tire size INFINITI QX50 2023 Owner's Manual

If the low tire pressure warning light illumi-
nates continuously and the “Flat Tire – Visit
dealer" warning appears in the vehicle infor-
mation display:
• Do not exceed 50 mph (80 km/h).
• Increase your following distance to allowfor increased stopping distances.
• Avoid sudden maneuvers, hard cornering and hard braking.
WARNING
• Although you can continue driving with a
punctured run-flat tire, remember that
vehicle handling stability is reduced,
which could lead to an accident and per-
sonal injury. Also, driving a long distance
at high speeds may damage the tire.
• Do not drive at speeds above 50 mph (80
km/h) and do not drive more than ap-
proximately 93 miles (150 km) with a
punctured run-flat tire. The actual dis-
tance the vehicle can be driven on a flat
tire depends on outside temperature, ve-
hicle load, road conditions and other
factors. •
Drive safely at reduced speeds. Avoid
hard cornering or braking, which may
cause you to lose control of the vehicle.
• If you detect any unusual sounds or vi-
brations while driving with a punctured
run-flat tire, pull off the road to a safe
location and stop the vehicle as soon as
possible. The tire may be seriously dam-
aged and need to be replaced.CAUTION
• Never install tire chains on a punctured
run-flat tire, as this could damage your
vehicle.
• Avoid driving over any projection or pot-
hole, as the clearance between the ve-
hicle and the ground is smaller than
normal.
• Do not enter an automated car wash
with a punctured run-flat tire.
• Have the punctured tire inspected by an
INFINITI retailer or other authorized re-
pair shop. Replace the tire as soon as
possible if the tire is seriously damaged. •
Always use tires of the same type, size,
brand, construction (bias, bias-belted or
radial), 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 will
cause excessive tire wear and may dam-
age the transmission, transfer case and
differential gears (AWD models).
• ONLY use spare tires specified for the
AWD model.
• If excessive tire wear is found, it is rec-
ommended that all four tires be replaced
with tires of the same size, brand, con-
struction and tread pattern. The tire
pressure and wheel alignment should
also be checked and corrected as neces-
sary. It is recommended that you visit an
INFINITI retailer for this service.
Do-it-yourself8-37

TIRE CHAINS
CAUTION
Tire chains/cables should not be installed
on P255/45RF20 size tires. Installation of
the tire chains/cables on P255/45RF20
size tires will cause damage to the vehicle.
If you plan to use tire chains/cables, you
should install P235/55RF19 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 they are the proper size for
the tires on your vehicle and are installed
according to the chain manufacturer's sug-
gestions. Use only SAE class “S” chains. Class
“S” chains are used on vehicles with restricted
tire to vehicle clearance. Vehicles that can use
Class “S” chains are designed to meet the
minimum clearances between the tire and the
closest vehicle suspension or body compo-
nent required to accommodate the use of a
winter traction device (tire chains or cables).
The minimum clearances are determined
using the factory equipped tire size. Other
types may damage your vehicle. Use chain
tensioners when recommended by the tire
chain manufacturer to ensure a tight fit. Loose end links of the tire chain 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.
Do not use tire chains on dry roads. Driving
with chains in such conditions can cause
damage to the various mechanisms of the
vehicle due to some overstress.
CHANGING WHEELS AND TIRES
Tire rotation
INFINITI recommends rotating the
tires every 7,500 miles (12,000 km).
For additional information on tire re-
placing procedures, see “Flat tire”
(P. 6-3).
As soon as possible, tighten the wheel
nuts to the specified torque with a
torque wrench.
WDI0258
8-38Do-it-yourself

Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. For addi-
tional information, see “Wheels and tires”
(P. 10-10).
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
adversely affect the ride, braking, han-
dling, VDC system, ground clearance,
body-to-tire clearance, tire chain clear-
ance, speedometer calibration, headlight
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 four tires that
were the same size and you are only re-
placing two of the four 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 condi-
tions and cause an accident and personal
injury. •
If the wheels are changed for any reason,
always replace with wheels which have
the same off-set dimension. Wheels of a
different off-set could cause premature
tire wear, degrade vehicle handling char-
acteristics, 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 off-set dimensions, see
“Wheels and tires” (P. 10-10).
• When using a wheel without the TPMS,
such as the spare tire, the TPMS will not
function and the low tire pressure
warning light will flash for approxi-
mately 1 minute. The light will remain on
after 1 minute. Have your tires replaced
and/or TPMS system reset as soon as
possible. It is recommended that you
visit an INFINITI retailer for this service.
• 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 recom-
mended 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 In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet.
8-40Do-it-yourself

WHEELS AND TIRES
Wheel typeOffset
Metric
MeasureOffset
US
Measure
Size
Aluminum 39 mm 1.54 in 19 x 7.5J
Aluminum 44 mm 1.73 in 20 x 8.5J
Tire size P235/55RF19
P255/45RF20
Spare tire Not equipped
DIMENSIONS AND WEIGHTS
Metric
MeasureUS
Measure
Overall length 4,693 mm 184.8 in
Overall width 1,903 mm 74.9 in
Overall height 1,679 mm 66.1 in
Front track 19 inch wheel 1,635 mm 64.4 in
20 inch wheel 1,625 mm 64.0 in
Rear track 19 inch wheel 1,630 mm 64.2 in
20 inch wheel 1,620 mm 63.8 in
Wheelbase 2,800 mm 110.2 in
Gross vehicle weight rating Refer to the “F.M.V.S.S./
C.M.V.S.S. certi-
fication label” on
the center pillar
between the driver's
side front and rear
doors.
Gross axle weight rating
Front
Rear
10-10Technical and consumer information

