2019 KIA OPTIMA PHEV engine

• 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

83
Maintenance
ENGINE COMPARTMENT
OJFH075161L
■ ■Gasoline Engine (Nu 2.0L - GDI)❈ The actual engine compartment in the vehicle may differ from the illustration. 1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil dipstick
4. Brake fluid reservoir
5. Air cleaner
6. Fuse box
7. Inverter coolant reservoir
8. Radiator cap
9. Windshield washer fluid reservoir

85
Maintenance
(Continued)
• Wash the undercarriage of yourvehicle regularly during the win-
ter and whenever your vehicle has
been exposed to such salts or
chemicals.
• Do a thorough washing of the undercarriage at the end of the
winter.
• Use professional service techni- cians or governmental inspection
stations to annually inspect for
corrosion.
• Immediately seek an inspection of your vehicle if you become visual-
ly aware of corrosion flaking or
scaling or if you become aware of
a change in vehicle performance,
such as soft or spongy brakes, flu-
ids leaking, impairment of direc-
tional control, suspension noises
or rattling metal straps.
NHTSA further advises that after
a vehicle is 7 years old, it is essen-
tial that you take these indicated
maintenance steps to ensure that
you protect yourself from unsafe
corrosion conditions.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.

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.

87
Maintenance
At least monthly:
Check the coolant level in theengine coolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
At least twice a year (i.e., every Spring and Fall) :
Check the radiator, heater and air conditioning hoses for leaks or
damage.
Check the windshield washer spray and wiper operation. Clean
the wiper blades with clean cloth
dampened with washer fluid.
Check the headlight alignment.
Check the muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
At least once a year :
Clean the body and door drainholes.
Lubricate the door hinges and check the hood hinges.
Lubricate the door and hood locks and latches.
Lubricate the door rubber weather- strips.
Check the air conditioning system.
Inspect and lubricate automatic transaxle linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

Maintenance
88
SCHEDULED MAINTENANCE SERVICE
Follow the Normal Maintenance
Schedule if the vehicle is usually
operated where none of the following
conditions apply. If any of the following
conditions apply, follow the
Maintenance Under Severe Usage
Conditions.
Repeatedly driving short distancesof less than 5miles (8 km) in nor-
mal temperature or less than 10
miles (16 km) in freezing tempera-
ture.
Extensive engine idling or low speed driving for long distances.
Driving on rough, dusty, muddy, unpaved, graveled or salt-spread
roads.
Driving in areas using salt or other corrosive materials or in very cold
weather.
Driving in heavy dust conditions.
Driving in heavy traffic areas. Driving on uphill, downhill, or
mountain roads repeatedly.
Towing a trailer or using a camper on roof rack.
Driving for patrol car, taxi, other commercial use of vehicle towing.
Driving over 106 mph (170 km/h).
Frequently driving in stop-and-go conditions.If your vehicle is operated in any ofthe prior listed conditions, you shouldinspect, replace or refill more fre-quently, using the severe usagemaintenance schedule instead of thenormal usage maintenance sched-ule.

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
12
8
Maintenance Under Severe Usage Conditions - Non Turbo Model
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEMMAINTENANCE
OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Engine oil and engine oil filterNu 2.0L GDIREvery 3,750 miles (6,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Air cleaner filterRMore frequentlyC, E
Spark plugs RMore frequentlyA, B, F, G, H, I, K
Automatic transmission fluidREvery 60,000 miles (96,000 km)A, C, D, E,
F, G, H, I, J
HSG (Hybrid Starter & Generator) belt
REvery 30,000 miles (48,000 km) or 24 monthsC, D, E, K
IEvery 3,750 miles (6,000 km) or 6 monthsC, D, E, K
Brake discs and pads, calipers and rotorsIMore frequentlyC, D, E, G, H
Parking brake (Foot Type)IMore frequentlyC, D, G, H
Steering gear rack, linkage and bootsIMore frequentlyC, D, E, F, G
Suspension ball jointsIMore frequentlyC, D, E, F, G