2017 KIA OPTIMA PLUG-IN HYBRID maintenance schedule

ECONOMICAL OPERATION
Your vehicle's fuel economy depends mainly on your style of driving, where
you drive and when you drive.
Each of these factors affects how
many kilometers (miles) you can get from a liter (gallon) of fuel. To operate
your vehicle as economically as possi‐
ble, use the following driving sugges‐ tions to help save money in both fuel
and repairs: • Drive smoothly. Accelerate at a mod‐ erate rate. Do not make "jack-rabbit"
starts or full-throttle shifts and maintain a steady cruising speed. Do
not race between stop lights. Try to
adjust your speed to the traffic so
you do not have to change speeds
unnecessarily. Avoid heavy traffic whenever possible.
Always maintain a safe distance from
other vehicles so you can avoid un‐
necessary braking. This also reduces
brake wear.
• Drive at a moderate speed. The fast‐ er you drive, the more fuel your vehi‐cle uses. Driving at a moderate
speed, especially on the highway, is
one of the most effective ways to re‐
duce fuel consumption. • Do not "ride" the brake or clutch ped‐
al. This can increase fuel consumption
and also increase wear on these com‐
ponents. In addition, driving with your
foot resting on the brake pedal may
cause the brakes to overheat, which
reduces their effectiveness and may lead to more serious consequences.
• Take care of your tires. Keep them inflated to the recommended pres‐
sure. Incorrect inflation, either too
much or too little, results in unneces‐
sary tire wear. Check the tire pres‐ sures at least once a month.
• Be sure that the wheels are aligned correctly. Improper alignment can re‐
sult from hitting curbs or driving too
fast over irregular surfaces. Poor alignment causes faster tire wear
and may also result in other prob‐
lems as well as greater fuel con‐
sumption.
• Keep your vehicle in good condition. For better fuel economy and reducedmaintenance costs, maintain your ve‐
hicle in accordance with the mainte‐
nance schedule in Chapter 9, Mainte‐
nance. If you drive your vehicle in se‐
vere conditions, more frequent main‐ tenance is required (see Chapter 9,
Maintenance for details). • Keep your vehicle clean. For maxi‐
mum service, your vehicle should be
kept clean and free of corrosive ma‐ terials. It is especially important that
mud, dirt, ice, etc. not be allowed to
accumulate on the underside of the
vehicle. This extra weight can result
in increased fuel consumption and al‐ so contribute to corrosion.
• Travel lightly. Do not carry unneces‐ sary weight in your vehicle. Weight
reduces fuel economy.
• Do not let the engine idle longer than necessary. If you are waiting (and notin traffic), turn off your engine and
restart only when you're ready to go.
• Remember, your vehicle does not re‐ quire extended warm-up. After the
engine has started, allow the engine
to run for 10 to 20 seconds prior to placing the vehicle in gear. In very cold
weather, however, give your engine a
slightly longer warmup period.
• Do not "lug" or "over-rev" the engine. Lugging is driving too slowly in too
high a gear resulting engine bucking.
If this happens, shift to a lower gear. Over-revving is racing the engine be‐
yond its safe limit. This can be avoi‐
ded by shifting at the recommended
speeds.

