checking oil KIA OPTIMA 2020 Owners Manual

Features of your vehicle
134
4
✽ ✽
NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in
severe conditions such as dusty or
rough roads, more frequent cli-
mate control air filter inspections
and changes are required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized Kia
dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air condi-
tioning is reduced. Overfilling also
has a negative impact on the air con-
ditioning system.
Therefore, if abnormal operation is
found, have the system inspected by
an authorized Kia dealer.
WARNING
The oil and refrigerant in your
vehicle's air conditioning sys-
tem is under very high pres-
sure. If proper service proce-
dures are not followed, an
explosion may result. To reduce
the risk of serious injury or
death, the air conditioning sys-
tem in your vehicle should only
be serviced by trained and cer-
tified technicians.

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
67
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized Kia dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolantreservoir.
Check the windshield washer fluid level.
Look for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound of the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering wheel. Notice any increased steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
Notice if your vehicle constantly turns slightly or “pulls” to one side
when traveling on smooth, level
roads.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
If any slipping or changes in the operation of your transmission
occurs, check the transmission
fluid level.
Check the automatic transmission P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
WARNING- Hot coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot
coolant and steam may blow
out under pressure.
WARNING
When you open the engine
hood, turn the Hybrid system
off. If not, it may result in death
or serious injury because of the
high voltage flow.

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

Maintenance
18
7
ENGINE OIL
Checking the engine oil level
1. Be sure the vehicle is on level
ground.
2. Start the engine and allow it to reach normal operating tempera-
ture.
3. Turn the engine off and wait for a few minutes (about 5 minutes) for
the oil to return to the oil pan.
4. Pull the dipstick out, wipe it clean, and reinsert it fully. 5. Pull the dipstick out again and
check the level. The level should
be between F and L.
If it is near or at L, add enough oil to
bring the level to F.Do not overfill.
Use a funnel to help prevent oil
from being spilled on engine com-
ponents.
Use only the specified engine oil. (Refer to “Recommended lubricantsand capacities” in chapter 8.)
CAUTION - Replacing
engine oil
Do not overfill the engine oil. Itmay damage the engine.
WARNING- Radiator hose
Be very careful not to touch the
radiator hose when checking or
adding the engine oil as it may
be hot enough to burn you.
OJFH075163
■Gasoline Engine (Nu 2.0L GDI)
OJFH075164
■Gasoline Engine (Nu 2.0L GDI)

725
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 8.)
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 the brakesystem. Small amounts ofimproper fluids (such as engineoil) can cause damage to thebrake system.

Index
4I
Limitation of ECO operation ......................................5-97
When ECO is activated ..............................................5-97
Driver Attention Warning (DAW)................................5-125 Resetting the system ................................................5-127
System disabled ........................................................5-127
System malfunction ..................................................5-128
System setting and activation ..................................5-125
ECO system ..................................................................5-98 Limitation of ECO operation ......................................5-99
Plug-in hybrid vehicle ................................................5-98
When ECO is activated ..............................................5-99
Economical operation ..................................................5-130
Emergency starting ..........................................................6-5 Jump starting ................................................................6-5
Push-starting ................................................................6-6
Emission control system ................................................7-99 Crankcase emission control system ............................7-99
Evaporative emission control (including ORVR : Onboard Refueling Vapor Recovery) system ..........7-99
Exhaust emission control system ..............................7-100
Engine ........................................................................\
......8-2
Engine compartment ................................................2-6, 7-3 Engine maintenance mode (for plug-in Hybrid) ..........7-20
Starting Engine Maintenance Mode ..........................7-20
Stopping Engine Maintenance Mode..........................7-20
Engine number ................................................................8-9
Engine oil ......................................................................7-\
18 Changing the engine oil and filter ..............................7-19
Checking the engine oil level ....................................7-18
Engine start/stop button ..................................................5-7 Engine start/stop button position ..................................5-7
Illuminated engine start/stop button ............................5-7
Starting the hybrid system ............................................5-9
Explanation of scheduled maintenance items ..............7-14
Exterior overview ............................................................2-2
Forward Collision-avoidance Assist (FCA) system ......5-43 Brake operation ..........................................................5-47
FCA sensor (Front view camera)................................5-48
FCA warning message and system control ................5-45
Limitation of the system ............................................5-51
System malfunction ....................................................5-49
System setting and activation ....................................5-43
Forward Collision-avoidance Assist (FCA) system - sensor fusion type (front radar+front view camera) ..5-57Brake operation ..........................................................5-61
E
F