NOTE:
A weight-distributing hitch system may
affect the operation of trailer surge brakes.
If you are considering use of a weight-
distributing hitch system with a surge
brake-equipped trailer, check with the surge
brake, hitch or trailer manufacturer to de-
termine if and how this can be done.
Follow the instructions provided by the
manufacturer for installing and using the
weight-distributing hitch system.
General set-up instructions are as follows:
1. Park unloaded vehicle on a level surface.With the ignition switch in the ON position
and the doors closed, allow the vehicle to
stand for several minutes so that it can
level.
2. Measure the height of a reference point on the front and rear bumpers at the cen-
ter of the vehicle.
3. Attach the trailer to the vehicle and adjust the hitch equalizers so that the front
bumper height is within0-.5inches (0 –
13 mm) of the reference height measured
in step 2. The rear bumper should be no
higher than the reference height mea-
sured in step 2.
WARNING
Properly adjust the weight distributing
hitch so the rear of the bumper is no higher
than the measured reference height when
the trailer is attached. If the rear bumper is
higher than the measured reference height
when loaded, the vehicle may handle un-
predictably which could cause a loss of ve-
hicle control and cause serious personal in-
jury or property damage.
Sway control device
Sudden maneuvers, wind gusts, and buffet-
ing caused by other vehicles can affect trailer
handling. Sway control devices may be used
to help control these affects. If you choose to
use one, contact a reputable trailer hitch sup-
plier to make sure the sway control device will
work with the vehicle, hitch, trailer and the
trailer's brake system. Follow the instructions
provided by the manufacturer for installing
and using the sway control device.
Class I hitch
Class I trailer hitch equipment (receiver, ball
mount and hitch ball) can be used to tow
trailers of a maximum weight of 2,000 lbs.
(907 kg).
Class II hitch
Class II trailer hitch equipment (receiver, ball
mount and hitch ball) can be used to tow
trailers of a maximum weight of 3,500 lbs.
(1,587 kg).
Tire pressures
• When towing a trailer, inflate the vehicle tires to the recommended
cold tire pressure indicated on the
Tire and Loading Information label.
• Trailer tire condition, size, load rating and proper inflation pressure should
be in accordance with the trailer and
tire manufacturer's specifications.
Safety chains
Always use suitable safety chains between
your vehicle and the trailer. The safety chains
should be crossed and should be attached to
the hitch, not to the vehicle bumper or axle.
The safety chains can be attached to the
bumper if the hitch ball is mounted to the
bumper. Be sure to leave enough slack in the
chains to permit turning corners.
10-28Technical and consumer information

Types of tires...................8-35
Uniform tire quality grading ........10-32
Wheel/tire size .................10-10
Wheels and tires .................8-27
Top tether strap child restraint .........1-26
Towing a trailer ..................10-22
Towing .........................6-10
2-wheel drive models .............6-10
All-wheel drive models .............6-9
Flattowing..............10-31,10-32
Towtrucktowing.................6-8
Towing load/specification .........10-26
Trailertowing..................10-22
Traffic Sign Recognition (TSR) .........5-32
Transceiver ......................2-80 HomeLink® Universal
Transceiver ......2-80,2-82,2-83,2-84
Transmission .....................8-10
Continuously Variable Transmission (CVT)
fluid..........................8-10
Driving with Continuously Variable
Transmission (CVT) ...............5-18
Travel (See registering a vehicle in another
country) ........................10-11
Trip odometer ......................2-5
Turn signal switch ..................2-46
U
Uniform tire quality grading ..........10-32
USB/iPod® Charging Ports ...........2-55
V
Vanity mirror.....................3-33
Variablevoltagecontrolsystem........8-14
Vehicle dimensions and weights .......10-10
Vehicle Dynamic Control (VDC) system. .5-142
Vehicle identification number (VIN)
(Chassis number) ..................10-11
Vehicle identification number (VIN)
plate...........................10-11
Vehicle identification number (VIN) .....10-11
Vehicle identification ...............10-11
Vehicle immobilizer system ............5-16
Vehicle information display ...........2-19
Vehicle loading information ..........10-17
Vehicle recovery ...................6-11
Vehicle security system ..............2-33
(INFINITI vehicle immobilizer system),
engine start ............2-34,3-4,5-16
Vents ...........................4-34
Visors ..........................3-32
W
Warning lights, indicator lights and audible
reminders .........................2-9
Warninglights .....................2-9
Warning systems switch .............2-51
Warning/indicator lights and audible
reminders .........................2-9
Audible reminders ............2-9,2-10
Indicatorlights...............2-9,2-10
Warninglights...............2-9,2-10 Warning.........................1-62
Airbagwarninglight .........1-62,2-13
Anti-lock brake warning light . . .2-10, 2-13
Battery charge warning light ........2-11
Brakewarninglight...............2-10
Engine oil pressure warning light .....2-12
Hazard warning flasher switch ........6-2
Loose fuel cap warning ............2-26
Lowfuelwarninglight....2-12,2-16,2-26
Low tire pressure warning light ......2-14
Low windshield-washer fluid warning
light.......................... 2-26
Seat belt warning light ........1-15, 2-12
Supplemental air bag warning
light......................1-62, 2-13
Vehicle security system ............2-33
Warning labels (for SRS) ...........1-61
Warning/indicator lights and audible
reminders .................. 2-9, 2-10
Washer switch .................... 2-38
Rear window wiper and washer
switches.......................2-38
Weights (See dimensions and weights). .10-10
Wheel/tire size ...................10-10
Wheels and tires ...................8-27
When traveling or registering in another
country.........................10-11
Windows ........................ 2-72
Locking passengers' windows .......2-73
Power rear windows ..............2-74
Power windows .................2-72
Rear power windows .............2-74
Windshield wiper blades .............8-17
Windshield-washerfluid .............8-11
11-7