boot KIA OPTIMA PHEV 2018 User Guide

Maintenance
16
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Normal Maintenance Schedule (CONT.)
120,000 miles (192,000 km) or 96 months
❑ Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect brake fluid
❑Inspect fuel cap, fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect vapor hose and fuel filler cap
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace air cleaner filter
❑Replace engine oil and filter
(120,000 miles (192,000 km) or 192 months)
❑Replace HSG belt *3
(120,000 miles (192,000 km) or 96 months)
❑Replace engine coolant (First, 120,000 miles (192,000 km) or
120 months after every 30,000 miles (48,000 km) or 24 months)
(Continued)
*1Fuel tank air filter are considered to be maintenance free but periodic inspec-
tion is recommended for this maintenance schedule depends on fuel quality.
*
3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
127,500 miles (204,000 km) or 102 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect HSG belt *3(127,500 miles (204,000 km) or 204 months)
❑Replace engine oil and filter
(127,500 miles (204,000 km) or 204 months)
❑ Add fuel additive *4 (127,500 miles (204,000 km) or 204 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
(Continued)
❑Replace inverter coolant (First, 120,000 miles (192,000 km) or
120 months after every 30,000 miles (48,000 km) or 24 months)
❑ Add fuel additive *4 (120,000 miles (192,000 km) or 192 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))

817
Maintenance
Normal Maintenance Schedule (CONT.)
135,000 miles (216,000 km) or 108 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(135,000 miles (216,000 km) or 216 months)
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace engine oil and filter
(135,000 miles (216,000 km) or 216 months)
❑ Add fuel additive *4 (135,000 miles (216,000 km) or 216 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
142,500 miles (228,000 km) or 114 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(142,500 miles (228,000 km) or 228 months)
❑Inspect vacuum hose
❑Replace engine oil and filter
(142,500 miles (228,000 km) or 228 months)
❑ Add fuel additive *4 (142,500 miles (228,000 km) or 228 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
*3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

Maintenance
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Normal Maintenance Schedule (CONT.)
150,000 miles (240,000 km) or 120 months
❑ Inspect HSG belt *3(150,000 miles (240,000 km) or 240 months)
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect brake fluid
❑Inspect fuel cap, fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect vapor hose and fuel filler cap
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace air cleaner filter
❑Replace engine oil and filter
(150,000 miles (240,000 km) or 240 months)
(Continued)
(Continued)
❑Replace engine coolant (First, 120,000 miles (192,000 km) or
120 months after every 30,000 miles (48,000 km) or 24 months)
❑Replace inverter coolant (First, 120,000 miles (192,000 km) or
120 months after every 30,000 miles (48,000 km) or 24 months)
❑ Add fuel additive *4 (150,000 miles (240,000 km) or 240 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
No check, No service required
❑Automatic transmission fluid (if equipped)
*1Fuel tank air filter are considered to be maintenance free but periodic inspec-
tion is recommended for this maintenance schedule depends on fuel quality.
*
3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

819
Maintenance
Maintenance Under Severe Usage Conditions
Severe Driving Conditions
A - Repeatedly driving short distance of less than 5 miles (8 km) in normaltemperature or less than 10 miles (16 km) in freezing temperature
B - Extensive engine idling or low speed driving for long distances
C - Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads
D - Driving in areas using salt or other corrosive materials or in very cold weather
E - Driving in heavy dust condition. F - Driving in heavy traffic area.
G - Driving on uphill, downhill, or mountain roads repeatedly.
H - Towing a trailer or using a camper on roof rack.
I - Driving for patrol car, taxi, other commercial use of vehicle towing.
J - Driving over 106 mph (170 km/h).
K - Frequently driving in stop-and-go conditions.
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 filter REvery 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 plugsRMore frequentlyB, H
Automatic transmission fluidREvery 60,000 miles (96,000 km)A, C, D, E, F, G, H, I, K
HSG (Hybrid Starter & Generator) beltREvery 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
Front brake disc/pads, calipersIMore frequentlyC, D, G, H
Rear brake disc/padsIMore frequentlyC, D, G, F
Parking brakeIMore frequentlyC, D, G, H
Steering gear box, linkage & boots/lower arm ball joint,
upper arm ball jointIMore frequentlyC, D, E, F, G, H, I
Drive shafts and bootsIEvery 7,500 miles (12,000 km) or 6 monthsC, D, E, F, G, H, I, J
Climate control air filter (for evaporator and blower unit)RMore frequentlyC, E
Suspension mounting boltsIMore frequentlyC, D, E, F, G, H, I

823
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
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Fuse NameFuse ratingCircuit Protected
MDPS10AMDPS Unit (Column/Rack)
IG125APCB Block (Fuse - OPCU2/ELECTRICAL WATER PUMP/TCU2/ACTIVE HYDRAULIC BOOTER 3/HEV
ECU2/ECU3)
MODULE 910ASmart Key Control Module
WASHER15AMultifunction Switch (Wiper Low & Washer Switch)
MODULE 810ADriver/Passenger Door Module
CLUSTER10AInstrument Cluster
MULTI MEDIA15AAudio, A/V & Navigation Head Unit, Keyboard
HTD STRG15ABCM (Steering Wheel Heated)
MODULE 110AConsole Switch, Active Air Flap Unit, Gateway, Driver/Passenger Door Module
DR LOCK20ADoor Lock Relay, Door Unlock Relay, ICM Relay Box (Dead Lock Relay)
MEMORY 210ASiren Control Module, Ultrasonic Instrusion Protection Sensor
SMART KEY15ASmart Key Control Module

