2018 KIA OPTIMA PHEV fuel

Driving your vehicle
90
6
Remember, your vehicle does not
require extended warm-up. After
the engine has started, allow the
engine to run for 10 to 20 seconds
prior to placing the vehicle in gear.
In very cold weather, however, give
your engine a slightly longer warm-
up period.
Don't "lug" or "over-rev" the engine. Lugging is driving too slowly in a
very high gear resulting in engine
bucking. If this happens, shift to a
lower gear. Over-revving is racing
the engine beyond its safe limit.
This can be avoided by shifting at
the recommended speed. Use your air conditioning sparingly.
The air conditioning system is
operated by engine power so your
fuel economy is reduced when you
use it.
Open windows at high speeds can reduce fuel economy.
Fuel economy is less in crosswinds and headwinds. To help offset
some of this loss, slow down when
driving in these conditions.
Keeping a vehicle in good operating
condition is important both for econ-
omy and safety. Therefore, have an
authorized Kia dealer perform
scheduled inspections and mainte-
nance.
WARNING - Engine off during motion
Never turn the engine off to
coast down hills or anytime the
vehicle is in motion. The power
steering and power brakes will
not function properly without the
engine running. In addition, turn-
ing off the engine start/stop but-
ton while driving could engage
the steering wheel lock resulting
in loss of vehicle steering. Keep
the engine on and downshift to
an appropriate gear for an
engine braking effect.

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.

Driving your vehicle
102
6
Certification label
The certification label is located on
the driver's door sill at the center pillar.
This label shows the maximum allow-
able weight of the fully loaded vehi-
cle. This is called the GVWR (Gross
Vehicle Weight Rating). The GVWR
includes the weight of the vehicle, all
occupants, fuel and cargo.
This label also tells you the maxi-
mum weight that can be supported
by the front and rear axles, called
Gross Axle Weight Rating (GAWR). To find out the actual loads on your
front and rear axles, you need to go to
a weigh station and weigh your vehi-
cle. Your dealer can help you with this.
Be sure to spread out your load equal-
ly on both sides of the centerline.
The label will help you decide how
much cargo and installed equipment
your vehicle can carry.
If you carry items inside your vehicle
- like suitcases, tools, packages, or
anything else - they are moving as
fast as the vehicle. If you have to stop
or turn quickly, or if there is a crash,
the items will keep going and can
cause an injury if they strike the driv-
er or a passenger.
✽ ✽
NOTICE
Overloading your vehicle may cause
damage. Repairs would not be cov-
ered by your warranty. Do not over-
load your vehicle.OJFA055280
WARNING -Over loading
Never exceed the GVWR for
your vehicle, the GAWR for
either the front or rear axle and
vehicle capacity weight.
Exceeding these ratings can
affect your vehicle’s handling
and braking ability.
WARNING - Over loading
Do not overload your vehicle.
Overloading your vehicle can
cause heat buildup in your vehi-
cle's tires and possible tire fail-
ure, increased stopping dis-
tances and poor vehicle han-
dling--all of which may result in
a crash.

6103
Driving your vehicle
VEHICLE WEIGHT
This chapter will guide you in the
proper loading of your vehicle and/or
trailer, to keep your loaded vehicle
weight within its design rating capa-
bility, with or without a trailer. Properly
loading your vehicle will provide max-
imum return of the vehicle design
performance. Before loading your
vehicle, familiarize yourself with the
following terms for determining your
vehicle's weight ratings, with or with-
out a trailer, from the vehicle's speci-
fications and the compliance label:Base curb weight
This is the weight of the vehicle
including a full tank of fuel and all
standard equipment. It does not
include passengers, cargo, or option-
al equipment.
Vehicle curb weight
This is the weight of your new vehicle
when you picked it up from your deal-
er plus any aftermarket equipment.
Cargo weight
This figure includes all weight added
to the Base Curb Weight, including
cargo and optional equipment.
GAW (Gross axle weight)
This is the total weight placed on
each axle (front and rear) - including
vehicle curb weight and all payload.
GAWR
(Gross axle weight rating)
This is the maximum allowable
weight that can be carried by a single
axle (front or rear). These numbers
are shown on the compliance label.
The total load on each axle must
never exceed its GAWR.
GVW (Gross vehicle weight)
This is the Base Curb Weight plus
actual Cargo Weight plus passen-
gers.
GVWR
(Gross vehicle weight rating)
This is the maximum allowable
weight of the fully loaded vehicle
(including all options, equipment,
passengers and cargo). The GVWR
is shown on the certification label
located on the driver’s door sill.

