fuel pressure KIA Optima Hybrid 2016 4.G Owner's Manual

Features of your vehicle
76
4
If the warning light stays on while
the engine is running, it indicates
that there may be serious engine
damage 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 warning light stays on after the
engine is started, turn the
engine off immediately. In this
case, have your vehicle inspect-
ed by an authorized Kia
Premium dealer.
Low Fuel Level Warning
Light
This warning light illuminates:
When the fuel tank is nearly empty.
If the fuel tank is nearly empty:
Add fuel as soon as possible.
Door Ajar Warning Light
This warning light illuminates:
When a door is not closed securely.
Trunk Open WarningLight
This warning light illuminates:
When the trunk is not closed secure-
ly.
CAUTION- Low Fuel Level
Driving with the Low Fuel Levelwarning light on or with the fuellevel below can cause theengine to misfire and damagethe catalytic converter (ifequipped).
CAUTION - Engine dam-
age
If the engine does not stopimmediately after the engine oilpressure warning light is illumi-nated and stays on while theengine is running, seriousengine damage may result.

543
Driving your vehicle
ECONOMICAL OPERATION
Your vehicle's fuel economy depends
mainly on your style of driving, where
you drive and when you drive.
Each of these factors affects how
many miles (kilometers) you can get
from a gallon (liter) of fuel. To operate
your vehicle as economically as pos-
sible, use the following driving sug-
gestions to help save money in both
fuel and repairs:
Drive smoothly. Accelerate at amoderate rate. Don't make "jack-
rabbit" starts or full-throttle shifts
and maintain a steady cruising
speed. Don't race between stop-
lights. Try to adjust your speed to
the traffic so you don't have to
change speeds unnecessarily.
Avoid heavy traffic whenever pos-
sible. Always maintain a safe dis-
tance from other vehicles so you
can avoid unnecessary braking.
This also reduces brake wear.
Drive at a moderate speed. The faster you drive, the more fuel your
vehicle uses. Driving at a moderate
speed, especially on the highway,
is one of the most effective ways to
reduce fuel consumption. Don't "ride" the brake pedal. This
can increase fuel consumption and
also increase wear on these com-
ponents. In addition, driving with
your foot resting on the brake pedal
may cause the brakes to overheat,
which reduces their effectiveness
and may lead to more serious con-
sequences.
Take care of your tires. Keep them inflated to the recommended pres-
sure. Incorrect inflation, either too
much or too little, results in unnec-
essary tire wear. Check the tire
pressures at least once a month.
Be sure that the wheels are aligned correctly. Improper align-
ment can result from hitting curbs
or driving too fast over irregular
surfaces. Poor alignment causes
faster tire wear and may also result
in other problems as well as
greater fuel consumption. Keep your vehicle in good condi-
tion. For better fuel economy and
reduced maintenance costs, main-
tain your vehicle in accordance
with the maintenance schedule in
chapter 7. If you drive your vehicle
in severe conditions, more frequent
maintenance is required (see
chapter 7 for details).
Keep your vehicle clean. For maxi- mum service, your vehicle should
be kept clean and free of corrosive
materials. It is especially important
that mud, dirt, ice, etc. not be
allowed to accumulate on the
underside of the vehicle. This extra
weight can result in increased fuel
consumption and also contribute to
corrosion.
Travel lightly. Don't carry unneces- sary weight in your vehicle. Weight
reduces fuel economy.
Don't let the engine idle longer than necessary. If you are waiting
(and not in traffic), turn off your
engine and restart only when
you're ready to go.

Driving your vehicle
48
5
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
overheat the engine.
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 7.
WARNING - Under/Over Inflated Tires
Always check the tires for prop-
er 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.

Maintenance
67
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized Kia dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolantreservoir.
Check the windshield washer fluid level.
Look for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound of the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering wheel. Notice any increased steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
Notice if your vehicle constantly turns slightly or “pulls” to one side
when traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
If any slipping or changes in the operation of your transaxle occurs,
check the transaxle fluid level.
Check the automatic transaxle P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
WARNING - Hot coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot
coolant and steam may blow
out under pressure.

