service KIA OPTIMA PLUG-IN HYBRID 2017 Service Manual

PARKING BRAKE (IF EQUIPPED)
Checking the parking brake
0+'
Check whether the stroke is within
specification when the parking brake pedal is depressed with 30 kg (66 lb,
294N) of force. Also, the parking brake
alone should securely hold the vehicle on a fairly steep grade. If the stroke is
more or less than specified, we recom‐
mend that the system be serviced by an authorized Kia dealer.
Stroke : 6~7 notch
Maintenance
9-32

Front windshield wiper blade
0+'
For your convenience, move the wind‐
shield wiper blades to the service posi‐ tion as follows;
After turning off the engine, move the
wiper switch to the single wiping (MIST)
position within 20 seconds and hold the switch more than 2 seconds until the
wiper blade is in the fully up position.
CAUTION
Do not allow the wiper arm to fallagainst the windshield, since it maychip or crack the windshield.
Type A
0).
0).
1. Raise the wiper arm. 2. Lift up the wiper blade clip. Then
pull down the blade assembly and
remove it.
3. Install the new blade assembly.
4. Return the wiper arm on the wind‐ shield.
5. Turn ignition to the ON position and wiper arms will return to the nor‐
mal operating position.
Type B
-%"
1. Raise the wiper arm and turn the wiper blade assembly to expose
the plastic locking clip.

9-37
9
Maintenance

BATTERY
For best battery service
• Keep the battery securely mounted.
• Keep the battery top clean and dry.
• Keep the terminals and connectionsclean, tight, and coated with petrole‐
um jelly or terminal grease.
• Rinse any spilled electrolyte from the battery immediately with a solution
of water and baking soda.
• If the vehicle is not going to be used for an extended time, disconnect the
battery cables.
NOTICE
Basically equipped battery is main‐
tenance free type. If your vehicle is
equipped with the battery marked
with LOWER and UPPER on the side,
you can check the electrolyte level.
The electrolyte level should be be‐
tween LOWER and UPPER. If the
electrolyte level is low, it needs to
add distilled (demineralized) water
(Never add sulfuric acid or other
electrolyte). When refill, be careful
not to splash the battery and adja‐
cent components. And do not overfill
the battery cells. It can cause corro‐
sion on other parts. After then en‐
sure that tighten the cell caps. We
recommend that you contact an au‐
thorized Kia dealer.
WARNING
nBattery dangers
(Continued)
(Continued)
Always read the followinginstructions carefully whenhandling a battery.
Keep lighted cigarettes andall other flames or sparksaway from the battery.
Hydrogen, a highly com‐bustible gas, is alwayspresent in battery cells andmay explode if ignited.
Keep batteries out of thereach of children becausebatteries contain highlycorrosive SULFURIC ACID.Do not allow battery acidto contact your skin, eyes,clothing or paint finish.
(Continued)

9-39
9
Maintenance

this section for additional
information.
Wheel size designation
Wheels are also marked with important
information that you need if you ever have to replace one. The following ex‐
plains what the letters and numbers in
the wheel size designation mean. Example wheel size designation:
7.5JX19
7.5 - Rim width in inches.
J - Rim contour designation.
19 - Rim diameter in inches.
Tire speed ratings
The chart below lists many of the dif‐ ferent speed ratings currently being
used for passenger car tires. The speed
rating is part of the tire size designa‐ tion on the sidewall of the tire. This
symbol corresponds to that tire's de‐
signed maximum safe operating speed.
SpeedRatingSymbolMaximum Speed
S 180 km/h (112 mph)
T 190 km/h (118 mph)
H 210 km/h (130 mph) V 240 km/h (149 mph)
SpeedRatingSymbolMaximum Speed
Z Above 240 km/h (149
mph)
3. Checking tire life (TIN: Tire
Identification Number)
Any tires that are over 6 years old,
based on the manufacturing date, (in‐ cluding the spare tire) should be re‐
placed by new ones. You can find the
manufacturing date on the tire sidewall (possibly on the inside of the wheel),
displaying the DOT Code. The DOT Code
is a series of numbers on a tire consist‐ ing of numbers and English letters. The
manufacturing date is designated by
the last four digits (characters) of the DOT code.
DOT : XXXX XXXX OOOO
The front part of the DOT means a
plant code number, tire size and tread
pattern and the last four numbers indi‐ cate week and year manufactured.
For example:
DOT XXXX XXXX 1616 represents that
the tire was produced in the 16th week
of 2016.
WARNING
nTire age
Tires degrade over time, even whenthey are not being used.Regardless of the remaining tread,we recommend that tires be re‐placed after approximately six (6)years of normal service. Heat causedby hot climates or frequent highloading conditions can accelerate theaging process. Failure to follow thiswarning can result in sudden tirefailure, which could lead to a loss ofcontrol and an accident involving se‐rious injury or death.
4. Tire ply composition and material
The number of layers or plies of rub‐
ber-coated fabric in the tire. Tire man‐ ufacturers also must indicate the ma‐
terials in the tire, which include steel,
nylon, polyester, and others. The letter "R" means radial ply construction; the
letter "D" means diagonal or bias ply
construction; and the letter "B" means belted-bias ply construction.

