2018 INFINITI QX30 tire size

installing studded tires. Skid and traction ca-
pabilities 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 necessary. It is recommended
that you visit an INFINITI retailer.
TIRE CHAINS
CAUTION
Tire chains/cables should not be installed
on 235/45 R19 or 235/50 R18 size tires.
Installation 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 accord-
ing to location. Check the local laws before
installing 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 in-
structions.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
underbody. If possible, avoid fully loading
your vehicle when using tire chains. In addi-
tion, drive at a reduced speed. Otherwise,
your vehicle 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
various 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 visible, 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 be-
cause some tire damage may not be ob-
vious. Replace the tires as necessary to
prevent tire failure and possible per-
sonal injury.
•Improper service of the spare tire may
result in serious personal injury. If it is
necessary to repair the spare tire, it is
recommended that you visit an INFINITI
retailer for this service.
•For additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Infor-
mation” (Canada) in the Warranty In-
formation 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 se-
rious personal injury. If it is necessary to re-pair a tire, it is recommended you contact an
INFINITI retailer.
TIRE ROTATION
INFINITI recommends rotating the tires ev-
ery 5,000 miles (8,000 km).
For additional information on tire replacing
procedures, refer to "Flat tire".As soon as
possible, tighten the wheel nuts to the speci-
fied torque with a torque wrench.
Wheel nut tightening torque: 96 ft-lb
(130 N·m)
The wheel nuts must be kept tightened to
specifications 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 ad-
just the tire pressure.
•Do not include the spare tire in the tire
rotation.
•For additional information regarding
tires, refer to "Important Tire Safety
Information" (US) or "Tire Safety Infor-
mation" in the Warranty 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. (See "Wheels and Tires"
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 de-
creased braking efficiency and/or early brake
pad/shoe wear.
Confirm the following for the TPMS:
WARNING
•The use of tires other than those recom-
mended or the mixed use of tires of dif-
ferent brands, construction (bias, bias-
belted or radial), or tread patterns can
8-34Do-it-yourself

adversely affect the ride, braking, han-
dling, VDC system, ground clearance,
body-to-tire clearance, tire chain clear-
ance, speedometer calibration, head-
light aim and bumper height. Some of
these effects may lead to accidents and
could result in serious personal injury.
•For 2WD models, if your vehicle was
originally equipped with 4 tires that
were the same size and you are only re-
placing 2 of the 4 tires, install the new
tires on the rear axle. Placing new tires
on the front axle may cause loss of ve-
hicle control in some driving conditions
and cause an accident and personal in-
jury.
•If the wheels are changed for any rea-
son, always replace with wheels which
have the same offset dimension. Wheels
of a different offset could cause prema-
ture tire wear, degrade vehicle handling
characteristics, affect the VDC system
and/or interference with the brake
discs. Such interference can lead to de-
creased braking efficiency and/or early
brake pad wear. For additional informa-
tion on wheel offset dimensions, refer to
"Wheels and Tires".
•When a replacement tire is mounted or a
wheel is replaced, the TPMS will not
function and the low tire pressure warn-
ing 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
handling the TPMS sensor.
•When replacing the TPMS sensor, the ID
registration may be required. It is rec-
ommended that you visit an INFINITI re-
tailer 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 mal-
function 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 struc-
tural damage and could fail without
warning.
•The use of retread tires is not recom-
mended.
•For additional information regarding
tires, refer to "Important Tire Safety
Information" (US) or "Tire Safety Infor-
mation" (Canada) in the Warranty In-
formation Booklet.
Care of wheels
•Wash the wheels when washing the ve-
hicle 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 wash-
ing the wheels.
•Inspect wheel rims regularly for dents or
corrosion. Such damage may cause loss of
pressure or poor seal at the tire bead.
•INFINITI recommends waxing the road
wheels to protect against road salt in ar-
eas where it is used during winter.
Do-it-yourself8-35

