tires KIA NIRO HYBRID EV 2021 Service Manual

751
Maintenance
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tires ability to
stop on wet pavement as measured
under controlled conditions on spec-
ified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perform-
ance.
The traction grade assigned to this
tire is based on straight-ahead brak-
ing traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction char-
acteristics.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 defini-
tions
Air Pressure:The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
kilopascal (kPa) or pounds per
square inch (psi).
Accessory Weight:This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, dual clutch trans-
mission, power seats, and air condi-
tioning.
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.

Maintenance
54 7
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.

755
Maintenance
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.
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.WARNING
Do not use summer tires at tem-
peratures below 7°C (45°F) or
when driving on snow or ice. At
temperatures below 7°C (45°F),
summer tires can lose elastici-
ty, and therefore traction and
braking power as well. Change
the tires on your vehicle to win-
ter or all-weather tires of the
same size as the standard tires
of the vehicle. Both types of
tires are identified by the M+S
(Mud and Snow) marking. Using
summer tires at very cold tem-
peratures could cause cracks to
form, thereby damaging the
tires permanently.

Maintenance
56 7
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.
CAUTION
Because the sidewall of the low
aspect ratio tire is shorter than
the normal, the wheel and tire of
the low aspect ratio tire is easi-
er to be damaged. So, follow the
instructions below.
When driving on a rough road
or off road, drive cautiously
because tires and wheels may
be damaged. And after driv-
ing, inspect tires and wheels.
When passing over a pothole,
speed bump, manhole, or curb
stone, drive slowly so that the
tires and wheels are not dam-
aged.
If the tire is impacted, we rec-
ommend that you inspect the
tire condition or contact an
authorized Kia dealer.
To prevent damage to the tire,
inspect the tire condition and
pressure every 3,000 km
(1,900 miles).

Specifications, Consumer information and Reporting safety defects
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Luggage volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . 8-7
Recommended lubricants and capacities . . . . . . . . 8-8
• Recommended SAE viscosity number. . . . . . . . . . . . . 8-9
Vehicle identification number (VIN) . . . . . . . . . . 8-10
Vehicle certification label. . . . . . . . . . . . . . . . . . . . 8-11
Tire specification and pressure label . . . . . . . . . . 8-11
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Air conditioner compressor label . . . . . . . . . . . . . 8-12
Reporting Safety Defects . . . . . . . . . . . . . . . . . . . 8-13
8

85
TIRES AND WHEELS
*1: Load Index
*2: Speed Symbol
*3: Normal load : Up to 3 persons
*4: Only for Hybrid Electric Vehicle (HEV)
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 them work irregularly.
ItemTire sizeWheel size
Load
CapacitySpeed
capacityInflation pressure [kPa (psi)]Wheel lug nut
torque
[Kgf·m
(lbf·ft, N·m)]
Normal load *3Maximum load
LI *1KgSS *2Km/hFront RearFront Rear
Full size tire205/60 R16 6.5J X 1692630H210250 (36)250 (36)11~13
(79 ~ 94,
107 ~ 127)225/45 R18 *47.5J X 1891615V240250 (36)250 (36)
Compact
Spare tireT125/80 D16 *44T X 1697730M130420 (60)420 (60)
Specifications, Consumer information and Reporting safety defects
✽ ✽
NOTICE
• It is permissible to add 21 kPa (3 psi) to the standard tire pressure specification if colder temperatures are expect-
ed soon.
Tires typically loose 7 kPa (1 psi) for every -11°C (12°F) temperature drop. If extreme temperature variations are
expected, re-check your tire pressure as necessary to keep them properly inflated.
• We recommend that when replacing tires, use the same originally supplied with the vehicles. If not, that affects
driving performance.
• When driving in high altitude grades, it is natural for the atmospheric pressure to decrease. Therefore, please
check the tire pressure and add more air when necessary.
Additionally required tire air pressure per km above sea level: 10.5 kPa (1.5psi)/km

811
Specifications, Consumer information and Reporting safety defects
The vehicle certification label
attached on the driver’s side center
pillar gives the vehicle identification
number (VIN).The tires supplied on your new vehi-
cle are chosen to provide the best
performance for normal driving.
The tire label located on the driver's
side center pillar gives the tire pres-
sures recommended for your vehicle.The engine number is stamped on the
engine block as shown in the drawing.
ENGINE NUMBER TIRE SPECIFICATION AND
PRESSURE LABEL
ODE086006L
ODE086003
ODE086002
VEHICLE CERTIFICATION
LABEL

