radiator KIA OPTIMA HYBRID 2018 Owners Manual

Your vehicle at a glance
62
ENGINE COMPARTMENT
OJFH075161L
■
■
Gasoline Engine (Nu 2.0L - GDI)
❈ The actual engine room in the vehicle may differ from the illustration. 1. Engine coolant reservoir ...................8-27
2. Engine oil filler cap ...........................8-24
3. Engine oil dipstick .............................8-24
4. Brake fluid reservoir ..........................8-31
5. Air cleaner.........................................8-34
6. Fuse box ...........................................8-60
7. Inverter coolant reservoir ..................8-28
8. Radiator cap .....................................8-29
9. Windshield washer fluid reservoir .....8-32

429
Features of your vehicle
Opening the fuel filler lid
The fuel filler lid must be opened
from inside the vehicle by pressing
the fuel filler lid opener button.
If the fuel filler lid does not open
because ice has formed around it,
tap lightly or push on the lid to break
the ice and release the lid. Do not pry
on the lid. If necessary, spray around
the lid with an approved de-icer fluid
(do not use radiator anti-freeze) or
move the vehicle to a warm place
and allow the ice to melt.1. Stop the engine.
2. To open the fuel filler lid, push the
fuel filler lid opener button.
3. Pull open the fuel filler lid (1).
4. To remove the cap, turn the fuel filler cap (2) counterclockwise(3).
5. Refuel as needed.
Closing the fuel filler lid
1. To install the cap, turn it clockwise until it “clicks” once. This indicates
that the cap is securely tightened.
2. Close the fuel filler lid and push it in lightly making sure that it is
securely closed.
✽ ✽NOTICE
There may be an intermittent noise
near the refueling hole while the
engine is idling if the fuel cap is not
closed securely. This occurs normal-
ly with the OBD system.
✽ ✽NOTICE
When refueling on unlevel ground,
the fuel gauge may not point to the F
position.
It is not a malfunction. If you move
your vehicle to a level ground, the fuel
gauge will move to the full position.
FUEL FILLER LID (HYBRID)
OJF045021
OJF045022L

433
Features of your vehicle
Opening the fuel filler lid
The fuel filler lid must be opened
from inside the vehicle by pressing
the fuel filler lid opener button.
If the fuel filler lid does not open
because ice has formed around it,
tap lightly or push on the lid to break
the ice and release the lid. Do not pry
on the lid. If necessary, spray around
the lid with an approved de-icer fluid
(do not use radiator anti-freeze) or
move the vehicle to a warm place
and allow the ice to melt.Wait until the fuel tank is depressur-
ized. The message is displayed when
the fuel filler lid opens after the fuel
tank is depressurized.
✽ ✽
NOTICE
• It may take up to 20 seconds to
open fuel filler door.
• When the fuel filler door is frozen and does not open after 20 seconds
at freezing temperature, slightly
tap the fuel filler door and then
attempt to open it.
FUEL FILLER LID (PLUG-IN HYBRID)
OJF045021
OJFHP046424L
OJFHP046423L

Features of your vehicle
48
4
Outside rearview mirror
Be sure to adjust the mirror angles
before driving.
Your vehicle is equipped with both
left-hand and right-hand outside
rearview mirrors. The mirrors can be
adjusted remotely with the remote
switch. The mirror heads can be fold-
ed back to prevent damage during an
automatic vehicle wash or when
passing through a narrow street.
The right outside rearview mirror is
convex. Objects seen in the mirror
are closer than they appear.
Use your interior rearview mirror or
direct observation to determine the
actual distance of following vehicles
when changing lanes. If the mirror is jammed with ice, do
not adjust the mirror by force. Use an
approved spray de-icer (not radiator
antifreeze) to release the frozen
mechanism or move the vehicle to a
warm place and allow the ice to melt.
Adjusting outside rearview mirror
The electric remote control mirror
switch allows you to adjust the posi-
tion of the left and right outside
rearview mirrors. To adjust the posi-
tion of either mirror, press the R or L
button (1) to select the right side mir-
ror or the left side mirror, then press a
corresponding point ( ) on the mir-
ror adjustment control to position the
selected mirror up, down, left or right.
After adjustment, press the R or L
button again to prevent the inadver-
tent adjustment.
OJF045033L
WARNING- Mirror
adjustment
Do not adjust or fold the outside
rearview mirrors while the vehi-
cle is moving. This could result
in loss of control.
CAUTION - Rearview
mirror
Do not scrape ice off the mirror face; this may damage the sur-face of the glass. If ice shouldrestrict the movement of the mir-ror, do not force the mirror foradjustment. To remove ice, use adeicer spray, a sponge or softcloth with very warm water.

