coolant temperature KIA Optima Hybrid 2012 3.G Owner's Manual

Introduction
61
INDICATOR SYMBOLS ON THE INSTRUMENT CLUSTER
Seat belt warning light
High beam indicator
Turn signal indicator
ABS warning light
Parking brake & Brake fluid
warning light
Engine oil pressure warning light
12V charging system warning light
ESC indicator/ESC malfunction
indicator
ESC OFF indicator
Malfunction indicator
Air bag warning light
Cruise indicator*
Cruise SET indicator*
Low fuel level warning light
Door ajar warning light
Trunk lid open warning light
Front fog light indicator*
Engine coolant temperature
warning light
Electronic power steering (EPS)
system warning light*
Shift pattern indicator
Low Tire Pressure Telltale/TPMS
Tire Pressure monitoring
system/Malfunction indicator
Active ECO
ECO
Immobilizer indicator
Vehicle ready indicator EV (Electronic Vehicle) MODE
Service indicator
* : if equipped
❈ For more detailed explanations, refer
to “Instrument cluster” in section 4.

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.
OTFH040057N
CAUTION
If the gauge pointer moves beyond
the normal range area toward the“H” position, it indicates overheat-ing that may damage the engine.
OTFH040225N
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
66
4
To check bulb operation, check whether
the parking brake and brake fluid warning
light illuminates when the engine
start/stop button is in the ON position.Front fog light indicator
(if equipped)
This indicator comes on when the front
fog lights are ON.
Shift pattern indicator
The indicator displays which automatic
transaxle shift position is selected.
✽ ✽ NOTICE
If the engine coolant temperature warn-
ing light illuminates, it indicates over-
heating that may damage the engine.
WARNING
Driving the vehicle with a warning
light on is dangerous. If the brake
warning light remains on, have the
brakes checked and repaired imme-
diately by an authorized Kia dealer.
WARNING
When the brake function is not well
and the regenerative brake system
is not operated with brake system
malfunction, the brake warning
light turned on with 'check brake' is
displayed on the LCD and warning
chime will sound. In this condition
you can stop your vehicle by apply-
ing greater force to the brake pedal
than normal and the stopping dis-
tance will be longer. Have the sys-
tem checked by an authorized Kia
dealer as soon as possible.

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.

67
What to do in an emergency
IF THE ENGINE OVERHEATS
If your temperature gauge indicates over-
heating, you will experience a loss of
power, or hear loud pinging or knocking,
the engine is probably too hot. If this hap-
pens, you should:
1. Pull off the road and stop as soon as itis safe to do so.
2. Place the shift lever in P (automatic transaxle) or neutral (manual
transaxle) and set the parking brake. If
the air conditioning is on, turn it off.
3. If engine coolant is running out under the vehicle or steam is coming out from
underneath the hood, stop the engine.
Do not open the hood until the coolant
has stopped running or the steaming
has stopped. If there is no visible loss
of engine coolant and no steam, leave
the engine running and check to be
sure the engine cooling fan is operat-
ing. If the fan is not running, turn the
engine off.
4. Check to see if the water pump drive belt is missing. If it is not missing,
check to see that it is tight. If the drive
belt seems to be satisfactory, check for
coolant leaking from the radiator,
hoses or under the vehicle. (If the air
conditioning had been in use, it is nor-
mal for cold water to be draining from it
when you stop). 5. If the water pump drive belt is broken
or engine coolant leaks, stop the
engine immediately and call the near-
est authorized Kia dealer for assis-
tance. 6. If you cannot find the cause of the
overheating, wait until the engine tem-
perature has returned to normal. Then,
if coolant has been lost, carefully add
coolant to the reservoir to bring the
fluid level in the reservoir up to the
halfway mark.
7. Proceed with caution, keeping alert for further signs of overheating. If over-
heating happens again, call an author-
ized Kia dealer for assistance.
Serious loss of coolant indicates there is
a leak in the cooling system and this
should be checked as soon as possible
by an authorized Kia dealer.
WARNING - Under the
hood
While the engine is running, keep
hair, hands and clothing away from
moving parts such as the fan and
drive belts.
WARNING - Radiator cap
Do not remove the radiator cap
when the engine is hot. This can
allow coolant to be blown out of the
opening and cause serious burns.

725
Maintenance
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F and L marks on the side of the
coolant reservoir when the engine is
cool.
If the coolant level is low, add enough
distilled (deionized) water to provide pro-
tection against freezing and corrosion.
Bring the level to F, but do not overfill. If
frequent additions are required, see an
authorized Kia dealer for a cooling sys-
tem inspection.
(Continued)
The engine coolant level is influ-enced by hybrid system tempera-
ture. Before filling the engine
coolant and/or inverter coolant,
turn the hybrid vehicle off, fill the
engine coolant and/or inverter
coolant carefully.
Turn the engine off and wait until it cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the
cooling system. When you are
sure all the pressure has been
released, press down on the cap,
using a thick towel, and continue
turning counterclockwise to
remove it.
Even if the engine is not operat- ing, do not remove the radiator
cap and/or inverter or the drain
plug while the engine and radia-
tor are hot. Hot coolant and
steam may still blow out under
pressure, causing serious injury.
OYFH071005N
WARNING
The electronic motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure and
vehicle speed. It may sometimes
operate even when the engine is
not running. Use extreme caution
when working near the blades of
the cooling fan so that you are not
injured by the rotating fan blades.
As the engine coolant temperature
decreases, the electric motor will
automatically shut off. This is a nor-
mal condition.