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7
Driving your vehicle

Engine compartment................................................................ 9-03
Maintenance services............................................................... 9-04Owner’s responsibility.......................................................... 9-04
Owner maintenance precautions....................................... 9-04
Owner maintenance................................................................. 9-06 Owner maintenance schedule.............................................9-06
Scheduled maintenance service............................................. 9-08 Scheduled maintenance service precaution..................... 9-08
Normal maintenance schedule - for gasoline en‐ gine [for Europe (except Russia)].......................................9-09
Normal maintenance schedule - for gasoline en‐ gine [for Europe (except Russia)] (Continued)................. 9-10
Maintenance under severe usage conditions - for gasoline engine [for Europe (except Russia)]...................9-12
Normal maintenance schedule - for gasoline en‐ gine [except Europe (including Russia)]............................ 9-14
Normal maintenance schedule - for gasoline en‐ gine [except Europe (including Russia)] (Continued).......9-15
Maintenance under severe usage conditions - for gasoline engine [except Europe (including Russia)]........ 9-18
Explanation of scheduled maintenance items..................... 9-21 Engine oil and filter............................................................... 9-21
HSG (hybrid starter & generator) belt.............................. 9-21
Fuel filter (for gasoline)....................................................... 9-21
Fuel lines, fuel hoses and connections.............................. 9-21
Vapor hose (for gasoline engine) and fuel filler cap........9-21
Vacuum crankcase ventilation hoses ................................9-21
Air cleaner filter.....................................................................9-21
Spark plugs (for gasoline engine)....................................... 9-21
Cooling system...................................................................... 9-22 Coolant (Engine/Inverter).................................................... 9-22
Automatic transaxle fluid.................................................... 9-22
Brake hoses and lines........................................................... 9-22
Brake fluid ............................................................................. 9-22
Parking brake ........................................................................ 9-22
Brake discs, pads, calipers and rotors............................... 9-22
Suspension mounting bolts................................................. 9-22Steering gear box, linkage & boots/lower arm
ball joint.................................................................................. 9-22
Drive shafts and boots......................................................... 9-22
Air conditioning refrigerant................................................. 9-23
Engine oil.....................................................................................9-24 Checking the engine oil level................................................9-24
Changing the engine oil and filter...................................... 9-24
Coolant........................................................................................ 9-26 Checking the coolant level................................................... 9-26
Engine coolant....................................................................... 9-27
Inverter coolant..................................................................... 9-27
Recommended coolant.........................................................9-28
Changing the coolant............................................................ 9-29
Brake fluid ................................................................................. 9-30 Checking the brake fluid level............................................. 9-30
Washer fluid............................................................................... 9-31 Checking the washer fluid level.......................................... 9-31
Parking brake ............................................................................ 9-32 Checking the parking brake................................................. 9-32
Air cleaner.................................................................................. 9-33 Filter replacement.................................................................9-33
Climate control air filter........................................................... 9-35 Filter inspection..................................................................... 9-35
Maintenance

9

MAINTENANCE SERVICES
You should exercise the utmost care to
prevent damage to your vehicle and in‐
jury to yourself whenever performing any maintenance or inspection proce‐
dures.
Inadequate, incomplete or insufficient
servicing may result in operational problems with your vehicle that could
lead to vehicle damage, an accident, or
personal injury.
Owner’s responsibility
NOTICE
Maintenance Service and Record Re‐
tention are the owner's responsibili‐
ty.
We recommend in general that you
have your vehicle serviced by an au‐ thorized Kia dealer.
You should retain documents that show
proper maintenance has been per‐
formed on your vehicle in accordance with the scheduled maintenance serv‐
ice charts shown on the following pa‐
ges. You need this information to establish
your compliance with the servicing and
maintenance requirements of your ve‐
hicle warranties.
Detailed warranty information is provi‐ ded in your Warranty & Maintenance
book.
Repairs and adjustments required as a
result of improper maintenance or a lack of required maintenance are not
covered when your vehicle is covered bywarranty.
Owner maintenance precautions
Improper or incomplete service may re‐
sult in problems. This section gives in‐ structions only for the maintenance
items that are easy to perform.
NOTICE
Improper owner maintenance during
the warranty period may affect
warranty coverage. For details, read
the separate Warranty & Mainte‐
nance book provided with the vehi‐
cle. If you're unsure about any serv‐
icing or maintenance procedure, we
(Continued)
(Continued)
recommend that the system be
serviced by an authorized Kia dealer.
WARNING
nMaintenance work
•Performing maintenance work ona vehicle can be dangerous. Youcan be seriously injured while per‐forming some maintenance proce‐dures. If you lack sufficient knowl‐edge and experience or the propertools and equipment to do thework, we recommend that thesystem be serviced by an author‐ized Kia dealer.
(Continued)
Maintenance
9-04

OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per‐
formed at the frequencies indicated to help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer as soon as possible.
These Owner Maintenance Checks are
generally not covered by warranties
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 the coolant reservoir.
• Check the windshield washer fluid level.
• Look for low or under-inflated tires.
WARNING
Be careful when checking your en‐gine coolant level when the engine ishot. Scalding hot coolant and steam
(Continued)
(Continued)
may blow out under pressure. Thiscould cause burns or other seriousinjury.
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 steering
effort or looseness in the steering
wheel, or change in its straight-
ahead position.
• Notice if your vehicle constantly turns slightly or L