9-49
9
Maintenance

4. Replace the fuse with a new one ofthe same rating.
5. Reinstall in the reverse order of re‐ moval.
NOTICE
The electronic system may not
function correctly even when the
engine room and internal fuse box's
individual fuses are not disconnec‐
ted. In such case the cause of the
problem may be disconnection of
the main fuse (BFT type), which is
located inside the positive battery
terminal (+) cap. Since the main fuse
is designed more intricately than
other parts, please visit the nearest
Kia dealer and service center.
CAUTION
Visually inspect the battery cap forsecure closing. If the battery cap isnot securely latched, the electricalsystem may be damaged to due in‐flux of moisture into the system.
Fuse/relay panel description
%SJWFSLÓT
TJEF
GVTF
QBOFM
0+'
&OHJOF
DPNQBSUNFOU
GVTF
QBOFM
#BUUFSZ
UFSNJOBM
DPWFS
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.
Maintenance
9-56

•Lamp part malfunction due to electri‐cal control system stabilization
A normally functioning lamp may
flicker momentarily. This momentary occurrence is due to stabilization unc‐
tion of the vehicle's electrical on con‐
trol system. If the lamp soon returns
to normal, the vehicle does not re‐
quire service.
However, if the lamp goes out after he momentary flickering, or the flick‐
ering continues, we recommend the
system be serviced by an authorized
Kia dealer.
NOTICE
•If the light bulb or lamp connector
is removed from an operating
lamp activated by electricity, the
fuse box’s electronic device may
scan it as a malfunction. There‐
fore, a lamp malfunction history
may be recorded in Diagnostic
Trouble Code (DTC) in the fuse
box.
(Continued)
(Continued)
•It is normal for an operating lamp
may blink temporarily. Since this
occurrence is due stabilization
function of the vehicle’s electronic
control device, if the lamp lights up
normally after temporary blinking,
there is no problem in the vehicle.
However, if the lamp continues to
blink several times or turn off
completely, there may be an error
in the vehicle’s electronic control
device. So we recommend that
you have the vehicle checked by
an authorized Kia dealer immedi‐
ately.
NOTICE
We recommend that the headlight
aiming be adjusted after an accident
or after the headlight assembly is
reinstalled at an authorized Kia deal‐
er.
NOTICE
After driving in heavy rain or wash‐
ing, headlamp and tail lamp lenses
could appear frosty. This condition is
caused by the temperature differ‐
ence between the lamp inside and
outside. This is similar to the con‐
densation on your windows inside
your vehicle during the rain and
doesn’t indicate a problem with your
vehicle. If the water leaks into the
lamp bulb circuitry, have the vehicle
checked by an authorized Kia dealer.

9-71
9
Maintenance

Position lamp + DRL (LED type)
bulb replacement
5ZQF
"
5ZQF
#
If the position lamp + DRL (1) does not
operate, we recommend you to have it checked at an authorized Kia dealer.
Side repeater lamp bulb
replacement
5ZQF
"
0+'
If the Side repeater lamp does not op‐
erate, we recommend you to have it checked at an authorized Kia dealer.
Rear turn signal lamp bulb
replacement
0+'
1. Open the trunk lid.
2. Open the service cover.

