2018 KIA OPTIMA PHEV relay

Features of your vehicle
42
4
Electric power steering (EPS)
The power steering uses a motor to
assist you in steering the vehicle. If
the engine is off or if the power steer-
ing system becomes inoperative, the
vehicle may still be steered, but it will
require increased steering effort.
The motor driven power steering is
controlled by a power steering con-
trol unit which senses the steering
wheel torque and vehicle speed to
command the motor.
The steering becomes heavier as the
vehicle’s speed increases and
becomes lighter as the vehicle’s
speed decreases for optimum steer-
ing control.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the power
steering checked by an authorized
Kia dealer. If the Electric Power Steering
System does not operate normally,
the warning light will illuminate on
the instrument cluster. The steering
wheel may require increased
steering effort. Take your vehicle to
an authorized Kia dealer and have
the vehicle checked as soon as
possible.
When you operate the steering wheel in low temperature, noise
may occur. If temperature rises, the
noise will likely disappear. This is a
normal condition.
When the vehicle is stationary, and the steering wheel is turned all the
way to the left or right continuous-
ly, the steering wheel becomes
harder to turn. The power assist is
limited to protect the motor from
overheating.
As time passes, the steering wheel
will return to its normal condition.
✽ ✽ NOTICE
The following symptoms may occur
during normal vehicle operation:
• The EPS warning light does not
illuminate.
• The steering gets heavy immedi- ately after turning the Engine
Start/Stop button is ON position.
This happens as the system per-
forms the EPS system diagnostics.
When the diagnostics are complet-
ed, the steering wheel will return
to its normal condition.
• A click noise may be heard from the EPS relay after turning the
Engine Start/Stop button is ON or
OFF position.
• A motor noise may be heard when the vehicle is at a stop or at a low
driving speed.
• If the Electric Power Steering System does not operate normally,
the warning light will illuminate on
the instrument cluster. The steer-
ing wheel may become difficult to
control or operate abnormally.
Take your vehicle to an authorized
Kia dealer and have the vehicle
checked as soon as possible. (Continued)
STEERING WHEEL

• All season tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
• Summer tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
• Snow tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-\
57
• Tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57\
• Radial-ply tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
• Low aspect ratio tire(if equipped) . . . . . . . . . . . . . . . 8-58
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-60
• Inner panel fuse replacement . . . . . . . . . . . . . . . . . . . 8-61
• Engine compartment fuse replacement. . . . . . . . . . . 8-63
• Fuse/relay panel description. . . . . . . . . . . . . . . . . . . . 8-66
Light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-80
• Bulb replacement precaution . . . . . . . . . . . . . . . . . . 8-80
• Light bulb position (Front). . . . . . . . . . . . . . . . . . . . . 8-81
• Light bulb position (Rear) . . . . . . . . . . . . . . . . . . . . . 8-81
• Light bulb position (Side) . . . . . . . . . . . . . . . . . . . . . . 8-82
• Headlamp (HID type) bulb replacement(For Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-82
• Headlamp (Low beam) bulb replacement (For Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-83
• Headlamp (High beam) bulb replacement (For Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-84
• Headlamp (Low/High beam,LED type) bulb replacement (For Plug-in Hybrid) . . . . . . . . . 8-85
• Front turn signal lamp bulb replacement . . . . . . . . 8-85
• Position lamp + DRL (LED type) bulb replacement . . 8-86• Side repeater lamp bulb replacement . . . . . . . . . . . . 8-87
• Rear turn signal lamp bulb replacement . . . . . . . . . 8-87
• Stop and tail lamp (LED type) bulb replacement . . 8-88
• Back-up lamp bulb replacement . . . . . . . . . . . . . . . . 8-89
• License plate lamp bulb replacement . . . . . . . . . . . . 8-90
• High mounted stop lamp bulb replacement . . . . . . . 8-90
• Map lamp bulb replacement . . . . . . . . . . . . . . . . . . . 8-91
• Vanity mirror lamp bulb replacement . . . . . . . . . . . 8-91
• Room lamp bulb replacement . . . . . . . . . . . . . . . . . . 8-92
• Personal lamp bulb replacement . . . . . . . . . . . . . . . . 8-92
• Glove box lamp bulb replacement . . . . . . . . . . . . . . 8-93
• Trunk lamp bulb replacement . . . . . . . . . . . . . . . . . 8-93Appearance care . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
• Exterior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
• Interior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
Emission control system . . . . . . . . . . . . . . . . . . . 8-102
• Crankcase emission control system . . . . . . . . . . . . . 8-102
• Evaporative emission control (including ORVR:
Onboard Refueling Vapor Recovery) system . . . . 8-102
• Exhaust emission control system . . . . . . . . . . . . . . . 8-103
California perchlorate notice . . . . . . . . . . . . . . . 8-1058

861
Maintenance
✽
✽NOTICE
• When replacing fuse, turn the
ignition “OFF” and turn off
switches of all electrical devices
then remove battery (-) terminal.
• The actual fuse/relay panel label may differ from equipped items.
Inner panel fuse replacement
1. Turn the engine start/stop button
to the OFF position and all other
switches off.
2. Open the fuse panel cover.
If the switch is located in the “OFF”
position, a caution indicator will be
displayed in the cluster.
OJF075022
WARNING- Electrical Fire
Always ensure replacements
fuses and relays are securely
fastened when installed. Failure
to do so can result in a vehicle
fire.
CAUTION
When replacing a blown fuse or relay, make sure the newfuse or relay fits tightly intothe clips. Failure to tightlyinstall the fuse or relay maycause damage to the wiringand electric systems.
Do not remove fuses, relays and terminals fastened withbolts or nuts. The fuses, relaysand terminals may not be fas-tened correctly which maycause vehicle damage.

