check engine KIA OPTIMA PLUG-IN HYBRID 2017 Workshop Manual

IF THE ENGINE WILL NOT START
If engine doesn't turn over or
turns over slowly
1. Be sure the shift lever is in N (Neu‐tral) or P (Park) and the emergency
brake is set.
2. Check the battery connections to be sure they are clean and tight.
3. Turn on the interior light. If the light dims or goes out when you
operate the starter, the battery is
discharged.
4. Check the starter connections to be sure they are securely tightened.
5. Do not push or pull the vehicle to start it. See instructions for L

Jump starting procedure
1. Make sure the booster battery is12-volt and that its negative termi‐ nal is grounded.
2. If the booster battery is in another vehicle, do not allow the vehicles
come in contact.
3. Turn off all unnecessary electrical loads.
4. Connect the jumper cables in the exact sequence shown in the illus‐
tration. First connect one end of a
jumper cable to the positive termi‐
nal of the discharged battery (1),
then connect the other end to the
positive terminal on the booster
battery (2).
Proceed to connect one end of the other jumper cable to the negative
terminal of the booster battery (3),
then the other end to a solid, sta‐
tionary, metallic point (for example,
the engine lifting bracket) away
from the battery (4). Do not con‐
nect it to or near any part that
moves when the engine is cranked.
Do not allow the jumper cables to
contact anything except the correct
battery terminals or the correct
ground. Do not lean over the bat‐ tery when making connections.CAUTION
nBattery cables
Do not connect the jumper cablefrom the negative terminal of thebooster battery to the negative ter‐minal of the discharged battery. Thiscan cause the discharged battery tooverheat and crack, releasing bat‐tery acid.
5. Start the engine of the vehicle with the booster battery and let it run
at 2,000 rpm, then start the engine
of the vehicle with the discharged
battery.
If the cause of your battery discharging is not apparent, we recommend that
the system be checked by an author‐
ized Kia dealer.
Push-starting
Your manual transaxle-equipped vehi‐
cle should not be push-started because it might damage the emission control
system.
Vehicles equipped with automatic
transaxle cannot be push-started.
Follow the directions in L

IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you will experience a loss of power, or hear loud pinging or knock‐
ing, the engine is probably too hot. If
this happens, you should: 1. Turn on the emergency warning flasher and stop in a safe place.
Move the shift lever to P (Park) and
engage the parking brake.
2. If hot steam does not come out from the engine room, carefullyopen the engine room and check
whether the water pump connector
is properly engaged. If the connec‐
tor is not properly engaged, stop
the engine immediately and prop‐
erly engage the connector. Then,
turn the engine on.
3. Turn on the air conditioner.
4. If the L

CAUTION
•Serious loss of coolant indicatesthere is a leak in the cooling sys‐tem and we recommend that thesystem be checked by an author‐ized Kia dealer.
•When the engine overheats fromlow engine coolant, suddenly add‐ing engine coolant may causecracks in the engine. To preventdamage, add engine coolant slowlyin small quantities.
What to do in an emergency
8-08

WARNING
nCarbon monoxide
Carbon monoxide poisoning and suf‐focation is possible if the engine isleft running in a poorly ventilated orunventilated location (such as insidea building).
Distributing the sealant
11. Immediately drive approximately7~10 km (4~6 miles or, about 10
min) to evenly distribute the seal‐
ant in the tire.
CAUTION
Do not exceed a speed of 80 km/h(50 mph). If possible, do not fall be‐low a speed of 20 km/h (12 mph).While driving, if you experience anyunusual vibration, ride disturbanceor noise, reduce your speed anddrive with caution until you cansafely pull off of the side of theroad. Call for road side service ortowing.
(Continued)
(Continued)
When you use the Tire Mobility Kit,the tire pressure sensors and wheelmay be stained by sealant. There‐fore, remove the tire pressure sen‐sors and wheel stained by sealantand we recommend to have it in‐spected by an authorized Kia dealer.
Checking the tire inflation
pressure
0+')
1. After driving approximately 7~10 km (4~6 miles, or about 10
minutes), stop at a suitable loca‐
tion. 2. Connect connection hose (10) of
the compressor directly to the tire
valve.
3. Connect between compressor and the vehicle battery using the cable
and connectors.
4. Adjust the tire inflation pressure to 200 kPa (29 psi). With the ignition
switched on, proceed as follows. -
To increase the inflation pres‐sure: Switch on the compressor,
position I. To check the current
inflation pressure setting, briefly switch off the compressor.
WARNING
Do not let the compressor run formore than 10 minutes, otherwisethe device will overheat and may bedamaged.
-To reduce the inflation pressure:
Press the button (9) on the com‐
pressor.