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.

What to do in an emergency
10
7
Each tire, including the spare (if pro-
vided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehi-
cle manufacturer on the vehicle plac-
ard or tire inflation pressure label. (If
your vehicle has tires of a different
size than the size indicated on the
vehicle placard or tire inflation pres-
sure label, you should determine the
proper tire inflation pressure for
those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your
tires is significantly under-inflated.
Accordingly, when the low tire pres-
sure telltale illuminates, you should
stop and check your tires as soon as
possible, and inflate them to the
proper pressure. Driving on a signifi-
cantly under-inflated tire causes the
tire to overheat and can lead to tire
failure. Under-inflation also reduces
fuel efficiency and tire tread life, and
may affect the vehicle’s handling and
stopping ability. Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the
level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly. The TPMS mal-
function indicator is combined with
the low tire pressure telltale. When
the system detects a malfunction,
the telltale will flash for approximate-
ly one minute and then remain con-
tinuously illuminated. This sequence
will continue upon subsequent vehi-
cle start-ups as long as the malfunc-
tion exists. When the malfunction
indicator is illuminated, the system
may not be able to detect or signal
low tire pressure as intended. TPMS
malfunctions may occur for a variety
of reasons, including the installation
of replacement, alternate tires or
wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or alter-
nate tires and wheels allow the
TPMS to continue to function proper-
ly.

• All season tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
• Summer tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
• Snow tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-\
57
• Tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57\
• Radial-ply tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
• Low aspect ratio tire(if equipped) . . . . . . . . . . . . . . . 8-58
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-60
• Inner panel fuse replacement . . . . . . . . . . . . . . . . . . . 8-61
• Engine compartment fuse replacement. . . . . . . . . . . 8-63
• Fuse/relay panel description. . . . . . . . . . . . . . . . . . . . 8-66
Light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-80
• Bulb replacement precaution . . . . . . . . . . . . . . . . . . 8-80
• Light bulb position (Front). . . . . . . . . . . . . . . . . . . . . 8-81
• Light bulb position (Rear) . . . . . . . . . . . . . . . . . . . . . 8-81
• Light bulb position (Side) . . . . . . . . . . . . . . . . . . . . . . 8-82
• Headlamp (HID type) bulb replacement(For Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-82
• Headlamp (Low beam) bulb replacement (For Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-83
• Headlamp (High beam) bulb replacement (For Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-84
• Headlamp (Low/High beam,LED type) bulb replacement (For Plug-in Hybrid) . . . . . . . . . 8-85
• Front turn signal lamp bulb replacement . . . . . . . . 8-85
• Position lamp + DRL (LED type) bulb replacement . . 8-86• Side repeater lamp bulb replacement . . . . . . . . . . . . 8-87
• Rear turn signal lamp bulb replacement . . . . . . . . . 8-87
• Stop and tail lamp (LED type) bulb replacement . . 8-88
• Back-up lamp bulb replacement . . . . . . . . . . . . . . . . 8-89
• License plate lamp bulb replacement . . . . . . . . . . . . 8-90
• High mounted stop lamp bulb replacement . . . . . . . 8-90
• Map lamp bulb replacement . . . . . . . . . . . . . . . . . . . 8-91
• Vanity mirror lamp bulb replacement . . . . . . . . . . . 8-91
• Room lamp bulb replacement . . . . . . . . . . . . . . . . . . 8-92
• Personal lamp bulb replacement . . . . . . . . . . . . . . . . 8-92
• Glove box lamp bulb replacement . . . . . . . . . . . . . . 8-93
• Trunk lamp bulb replacement . . . . . . . . . . . . . . . . . 8-93Appearance care . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
• Exterior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
• Interior care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
Emission control system . . . . . . . . . . . . . . . . . . . 8-102
• Crankcase emission control system . . . . . . . . . . . . . 8-102
• Evaporative emission control (including ORVR:
Onboard Refueling Vapor Recovery) system . . . . 8-102
• Exhaust emission control system . . . . . . . . . . . . . . . 8-103
California perchlorate notice . . . . . . . . . . . . . . . 8-1058

Maintenance
68
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.
WARNING
When you open the engine
hood, turn the Hybrid system
off. If not, it may result in death
or serious injury because of the
high voltage flow.