coolant level KIA OPTIMA HYBRID 2018 User Guide

827
Maintenance
COOLANT
The high-pressure cooling system
has a reservoir filled with year round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year: at
the beginning of the winter season,
and before traveling to a colder cli-
mate.Checking the coolant level Turn the engine off and wait until itcools 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 cool-
ing 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 operating, do not remove the radiator cap or
the drain plug while the engine and
radiator are hot. Hot coolant and
steam may still blow out under
pressure, causing serious injury.
The engine coolant and/or inverter
coolant level is influenced by the
hybrid system temperature. Before
checking or refilling the engine
coolant and/or inverter coolant,
turn the hybrid vehicle off.
WARNING
Removing radiator
cap
Never attempt to remove the
radiator cap while the engine is
operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal injury
from escaping hot coolant or
steam.
CAUTION - Radiator cap
Never attempt to remove theradiator cap while the engine isoperating or hot. Doing somight lead to cooling systemand engine damage.

Maintenance
28
8
Engine coolant
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated 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
specified coolant to provide protec-
tion against freezing and corrosion.
Bring the level to F, but do not over-
fill. If frequent additions are required,
see an authorized Kia dealer for a
cooling system inspection.
Inverter coolant
The coolant level should be filled
between MAX and MIN marks on the
side of the coolant reservoir when
the engine is cool.
If the coolant level is low, add enough
specified coolant to provide protec-
tion against freezing and corrosion.
Bring the level to MAX, but do not
overfill. If frequent additions are
required, see an authorized Kia deal-
er for a cooling system inspection.
OJF075006OJFH075186L
WARNING- Cooling fan
Use caution when
working near the
blade of the cooling
fan. The electric
motor (cooling fan) is
controlled by engine coolant
temperature, refrigerant pres-
sure and vehicle speed. it may
sometimes operate even when
the engine is not running.

Maintenance
32
8
WASHER FLUID
Checking the washer fluid
level
The reservoir is translucent so that
you can check the level with a quick
visual inspection.
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
WARNING- Flammable
fluid
Do not allow the washer fluid to
come in contact with open
flames or sparks. The windshield
washer fluid reservoir is flamma-
ble under certain circumstances.
This can result in a fire.WARNING- Windshield fluid
Do not drink the windshield
washer fluid. The windshield
washer fluid is poisonous to
humans and animals.
WARNING- Coolant
Do not use radiator coolant or antifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when sprayed
on the windshield and may
cause loss of vehicle control.
OJF075009

Maintenance
54
8
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 definitions
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
kilopascals (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: A code molded into
the sidewall of a tire signifying that
the tire is in compliance with the U.S.
Department of Transportation motor
vehicle safety standards. 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.

Index
4I
Center console storage . . . . . . . . . . . . . . . . . . . . . . . . 4-133
Central door lock switch. . . . . . . . . . . . . . . . . . . . . . . . 4-15
Chains - Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-96
Checking the amount of air conditionerrefrigerant and compressor lubricant . . . . . . . . . . . 4-127
Checking tire inflation pressure . . . . . . . . . . . . . . . . . . 8-46
Child restraint system . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32 Selecting a Child Restraint System (CRS) . . . . . . . 3-33
Installing a Child Restraint System (CRS) . . . . . . . 3-36
Securing a child restraint with the LATCHanchors system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
"Securing a child restraint seatwith" "Tether Anchor" "system" . . . . . . . . . . . . . . . . . . . 3-39
Child-protector rear door lock . . . . . . . . . . . . . . . . . . . 4-16
Clean air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-\
132
Climate control air filter . . . . . . . . . . . . . . . . . . . . . . . . 8-36 Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36
Checking the amount of air conditioner refrigerant and compressor lubricant . . . . . . . . . . . . . . . . . . . . . . 4-127
Closing the sunroof. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Clothes hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-140
Combined instrument, see instrument cluster . . . . . . . 4-51
consumer assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 8-27
Coolant(Engine/Inverter) . . . . . . . . . . . . . . . . . . . . . . . 8-27 Checking the coolant level . . . . . . . . . . . . . . . . . . . . 8-27
Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . 8-30
Cooling fluid, see engine coolant . . . . . . . . . . . . . . . . . 8-27 Crankcase emission control system . . . . . . . . . . . . . . 8-102
Cruise control system . . . . . . . . . . . . . . . . . . . . . . . . . . 6-52
To set cruise control speed . . . . . . . . . . . . . . . . . . . . 6-53
To increase cruise control set speed . . . . . . . . . . . . . 6-53
To decrease the cruising speed . . . . . . . . . . . . . . . . . 6-54
To temporarily accelerate with the cruise control on . . 6-54
To cancel cruise control . . . . . . . . . . . . . . . . . . . . . . 6-54
To resume cruising speed at more than approximately 20mph (30 km/h) . . . . . . . . . . . . . . 6-55
To turn cruise control off . . . . . . . . . . . . . . . . . . . . . 6-55
Cup holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-135
Curtain air bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63
Dashboard illumination, see instrument panel illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Dashboard, see instrument cluster . . . . . . . . . . . . . . . . 4-51
Day/night rearview mirror . . . . . . . . . . . . . . . . . . . . . . 4-46
Daytime running light . . . . . . . . . . . . . . . . . . . . . . . . 4-100
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . 5-8 FCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . 5-8
Defogging (Windshield) . . . . . . . . . . . . . . . . . . . . . . . 4-129
Defroster (Rear window) . . . . . . . . . . . . . . . . . . . . . . 4-114
Defrosting (Windshield) . . . . . . . . . . . . . . . . . . . . . . . 4-129
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-\
2
Disarmed stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
D

