation and covers over the high
voltage components to protect people
from electric shock. High voltage warning
labels are attached to some system com-
ponents as additional warnings. Your
vehicle's hybrid system should therefore
only be inspected or repaired by an
authorized Kia dealer.
WARNING
Never touch orange or high voltage
labeled components including wires,
cables, and connections. If the insu-
lators or covers are damaged or
removed, severe injury or death from
electrocution may occur.
WARNING
When you replace the fuses, in the
engine compartment, never touch
the HPCU.
If you touch the HPCU, you may get
electrocuted resulting in injury or
death.
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HPCU
HEV Battery