2018 KIA OPTIMA PHEV oil level

831
Maintenance
BRAKE FLUID
Checking the brake fluid level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX (Maximum) and MIN
(Minimum) marks on the side of the
reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination.If the level is low, add fluid to the
MAX (Maximum) level. The level will
fall with accumulated mileage. This is
a normal condition associated with
the wear of brake linings. If the fluid
level is excessively low, have the
brake system checked by an author-
ized Kia dealer.
Use only the specified brake fluid.
(Refer to “Recommended lubricantsand capacities” in chapter 9.)
Never mix different types of fluid.
In the event the brake system
requires frequent additions of fluid,
the vehicle should be inspected by
an authorized Kia dealer.
When changing and adding brake
fluid, handle it carefully. Do not let it
come in contact with your eyes. If
brake fluid should come in contact
with your eyes, immediately flush
them with a large quantity of fresh
tap water. Have your eyes examined
by a doctor as soon as possible.
Brake fluid, which has been exposed
to open air for an extended time
should never be used as its quality
cannot be guaranteed. It should be
disposed of properly.
OJFH075166CAUTION - Brake fluid
Do not allow brake fluid to con-tact the vehicle's body paint, aspaint damage will result.
CAUTION - Proper fluid
Only use brake fluid in brakesystem. Small amounts ofimproper fluids (such as engineoil) can cause damage to thebrake system.

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.

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