tire size INFINITI QX30 2017 User Guide

WARNING TRIANGLE (IF EQUIPPED)
Removing and refitting the warning
triangle
To remove:
1. Open the lift gate and lift the luggage
compartment floor upwards.2. To release warning triangle, push back the
retainers on the bracket.
3. Remove warning triangle
1from the
bracket.
To refit:
1. Place warning triangle
1back into the
bracket and push down to secure.
2. Fold down the luggage compartment floor.
3. Close the lift gate.
Setting up the warning triangle
1. Fold legs out to the side.
2. Fold side reflectors upwards to form a
triangle and lock them at the top using press
stud.
RUN-FLAT TIRES
With special run-flat tires, you can continue to
drive your vehicle even if there is a total loss of
pressure in one or more tires. The affected tire
must not show any clearly visible damage.
You can recognise run-flat tires by the marking
which appears on the tire side wall. You will
find this marking next to the tire size designa-
tion, the load-bearing capacity and the speed
index.Run-flat tires may only be used in conjunction
with an activated tire pressure loss warning
system or tire pressure monitor.
Pressure loss warning message
If a pressure loss warning message appears in
the vehicle information display:
•Observe the instructions in the display
messages.
•Check the tire for damage.
•If driving on, observe the following notes.
The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the ve-
hicle is partially laden and approximately 20
miles (30 km) when the vehicle is fully laden.
In addition to the vehicle load, the driving
distance possible depends upon:
•Vehicle speed.
•Road condition.
•Outside temperature.
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions/
maneuvers, or it can be increased through a
moderate style of driving.NIC2686
6-4In case of emergency

The driving distance possible in run-flat mode is
counted from the moment the tire pressure loss
warning appears in the vehicle information dis-
play.
You must not exceed a maximum speed of 50
MPH (80 km/h).
When replacing one or all tires, observe the
following specifications for your vehicle’s tires:
•Size
•Type
•Run-flat mark
If a tire has gone flat and cannot be replaced
with a run flat tire, a standard tire may be used
as a temporary measure. Make sure that you
use the proper size and type (summer or winter
tire).
WARNING
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, pot holes,
off road). This applies in particular to a laden
vehicle.
Stop driving in emergency mode if:
•You hear banging noises.
•The vehicle starts to shake.
•You see smoke and smell rubber.
•VDC is intervening constantly.
•There are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked with regard to their further
use. It is recommended you visit an INFINITI
retailer for this service. The faulty tire must be
replaced.
REMOVING AND FITTING WHEELS
NOTE
A spare wheel is not provided with your vehicle.
Blocking the wheels
WARNING
Make sure to block the appropriate wheel to
prevent the vehicle from moving, which may
cause personal injury.
Place suitable blocks
1in front of and behind
the wheel diagonally opposite the flat tire
Ato
prevent the vehicle from moving when it is on
the jack.
MCE0001DZ
In case of emergency6-5

Tire and Loading Information label
1Seating capacity: The maximum number
of occupants that can be seated in the
vehicle.
2Vehicle load limit: SeeVehicle loading
informationin the10. Technical infor-
mationsection.
3Original size: The size of the tires origi-
nally installed on the vehicle at the fac-
tory.
4Cold tire pressure: Inflate the tires to
this pressure when the tires are cold.
Tires are considered COLD after the ve-
hicle has been parked for 3 or more
hours, or driven less than 1 mile (1.6 km)
at moderate speeds. The recommended
cold tire inflation is set by the manufac-
turer to provide the best balance of tire
wear, vehicle handling, driveability, tire
noise, etc., up to the vehicle’s GVWR.
5Tire size — seeTire labelinglater in
this section.
6Spare tire size or compact spare tire
size (if so equipped).
SDI2703
8-28Do-it-yourself

TIRE INFLATION PRESSURE
Checking tire pressure
1. Remove the valve stem cap from the tire.
2. Press the pressure gauge squarely onto the
valve stem. Do not press too hard or force
the valve stem sideways, or air will escape. If
the hissing sound of air escaping from the
tire is heard while checking the pressure,
reposition the gauge to eliminate this leak-
age.3. Remove the gauge.
4. Read the tire pressure on the gauge stem
and compare it to the specification shown on
the Tire and Loading Information label.
5. Add air to the tire as needed. If too much air
is added, press the core of the valve stem
briefly with the tip of the gauge stem to
release pressure. Recheck the pressure and
add or release air as needed.
6. Install the valve stem cap.
7. Check the pressure of all other tires, includ-
ing the spare.
Size Cold tire infla-
tion pressure
Front
original
tire235/50 R18 (2WD) 35 psi, 240kPa
235/50 R18
(4WD/AWD)35 psi, 240kPa
235/45 R19 (2WD 32 psi, 220kPa
Rear
original
tire235/50 R18 (2WD) 32 psi, 220kPa
235/50 R18
(4WD/AWD)35 psi, 240kPa
235/45 R19 (2WD 32 psi, 220kPa
Spare tire NONE
SDI1949Z
Do-it-yourself8-29

