2018 KIA OPTIMA PHEV check oil

487
Features of your vehicle
Engine Oil PressureWarning Light
This warning light illuminates:
Once you set the Engine Start/Stop Button to the ON posi-
tion.
- It remains on until the engine isstarted.
When the engine oil pressure is low.
If the engine oil pressure is low:
1.Drive carefully to the nearest safe location and stop your vehicle.
2.Turn the engine off and check the engine oil level (For more details,
refer to “Engine Oil” in chapter 8). If
the level is low, add oil as required.
If the warning light remains on after
adding oil or if oil is not available,
have your vehicle inspected by an
authorized Kia dealer as soon as
possible. If the warning light stays on while the
engine is running, it indicates that
there may be serious engine dam-
age or malfunction. In this case,
1. Stop the vehicle as soon as it is
safe to do so.
2. Turn off the engine and check the oil level. If the oil level is low, fill the
engine oil to the proper level.
3. Start the engine again. If the warn- ing light stays on after the engine
is started, turn the engine off
immediately. In this case, have
your vehicle inspected by an
authorized Kia dealer.
Low Tire Pressure
Warning Light
This warning light illuminates:
Once you set the Engine Start/Stop Button to the ON posi-
tion.
- It illuminates for approximately 3seconds and then goes off.
When one or more of your tires are significantly underinflated.
❈ For more details, refer to “Tire
Pressure Monitoring System
(TPMS)” in chapter 7.
CAUTION - Engine
damage
If the engine is not stopped
immediately after the engine oilpressure warning light is illumi-nated and stays on while theengine is running, seriousengine damage may result.

4127
Features of your vehicle
Climate control air filter
(if equipped)
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle from the outside through the
heating and air conditioning system.
If dust or other pollutants accumulate
in the filter over a period of time, the
air flow from the air vents may
decrease, resulting in moisture accu-
mulation on the inside of the wind-
shield even when the outside (fresh)
air position is selected. If this hap-
pens, have the climate control air fil-
ter replaced by an authorized Kia
dealer.
✽ ✽NOTICE
• Replace the filter every 15,000
miles or once a year.
If the vehicle is being driven in
severe conditions such as dusty or
rough roads, more frequent air
conditioner filter inspections and
changes are required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized Kia
dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air condi-
tioning is reduced. Overfilling also
has a negative impact on the air con-
ditioning system.
Therefore, if abnormal operation is
found, have the system inspected by
an authorized Kia dealer.
1LDA5047
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core
WARNING
The oil and refrigerant in your
vehicle's air conditioning sys-
tem is under very high pres-
sure. If proper service proce-
dures are not followed an explo-
sion may result. To reduce the
risk of serious injury or death,
the air conditioning system in
your vehicle should only be
serviced by trained and certi-
fied technicians.

63
Driving your vehicle
Be sure the exhaust system does
not leak.
The exhaust system should be
checked whenever the vehicle is
raised to change the oil or for any
other purpose. If you hear a change in
the sound of the exhaust or if you drive
over something that strikes the under-
neath side of the vehicle, have the
exhaust system checked as soon as
possible by an authorized Kia dealer.
WARNING- Engineexhaust
Do not inhale exhaust fumes or
leave your engine running in a
enclosed area for a prolonged
time. Exhaust fumes contain
carbon monoxide, a colorless,
odorless gas that can cause
unconsciousness and death by
asphyxiation.
WARNING- Open trunk
Do not drive with the trunk open.
Poisonous exhaust gases can
enter the passenger compart-
ment. If you must drive with the
trunk open proceed as follows:
1. Close all windows.
2. Open side vents.
3. Set the air intake control at "Fresh", the air flow control at
"Floor" or "Face" and the fan
at the highest speed.WARNING - CALIFORNIA
PROPOSITION 65
Engine exhaust and a wide vari-
ety of automobile components
and parts, including compo-
nents found in the interior fur-
nishings in a vehicle, contain or
emit chemicals known to the
State of California to cause can-
cer and birth defects and repro-
ductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of compo-
nent wear contain or emit chem-
icals known to the State of
California to cause cancer and
birth defects or other reproduc-
tive harm.