Maintenance
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Fuse NameFuse ratingCircuit Protected
FUSE
FUEL PUMP20AFuel Pump Relay
ECU 120APCM
SENSORS 210AMass Air Flow Sensor, Fuel Pump Relay, Oil Control Valve #1/#2, Canister Close Valve, Camshaft
Position Sensor #1/#2, Purge Control Solenoid Valve
TCU 2 15ATransaxle Range Switch
ACTIVE
HYDRAULIC BOOTER 310AMultipurpose Check Connector, Integrated Brake Actuation Unit
POWER
OUTLET 320ARear Power Outlet
B/UP LAMP10APCM, Transaxle Range Switch, Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH
OBC10AHEV OBC SIG, INLET
IG3 420AIG3 1 RLY
IG3 110AHEV WATER PUMP
IG3 215AHEV OBC SIG
IG3 310APCU, HPCU, POSITION SW, CLUSTER, BMS EXTN, AVN, IGPM, CHARGER IND

Maintenance
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APPEARANCE CARE
Exterior care
Exterior general caution
It is very important to follow the label
directions when using any chemical
cleaner or polish. Read all warning
and caution statements that appear
on the label.
Finish maintenance
Washing
To help protect your vehicle’s finish
from rust and deterioration, wash it
thoroughly and frequently at least
once a month with lukewarm or cold
water.
If you use your vehicle for off-road
driving, you should wash it after each
off-road trip. Pay special attention to
the removal of any accumulation of
salt, dirt, mud, and other foreign mate-
rials. Make sure the drain holes in the
lower edges of the doors and rocker
panels are kept clear and clean.
Insects, tar, tree sap, bird droppings,
industrial pollution and similar
deposits can damage your vehicle’s
finish if not removed immediately. Even prompt washing with plain water
may not completely remove all these
deposits. A mild soap, safe for use on
painted surfaces, may be used.
After washing, rinse the vehicle thor-
oughly with lukewarm or cold water.
Do not allow soap to dry on the finish.
After washing the vehicle, test the
brakes while driving slowly to see if
they have been affected by water. If
braking performance is impaired, dry
the brakes by applying them lightly
while maintaining a slow forward
speed.
High-pressure washing
When using high-pressure wash-
ers, make sure to maintain suffi-
cient distance from the vehicle.
Insufficient clearance or excessive
pressure can lead to component
damage or water penetration.
Do not spray the camera, sensors or its surrounding area directly with
a high pressure washer. Shock
applied from high pressure water
may cause the device to not oper-
ate normally.
Do not bring the nozzle tip close to boots (rubber or plastic covers) or
connectors as they may be dam-
aged if they come into contact with
high pressure water.

Index
6I
Engine start/stop button . . . . . . . . . . . . . . . . . . . . . . . . . 6-6Illuminated engine start/stop button. . . . . . . . . . . . . . 6-6
Engine start/stop button position . . . . . . . . . . . . . . . . 6-6
Starting the hybrid system . . . . . . . . . . . . . . . . . . . . . 6-8
Engine start/stop button illumination . . . . . . . . . . . . . . . 6-6
Engine start/stop button position . . . . . . . . . . . . . . . . . . 6-6
Engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery) system . . . . . 8-102
Exhaust emission control system . . . . . . . . . . . . . . . . 8-103
Explanation of scheduled maintenance items . . . . . . . 8-20 Engine oil and filter . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Hybrid starter & generator belt . . . . . . . . . . . . . . . . 8-20
Fuel filter (for gasoline) . . . . . . . . . . . . . . . . . . . . . . 8-20
Fuel lines, fuel hoses and connections . . . . . . . . . . . 8-20
Vapor hose and fuel filler cap . . . . . . . . . . . . . . . . . 8-20
Vacuum crankcase ventilation hoses . . . . . . . . . . . . 8-20
Air cleaner filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Coolant (Engine / Inverter) . . . . . . . . . . . . . . . . . . . 8-21
Automatic transaxle fluid . . . . . . . . . . . . . . . . . . . . . 8-21
Brake hoses and lines . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
Brake discs, pads, calipers and rotors . . . . . . . . . . . 8-22
Exhaust pipe and muffler . . . . . . . . . . . . . . . . . . . . . 8-23
Suspension mounting bolts . . . . . . . . . . . . . . . . . . . 8-23 Steering gear box, linkage & boots/
lower arm ball joint . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Drive shafts and boots . . . . . . . . . . . . . . . . . . . . . . . 8-23
Air conditioning refrigerant . . . . . . . . . . . . . . . . . . . 8-23
Exterior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
Exterior overview (Front) . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Exterior overview (Rear) . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Flat tires, see tire mobility kit. . . . . . . . . . . . . . . . . . . . 7-16
Floor mat anchor(s) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-140
Fluid Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Folding the outside rearview mirror . . . . . . . . . . . . . . . 4-50
"Front passenger andrear seat 3-point system withcombination locking retractor" . . . . . . . . . . . . . 3-25
Front passenger's seat belt warning . . . . . . . . . . . . . . . 3-23
Front seat adjustment (manual) . . . . . . . . . . . . . . . . . . . 3-7
Front seat adjustment (power) . . . . . . . . . . . . . . . . . . . . 3-8
Front turn signal lamp bulb replacement . . . . . . . . . . . 8-85
Fuel filler lid (Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . 4-29 Emergency fuel filler lid release . . . . . . . . . . . . . . . 4-32
Fuel filler lid (Plug-in Hybrid) . . . . . . . . . . . . . . . . . . . 4-33 Emergency fuel filler lid release . . . . . . . . . . . . . . . 4-35
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55\
F