2015 KIA Optima tire pressure

Maintenance
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Temperature -A, B & C
The temperature grades are A (the
highest), B and C representing the
tire's resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. Grades B and A
represent higher levels of perform-
ance on the laboratory test wheel
than the minimum required by law. 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.

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Maintenance
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.
Load Index: An assigned number
ranging from 1 to 279 that corre-
sponds to the load carrying capacity
of a tire.
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.
Maximum Loaded Vehicle Weight:
The sum of curb weight; accessory
weight; vehicle capacity weight; and
production options weight.
Normal Occupant Weight: The
number of occupants a vehicle is
designed to seat multiplied by 68 kg
(150 pounds). Occupant Distribution
: Designated
seating positions.
Outward Facing Sidewall: The side
of a asymmetrical tire that has a par-
ticular side that faces outward when
mounted on a vehicle. The outward
facing sidewall bears white lettering
or bears manufacturer, brand, and/or
model name molding that is higher or
deeper than the same moldings on
the inner facing sidewall.
Passenger (P-Metric) Tire : A tire
used on passenger cars and some
light duty trucks and multipurpose
vehicles.
Recommended Inflation Pressure :
Vehicle manufacturer's recommend-
ed tire inflation pressure and shown
on the tire placard.
Radial Ply Tire : A pneumatic tire in
which the ply cords that extend to the
beads are laid at 90 degrees to the
centerline of the tread.
Rim: A metal support for a tire and
upon which the tire beads are seat-
ed.
Sidewall: The portion of a tire
between the tread and the bead. Speed Rating: An alphanumeric
code assigned to a tire indicating the
maximum speed at which a tire can
operate.
Traction: The friction between the
tire and the road surface. The
amount of grip provided.
Tread: The portion of a tire that
comes into contact with the road.
Treadwear Indicators: Narrow
bands, sometimes called "wear
bars," that show across the tread of a
tire when only 2/32 inch of tread
remains.
UTQGS: Uniform Tire Quality
Grading Standards, a tire information
system that provides consumers with
ratings for a tire's traction, tempera-
ture and treadwear. Ratings are
determined by tire manufacturers
using government testing proce-
dures. The ratings are molded into
the sidewall of the tire.
Vehicle Capacity Weight
: The num-
ber of designated seating positions
multiplied by 68 kg (150 lbs.) plus the
rated cargo and luggage load.

Maintenance
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Vehicle Maximum Load on the
Tire: Load on an individual tire due to
curb and accessory weight plus
maximum occupant and cargo
weight.
Vehicle Normal Load on the Tire:
Load on an individual tire that is
determined by distributing to each
axle its share of the curb weight,
accessory weight, and normal occu-
pant weight and driving by 2.
Vehicle Placard: A label permanent-
ly attached to a vehicle showing the
original equipment tire size and rec-
ommended inflation pressure.All season tires
Kia specifies all season tires on
some models to provide good per-
formance for use all year round,
including snowy and icy road condi-
tions. All season tires are identified
by ALL SEASON and/or M+S (Mud
and Snow) on the tire sidewall. Snow
tires have better snow traction than
all season tires and may be more
appropriate in some areas.
Summer tires
Kia specifies summer tires on some
models to provide superior perform-
ance on dry roads. Summer tire per-
formance is substantially reduced in
snow and ice. Summer tires do not
have the tire traction rating M+S
(Mud and Snow) on the tire side wall.
If you plan to operate your vehicle in
snowy or icy conditions, Kia recom-
mends the use of snow tires or all
season tires on all four wheels.
Snow tires
If you equip your car with snow tires,
they should be the same size and
have the same load capacity as the
original tires. Snow tires should be
installed on all four wheels; other-
wise, poor handling may result.
Snow tires should carry 28 kPa (4
psi) more air pressure than the pres-
sure recommended for the standard
tires on the tire label on the driver's
side of the center pillar, or up to the
maximum pressure shown on the tire
sidewall, whichever is less.
Do not drive faster than 120 km/h (75
mph) when your vehicle is equipped
with snow tires.

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Maintenance
Radial-ply tires
Radial-ply tires provide improved
tread life, road hazard resistance and
smoother high speed ride. The radi-
al-ply tires used on this vehicle are
of belted construction and are select-
ed to complement the ride and han-
dling characteristics of your vehicle.
Radial-ply tires have the same load
carrying capacity as bias-ply or bias
belted tires of the same size and use
the same recommended inflation
pressure. Mixing of radial-ply tires
with bias-ply or bias belted tires is
not recommended. Any combina-
tions of radial-ply and bias-ply or bias
belted tires when used on the same
vehicle will seriously deteriorate
vehicle handling. The best rule to fol-
low is: identical radial-ply tires should
always be used as a set of four.Longer wearing tires can be more
susceptible to irregular tread wear. It
is very important to follow the tire
rotation interval shown in this section
to achieve the tread life potential of
these tires. Cuts and punctures in
radial-ply tires are repairable only in
the tread area, because of sidewall
flexing. Consult your tire dealer for
radial-ply tire repairs.
Low aspect ratio tire
(if equipped)
Low aspect ratio tires, whose aspect
ratio is lower than 50, are provided
for sporty looks.
Because the low aspect ratio tires
are optimized for handling and brak-
ing, it may be more uncomfortable to
ride in and there is more noise com-
pare with normal tires.