TIRE LABELING
Federal law requires tire manufacturers to place
standardized information on the sidewall of all
tires. This information identifies and describes
the fundamental characteristics of the tire and
also provides the tire identification number
(TIN) for safety standard certification. The TIN
can be used to identify the tire in case of a
recall.
1Tire size (example: P215/60R16 94H)
1 P: The “P” indicates the tire is designed for
passenger vehicles. (Not all tires have this
information.)
2 Three-digit number (215): This number
gives the width in millimeters of the tire
from sidewall edge to sidewall edge.
3 Two-digit number (60): This number,
known as the aspect ratio, gives the tire’s
ratio of height to width.
4 R: The “R” stands for radial.
5 Two-digit number (16): This number is the
wheel or rim diameter in inches.
6 Two- or three-digit number (94): This num-
ber is the tire’s load index. It is a mea-
surement of how much weight each tire
can support. You may not find this infor-
mation on all tires because it is not re-
quired by law.7 H: Tire speed rating. You should not drive
the vehicle faster than the tire speed rat-
ing.
SDI1575ZExampleSDI1606ZExample
8-30Do-it-yourself

2TIN (Tire Identification Number) for a
new tire (example: DOT XX XX XXX XXXX)
1 DOT: Abbreviation for the “Department of
Transportation”. The symbol can be placed
above, below or to the left or right of the
Tire Identification Number.
2 Two-digit code: Manufacturer’s identifica-
tion mark
3 Two-digit code: Tire size
4 Three-digit code: Tire type code (Optional)
5 Four numbers represent the week and year
the tire was built. For example, the num-
bers 3103 means the 31st week of 2003. If
these numbers are missing, then look on
the other sidewall of the tire.
3Tire ply composition and material
The number of layers or plies of rubber-
coated fabric in the tire. Tire manufactur-
ers also must indicate the materials in the
tire, which include steel, nylon, polyester,
and others.
4Maximum permissible inflation pressure
This number is the greatest amount of air
pressure that should be put in the tire. Do
not exceed the maximum permissible in-
flation pressure.
5Maximum load rating
This number indicates the maximum load
in kilograms and pounds that can be
carried by the tire. When replacing the
tires on the vehicle, always use a tire that
has the same load rating as the factory
installed tire.
6Term of “tubeless” or “tube type”
Indicates whether the tire requires an
inner tube (“tube type”) or not (“tube-
less”).
7The word “radial”
The word “radial” is shown, if the tire has
radial structure.
8Manufacturer or brand name”
Manufacturer or brand name is shown.
Other tire-related terminology:
In addition to the many terms that are defined
throughout this section, Intended Outboard
Sidewall is (1) the sidewall that contains a
whitewall, bears white lettering or bears manu-
facturer, brand and/or model name molding
that is higher or deeper than the same molding
on the other sidewall of the tire, or (2) the
outward facing sidewall of an asymmetrical tire
that has a particular side that must always face
outward when mounted on a vehicle.
TYPES OF TIRES
WARNING
•When changing or replacing tires, be sure
all four tires are of the same type (i.e, sum-
mer, all season or snow) and construction.
An INFINITI retailer may be able to help you
with information about tire type, size, speed
rating and availability.
•Replacement tires may have a lower speed
rating than the factory equipped tires, and
they may not match the potential maximum
vehicle speed. Never exceed the maximum
speed rating of the tire.
NDI1623Example
Do-it-yourself8-31