Maintenance
66
8
Driver’s side fuse panel
Inside the fuse/relay panel covers,
you can find the fuse/relay label
describing fuse/relay name and
capacity.
✽ ✽
NOTICE
Not all fuse panel descriptions in
this manual may be applicable to
your vehicle. It is accurate at the
time of printing. When you inspect
the fuse panel in your vehicle, refer
to the fuse panel label.
OJFH076169N
OJF075027
Fuse/relay panel description

867
Maintenance
Instrument panel (Driver’s side fuse panel)
Fuse NameFuse ratingCircuit Protected
MODULE 710AAround View Monitor Unit, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module,
Rear Seat Warmer Control Module
MODULE 510AA/C Control Module, Electro Chromic Mirror, Driver IMS Module, Head Lamp LH/RH, Auto Head Lamp
Leveling Device Module, Fuel Lid & Trunk Open Switch, Shift Lever Indicator, 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 (RLY. 4 - Blower Relay), Ionizer, Active Incar Sensor, Electronic A/C
Compressor
START10ATransaxle Range Switch, Smart Key Control Module
A/BAG15ASRS Control Module, Passenger Occupant Detection Sensor
MODULE 310ABCM, Stop Lamp Switch, AFLS Unit, Keyboard, VESS Unit, A/V & Navigation Head Unit, Sport Mode
Switch
MODULE 410AConsole Switch, Blind Spot Detection Radar LH/RH, Smart Parking Assist Control Module, Smart Cruise
Control Unit, Lane Keeping Assist Module, Active Air Flap Unit, Electric Parking Brake Module, BMS Control
Module
INTERIOR LAMP10ATrunk Room Lamp, Driver/Passenger Door Lamp, Glove Box Lamp, Driver/Passenger Smart Key Outside
Handle, Front Vanity Lamp Switch LH/RH, Overhead Console Lamp, Rear Personal Lamp LH/RH,
Driver/Passenger Foot Lamp, Room Lamp, Center Personal Lamp

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

869
Maintenance
Fuse NameFuse ratingCircuit Protected
A/BAG IND10AInstrument Cluster (Air Bag IND. Power)
TRUNK10ATrunk Lid Relay, Fuel Filler & Trunk Open Switch, ICM Relay Box (Fuel Filler Open Relay)
SUNROOF 220ASunroof Control Unit (Roller)
BATTERY
MANAGEMENT10ABMS Control Module
MEMORY 110AInstrument Cluster, A/C Control Module, Data Link Connector, BCM, 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
FOG LAMP REAR10AICM Relay Box (Rear Fog Lamp Relay)
GATEWAY10AGateway
S/HEATERREAR25ARear Seat Warmer Control Module
SUNROOF 120ASunroof Control Unit (Glass)
S/HEATERFRONT25AFront Air Ventilation Seat Control Module, Front Seat Warmer Control Module
ECS15ANot Used
MODULE 210AAudio, A/V & Navigation Head Unit, Keyboard, Wireless Charger, Around View Monitor Unit, AMP, Power
Outside Mirror Switch, Smart Key Control Module, BCM, Rear USB Charger, VESS Unit, E/R Junction Block
(RLY. 7 - Power Outlet Relay)

Maintenance
70
8
Fuse NameFuse ratingCircuit Protected
P/WDW RH25A
Power Window RH Relay, Rear Safety Power Window Module LH, Rear Power Window Switch LH, Power
Window Main Switch,
[LHD] Passenger Safety Power Window Module
[RHD] Driver Safety Power Window Module
P/SEAT PASS30APassenger Seat Manual Switch, Walk In Relay Module, Passenger Reclining Limit Switch
AMP25AAMP
BRAKE SWITCH10AStop Lamp Switch, Smart Key Control Module, Start/Stop Button Switch
P/WDW LH25A
Power Window LH Relay, Rear Safety Power Window Module RH, Rear Power Window Switch RH, Power
Window Main Switch,
[LHD] Driver Safety Power Window Module
[RHD] Passenger Safety Power Window Module
P/SEAT DRV30ADriver Seat Manual Switch, Driver IMS Module
POWER
OUTLET20AFront Power Outlet #1, Front Cigarette Lighter & Power Outlet #2
RR WIPER15A-
SPARE 110A-
SPARE 210A-