engine coolant KIA Optima Hybrid 2013 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.

Your vehicle at a glance
42
ENGINE COMPARTMENT
1. Sub relay box ....................................7-55
2. Engine coolant reservoir ...................7-24
3. Windshield washer fluid reservoir .....7-29
4. Radiator cap .....................................7-26
5. Engine oil dipstick .............................7-22
6. Engine oil filler cap ...........................7-22
7. Brake fluid reservoir ..........................7-28
8. Air cleaner.........................................7-30
9. Fuse box ...........................................7-52
10. Inverter coolant reservoir ................7-24
* : if equipped
* The actual engine room in the vehicle may differ from the illustration.
OYFH071001

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.

53
Driving your vehicle
Before entering vehicle
• Be sure that all windows, outside mir-ror(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,
with the exact interval depending on the
fluid. Further details are provided in
Section 7, “Maintenance”.
Before starting
Close and lock all doors.
Position the seat so that all controls areeasily 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 ignition switch 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 famil-
iar with your vehicle and its equipment.
BEFORE DRIVING
WARNING - Distracted
driving
Focus on the road while driving.
The driver's primary responsibility
is in the safe and legal operation of
the vehicle. Use of any handled
devices, other equipment or vehicle
systems that distract the drive
should not be used during vehicle
operation.
WARNING - Check
surrounding
Always check the surrounding
areas near your vehicle for people,
especially children, before putting a
vehicle into D (Drive) or R
(Reverse).

Driving your vehicle
36
5
Highway driving
Tires
Adjust the tire inflation pressures to
specification. Low tire inflation pressures
will result in overheating and possible
failure of the tires.
Avoid using worn or damaged tires which
may result in reduced traction or tire fail-
ure.
Never exceed the maximum tire inflation
pressure shown on the tires.
Driving off-road
Drive carefully off-road because your
vehicle may be damaged by rocks of
roots of trees. Become familiar with the
off-road conditions where you are going
to drive before you begin driving.
Fuel, engine coolant and engine oil
High speed travel consumes more fuel
than urban motoring. Do not forget to
check both the engine coolant and
engine oil.
Drive belt
A loose or damaged drive belt may over-
heat the engine.
WARNING - Under/over
inflated tires
Always check the tires for proper
inflation before driving.
Underinflated or overinflated tires
can cause poor handling, loss of
vehicle control, and sudden tire fail-
ure leading to accidents, injuries,
and even death. For proper tire
pressures, refer to “Tires and
wheels” in section 8.
WARNING - Tire tread
Always check the tire tread before
driving your vehicle. Worn-out tires
can result in loss of vehicle control.
Worn-out tires should be replaced
as soon as possible. For further
information and tread limits, refer
to "Tires and wheels" in section 7.

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.

7
Engine compartment / 7-2
Maintenance services / 7-3
Owner maintenance / 7-5
Scheduled maintenance service / 7-7
Explanation of scheduled maintenance items / 7-19
Engine oil / 7-22
Coolant / 7-24
Brake fluid / 7-28
Washer fluid / 7-29
Parking brake / 7-29
Air cleaner / 7-30
Climate control air filter / 7-31
Wiper blades / 7-32
Battery / 7-35
Tires and wheels / 7-38
Fuses / 7-51
Appearance care / 7-61
Emission control system / 7-68
Maintenance

Maintenance
27
ENGINE COMPARTMENT
OYFH071001
❈The actual engine room in the vehicle may differ from the illustration. 1. Sub relay box
2. Engine coolant reservoir
3. Windshield washer fluid reservoir
4. Radiator cap
5. Engine oil dipstick
6. Engine oil filler cap
7. Brake fluid reservoir
8. Air cleaner
9. Fuse box
10. Inverter coolant