Maintenance
26
7
Recommended engine and inverter
coolant
When adding coolant, use only deion- ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
The engine in your vehicle has alu- minum engine parts and must be pro-
tected by an ethylene-glycol-based
coolant to prevent corrosion and freez-
ing.
DO NOT USE alcohol or methanol coolant or mix them with the specified
coolant.
Do not use a solution that contains more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution. For mixture percentage, refer to the fol-
lowing table.
-15°C (5°F) 35
65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OYFH071006N-1/OYFH071070N-1
Radiator cap
Inverter coolant cap

747
Maintenance
Temperature -A, B & C
The temperature grades are A (the
highest), B and C representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. The grade C cor-
responds to a level of performance
which all passenger car tires must
meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher
levels of performance on the labora-
tory test wheel than the minimum
required by law.Tire terminology and defini-
tions
Air Pressure:The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
kilopascal (kPa) or pounds per
square inch (psi).
Accessory Weight: This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, automatic
transaxle, power seats, and air con-
ditioning.
Aspect Ratio: The relationship of a
tire's height to its width.
Belt: A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.
Bead: The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire: A pneumatic tire in
which the plies are laid at alternate
angles less than 90 degrees to the
centerline of the tread. Cold Tire Pressure:
The amount of
air pressure in a tire, measured in
kilopascal (kPa) or pounds per
square inch (psi) before a tire has
built up heat from driving.
Curb Weight: This means the weight
of a motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil and
coolant, but without passengers and
cargo.
DOT Markings: The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric des-
ignator which can also identify the
tire manufacturer, production plant,
brand and date of production.
GVWR: Gross Vehicle Weight Rating
GAWR FRT: Gross Axle Weight
Rating for the Front Axle.
GAWR RR: Gross Axle Weight
Rating for the Rear axle.

Index
4I
Driving in flooded areas ··················\
··················\
············5-35
Driving in the rain··················\
··················\
··················\
····5-35
Economical operation ··················\
··················\
················5-31
Electric chromic mirror (ECM) with HomeLink system ··················\
··················\
··················\
··················\
··4-37
Electric power steering ··················\
··················\
··············4-34
Electronic stability control (ESC) ··················\
···············5-20
Emergency starting ··················\
··················\
··················\
····6-5 Jump starting ··················\
··················\
··················\
···········6-5
Push starting ··················\
··················\
··················\
············6-6
Emergency while driving ··················\
··················\
·············6-3
Emission control system ··················\
··················\
············7-68 Crankcase emission control system··················\
···········7-68
Evaporative emission control System ··················\
·······7-68
Exhaust emission control system ··················\
··············7-69
Engine ··················\
··················\
··················\
··················\
······8-2
Engine compartment ··················\
··················\
············2-4, 7-2
Engine coolant ··················\
··················\
··················\
·········7-24
Engine number ··················\
··················\
··················\
···········8-8
Engine oil ··················\
··················\
··················\
·················7-22\
Engine overheats ··················\
··················\
··················\
········6-7
Engine start/stop button ··················\
··················\
···············5-5
Engine temperature gauge ··················\
··················\
·········4-50 Evaporative emission control System ··················\
··········7-68
Exhaust emission control system··················\
·················7-69\
Explanation of scheduled maintenance items ···············7-19
Exterior care··················\
··················\
··················\
·············7-61
Flat tire (with spare tire) ··················\
··················\
············6-13
Changing tires··················\
··················\
··················\
········6-14
Compact spare tire ··················\
··················\
··················\
·6-19
Jack and tools ··················\
··················\
··················\
········6-13
Removing and storing the spare tire···········\
·················6-14\
Flat tire (with tire mobility kit) ··················\
··················\
·6-21
Floor mat anchor(s) ··················\
··················\
·················4-11\
6
Fluid Brakes fluid ··················\
··················\
··················\
···········7-28
Washer fluid··················\
··················\
··················\
···········7-29
Front passenger and rear seat 3-point system with combination locking retractor ··················\
··················\
·3-19
Front seat adjustment ··················\
··················\
··················\
·3-4
Fuel filler lid ··················\
··················\
··················\
············4-25
Fuel gauge··················\
··················\
··················\
················4-49
Fuel requirements ··················\
··················\
··················\
······1-3
Fuse/relay panel description ··················\
··················\
······7-55
Fuses ··················\
··················\
··················\
··················\
······7-51 Fuse/relay panel description ··················\
··················\
····7-55
Instrument panel fuse ··················\
··················\
··············7-52
Memory fuse··················\
··················\
··················\
··········7-52
Multi fuse ··················\
··················\
··················\
··············7-54
E
F