•Always use tires of the same type, size,
brand, construction and tread pattern on all
four wheels. Failure to do so may result in a
circumference difference between tires on
the front and rear axles which can cause the
Vehicle Dynamic Control (VDC) system to
malfunction resulting in personal injury or
death, excessive tire wear and may damage
the transmission, transfer case and differ-
ential gears.
•For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information“ (Canada)
in the Warranty Information Booklet.
CAUTION
ONLY use spare tires specified for the model.
If excessive tire wear is found, it is recom-
mended that all four tires be replaced with tires
of the same size, brand, construction and tread
pattern. The tire pressure and wheel alignment
should also be checked and corrected as nec-
essary. It is recommended that you visit an
INFINITI retailer for this service.
All season tires
INFINITI specifies all season tires on some
models to provide good performance all year,
including snowy and icy road conditions. All
season tires are identified by ALL SEASON
and/or M&S on the tire sidewall. Snow tires
have better snow traction than all season tires
and may be more appropriate in some areas.
Summer tires
INFINITI specifies summer tires on some models
to provide superior performance on dry roads.
Summer tire performance is substantially re-
duced in snow and ice. Summer tires do not
have the tire traction rating M&S on the tire
sidewall.
If you plan to operate your vehicle in snowy or
icy conditions, INFINITI recommends the use of
snow or all season tires on all four wheels.
Snow tires
If snow tires are needed, it is necessary to
select tires equivalent in size and load rating to
the original equipment tires. If you do not, it can
adversely affect the safety and handling of your
vehicle.Generally, snow tires have lower speed ratings
than factory equipped tires and may not match
the potential maximum vehicle speed. Never
exceed the maximum speed rating of the tire. If
you install snow tires, they must be the same
size, brand, construction and tread pattern on
all four wheels.
For additional traction on icy roads, studded
tires may be used. However, some U.S. states
and Canadian provinces prohibit their use.
Check local, state and provincial laws before
installing studded tires. Skid and traction capa-
bilities of studded snow tires on wet or dry
surfaces may be poorer than that of non-
studded snow tires.
Four-Wheel Drive (4WD) models
If excessive tire wear is found, it is recom-
mended that all four tires be replaced with tires
of the same size, brand, construction and tread
pattern. The tire pressure and wheel alignment
should also be checked and corrected as nec-
essary. It is recommended that you visit an
INFINITI retailer.
8-32Do-it-yourself

TIRE CHAINS
CAUTION
Tire chains/cables should not be installed on
235/45 R19 or 235/50 R18 size tires. Installa-
tion of the tire chains/cables on 235/45 R19 or
235/50 R18 size tires will cause damage to the
vehicle. If you plan to use tire chains/cables,
you should install 215/60 R17 size tires on your
vehicle.
Use of tire chains may be prohibited according
to location. Check the local laws before install-
ing tire chains. When installing tire chains,
make sure that they are of proper size for the
tires on your vehicle and are installed according
to the chain manufacturer’s instructions.
Use chain tensioners when recommended by
the tire chain manufacturer to ensure a tight fit.
Loose end links of the tire chains must be
secured or removed to prevent the possibility of
whipping action damage to the fenders or un-
derbody. If possible, avoid fully loading your
vehicle when using tire chains. In addition,
drive at a reduced speed. Otherwise, your ve-
hicle may be damaged and/or vehicle handling
and performance may be adversely affected.
Tire chains must be installed only on the front
wheels and not on the rear wheels.Never install tire chains on a T-type spare tire
(TEMPORARY USE ONLY).
Do not drive with tire chains on paved roads
which are clear of snow. Driving with chains in
such conditions can cause damage to the vari-
ous mechanisms of the vehicle due to some
overstress.
1: Wear indicator
2: Location mark
TIRE WEAR AND DAMAGE
WARNING
•Tires should be periodically inspected for
wear, cracking, bulging or objects caught in
the tread. If excessive wear, cracks, bulging
or deep cuts are found, the tire should be
replaced immediately.
•The original tires have a built-in tread wear
indicator. When the wear indicator is vis-
ible, the tire should be replaced.
SDI1663Z
Do-it-yourself8-33

