2018 KIA OPTIMA PHEV steering

815
Maintenance
105,000 miles (168,000 km) or 84 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(105,000 miles (168,000 km) or 168 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 spark plugs (iridium coated)
❑Replace engine oil and filter
(105,000 miles (168,000 km) or 168 months)
❑ Add fuel additive *4 (105,000 miles (168,000 km) or 168 months
❑Rotate tire position (Every 7,500 miles (12,000 km))
112,500 miles (180,000 km) or 90 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(112,500 miles (180,000 km) or 180 months)
❑Inspect vacuum hose
❑Replace engine oil and filter
(112,500 miles (180,000 km) or 180 months)
❑ Add fuel additive *4 (112,500 miles (180,000 km) or 180 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.
Normal Maintenance Schedule (CONT.)

Maintenance
16
8
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
18
8
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
68
8
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

899
Maintenance
Keep paint and trim in good con-
dition
Scratches or chips in the finish
should be covered with "touch-up"
paint as soon as possible to reduce
the possibility of corrosion. If bare
metal is showing through, the atten-
tion of a qualified body and paint
shop is recommended.
Bird droppings : Bird droppings are
highly corrosive and may damage
painted surfaces in just a few hours.
Always remove bird droppings as
soon as possible.
Don't neglect the interior
Moisture can collect under the floor
mats and carpeting and cause corro-
sion. Check under the mats periodi-
cally to be sure the carpeting is dry.
Use particular care if you carry fertil-
izers, cleaning materials or chemi-
cals in the vehicle.
These should be carried only in prop-
er containers and any spills or leaks
should be cleaned up, flushed with
clean water and thoroughly dried.Interior care
Interior general precautions
Prevent chemicals such as perfume,
cosmetic oil, sun cream, hand clean-
er, and air freshener from contacting
the interior parts because they may
cause damage or discoloration. If
they do contact the interior parts,
wipe them off immediately. If neces-
sary, use a vinyl cleaner, see product
instructions for correct usage.
CAUTION - Electrical
components
Never allow water or other liq-uids to come in contact withelectrical/electronic compo-nents inside the vehicle as thismay damage them.
CAUTION - Leather
When cleaning leather products(steering wheel, seats etc.), useneutral detergents or low alco-hol content solutions. If you usehigh alcohol content solutionsor acid/alkaline detergents, thecolor of the leather may fade orthe surface may get stripped off.