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Maintenance
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7
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked peri-
odically for proper tension and
adjusted as necessary.
Fuel filter (for gasoline)
This gasoline powered vehicle is
equipped with a lifetime fuel filter that
is integrated with the fuel tank.
Regular maintenance or replace-
ment is not needed ; however, the
quality of fuel used may impact the
frequency of maintenance needed. If
there are any fuel related problems
like fuel flow restriction, surging, loss
of power, hard starting problem etc,
fuel filter inspection or replacement
may be needed.
The fuel filter be Inspected or
replaced by an authorized Kia dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Kia dealer
replace any damaged or leaking
parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at the intervals
specified in the maintenance sched-
ule. Make sure that a new vapor hose
or fuel filler cap is installed correctly.
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745
Maintenance
TIRES AND WHEELS
Tire care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
Recommended cold tire infla-
tion pressures
All tire pressures (including the
spare) should be checked when the
tires are cold. “Cold Tires” means the
vehicle has not been driven for at
least three hours or driven less than
one mile (1.6 km).
Recommended pressures must be
maintained for the best ride, top vehi-
cle handling, and minimum tire wear.
For recommended inflation pressure
refer to “Tire and wheels” in chapter
8.All specifications (sizes and pres-
sures) can be found on a label
attached to the driver’s side center
pillar.
Failure to maintain specified pres-
sure may result in excessive wear,
poor handling, reduced fuel econo-
my, deformation of tire and/or wheel,
harsh ride conditions, possibility for
additional damage from road haz-
ards, or result in tire failure.OJF085012
WARNING - Tire underin-
flation
Inflate your tires consistent with
the instructions provided in this
manual. Severe underinflation
(10 psi (70 kPa) or more) can
lead to severe heat build-up,
causing blowouts, tread separa-
tion and other tire failures that
can result in the loss of vehicle
control. This risk is much higher
on hot days and when driving
for long periods at high speeds.
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Maintenance
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7
Temperature -A, B & C
The temperature grades are A (the
highest), B and C representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. The grade C cor-
responds to a level of performance
which all passenger car tires must
meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher
levels of performance on the labora-
tory test wheel than the minimum
required by law. Tire terminology and definitions
Air Pressure:
The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
kilopascal (kPa) or pounds per
square inch (psi).
Accessory Weight: This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, automatic transmis-
sion, power seats, and air condition-
ing.
Aspect Ratio: The relationship of a
tire's height to its width.
Belt: A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.
Bead: The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire: A pneumatic tire in
which the plies are laid at alternate
angles less than 90 degrees to the
centerline of the tread. Cold Tire Pressure:
The amount of
air pressure in a tire, measured in
kilopascals (kPa) or pounds per
square inch (psi) before a tire has
built up heat from driving.
Curb Weight: This means the weight
of a motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil and
coolant, but without passengers and
cargo.
DOT Markings: A code molded into
the sidewall of a tire signifying that
the tire is in compliance with the U.S.
Department of Transportation motor
vehicle safety standards. The DOT
code includes the Tire Identification
Number (TIN), an alphanumeric des-
ignator which can also identify the
tire manufacturer, production plant,
brand and date of production.
