2020 KIA OPTIMA ESP

Maintenance
7
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 7-5
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
• Owner maintenance schedule . . . . . . . . . . . . . . . . . . . 7-6
Scheduled maintenance service. . . . . . . . . . . . . . . . 7-8
Explanation of scheduled maintenance items . . . 7-14
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 7-17
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 7-18
• Changing the engine oil and filter . . . . . . . . . . . . . . . 7-19
Engine maintenance mode (for plug-in Hybrid). . 7-20
• Starting Engine Maintenance Mode . . . . . . . . . . . . . 7-20
• Stopping Engine Maintenance Mode. . . . . . . . . . . . . 7-20
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21\
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 7-21
• Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Inverter coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 7-25
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 7-26
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 7-27
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
Climate control air filter . . . . . . . . . . . . . . . . . . . . 7-30
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-\
36
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 7-36
• Recharging the battery . . . . . . . . . . . . . . . . . . . . . . . . 7-37
• Reset items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38\
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
7-39
• Recommended cold tire inflation pressures . . . . . . . 7-39
• Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40
• Checking tire inflation pressure. . . . . . . . . . . . . . . . . 7-40
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 7-42
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 7-44

Maintenance
47
MAINTENANCE SERVICES
You should exercise the utmost care
to prevent damage to your vehicle
and injury to yourself whenever per-
forming any maintenance or inspec-
tion procedures.
Should you have any doubts con-
cerning the inspection or servicing of
your vehicle, we strongly recom-
mend that you have an authorized
Kia dealer perform this work.
An authorized Kia dealer has factory-
trained technicians and genuine Kia
parts to service your vehicle proper-
ly. For expert advice and quality serv-
ice, see an authorized Kia dealer.
Inadequate, incomplete or insuffi-
cient servicing may result in opera-
tional problems with your vehicle that
could lead to vehicle damage, an
accident, or personal injury.Owner’s responsibility
✽ ✽NOTICE
Maintenance Service and Record
Retention are the owner's responsi-
bility.
You should retain documents that
show proper maintenance has been
performed on your vehicle in accor-
dance with the scheduled mainte-
nance service charts shown on the
following pages. You need this infor-
mation to establish your compliance
with the servicing and maintenance
requirements of your vehicle war-
ranties.
Detailed warranty information is
provided in your Warranty &
Consumer Information manual.
Repairs and adjustments required as
a result of improper maintenance or
a lack of required maintenance are
not covered.
We recommend you have your vehi-
cle maintained and repaired by an
authorized Kia dealer. An authorized
Kia dealer meets Kia’s high service
quality standards and receives tech-
nical support from Kia in order to pro-
vide you with a high level of service
satisfaction.

75
Maintenance
Owner maintenance precau-
tions
Improper or incomplete service may
result in problems. This section gives
instructions only for the maintenance
items that are easy to perform.
As explained earlier in this section,
several procedures can be done only
by an authorized Kia dealer with spe-
cial tools.
✽ ✽NOTICE
Improper owner maintenance dur-
ing the warranty period may affect
warranty coverage. For details, read
the separate Warranty & Consumer
Information manual provided with
the vehicle. If you're unsure about
any servicing or maintenance proce-
dure, have it done by an authorized
Kia dealer.
WARNING- Maintenance
work
Do not wear jewelry or loose
clothing while working under
the hood of your vehicle with
the engine running. These items
can become entangled in mov-
ing parts, if you must run the
engine while working under the
hood, make certain that you
remove all jewelry (especially
rings, bracelets, watches, and
necklaces) and all neckties,
scarves, and similar loose
clothing before getting near the
engine or cooling fans.WARNING- Touching metal parts
Do not touch metal parts
(including strut bars) while the
engine is operating or hot.
Doing so could result in serious
bodily injury. Turn the engine off
and wait until the metal parts
cool down to perform any main-
tenance work on the vehicle.

717
Maintenance
Exhaust pipe and muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks, dete-
rioration, or damage. Start the
engine and listen carefully for any
exhaust gas leakage. Tighten con-
nections or replace parts as neces-
sary.
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in
the steering wheel.
Check the linkage for bends or dam-
age. Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air conditioning refrigerant
Check the air conditioning lines and
connections for leakage and dam-
age.When checking engine oil, engine
coolant, brake fluid, and washer fluid,
always be sure to clean the area
around any filler plug, drain plug, or
dipstick before checking or draining
any lubricant or fluid. This is espe-
cially important in dusty or sandy
areas and when the vehicle is used
on unpaved roads. Cleaning the plug
and dipstick areas will prevent dirt
and grit from entering the engine and
other mechanisms that could be
damaged.
CHECKING FLUID LEVELS