I5
Index
Fuel requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Do not use methanol . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Fuel additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Gasoline containing alcohol and methanol . . . . . . . . 1-2
Operation in foreign countries . . . . . . . . . . . . . . . . . . 1-4
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-58
Engine compartment fuse replacement . . . . . . . . . . 7-61
Fuse/relay panel description. . . . . . . . . . . . . . . . . . . 7-64
Inner panel fuse replacement . . . . . . . . . . . . . . . . . . 7-59
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
HEV/PHEV powertrain . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Closing the hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Opening the hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
If An Accident Occurs . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
If the engine overheats . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
If the engine will not start . . . . . . . . . . . . . . . . . . . . . . . 6-4
If engine doesn't turn over or turns over slowly . . . . 6-4
If engine turns over normally but does not start . . . . 6-4If you have a flat tire (with spare tire) . . . . . . . . . . . . . 6-19
Changing tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Jack and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Removing and storing the spare tire . . . . . . . . . . . . 6-20
If you have a flat tire (with Tire Mobility Kit). . . . . . . 6-28
Checking the tire inflation pressure . . . . . . . . . . . . . 6-36
Components of the Tire Mobility Kit . . . . . . . . . . . 6-32
Distributing the sealant . . . . . . . . . . . . . . . . . . . . . . 6-35
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
Notes on the safe use of the Tire Mobility Kit . . . . 6-30
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Using the Tire Mobility Kit . . . . . . . . . . . . . . . . . . . 6-33
Important safety precautions . . . . . . . . . . . . . . . . . . . . . 3-2
Air bag hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Always wear your seat belt . . . . . . . . . . . . . . . . . . . . 3-2
Control your speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Driver distraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Keep your vehicle in safe condition. . . . . . . . . . . . . . 3-3
Restrain all children . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
In case of an emergency while driving . . . . . . . . . . . . . . 6-3
If the engine stalls at a crossroad or crossing . . . . . . 6-3
If the engine stalls while driving . . . . . . . . . . . . . . . . 6-3
If you have a flat tire while driving . . . . . . . . . . . . . . 6-3
Infotainment system . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
How vehicle radio works . . . . . . . . . . . . . . . . . . . . 4-183
USB port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
H
I
G

Index
10I
Tire specification and pressure label . . . . . . . . . . . . . . 8-11
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42, 8-5
All season tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54
Checking tire inflation pressure . . . . . . . . . . . . . . . . 7-43
Low aspect ratio tire. . . . . . . . . . . . . . . . . . . . . . . . . 7-56
Radial-ply tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Recommended cold tire inflation pressures . . . . . . . 7-42
Snow tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-55
Summer tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-54
Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-42
Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . 7-47
Tire terminology and definitions . . . . . . . . . . . . . . . 7-51
Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-47
Wheel alignment and tire balance . . . . . . . . . . . . . . 7-45
Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 7-46
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
Emergency towing . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
Removable towing hook. . . . . . . . . . . . . . . . . . . . . . 6-40
Towing service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-151Vehicle break-in process . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Vehicle certification label . . . . . . . . . . . . . . . . . . . . . . . 8-11
Vehicle data collection and event data recorders . . . . . . 1-6
Vehicle identification number (VIN) . . . . . . . . . . . . . . 8-10
Vehicle load limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-152
Certification label . . . . . . . . . . . . . . . . . . . . . . . . . . 5-155
Tire and loading information label. . . . . . . . . . . . . 5-152
Vehicle modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Vehicle weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-156
Base curb weight . . . . . . . . . . . . . . . . . . . . . . . . . . 5-156
Cargo weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-156
GAW (Gross Axle Weight). . . . . . . . . . . . . . . . . . . 5-156
GAWR (Gross Axle Weight Rating) . . . . . . . . . . . 5-156
GVW (Gross Vehicle Weight) . . . . . . . . . . . . . . . . 5-156
GVWR (Gross Vehicle Weight Rating) . . . . . . . . . 5-156
Vehicle curb weight . . . . . . . . . . . . . . . . . . . . . . . . 5-156
Warning and indicator lights. . . . . . . . . . . . . . . . . . . . 4-105
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-114
Warning lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-105
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Checking the washer fluid level . . . . . . . . . . . . . . . . 7-30V
W