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767
Maintenance
Fuse NameFuse ratingCircuit Protected
MODULE 710AAround View Unit, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Rear Seat
Warmer Control Module
MODULE 510A
A/C Control Module, Electro Chromic Mirror, Crash Pad Switch, Head Lamp LH/RH, Auto Head Lamp
Leveling Device Module, A/V & Navigation Head Unit, Fuel Lid & Trunk Open Switch, Shift Lever Indicator,
Driver IMS Module, Driver IMS Module, Front Air Ventilation Seat Control Module, Front Seat Warmer
Control Module, Rear Seat Warmer Control Module
MODULE 610ABCM, Smart Key Control Module
A/CON10AA/C Control Module, E/R Junction Block (Blower Relay)
START10A[W/O Smart Key & IMMO.] ICM Relay Box (Burglar Alarm Relay)
[With Smart Key / IMMO.] Transmission Range Switch, PCM (G4KH/G4KJ)
A/BAG15ASRS Control Module, Passenger Occupant Detection
MODULE 310ABCM, ATM Shift Lever, Stop Lamp Switch, DBL Unit, Keyboard, A/C Control Module
MODULE 410AConsole Switch, Blind Spot Detection Radar LH/RH, Smart Cruise Control Unit, AEB Module, Lane Keeping
Assist Module
INTERIOR LAMP10ATrunk Room Lamp, Ignition Key Ill. & Door Warning Switch, Glove Box Lamp, Driver/Passenger Smart Key
Outside Handle, Front Vanity Lamp Switch LH/RH, Overhead Console Lamp, Center Room Lamp, Center
Personal Lamp, Rear Personal Lamp LH/RH, Driver/Passenger Scuff Lamp
MDPS10AMDPS Unit (Column/Rack), Steering Angle Sensor
IG125APCB Block (Fuse - TCU 2, ABS 3, ECU 3, VACUUM PUMP 2)
MODULE 910AImmobilizer Module, Smart Key Control Module
Instrument panel (Driver’s side fuse panel)
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Maintenance
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7
Fuse NameFuse ratingCircuit Protected
WASHER15AMultifunction Switch (Wiper Low & Washer Switch)
MODULE 810AA/C Control Module, Driver/Passenger Door Module
CLUSTER10AInstrument Cluster (IG1)
MULTI MEDIA15AAudio, A/V & Navigation Head Unit, Keyboard
HEATED
STEERING15ABCM (Steering Wheel Heated)
MODULE 110AConsole Switch, Key Solenoid, Driver/Passenger Door Module, BCM
DR LOCK20ADoor Lock Relay, Door Unlock Relay
SMART KEY15ASmart Key Control Module
A/BAG IND10AInstrument Cluster (Air Bag IND. Power)
TRUNK10ATrunk Lid Relay, Fuel Filler & Trunk Open Switch, Trunk Lid Motor, ICM Relay Box (Fuel Filler Open Relay)
SUNROOF 220ASunroof Control Unit (Roller)
MEMORY 110AInstrument Cluster, A/C Control Module, Data Link Connector, Wireless Charger, Driver IMS Module, Rain
Sensor, ICM Relay Box (Outside Mirror Folding/Unfolding Mirror Relay), Security Indicator, Auto Light &
Photo Sensor, Driver/Passenger Door Module, Electro Chromic Mirror
S/HEATER RR25ARear Seat Warmer Control Module
SUNROOF 120ASunroof Control Unit (Glass)
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![KIA OPTIMA 2020 Features and Functions Guide Maintenance
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Fuse NameFuse ratingCircuit Protected
MULTI
FUSE
MDPS 180AMDPS Unit (Column)
COOLING FAN 260A[G4KH/G4FJ] Cooling Fan1 Relay, Cooling Fan2 Relay
COOLINGFAN 150A[G4KJ] Cooling Fan1 Rel KIA OPTIMA 2020 Features and Functions Guide Maintenance
72
7
Fuse NameFuse ratingCircuit Protected
MULTI
FUSE
MDPS 180AMDPS Unit (Column)
COOLING FAN 260A[G4KH/G4FJ] Cooling Fan1 Relay, Cooling Fan2 Relay