745
Maintenance
2. Tire size designation
A tire’s sidewall is marked with a tire
size designation. You will need this
information when selecting replace-
ment tires for your car. The following
explains what the letters and num-
bers in the tire size designation
mean.
Example tire size designation:
(These numbers are provided as an
example only; your tire size designa-
tor could vary depending on your
vehicle.)
P205/55R16 89H
P - Applicable vehicle type (tiresmarked with the prefix “P’’ are
intended for use on passenger
vehicles or light trucks; however,
not all tires have this marking).
205 - Tire width in millimeters.
55 - Aspect ratio. The tire’s section height as a percentage of its
width.
R - Tire construction code (Radial).
16 - Rim diameter in inches. 89 - Load Index, a numerical code
associated with the maximum
load the tire can carry.
H - Speed Rating Symbol. See the speed rating chart in this section
for additional information.
Wheel size designation
Wheels are also marked with impor-
tant information that you need if you
ever have to replace one. The follow-
ing explains what the letters and
numbers in the wheel size designa-
tion mean.
Example wheel size designation:
6.0JX16
6.0 - Rim width in inches.
J - Rim contour designation.
16 - Rim diameter in inches. Tire speed ratings
The chart below lists many of the dif-
ferent speed ratings currently being
used for passenger vehicles. The
speed rating is part of the tire size
designation on the sidewall of the
tire. This symbol corresponds to that
tire's designed maximum safe oper-
ating speed.
S 180 km/h (112 mph)
T 190 km/h (118 mph)
H 210 km/h (130 mph) V 240 km/h (149 mph)Z Above 240 km/h (149 mph)
Maximum Speed
Speed
Rating
Symbol

747
Maintenance
Tread wear
The tread wear grade is a compara-
tive rating based on the wear rate of
the tire when tested under controlled
conditions on a specified govern-
ment test course. For example, a tire
graded 150 would wear one-and-a-
half times (1½) as well on the gov-
ernment course as a tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.Tires degrade over time, even when
they are not being used. Regardless
of the remaining tread, we recom-
mend that tires be replaced after
approximately six (6) years of normal
service. Heat caused by hot climates
or frequent high loading conditions
can accelerate the aging process.
These grades are molded on the
side-walls of passenger vehicle tires.
The tires available as standard or
optional equipment on your vehicles
may vary with respect to grade.
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tires ability to
stop on wet pavement as measured
under controlled conditions on spec-
ified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perform-
ance.
The traction grade assigned to this
tire is based on straight-ahead brak-
ing traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction char-
acteristics.

755
Maintenance
Inner panel fuse replacement
1. Turn the engine start/stop buttonto the OFF position and all other
switches off.
2. Open the fuse panel cover.
If the switch is located in the “OFF”
position, a caution indicator will be
displayed in the cluster. 3. Pull the suspected fuse straight
out. Use the removal tool provided
on the engine compartment fuse
panel cover.
4. Check the removed fuse; replace it if it is blown.
Spare fuses are provided in theengine compartment fuse panel.
5. Push in a new fuse of the same rating, and make sure it fits tightly
in the clips.
If it fits loosely, consult an authorized
Kia dealer.
OJFH075023
OJF075022
CAUTION - Random
wiring prohibited when
retrofitting equipment
Use of random wiring in the vehicle might cause danger dueto failure and damage of thevehicle’s performance. Usingrandom wires especially whenretrofitting the AVN or theftalarm system, remote enginecontrol, car phone or radio,might damage the vehicle orcause fire.
CAUTION - Remodeling
Prohibited
Do not rewire your vehicle inany way as doing so may affectthe performance of several safe-ty features in your vehicle.Rewiring your vehicle may alsovoid your warranty and causeyou to be responsible for anysubsequent vehicle damagewhich may result.

Maintenance
74
7
✽ ✽
NOTICE
• If the light bulb or lamp connector
is removed while the lamp is still
on, the fuse box's electronic sys-
tem may log it as a malfunction.
Therefore, a lamp malfunction
incident may be recorded as a
Diagnostic Trouble Code (DTC) in
the fuse box.
• It is normal for an operating lamp to flicker momentarily. This is due
to a stabilization function of the
vehicle’s electronic control device.
If the lamp lights up normally
after momentarily blinking, then
it is functioning as normal.
However, if the lamp continues to
flicker several times or turns off
completely, there may be an error
in the vehicle’s electronic control
device. Please have the vehicle
checked by an authorized Kia
dealer immediately.
✽ ✽ NOTICE
You can find moisture inside the lens
of lamps after a car wash or driving
in the rain. It is a natural event
caused by the temperature differ-
ence between the inside and the out-
side of the lamp and does not mean a
problem with its functions. The
moisture inside the lamp would dis-
appear if you drive the vehicle with
the headlamp turned on, however,
the level at which the moisture is
removed may differ depending on
the size/location/condition of the
lamp. If the moisture continues to
stay inside the lamp, have the vehicle
checked by an authorized Kia dealer.
If you don’t have the necessary tools,
the correct bulbs and the expertise,
consult an authorized Kia dealer. In
many cases, it is difficult to replace
vehicle light bulbs because other
parts of the vehicle must be removed
before you can get to the bulb. This is
especially true if you have to remove
the headlamp assembly to get to the
bulb(s).
Removing/installing the headlamp
assembly can result in damage to
the vehicle.
If non-genuine parts or substandard
bulbs are used, it may lead to blow-
ing a fuse or other wiring damages.
Do not install extra lamps or LEDs to
the vehicle. If additional lights are
installed, it may lead to lamp mal-
functions and flickering. Additionally,
the fuse box and other writing may
be damaged.