•Tires degrade with age and use. Have tires,
including the spare, over 6 years old
checked by a qualified technician because
some tire damage may not be obvious. Re-
place the tires as necessary to prevent tire
failure and possible personal injury.
•Improper service of the spare tire may re-
sult in serious personal injury. If it is neces-
sary to repair the spare tire, it is recom-
mended that you visit an INFINITI retailer for
this service.
•For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada)
in the Warranty Information Booklet.
Tires should be periodically inspected for wear,
cracking, bulging or objects caught in the tread. If
excessive wear, cracks, bulging or deep cuts are
found, the tire should be replaced immediately.
The original tires have a built-in tread wear
indicator. When the wear indicator is visible,
the tire should be replaced.
Improper servicing of a tire may result in seri-
ous personal injury. If it is necessary to repair a
tire, it is recommended you contact an INFINITI
retailer.
TIRE ROTATION
INFINITI recommends rotating the tires every
5,000 miles (8,000 km).
For additional information on tire replacing
procedures, refer toFlat tirein the6. In case
of emergencysection.As soon as possible,
tighten the wheel nuts to the specified torque
with a torque wrench.
Wheel nut tightening torque: 96 ft-lb (130 N·m)
The wheel nuts must be kept tightened to speci-
fications at all times. It is recommended that
wheel nuts be tightened to specification at each
tire rotation interval.
WARNING
•After rotating the tires, check and adjust
the tire pressure.
•Do not include the spare tire in the tire
rotation.
•For additional information regarding tires,
refer toImportant Tire Safety Information
(US) orTire Safety Informationin the War-
ranty Information Booklet.
REPLACING WHEELS AND TIRES
WARNING
Do not install a deformed wheel or tire even if it
has been repaired. Such wheels or tires could
have structural damage and could fail without
warning.
When replacing a tire, use the same size, speed
rating and load carrying capacity as originally
equipped. (SeeWheels and Tiresin the9.
Maintenance and SchedulesMaintenance and
Schedulessection for recommended types and
sizes of tires and wheels.)
If the wheels are changed for any reason,
always replace with wheels which have the
same offset dimension. Wheels of a different
offset could cause early tire wear, possibly
degraded vehicle handling characteristics
and/or interference with the brake discs/
drums. Such interference can lead to decreased
braking efficiency and/or early brake pad/shoe
wear.
8-34Do-it-yourself

Confirm the following for the TPMS:
WARNING
•The use of tires other than those recom-
mended or the mixed use of tires of different
brands, construction (bias, bias-belted or
radial), or tread patterns can adversely af-
fect the ride, braking, handling, VDC sys-
tem, ground clearance, body-to-tire clear-
ance, tire chain clearance, speedometer
calibration, headlight aim and bumper
height. Some of these effects may lead to
accidents and could result in serious per-
sonal injury.
•For 2WD models, if your vehicle was origi-
nally equipped with 4 tires that were the
same size and you are only replacing 2 of
the 4 tires, install the new tires on the rear
axle. Placing new tires on the front axle may
cause loss of vehicle control in some driving
conditions and cause an accident and per-
sonal injury.
•If the wheels are changed for any reason,
always replace with wheels which have the
same off-set dimension. Wheels of a differ-
ent off-set could cause premature tire wear,
degrade vehicle handling characteristics,
affect the VDC system and/or interferencewith the brake discs. Such interference can
lead to decreased braking efficiency and/or
early brake pad wear. For additional infor-
mation on wheel off-set dimensions, refer to
Wheels and Tiresin the9. Maintenance
and Schedulessection.
•When a replacement tire is mounted or a
wheel is replaced, the TPMS will not func-
tion and the low tire pressure warning light
will flash for approximately 1 minute. The
light will remain on after 1 minute. Contact
an INFINITI retailer as soon as possible for
tire replacement and/or system resetting.
•Replacing tires with those not originally
specified by INFINITI could affect the proper
operation of the TPMS.
•The TPMS sensor may be damaged if it is
not handled correctly. Be careful when han-
dling the TPMS sensor.
•When replacing the TPMS sensor, the ID
registration may be required. It is recom-
mended that you visit an INFINITI retailer for
ID registration.
•Do not use a valve stem cap that is not
specified by INFINITI. The valve stem cap
may become stuck.
•Be sure that the valve stem caps are cor-
rectly fitted. Otherwise the valve may be
clogged up with dirt and cause a malfunc-
tion or loss of pressure.
•Do not install a damaged or deformed wheel
or tire even if it has been repaired. Such
wheels or tires could have structural dam-
age and could fail without warning.
•The use of retread tires is not recom-
mended.
•For additional information regarding tires,
refer toImportant Tire Safety Information
(US) orTire Safety Information(Canada) in
the Warranty Information Booklet.
Care of wheels
•Wash the wheels when washing the vehicle
to maintain their appearance.
•Clean the inner side of the wheels when the
wheel is changed or the underside of the
vehicle is washed.
•Do not use abrasive cleaners when washing
the wheels.
•Inspect wheel rims regularly for dents or
corrosion. Such damage may cause loss of
pressure or poor seal at the tire bead.
Do-it-yourself8-35