COOLINGFAN 150A[G4KJ] Cooling Fan1 Rel](/manual-img/2/55014/w960_55014-524.png)
Maintenance
72
7
Fuse NameFuse ratingCircuit Protected
MULTI
FUSE
MDPS 180AMDPS Unit (Column)
COOLING FAN 260A[G4KH/G4FJ] Cooling Fan1 Relay, Cooling Fan2 Relay
COOLINGFAN 150A[G4KJ] Cooling Fan1 Relay
B+ 350ASmart Junction Block (IPS 2 (IPS 5), IPS 3 (IPS 6), IPS 7, IPS 8)
REAR
HEATED50ARear Heated Relay
DCT140A[G4FJ-DCT] TCM
BLOWER40ABlower Relay
POWER
OUTLET 140APower Outlet Relay
IG230A[W/O Smart Key] Start Relay, Ignition Switch, [With Smart Key] Start Relay, PCB Block (IG2 Relay)
MDPS 2100AMDPS Unit (Rack)
B+160ASmart Junction Block (Fuse - SUNROOF1, SUNROOF2, S/HEATER RR, P/SEAT DRV, P/SEAT PASS,
P/WINDOW LH, P/WINDOW RH, TRUNK)
B+560APCB Block (Engine Control Relay, Fuse - TCU1, ECU2, FUEL PUMP, HORN, WIPER1)
B+260ASmart Junction Block (IPS 1, IPS 4, Fuse - AMP, S/HEATER FRT)
ABS 140AESC Module
IG140A[W/O Smart Key] Ignition Switch, [With Smart Key] PCB Block (IG1/ACC Relay)
DCT 240A[G4FJ-DCT] TCM
ABS 230AESC Module, Multipurpose Check Connector
Engine room compartment fuse panel
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773
Maintenance
Fuse NameFuse ratingCircuit Protected
FUSE
B+440ASmart Junction Block (Leak Current Autocut Device Fuse - INTERIOR LAMP, MEMORY1, MULTI
MEDIA, Fuse - DOOR LOCK, MODULE1, SMART KEY, BRAKE SWITCH)
E-CVVT 140AE-CVVT Relay
VACUUMPUMP 120AVacuum Pump
DEICER20ADeicer Relay
AMS10ABattery Sensor
E-CVVT 220APCM
A/CON10AA/C Control Module
E-CVVT 320APCM
HEATED
MIRROR10AA/C Control Module, Driver/Passenger Power Outside Mirror, ECM
WIPER 210ABCM, PCM/ECM
H/LAMP HI20AHead Lamp HI Relay
FUEL PUMP20AFuel Pump Relay
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![KIA OPTIMA 2020 Features and Functions Guide Maintenance
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7
Fuse NameFuse ratingCircuit Protected
FUSE
ECU 120APCM/ECM
SENSORS 210A
E/R Junction Block (Fuel Pump Relay, Cooling Fan 1/2 Relay)
[G4KJ] Oil Control Valve (Exhaust), Purge Control S KIA OPTIMA 2020 Features and Functions Guide Maintenance
74
7
Fuse NameFuse ratingCircuit Protected
FUSE
ECU 120APCM/ECM
SENSORS 210A
E/R Junction Block (Fuel Pump Relay, Cooling Fan 1/2 Relay)
[G4KJ] Oil Control Valve (Exhaust), Purge Control S](/manual-img/2/55014/w960_55014-526.png)
Maintenance
74
7
Fuse NameFuse ratingCircuit Protected
FUSE
ECU 120APCM/ECM
SENSORS 210A
E/R Junction Block (Fuel Pump Relay, Cooling Fan 1/2 Relay)
[G4KJ] Oil Control Valve (Exhaust), Purge Control Solenoid Valve, Variable Intake Solenoid Valve, Canister
Close Valve
[G4KH] Oil Control Valve (Exhaust), Purge Control Solenoid Valve, RCV Control Solenoid Valve, Canister Close Valve
[G4FJ] Oil Control Valve #1/#2, Purge Control Solenoid Valve, RCV Control Solenoid Valve, Canister Close Va l ve
TCU 215ATransmission Range Switch, TCM
ABS 310AESC Module, Multipurpose Check Connector
POWER
OUTLET 320ARear Power Outlet
B/UP LAMP10APCM/TCM, Transmission Range Switch, Audio, Electro Chromic Mirror, Rear Combination Lamp (IN)
LH/RH
SENSOR 115AOxygen Sensor (Up/Down)
IGN COIL20AIgnition Coil #1/#2/#3/#4
ECU 210APCM/ECM
TCU 110APCM/TCM
VACUUM PUMP 210AVacuum Pump, Vacuum Switch
ECU 310APCM/ECM
POWER
OUTLET 220AFront Power Outlet #1
HORN20AHorn Relay, ICM Relay Box (Burglar Alarm Horn Relay)
WIPER 130AWiper Power Relay
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