743
Maintenance
TIRES AND WHEELS
Tire care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
Recommended cold tire infla-
tion pressures
All tire pressures (including the
spare) should be checked when the
tires are cold. “Cold Tires” means the
vehicle has not been driven for at
least three hours or driven less than
1.6 km (one mile).
Recommended pressures must be
maintained for the best ride, top vehi-
cle handling, and minimum tire wear.
For recommended inflation pressure
refer to “Tire and wheels” in chapter
8.All specifications (sizes and pres-
sures) can be found on a label
attached to the driver’s side center
pillar.
Underinflation also results in
excessive wear, poor handling and
reduced fuel economy. Wheel
deformation also is possible. Keep
your tire pressures at the proper
levels. If a tire frequently needs
refilling, have it checked by an
authorized Kia dealer.
Overinflation produces a harsh ride, excessive wear at the center of the
tire tread, and a greater possibility
of damage from road hazards.
WARNING - Tire underin-
flation
Inflate your tires consistent with
the instructions provided in this
manual. Severe underinflation
(70 kPa (10 psi) or more) can
lead to severe heat build-up,
causing blowouts, tread separa-
tion and other tire failures that
can result in the loss of vehicle
control. This risk is much higher
on hot days and when driving
for long periods at high speeds.
OMG055004

Maintenance
52
7
Tire terminology and definitions
Air Pressure: The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
pounds per square inch (psi) or kilo-
pascal (kPa).
Accessory Weight : This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, automatic
transaxle, power seats, and air con-
ditioning.
Aspect Ratio : The relationship of a
tire's height to its width.
Belt: A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.
Bead: The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire : A pneumatic tire in
which the plies are laid at alternate
angles less than 90 degrees to the
centerline of the tread. Cold Tire Pressure: The amount of
air pressure in a tire, measured in
pounds per square inch (psi) or kilo-
pascals (kPa) before a tire has built
up heat from driving.
Curb Weight: This means the weight
of a motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil and
coolant, but without passengers and
cargo.
DOT Markings: The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric des-
ignator which can also identify the
tire manufacturer, production plant,
brand and date of production.
GVWR: Gross Vehicle Weight Rating
GAWR FRT: Gross Axle Weight
Rating for the Front Axle.
GAWR RR: Gross Axle Weight
Rating for the Rear axle.
Intended Outboard Sidewall:
The
side of an asymmetrical tire, that
must always face outward when
mounted on a vehicle.
Kilopascal (kPa): The metric unit for
air pressure.
Light truck (LT) tire: A tire designat-
ed by its manufacturer as primarily
intended for use on lightweight trucks
or multipurpose passenger vehicles.
Load Index: An assigned number
ranging from 1 to 279 that corre-
sponds to the load carrying capacity
of a tire.
Load ratings: The maximum load
that a tire is rated to carry for a given
inflation pressure.
Maximum Inflation Pressure: The
maximum air pressure to which a
cold tire may be inflated. The maxi-
mum air pressure is molded onto the
sidewall.
Maximum Load Rating: The load
rating for a tire at the maximum per-
missible inflation pressure for that tire.

Index
8I
Recommended cold tire inflation pressures . . . . . . . 7-43
Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43\
Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-48
Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45
Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . 7-48
Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-48
Wheel alignment and tire balance . . . . . . . . . . . . . . 7-46
Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 7-48
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 6-23 Emergency towing . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Removable towing hook (front) . . . . . . . . . . . . . . . . 6-24
Towing service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Trip computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67 Fuel Economy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
One time driving information mode . . . . . . . . . . . . 4-70
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Trip A/B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-69\
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 4-18 Closing the trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Emergency trunk lid release cable . . . . . . . . . . . . . . 4-19
Emergency trunk safety release . . . . . . . . . . . . . . . . 4-20
Opening the trunk. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18 Vehicle break-in process . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Vehicle certification label . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Vehicle Data Collection and Event Data Recorders . . . . 1-6
Vehicle identification number (VIN) . . . . . . . . . . . . . . . 8-8
Vehicle load limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-52
Certification label . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-55
Tire and loading information label. . . . . . . . . . . . . . 5-52
Vehicle weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-57
Warning and indicator lights. . . . . . . . . . . . . . . . . . . . . 4-71 Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77
Warning lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32 Checking the washer fluid level . . . . . . . . . . . . . . . . 7-32
Welcome system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85 Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85
Welcome light (position light) . . . . . . . . . . . . . . . . . 4-85
Welcome light (room lamp, positon light) . . . . . . . . 4-85
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
4-21 Power window lock button. . . . . . . . . . . . . . . . . . . . 4-24
Power windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Windshield defrosting and defogging. . . . . . . . . . . . . 4-113 Automatic climate control system . . . . . . . . . . . . . 4-113
Defogging logic . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114V
W