2019 KIA OPTIMA HYBRID fuel

• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-44
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 8-44
• All season tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-51
• Summer tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-51
• Snow tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-\
51
• Tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52\
• Radial-ply tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
• Low aspect ratio tire . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-54
• Inner panel fuse replacement . . . . . . . . . . . . . . . . . . . 8-56
• Engine compartment fuse replacement. . . . . . . . . . . 8-57
• Fuse/relay panel description. . . . . . . . . . . . . . . . . . . . 8-60
Light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-74
• Bulb replacement precaution . . . . . . . . . . . . . . . . . . . 8-74
• Light bulb position (front) . . . . . . . . . . . . . . . . . . . . . 8-75
• Light bulb position (rear) . . . . . . . . . . . . . . . . . . . . . . 8-75
• Light bulb position (side) . . . . . . . . . . . . . . . . . . . . . . 8-76
• Headlamp (Low beam) bulb replacement (Headlamp Type A) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-76
• Headlamp (High beam) bulb replacement (Headlamp Type A) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-78
• Headlamp (Low/High beam,LED type) bulb replacement (Headlamp Type B) . . . . . . . . . . . . . . . 8-79
• Front turn signal lamp bulb replacement . . . . . . . . 8-79 • Position lamp + DRL (LED type) bulb
replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-80
• Side repeater lamp bulb replacement . . . . . . . . . . . . 8-81
• Rear turn signal lamp bulb replacement . . . . . . . . . 8-81
• Stop and tail lamp (LED type) bulb replacement . . 8-82
• Back-up lamp bulb replacement . . . . . . . . . . . . . . . . 8-83
• License plate lamp bulb replacement . . . . . . . . . . . . 8-84
• High mounted stop lamp bulb replacement . . . . . . . 8-84
• Map lamp bulb replacement . . . . . . . . . . . . . . . . . . . 8-85
• Vanity mirror lamp bulb replacement . . . . . . . . . . . 8-85
• Room lamp bulb replacement . . . . . . . . . . . . . . . . . . 8-86
• Personal lamp bulb replacement . . . . . . . . . . . . . . . . 8-86
• Glove box lamp bulb replacement . . . . . . . . . . . . . . . 8-87
• Trunk lamp bulb replacement . . . . . . . . . . . . . . . . . . 8-87Appearance care . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-88
• Exterior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-88
• Interior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-93
Emission control system . . . . . . . . . . . . . . . . . . . . 8-96
• Crankcase emission control system . . . . . . . . . . . . . . 8-96
• Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery) system . . . . . 8-96
• Exhaust emission control system . . . . . . . . . . . . . . . . 8-97
California perchlorate notice . . . . . . . . . . . . . . . . 8-99
8

Maintenance
68
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 transaxle occurs,
check the transaxle fluid level.
Check the automatic transaxle 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.

89
Maintenance
Normal Maintenance Schedule - Non Turbo Model
The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the
frequency of service is determined by whichever occurs first.
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Engine oil and engine oil
filterNu 2.0L GDIRRRRRRRRRRRRRRR
Fuel additives *1Add every 7,500 miles (12,000 km) or 12 months
Air cleaner filterIIIRIIIRIIIRIII
Spark plugsNu 2.0L GDIReplace every 97,500 miles (156,000 km)
Rotate tiresRotate every 7,500 miles (12,000 km)
Climate control air filterRRRRRRRRRRRRRRR
Vacuum hoseIIIIIIIIIIIIIII
Coolant (Engine/Inverter)At first, replace at 120,000 miles (192,000 km) or 10 years,
after that, replace every 30,000 miles (48,000 km) or 24 months
MAINTENANCE INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your authorized Kia dealer along with information on how to use them. Do not mix other additives.

Maintenance
10
8
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
HSG belt *2IIIRIIIRIIIRIII
Brake lines, hoses and connectionsIIIIIIIIIIIIIII
Brake discs and padsIIIIIIIIIIIIIII
Steering gear rack, linkage and bootsIIIIIIIIIIIIIII
Driveshaft and bootsIIIIIIIIIIIIIII
Suspension ball jointsIIIIIIIIIIIIIII
Air conditioner compressor/refrigerantIIIIIIIIIIIIIII
Exhaust systemIIIIIIIIIIIIIII
Cooling system---I-I-I-I-I-I-
Automatic transmission fluidNo check, No service required
Vapor hose and fuel filler cap-I-I-I-I-I-I-I-
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
Normal Maintenance Schedule - Non Turbo Model (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
2: Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation and replace if necessary. If HSG belt noise occurred, readjust HSG belt tension before replace.