9-77
9
Maintenance

0+'
3. Remove the nuts from the vehicle.
4. Disconnect the rear combinationlamp connector.
0+'
0+'
5. Remove the rear combination lampassembly from the body of the ve‐
hicle. 6. Remove the socket from the as‐
sembly by turning the socket coun‐
terclockwise until the tabs on the
socket align with the slots on the
assembly.
7. Remove the bulb from the socket by pressing it in and rotating itcounterclockwise until the tabs on
the bulb align with the slots in the
socket. Pull the bulb out of the
socket.
8. Insert a new bulb by inserting it in‐ to the socket and rotating it until it
locks into place.
9. Install the socket in the assembly by aligning the tabs on the socket
with the slots in the assembly.
Push the socket into the assembly
and turn the socket clockwise.
10. Install the rear combination lamp assembly to the body of the vehi‐
cle.
11. Install the service cover by putting it into the service hole.
Maintenance
9-78

Fuel þauþe........................................................................ 5-53
Fuel requirements...........................................................2-03
Fuse switch...................................................................... 9-54
Fuses................................................................................. 9-52Fuse switch.................................................................. 9-54
Fuse/relay panel description.......................... 9-56,9-57
Instrument panel ýuse............................................... 9-53
Main ýuse..................................................................... 9-55
Multi ýuse..................................................................... 9-55
G
Gauþes.............................................................................. 5-51 Gauþe Transaxle shiýt indicator............................................5-54
Glove box........................................................................ 5-150
Gross vehicle weiþht.................................................... 10-04
H
Hazardous drivinþ conditions........................................ 7-99
Headliþht bulb replacement.......................................... 9-70
Headrest (ýront).............................................................. 4-09
Headrest (rear)................................................................ 4-12
Heated steerinþ wheel................................................... 5-42 Heater
Automatic climate control system........................5-138
Hiþhway drivinþ............................................................ 7-102
Hill-start assist control (HAC)....................................... 7-34
Hood.................................................................................. 5-27
Horn...................................................................................5-42
How to use this manual................................................. 2-02
Hybrid battery SOC (state oý charþe) þauþe............. 5-52
Hybrid system þauþe..................................................... 5-51
I
Immobilizer system........................................................ 5-04
Indicator liþhts................................................................. 5-84
Inside rearview mirror.................................................... 5-44
Instrument cluster.......................................................... 5-48 A/V mode..................................................................... 5-71
Gauþes.......................................................................... 5-51
Indicator liþhts............................................................ 5-84
Instrument cluster control........................................ 5-49
LCD display...................................................................5-56
LCD display control..................................................... 5-50
LCD Modes................................................................... 5-56
Service mode............................................................... 5-57
Transaxle shiýt indicator............................................5-54
Trip computer..............................................................5-63
Alphabetical index
I-5
Alphabetical index

Trip modes................................................................... 5-63
Turn by turn mode..................................................... 5-71
User settinþs mode.................................................... 5-58
Warninþ and indicator liþhts..................................... 5-79
Warninþ liþhts............................................................. 5-79
Warninþ messaþes..................................................... 5-71
Instrument panel ýuse................................................... 9-53
Instrument panel illumination.......................................5-49
Instrument panel overview........................................... 3-05
Interior care..................................................................... 9-89
Interior ýeatures........................................................... 5-152
Air ventilation seat................................................... 5-156
Ashtray...................................................................... 5-152
Ciþarette liþhter....................................................... 5-152
Clothes hanþer.......................................................... 5-160
Cup holder..................................................................5-153
Floor mat anchor(s)................................................. 5-161
Power outlet............................................................. 5-157
Side curtain................................................................5-162
Sunvisor..................................................................... 5-154
USB charþer...............................................................5-158
Wireless smart phone charþinþ system...............5-158
Interior liþht
Map lamp................................................................... 5-126
Room lamp................................................................ 5-127
Interior overview............................................................. 3-04 ISOFIX system................................................................. 4-33
K
Key operations................................................................ 5-04 Keys Immobilizer system....................................................5-04
Key operations............................................................ 5-04
Record your key number...........................................5-04
L
Label Air baþ warninþ label................................................. 4-67
Air conditioner compressor label........................... 10-17
Reýriþerant label.......................................................10-18
Tire sidewall labelinþ.................................................. 9-48
Tire speciýication and pressure label.................... 10-15
Vehicle certiýication label........................................ 10-14
Lane departure warninþ system (LDWS)................... 7-79
Lap/shoulder belt............................................................ 4-21
LCD display....................................................................... 5-56
A/V mode..................................................................... 5-71
Indicator liþhts............................................................ 5-84
LCD Modes................................................................... 5-56
Service mode............................................................... 5-57
Trip computer..............................................................5-63
Alphabetical index
I-6 Alphabetical index