I5
Index
Display illumination, see instrument panelillumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Displays, see instrument cluster . . . . . . . . . . . . . . . . . . 4-51
Door locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-\
13 from outside the vehicle . . . . . . . . . . . . . . . . . . . . . . 4-13
from inside the vehicle . . . . . . . . . . . . . . . . . . . . . . . 4-14
Central door lock switch . . . . . . . . . . . . . . . . . . . . . 4-15
Child-protector rear door lock . . . . . . . . . . . . . . . . . 4-16
Drinks holders, see cup holders . . . . . . . . . . . . . . . . . 4-135
Drive mode integrated control system . . . . . . . . . . . . . 6-73 Hybrid vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-73
ECO (Active ECO) mode. . . . . . . . . . . . . . . . . . . . . 6-73
SPORT mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-74
Driver position memory system . . . . . . . . . . . . . . . . . . 3-11
Driver's and passenger's front air bag . . . . . . . . . . . . . . 3-58
Driver's seat belt warning . . . . . . . . . . . . . . . . . . . . . . . 3-22
Driving at night . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Driving in flooded areas . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Driving in the rain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93
Driving off-road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
ECO mode ( Active ECO system) . . . . . . . . . . . . . . . . 6-75
ECO mode (Drive mode integrated control system) . . 6-73
Economical operation . . . . . . . . . . . . . . . . . . . . . . . . . . 6-89
Electric parking brake (EPB) . . . . . . . . . . . . . . . . . . . . 6-21
Electric power steering . . . . . . . . . . . . . . . . . . . . . . . . . 4-42 Electrical equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
Electrochromic mirror (ECM) . . . . . . . . . . . . . . . . . . . 4-47
Electronic stability control (ESC) . . . . . . . . . . . . . . . . 6-34
Emergency fuel filler lid release(Hybrid) . . . . . . . . . . . 4-32
Emergency fuel filler lid release(Plug-in Hybrid) . . . . 4-35
Emergency starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Jump starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Emergency trunk safety release . . . . . . . . . . . . . . . . . . 4-18
Emergency while driving . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Emission control system . . . . . . . . . . . . . . . . . . . . . . . 8-102 Crankcase emission control system . . . . . . . . . . . . 8-102
Evaporative emission control (including ORVR:Onboard Refueling Vapor Recovery) system. . . . 8-102
Exhaust emission control system . . . . . . . . . . . . . . 8-103
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 9-2
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Engine coolant temperature gauge . . . . . . . . . . . . . . . . 4-53
Engine maintenance mode(plug-in hybrid) . . . . . . . . . 8-26 Starting Engine Maintenance Mode. . . . . . . . . . . . . 8-26
Stopping Engine Maintenance Mode . . . . . . . . . . . . 8-26
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-\
24 Checking the engine oil level . . . . . . . . . . . . . . . . . . 8-24
Changing the engine oil and filter . . . . . . . . . . . . . . 8-25
Engine overheats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
E