GT and Sport models:
Item Offset in (mm) Size
Road wheel 1.50 (38) 6.5J x 17
1.81 (46) 7.0J x 18
1.71 (43.5) 8.0J x 19
Tire size 215/60 R17 96V
235/50 R18 97V*
235/50 R18 97H* **
235/45 R19 95V*
* : Use of snow chains NOT permitted.
**: US only.
All Road models:
Item Offset in (mm) Size
Road wheel 1.61 (41) 6.5J x 17
(steel)
1.61 (41) 7.0J x 18
(alloy)
Tire size 215/60 R17 96V
235/50 R18 97V*
235/50 R18 97H* **
* : Use of snow chains NOT permitted.
**: US only.
Dimension Model in (mm)
Overall length 174.2 (4425)
Overall width (incl. mirrors) 82.0 (2083)
Overall height GT without roof rails 58.9 (1495)
GT with roof rails 59.5 (1510)
Sport without roof rails 58.1 (1475)
Sport with roof rails 58.7 (1490)
Allroad without roof rails 58.7 (1515)
Allroad with roof rails 61.2 (1530)
Front track GT 17” wheels 61.9 (1572)
GT 18” wheels 61.3 (1556)
GT 19” wheels 61.5 (1561)
Sport 17” wheels 62 (1574)
Sport 19” wheels 61.5 (1563)
Allroad 17” wheels 61.7 (1566)
Allroad 18” wheels 61.5 (1561)
Rear track GT 17” wheels 61.9 (1573)
GT 18” wheels 61.2 (1555)
GT 19” wheels 61.7 (1566)
Sport 17” wheels 62.2 (1580)
Sport 19” wheels 61.7 (1567)
Allroad 17” wheels 62.0 (1574)
Allroad 18” wheels 61.7 (1566)
Wheelbase 106.3 (2700)
WHEELS AND TIRES DIMENSIONS
10-8Technical information

Sizes.....................10-8
tire chains..................8-33
Wear and damage.............8-33
Wheel balance...............8-36
Wheels and tires..........8-27, 10-8
Towing.....................6-14
Recommendations.............6-14
Your vehicle.................6-14
Trailer.....................10-15
Towing...................10-15
Transferring registration to another
country.....................10-9
Transmission..................5-18
Automatic Transmission (AT)
operation..................5-18
Automatic transmission fluid (ATF). . . .8-7
Traveling....................10-9
Turn signal...................8-23
Bulb information..............8-23
Operation..................8-23
V
Vanity mirror..................3-18
Lights....................2-89
Vehicle Dynamic Control (VDC).......5-92
Vehicle identification.............10-9
Air conditioner label...........10-11
Engine serial number...........10-10
Number (VIN) (chassis number). . . .10-10Number (VIN) plate............10-9
Tire and loading information label . . .10-11
Vehicle Immobilizer system..........5-13
Vehicle information display..........2-15
Warnings and indicators.........2-29
Vehicle loading information........10-13
Ventilators...................4-28
W
Warning lights..............0-10, 2-8
Airbag....................1-53
Warnings....................2-29
Vehicle information display........2-29
Warranty...................10-17
Emission control system.........10-17
Washing.....................7-2
Waxing......................7-2
Wheel lock bolts.................6-9
Wheels.....................8-36
Balancing..................8-36
Blocking....................6-5
Care ......................7-3
Changing tires and wheels........8-34
Installation..................6-8
Removal....................6-6
Sizes.....................10-8
Wheel lock bolts...............6-9
Wheels and tires..........8-27, 10-8
Windows....................2-74Window washer.................8-8
Fluid......................8-8
Windshield...................2-64
Defroster..................2-64
De-icer switch...............2-64
Wiper and washer switch.........2-62
Winter......................5-96
Battery....................5-96
Driving on snow or ice...........5-97
Engine coolant...............5-96
Precautions.................5-96
Special equipment.............5-97
Tire equipment...............5-96
Wipers......................8-13
Blade replacement
.............8-13
Rear - Operation..............2-63
Washer nozzle...............8-14
Wiper and washer switch.....2-61, 2-62
Index11-7