811
Maintenance
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Fuel tank air filter *3-I-I-I-I-I-I-I-
Fuel lines, hoses and connections---I---I---I---
Parking brake (Foot Type)-I-I-I-I-I-I-I-
Brake fluid-I-I-I-I-I-I-I-
MAINTENANCEINTERVALS
MAINTENANCE
ITEM
Normal Maintenance Schedule - Non Turbo Model (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
3: Fuel tank air filter are considered to generally be maintenance free but periodic inspection is recommended under this main- tenance schedule depending on fuel quality.

Maintenance
14
8
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
HSG (Hybrid starter & genera-
tor) belt
The HSG belt should be changed at
the intervals specified in the mainte-
nance schedule.
Fuel filter (for gasoline)
Kia gasoline vehicles are equipped a
lifetime fuel filter that is integrated
with the fuel tank. Regular mainte-
nance or replacement is generally
not needed but depends on fuel
quality. If there are some important
fuel related problems like fuel flow
restriction, surging, loss of power,
hard starting problem etc, fuel filter
inspection or replace is needed.
The fuel filter be Inspected or
replaced by an authorized Kia dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Kia dealer
replace any damaged or leaking
parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapor hose or fuel filler cap is cor-
rectly replaced.
Vacuum crankcase ventilation
hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.

839
Maintenance
TIRES AND WHEELS
Tire care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
Recommended cold tire infla-
tion pressures
All tire pressures (including the
spare) should be checked when the
tires are cold. “Cold Tires” means the
vehicle has not been driven for at
least three hours or driven less than
one mile (1.6 km).
Recommended pressures must be
maintained for the best ride, top vehi-
cle handling, and minimum tire wear.
For recommended inflation pressure
refer to “Tire and wheels” in chapter
9.All specifications (sizes and pres-
sures) can be found on a label
attached to the driver’s side center
pillar.OJF085012
WARNING - Tire underin-
flation
Inflate your tires consistent with
the instructions provided in this
manual. Regularly check the tire
inflation pressure, and correct it
as needed: at least twice a
month and before any long trips
on the road. If you fail to
observe this precaution, you
may be driving on underinflated
tires, which may not only com-
promise your vehicle's driving
stability, but also lead to tire
damage and the risk of an acci-
dent. This risk is much higher
on hot days and when driving
for long periods at high speeds.

Maintenance
40
8
Underinflation also results in
excessive wear, poor handling and
reduced fuel economy. Wheel
deformation also is possible. Keep
your tire pressures at the proper
levels. If a tire frequently needs
refilling, have it checked by an
authorized Kia dealer.
Overinflation produces a harsh ride, excessive wear at the center
of the tire tread, and a greater pos-
sibility of damage from road haz-
ards.
Warm tires normally exceed rec- ommended cold tire pressures by 4
to 6 psi (28 to 41 kPa). Do not
release air from warm tires to
adjust the pressure or the tires will
be underinflated.
Be sure to reinstall the tire inflation valve caps. Without the valve cap,
dirt or moisture could get into the
valve core and cause air leakage. If
a valve cap is missing, install a
new one as soon as possible.Tire pressure
Always observe the following:
Check tire pressure when the tiresare cold. (After vehicle has been
parked for at least three hours or
hasn't been driven more than one
mile (1.6 km) since startup.)
Check the pressure of your spare tire each time you check the pres-
sure of other tires.
Never overload your vehicle. Be careful not to overload a vehicle
luggage rack if your vehicle is
equipped with one.
Checking tire inflation pres-
sure
Check your tires once a month or
more.
Also, check the tire pressure of the
spare tire.
How to check
Use a good quality gauge to check
tire pressure. You cannot tell if your
tires are properly inflated simply by
looking at them. Radial tires may
look properly inflated even when
they're underinflated.
Check the tire's inflation pressure
when the tires are cold. - "Cold"
means your vehicle has been sitting
for at least three hours or driven no
more than 1 mile (1.6 km).
WARNING - Tire Inflation
Overinflation or underinflation
can reduce tire life, adversely
affect vehicle handling, and
lead to sudden tire failure. This
could result in loss of vehicle
control and potential injury.