2018 KIA OPTIMA PHEV changing battery

H21
Changing plug-in hybrid mode
Pressing the HEV button changes
the plug-in hybrid system modes, as
below.
Shortly pressed:EV mode ↔ HEV mode
Press and hold: It changes to the HEV-charging
mode. When the HEV button is pressed in
the HEV-charging mode, the mode
changes as below.
- Shortly pressed : It changes to the
CS mode.
- Press and hold: It remains in the HEV-charging mode.
Plug-in hybrid mode indicator

: The high-voltage(hybrid) battery is
used to drive the
vehicle.
: The high-voltage(hybrid) battery
and gasoline
engine is used to
drive the vehicle.
: Gasoline engine isused to drive the
vehicle and charge
the high-voltage
(hybrid) battery
A corresponding message is displayed
to indicate the selected mode.
DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE
OJFHP056292L
OJFHP046420L
OJFHP046421L
OJFHP046422L
OJFHP046425L/OJFHP046426L/OJFHP046427L

Maintenance
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 8-4
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 8-5
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
• Owner maintenance schedule . . . . . . . . . . . . . . . . . . . 8-6
Scheduled maintenance service . . . . . . . . . . . . . . 8-8
Explanation of scheduled maintenance items . . . 8-20
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 8-23
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 8-24
• Changing the engine oil and filter . . . . . . . . . . . . . . . 8-25
Engine maintenance mode (for Plug-in hybrid) . 8-26
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27\
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 8-27
• Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
• Inverter coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
• Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . . 8-29
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 8-31
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 8-32
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 8-33
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
Climate control air filter . . . . . . . . . . . . . . . . . . . . 8-36
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-\
42
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 8-42
• Recharging the battery . . . . . . . . . . . . . . . . . . . . . . . . 8-43
• Reset items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-44\
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-45
• Recommended cold tire inflation pressures . . . . . . . 8-45
• Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46
• Checking tire inflation pressure. . . . . . . . . . . . . . . . . 8-46
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 8-48
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
8

Maintenance
80
8
LIGHT BULBS
Bulb replacement precaution
Please keep extra bulbs on hand
with appropriate wattage ratings in
case of emergencies.
Refer to “Bulb Wattage” in chapter 9.
When changing lamps, first turn off
the engine at a safe place, firmly
apply the parking brake and detach
the battery’s negative (-) terminal.
Use only bulbs of the specified
wattage.✽ ✽ NOTICE
• If the light bulb or lamp connector
is removed while the lamp is still
on, the fuse box's electronic sys-
tem may log it as a malfunction.
Therefore, a lamp malfunction
incident may be recorded as a
Diagnostic Trouble Code (DTC) in
the fuse box.
• It is normal for an operating lamp to flicker momentarily. This is due
to a stabilization function of the
vehicle’s electronic control device.
If the lamp lights up normally
after momentarily blinking, then
it is functioning as normal.
However, if the lamp continues to
flicker several times or turns off
completely, there may be an error
in the vehicle’s electronic control
device. Please have the vehicle
checked by an authorized Kia
dealer immediately.
WARNING- Working on
the lights
Prior to working on the light,
firmly apply the parking brake,
ensure that the engine
start/stop button is in OFF posi-
tion and turn off the lights to
avoid sudden movement of the
vehicle and burning your fingers
or receiving an electric shock.
CAUTION -Light replace-
ment
Be sure to replace the burned- out bulb with one of the samewattage rating. Otherwise, itmay cause damage to the fuseor electric wiring system.
CAUTION -Headlamp
Lens
To prevent damage, do notclean the headlamp lens withchemical solvents or strongdetergents.

911
Specifications, Consumer information, Reporting safety defects
Roadside Assistance is provided on all new current
model year Kia Vehicles from the date the vehicle is deliv-
ered to the first retail buyer or otherwise put into use (in-
service date), whichever is earlier, for a period of 60
months or 60,000 miles, whichever is earlier, subject to
the terms, conditions and exclusions set forth in the Kia
Warranty and Consumer Information Manual applicable
to your model year vehicle.
KMA reserves the right to limit or deny services or other
benefits to any owner or driver when, in KMA's judgment,
the claims and/or service requests are excessive in fre-
quency or type of occurrence.
Toll free consumer assistance
Kia's toll-free Consumer Assistance hot line is staffed
from 5:00 AM to 6:00 PM PST, Monday through Friday
and is accessible by dialing 1-800-333-4Kia (4542).
For more information regarding assistance available,
please refer to your Kia Warranty & Consumer
Information Manual.
Emergency roadside assistance
Kia's toll free Roadside Assistance hot line is staffed 24
hours a day, 365 days a year and is accessible by dialing
1-800-333-4Kia (4542).
Please note that you must provide your Vehicle
Identification Number (VIN) to verify coverage at the time
of your call. The VIN can be found on the dash of your
vehicle on the driver’s side, on the door jamb of the dri-
ver’s door, your vehicle’s registration or proof of insur-
ance card.
Kia utilizes a network of over 30,000 roadside assistance
providers. Should you accidentally run out of fuel, require
a battery jump, or need help changing a tire, a Kia
Roadside Assistance Representative will dispatch some-
one to deliver a small quantity of gas, change a flat tire
with your inflated spare, or arrange a battery jump to
allow you to proceed to your destination. We have access
to a network of over 10,000 locksmiths to help you should
you become locked out of your Kia.
In the event that mechanical difficulty renders your vehi-
cle undriveable due to a warranty-related concern, Kia’s
Roadside Assistance Representative will arrange to
transport your vehicle to the nearest Kia dealer or to an
authorized Kia alternative service location.
CONSUMER ASSISTANCE (U.S. ONLY)