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8
What to do in an emergency

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

Wiper blades...............................................................................9-36Blade inspection.................................................................... 9-36
Blade replacement................................................................ 9-36
Battery........................................................................................9-39 For best battery service...................................................... 9-39
Battery capacity label.......................................................... 9-40
Battery recharging................................................................9-41
Reset items............................................................................ 9-41
Tires and wheels....................................................................... 9-43 Tire care.................................................................................. 9-43
Recommended cold tire inflation pressures..................... 9-43
Checking tire inflation pressure.......................................... 9-44
Tire rotation........................................................................... 9-45
Wheel alignment and tire balance...................................... 9-46
Tire replacement................................................................... 9-46
Wheel replacement............................................................... 9-47
Tire traction........................................................................... 9-48
Tire maintenance.................................................................. 9-48
Tire sidewall labeling............................................................ 9-48
Low aspect ratio tire ........................................................... 9-51
Fuses........................................................................................... 9-52 Inner panel fuse replacement............................................. 9-53
Engine compartment fuse replacement........................... 9-54
Fuse/relay panel description............................................... 9-56
Light bulbs.................................................................................. 9-70 Bulb replacement precaution.............................................. 9-70
Light bulb position (front)................................................... 9-72
Light bulb position (rear)..................................................... 9-73
Light bulb position (side)......................................................9-73
Headlamp (HID type) bulb replacement............................ 9-74 Headlamp (low beam) bulb replacement.......................... 9-74
Headlamp (high beam) bulb replacement......................... 9-75
Headlamp (high/low beam) LED replacement..................9-76
Front turn signal lamp bulb replacement......................... 9-76
Position lamp + DRL (LED type) bulb replacement..........9-77
Side repeater lamp bulb replacement............................... 9-77
Rear turn signal lamp bulb replacement........................... 9-77
Stop and tail lamp (LED type) bulb replacement............. 9-79
Back-up lamp bulb replacement........................................ 9-79
License plate lamp bulb replacement................................ 9-80
High mounted stop lamp bulb replacement..................... 9-81
Map lamp bulb replacement................................................ 9-81
Vanity mirror lamp bulb replacement............................... 9-81
Room lamp bulb replacement............................................. 9-82
Personal lamp bulb replacement........................................ 9-83
Glove box lamp bulb replacement...................................... 9-83
Trunk lamp bulb replacement............................................. 9-83
Appearance care........................................................................9-85 Exterior care.......................................................................... 9-85
Interior care........................................................................... 9-89
Emission control system ........................................................ 9-91 Crankcase emission control system.................................. 9-91
Evaporative emission control system............................... 9-91
Exhaust emission control system...................................... 9-91


9

(Continued)
•Working under the hood with theengine running is dangerous. It be‐comes even more dangerous whenyou wear jewelry or loose clothing.These can become entangled inmoving parts and result in injury.Therefore, if you must run the en‐gine while working under the hood,make certain that you remove alljewelry (especially rings, bracelets,watches, and necklaces) and allneckties, scarves, and similar looseclothing before getting near theengine or cooling fans.
CAUTION
•Do not put heavy objects or applyexcessive force on top of the en‐gine cover (if equipped) or fuel re‐lated parts.
•When you inspect the fuel system(fuel lines and fuel injection devi‐ces), we recommend that you con‐tact an authorized kia dealer.
(Continued)
(Continued)
•Do not drive long time with the en‐gine cover (if equipped) removed.
•When checking the engine room,do not go near fire.Fuel, washer fluid, etc. are flam‐mable oils that may cause fire.
•Before touching the battery, igni‐tion cables and electrical wiring,you should disconnect the battery"-" terminal. You may get an elec‐tric shock from the electric cur‐rent.
•When you remove the interior trimcover with a flat bed (-) driver, becareful not to damage the cover.
•Be careful when you replace andclean bulbs to avoid burns or elec‐trical shock.

9-05
9
Maintenance

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

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