Driving your vehicle
46
Before entering vehicle
• Be sure that all windows, outsidemirror(s), and outside lights are
clean.
Check the condition of the tires.
Check under the vehicle for any sign of leaks.
Be sure there are no obstacles behind you if you intend to back up.
Necessary inspections
Fluid levels, such as engine oil,
engine coolant, brake fluid, and
washer fluid should be checked on a
regular basis, at the exact interval
depending on the fluid. Further
details are provided in chapter 8,
“Maintenance”.
Before starting
Close and lock all doors.
Position the seat so that all con-trols are easily reached.
Buckle your seat belt.
Adjust the inside and outside rearview mirrors.
Be sure that all lights work.
Check all gauges.
Check the operation of warning lights when the engine start/stop
button is turned to the ON position.
Release the parking brake and make sure the brake warning light
goes out.
For safe operation, be sure you are
familiar with your vehicle and its
equipment.
BEFORE DRIVING
WARNING - Distracted driving
Focus on the road while driving.
The driver's primary responsi-
bility is in the safe and legal
operation of the vehicle. Use of
any handled devices, other
equipment or vehicle systems
that distract the drive should
not be used during vehicle
operation.

Driving your vehicle
94
6
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may be
affected.
After driving through water, dry the
brakes by gently applying them sev-
eral times while the vehicle is moving
slowly.
Driving off-road
Drive carefully off-road because your
vehicle may be damaged by rocks or
roots of trees. Become familiar with
the off-road conditions where you
are going to drive before you begin
driving.
Highway driving
Tires
Adjust the tire inflation pressures to
specification. Low tire inflation pres-
sures will result in overheating and
possible failure of the tires.
Avoid using worn or damaged tires
which may result in reduced traction
or tire failure.
Never exceed the maximum tire
inflation pressure shown on the tires.
Fuel, engine coolant and engine oil
High speed travel consumes more
fuel than urban motoring. Do not for-
get to check both the engine coolant
and engine oil.
Drive belt
A loose or damaged drive belt may
result in overheating of the engine.
WARNING- Under/over
inflated tires
Always check the tires for proper
inflation before driving.
Underinflated or overinflated
tires can cause poor handling,
loss of vehicle control, and sud-
den tire failure leading to acci-
dents, injuries, and even death.
For proper tire pressures, refer to
“Tires and wheels” in chapter 9.
WARNING- Tire tread
Always check the tire tread
before driving your vehicle.
Worn-out tires can result in loss
of vehicle control. Worn-out tires
should be replaced as soon as
possible. For further information
and tread limits, refer to "Tires
and wheels" in chapter 8.

697
Driving your vehicle
The use of chains may adverselyaffect vehicle handling.
Do not exceed 20 mph (30 km/h) or the chain manufacturer’s recom-
mended speed limit, whichever is
lower.
Drive carefully and avoid bumps, holes, sharp turns, and other road
hazards, which may cause the
vehicle to bounce.
Avoid sharp turns or locked-wheel braking.Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 8. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 8. The level of charge in
your battery can be checked by an
authorized Kia dealer or a service
station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 9 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
Kia dealer.
Check spark plugs and ignition
system
Inspect your spark plugs as
described in chapter 8 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.CAUTION- Snow chains
Chains that are the wrong size or improperly installed candamage your vehicle's brakelines, suspension, body andwheels.
Stop driving and retighten the chains any time you hear themhitting the vehicle.

What to do in an emergency
47
IF THE ENGINE WILL NOT START
If engine doesn't turn over or
turns over slowly
1. If your vehicle has an automatictransaxle, be sure the shift lever is
in N (Neutral) or P (Park) and the
emergency brake is set.
2. Check the battery connections to be sure they are clean and tight.
3. Turn on the interior light. If the light dims or goes out when you oper-
ate the starter, the battery is dis-
charged.
4. Check the starter connections to be sure they are securely tight-
ened.
5. Do not push or pull the vehicle to start it. See instructions for "Jump
starting".
If engine turns over normally
but does not start
1. Check the fuel level.
2. With the ignition switch in theLOCK position, check all connec-
tors at the ignition coils and spark
plugs. Reconnect any that may be
disconnected or loose.
3. Check the fuel line in the engine compartment.
4. If the engine still does not start, call an authorized Kia dealer or
seek other qualified assistance.
WARNING - Push/
pull start
Do not push or pull the vehicle
to start it. Push or pull starting
may cause the catalytic con-
verter to overload and create a
fire hazard.

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