Index
6I
Engine start/stop button . . . . . . . . . . . . . . . . . . . . . . . . . 6-6Illuminated engine start/stop button. . . . . . . . . . . . . . 6-6
Engine start/stop button position . . . . . . . . . . . . . . . . 6-6
Starting the hybrid system . . . . . . . . . . . . . . . . . . . . . 6-8
Engine start/stop button illumination . . . . . . . . . . . . . . . 6-6
Engine start/stop button position . . . . . . . . . . . . . . . . . . 6-6
Engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery) system . . . . . 8-102
Exhaust emission control system . . . . . . . . . . . . . . . . 8-103
Explanation of scheduled maintenance items . . . . . . . 8-20 Engine oil and filter . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Hybrid starter & generator belt . . . . . . . . . . . . . . . . 8-20
Fuel filter (for gasoline) . . . . . . . . . . . . . . . . . . . . . . 8-20
Fuel lines, fuel hoses and connections . . . . . . . . . . . 8-20
Vapor hose and fuel filler cap . . . . . . . . . . . . . . . . . 8-20
Vacuum crankcase ventilation hoses . . . . . . . . . . . . 8-20
Air cleaner filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Coolant (Engine / Inverter) . . . . . . . . . . . . . . . . . . . 8-21
Automatic transaxle fluid . . . . . . . . . . . . . . . . . . . . . 8-21
Brake hoses and lines . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
Brake discs, pads, calipers and rotors . . . . . . . . . . . 8-22
Exhaust pipe and muffler . . . . . . . . . . . . . . . . . . . . . 8-23
Suspension mounting bolts . . . . . . . . . . . . . . . . . . . 8-23 Steering gear box, linkage & boots/
lower arm ball joint . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Drive shafts and boots . . . . . . . . . . . . . . . . . . . . . . . 8-23
Air conditioning refrigerant . . . . . . . . . . . . . . . . . . . 8-23
Exterior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
Exterior overview (Front) . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Exterior overview (Rear) . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Flat tires, see tire mobility kit. . . . . . . . . . . . . . . . . . . . 7-16
Floor mat anchor(s) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-140
Fluid Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Folding the outside rearview mirror . . . . . . . . . . . . . . . 4-50
"Front passenger andrear seat 3-point system withcombination locking retractor" . . . . . . . . . . . . . 3-25
Front passenger's seat belt warning . . . . . . . . . . . . . . . 3-23
Front seat adjustment (manual) . . . . . . . . . . . . . . . . . . . 3-7
Front seat adjustment (power) . . . . . . . . . . . . . . . . . . . . 3-8
Front turn signal lamp bulb replacement . . . . . . . . . . . 8-85
Fuel filler lid (Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . 4-29 Emergency fuel filler lid release . . . . . . . . . . . . . . . 4-32
Fuel filler lid (Plug-in Hybrid) . . . . . . . . . . . . . . . . . . . 4-33 Emergency fuel filler lid release . . . . . . . . . . . . . . . 4-35
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55\
F

I7
Index
Fuel requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 8-60Inner panel fuse replacement . . . . . . . . . . . . . . . . . 8-61
Engine compartment fuse replacement . . . . . . . . . . 8-63
Fuse/relay panel description. . . . . . . . . . . . . . . . . . . 8-66
Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 4-53 Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
Engine coolant temperature gauge . . . . . . . . . . . . . . 4-53
Hybrid System Gauge . . . . . . . . . . . . . . . . . . . . . . . 4-54
Hybrid Battery SOC(State of Charge) Gauge . . . . . 4-54
Plug-in hybrid mode indicator . . . . . . . . . . . . . . . . . 4-55
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Outside Temperature Gauge . . . . . . . . . . . . . . . . . . . 4-57
Glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13\
3
Glove box lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-112
Glove box lamp bulb replacement . . . . . . . . . . . . . . . . 8-93
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Hazard warning flasher . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Hazardous driving conditions . . . . . . . . . . . . . . . . . . . . 6-91
Headlamp (HID type) bulb replacement (For Hybrid) . 8-82
Headlamp (High beam) bulb replacement (For Hybrid) . 8-84Headlamp (Low beam) bulb replacement (For Hybrid) .
8-83
Headlight (Headlamp) escort function . . . . . . . . . . . . 4-113
Headlight leveling device . . . . . . . . . . . . . . . . . . . . . . 4-106
Headlight position. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-101
Headrest (rear) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Headrest(front) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Heated steering wheel. . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
HEV powertrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
High - beam operation . . . . . . . . . . . . . . . . . . . . . . . . 4-102
High Beam Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-103
High mounted stop lamp bulb replacement . . . . . . . . . 8-90
Highway driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Hill-start assist control (HAC) . . . . . . . . . . . . . . . . . . . 6-39
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 4-27
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 4-45
Hybrid Battery SOC(State of Charge) Gauge . . . . . . . 4-54
Hybrid System Gauge. . . . . . . . . . . . . . . . . . . . . . . . . . 4-54
Hybrid vehicle (Drive mode integrated control system) . 6-73
If an accident occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
Important safety precautions . . . . . . . . . . . . . . . . . . . . . 3-2
Indicator Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-90
Inside rearview mirror . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51 Instrument Cluster Control. . . . . . . . . . . . . . . . . . . . 4-52
LCD Display Control . . . . . . . . . . . . . . . . . . . . . . . . 4-52
H
G
I