Driving your vehicle
72
6
- After an engine start, please stop
for several seconds. If system ini-
tialization is not completed, the
ASCC does not normally operate.
- After an engine start, if any objects are not detected or the sensor
cover is obscured with foreign sub-
stances, there is a possibility that
the ASCC system may not work.
- The following conditions may cause a malfunction: over-loading
the trunk, suspension modification,
tire replacement with unauthorized
tires or tires with different tread
wear and pressure levels. This device complies with Part 15
of the FCC rules.
Operation is subject to the following
three conditions:
1. This device may not cause harm-
ful interference, and
2. This device must accept any inter- ference received, including inter-
ference that may cause undesired
operation.
3. Changes or modifications not expressly approved by the party
responsible for compliance could
void the user’s authority to operate
the device. Radio frequency radiation expo-
sure information:
This equipment complies with FCC
radiation exposure limits set forth for
an uncontrolled environment.
This equipment should be installed
and operated with minimum distance
of 20 cm between the radiator
(antenna) and your body.
This transmitter must not be co-locat-
ed or operating in conjunction with
any other antenna or transmitter.
WARNING - Inclines &
Towing
Do not use ASCC on steep
inclines or when towing another
vehicle or trailer since such
extreme loading can interfere
with your vehicle's ability to
maintain the selected speed.

77
What to do in an emergency
IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you will experience a
loss of power, or hear loud pinging or
knocking, the engine is probably too
hot. If this happens, you should:
1. Turn on the emergency warningflasher and stop in a safe place.
Move the shift lever to P (Park)
and engage the parking brake.
2. If hot steam does not come out from the engine room, carefully
open the engine room and check
whether the water pump connec-
tor is properly engaged. If the con-
nector is not properly engaged,
stop the engine immediately and
properly engage the connector.
Then, turn the engine on.
3. Turn on the air conditioner. 4. If the “HEV Warning” light turns on
in the driver instrument cluster, or
engine coolant or hot steam emits
from the engine coolant filler, stop
the engine immediately. Then, call
the nearest authorized Kia dealer
for assistance. If the “Engine
Warning” light remains illuminated
or the engine coolant is not flowing
out, keep the engine running.
Open the engine hood for ventila-
tion to help cool down the engine. 5. Check whether the engine coolant
temperature is low enough by
checking its temperature. If the
engine coolant level is low, please
check the connecting parts
between the radiator hose, heater
hose, and water pump for any
signs of leakage. When there is no
sign of leakage, please refill the
engine coolant. If causes and
signs of engine overheating such
as warning light illumination,
engine coolant leakage, or cooling
fan malfunction are found, stop the
vehicle the earliest. Then, call the
nearest authorized Kia dealer for
assistance.
WARNING
While the engine is running,
keep hair, hands and clothing
away from moving parts such
as the fan and drive belts to pre-
vent injury.

What to do in an emergency
87
6. If you cannot find the cause of theoverheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been lost,
carefully add coolant to the reser-
voir to bring the fluid level in the
reservoir up to the halfway mark.
7. Proceed with caution, keeping alert for further signs of overheat-
ing. If over heating happens again,
call the nearest authorized Kia
dealer for assistance.
✽ ✽NOTICE
Serious loss of coolant indicates
there is a leak in the cooling system
and should be checked as soon as
possible by an authorized Kia dealer.
CAUTION
When the engine overheats from
low engine coolant, suddenlyadding engine coolant maycause cracks in the engine. Toprevent damage, add enginecoolant slowly in small quantities
WARNING
Do not remove the
radiator cap when the
engine is hot. This
can allow coolant to
blow out of the open-
ing and cause seri-
ous burns.

83
Maintenance
ENGINE COMPARTMENT
OJFH075161L
■
■Gasoline Engine (Nu 2.0L - GDI)❈ The actual engine compartment in the vehicle may differ from the illustration. 1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil dipstick
4. Brake fluid reservoir
5. Air cleaner
6. Fuse box
7. Inverter coolant reservoir
8. Radiator cap
9. Windshield washer fluid reservoir

87
Maintenance
At least monthly:
Check the coolant level in theengine coolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all tires including the spare.
At least twice a year
(i.e., every Spring and Fall) :
Check the radiator, heater and air conditioning hoses for leaks or
damage.
Check the windshield washer spray and wiper operation. Clean
the wiper blades with clean cloth
dampened with washer fluid.
Check the headlight alignment.
Check the muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
Check for worn tires and loose wheel lug nuts.
At least once a year :
Clean the body and door drainholes.
Lubricate the door hinges and check the hood hinges.
Lubricate the door and hood locks and latches.
Lubricate the door rubber weather- strips.
Check the air conditioning system.
Inspect and lubricate automatic transaxle linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

821
Maintenance
Air cleaner filter
A Genuine Kia air cleaner filter is
recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling system
Check the cooling system compo-
nents, such as the radiator, coolant
reservoir, hoses and connections for
leakage and damage. Replace any
damaged parts.
Coolant (Engine / Inverter)
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Automatic transaxle fluid
Automatic transaxle fluid should not
be checked under normal usage
conditions.
But in severe conditions, the fluid
should be changed at an authorized
Kia dealer in accordance to the
scheduled maintenance at the begin-
ning of this chapter.
✽ ✽NOTICE
Automatic transaxle fluid color is
basically red.
As the vehicle is driven, the auto-
matic transaxle fluid will begin to
look darker.
It is normal condition and you should
not judge the need to replace the fluid
based upon the changed color.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
CAUTION
Use only specified automatic
transaxle fluid. The use of a non-specified fluid could result in atransaxle malfunction and fail-ure. (Refer to "Recommendedlubricants and capacities" inchapter 9.)