Maintenance
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CAUTION
Because the sidewall of the low
aspect ratio tire is shorter thanthe normal, the wheel and tire ofthe low aspect ratio tire is easi-er to be damaged. So, follow theinstructions below.
- When driving on a rough road or off road, drive cautiouslybecause tires and wheels maybe damaged. And after driv-ing, inspect tires and wheels.
- When passing over a pothole, speed bump, manhole, or curbstone, drive slowly so that thetires and wheels are not dam-aged.
- If the tire is impacted, we rec- ommend that you inspect thetire condition or contact anauthorized Kia dealer.
- To prevent damage to the tire, inspect the tire condition andpressure every 3,000 km(1,900 miles).
CAUTION
It is not easy to recognize the tire damage with your owneyes. But if there is the slight-est hint of tire damage, eventhough you cannot see the tiredamage with your own eyes,have the tire checked orreplaced because the tiredamage may cause air leak-age from the tire.
If the tire is damaged by driv- ing on a rough road, off road,pothole, manhole, or curbstone, it will not be covered bythe warranty.
You can find out the tire infor- mation on the tire sidewall.

Maintenance
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Description Fuse Rating Protected Component
BRAKE SWITCH 10A Smart Key Control Module, Start Stop Button Switch, FOB Holder, Stop Lamp Switch
MEMORY 1 10ASEAT EXTN (IMS), DR_TRIM_EXTN (FOLD’G), CLUSTER, A/CON, ECM, AUTO FOLDING RLY,
TPMS, POWER OUTLET, A_L_PHOTO_SNSR, MUT
SUNROOF 20A Panorama Sunroof
S/HEATER(FRT)
SEAT VERNT(FRT) 20A SEAT_EXTN (HEAT/VENT)
SPARE 10A -
A/BAG IND 10A Instrument Cluster
MODULE 3 10A Sport Mode Switch, Key Solenoid (W/O Smart Key)
MODULE 4 10ADriver/Passenger CCS Control Module (With CCS), Driver/Passenger Seat Warmer Module (W/O
CCS), Front Seat Warmer & CCS Switch, Oil Pump Inverter, ISG Low DC-DC Converter, Tire Pressure
Monitoring Module
A/BAG 15A A/BAG UNIT IG1 , WCS_PASS IG1
INTERIOR LAMP 10A Driver/Passenger Smart Key Outside Handle (With Smart Key), Driver/Passenger Door Lamp, A/C
Control Module, Ignition Key ILL. & Door Warning Switch (W/O Smart Key), RF Receiver (With Smart
Key), Driver IMS Module, BCM, Data Link Connector, Driver/Passenger Door Scuff Lamp, Power
Outside Mirror Switch, Auto Light & Photo Sensor (W/O B/Alarm), Lamp Auto Cut Relay, Instrument
Cluster
CLUSTER 10A CLUSTER (IGN1)
MDPS 7.5ACrash Pad Switch, EPS Control Module (With MDPS), Steering Angle Sensor (W/O MDPS),
ATM Lever Indicator, EPB Switch, EPB Control Module
PDM 3 7.5A Smart Key Control Module (With Smart Key)

Specifications & Consumer information
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-2
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Luggage volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . 8-3
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Recommended lubricants and capacities . . . . . . . 8-6
• Recommended SAE viscosity number. . . . . . . . . . . . . 8-8
Vehicle identification number (VIN) . . . . . . . . . . . 8-9
Vehicle certification label. . . . . . . . . . . . . . . . . . . . . 8-9
Tire specification and pressure label . . . . . . . . . . 8-10
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8

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Specifications & Consumer information
TIRES AND WHEELS
CAUTION
When replacing tires, use the same size originally supplied with the vehicle.Using tires of a different size can damage the related parts or make it work irregularly.
*1 : Normal load : Up to 3 persons
*2 : If your vehicle is not equipped with a compact spare tire, you will be equipped with a Tire Mobility Kit
Inflation pressure
kPa (psi)
Front Rear Front Rear
205/65R16 95H 6.5J×16 235 (34) 235 (34) 235 (34) 235 (34)
P215/55R17 93V 6.5J×17 235 (34) 235 (34) 235 (34) 235 (34) 225/45R18 95V 7.5J×18 240 (35) 240 (35) 240 (35) 240 (35)
T125/80D16 97M 4.0T×16 420 420 420 420
(60) (60) (60) (60)
T135/80D17 103M 4.0T×17 420 420 420 420
(60) (60) (60) (60)
Full size tire
Compact
spare tire
*2
Wheel lug nut torque
kg•m (lb N
9~11
(65~79, 88~107)
Item
Tire
size Wheel size
Normal load
*1Maximum load