SCHEDULED MAINTENANCE SERVICE
Scheduled maintenance service
precaution
Follow the Normal Maintenance Sched‐
ule 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. • Repeated driving short distance of less than 8 km (5 miles) in normaltemperature or less than 16 km
(10 miles) in freezing temperature
• Extensive engine idling or low speed driving for long distances
• Driving on rough, dusty, muddy, un‐ paved, graveled or salt-spread roads
• Driving in areas using salt or other corrosive materials or in very cold
weather
• Driving in heavy dust condition
• Driving in heavy traffic area
• Driving on uphill, downhill, or moun‐ tain road repeatedly
• Towing a trailer or using a camper, or roof rack
• Driving as a patrol car, taxi, other commercial use of vehicle towing
• Driving over 170 km/h (106 mph) • Frequently driving in stop-and-go
condition
If your vehicle is operated under the
above conditions, you should inspect,
replace or refill more frequently than the following Normal Maintenance
Schedule. After the periods or distance
shown in the chart, continue to follow the prescribed maintenance intervals.
Maintenance
9-08

NORMAL MAINTENANCE SCHEDULE - FOR GASOLINE ENGINE [FOR EUROPE (EXCEPT RUSSIA)]
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.
NO.ITEMREMARK
*1 Coolant (Engine / Inverter) When adding coolant, use only deionized water or soft water for your vehicle
and never mix hard water in the coolant filled at the factory. An improper
coolant mixture can result in serious malfunction or engine damage.
*2 Engine oil and engine oil filter Check the engine oil level and leak every 500 km (350 miles) or before start‐ing a long trip.
*3 Fuel additives (Gasoline) Kia recommends that you use unleaded gasoline which has an octane rating
of RON (Research Octane Number) 95 / AKI (Antiknock Index) 91 or higher
(for Europe) or Octane Rating of RON (Research Octane Number) 91 / AKI(Antiknock Index) 87 or higher (except Europe).
For customers who do not use good quality gasolines including fuel additives
regularly, and have problems starting or the engine does not run smoothly,
one bottle of additives added to the fuel tank at every 15,000 km (for Eu‐rope, Australia and New Zealand)/10,000 km (except Europe, Australia andNew Zealand).
Additives are available from your authorized Kia dealer along with informa‐
tion on how to use them. Do not mix other additives.
*4 HSG (Hybrid Starter & Generator) belt Inspect HSG belt for evidence of cuts, crocks, excessive wear or oil saturation
and replace if necessary. If drive belt noise occurred, readjust drive belt ten‐
sion before replace.
*5 Spark plug For your convenience, it can be replaced prior to it's interval when you domaintenance of other items.



9-09
9
Maintenance

NORMAL MAINTENANCE SCHEDULE - FOR GASOLINE ENGINE [FOR EUROPE (EXCEPT RUSSIA)]
(CONTINUED)
MAINTENANCE INTERVALS
Normal Maintenance Schedule - For Gasoline Engine [For Europe (Except Russia)]
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
MAINTENANCE ITEM
Air cleaner filter I I R I I R I I
Air conditioner compressor/refrigerant I I I I I I I I Automatic transaxle fluid No check, No service required
Battery condition I I I I I I I I
Brake discs and pads I I I I I I I I
Brake lines, hoses and connections I I I I I I I IBrake fluid I R I R I R I R
Climate control air filter R R R R R R R R
Coolant (Engine / Inverter) *1
At first, Replace 210,000 km (140,000 miles) or 120 months after that,
Replace every 30,000 km (20,000 miles) or 24 months
Cooling system At first, Inspect 60,000 km (40,000 miles) or 48 months after that, Inspect
every 30,000 km (20,000 miles) or 24 months
Drive shaft and boots I I I I I I I I Engine oil and engine oil fil‐ ter *2
Nu 2.0L GDI R R R R R R R R
Exhaust system - I - I - I - I
Maintenance
9-10

MAINTENANCE INTERVALS
Normal Maintenance Schedule - For Gasoline Engine [For Europe (Except Russia)]
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
MAINTENANCE ITEM
Fuel additives (Gasoline) *3
Add every 15,000 km (10,000 miles) or 12 months
Fuel filter (Gasoline) - I - R - I - R
Fuel lines, hoses and connections - - - I - - - IFuel tank air filter - I - R - I - R
HSG (Hybrid Starter & Generator) belt *4
I I I I I I R I
Parking brake - I - I - I - I
Spark plugs *5
Nu 2.0L GDI Replace every 150,000 km (100,000 miles) or 120 months
Steering gear rack, linkage and boots I I I I I I I I
Suspension ball joints I I I I I I I I
Tire (pressure & tread wear) I I I I I I I I
Vacuum hoses and crankcase ventilation hoses I I I I I I I I
Vapor hose and fuel filler cap - - - I - - - I
I: Inspect and if necessary, adjust, correct, clean or replace.
R: Replace or change.


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9
Maintenance