flat tire INFINITI QX50 2020 Owner's Guide

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 allow for increased stopping distances.
∙ Avoid sudden maneuvers, hard cornering and hard braking.
WARNING
∙ Although you can continue driving with apunctured 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
approximately 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, read 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 puncturedrun-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 pos-
sible 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 recom- mended 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 necessary. It
is recommended that you visit an
INFINITI retailer for this service.
Do-it-yourself8-33

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 us-
ing the factory equipped tire size. Other types
may damage your vehicle. Use chain tension-
ers 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 whip-
ping action damage to the fenders or under-
body. If possible, avoid fully loading your ve-
hicle when using tire chains. In addition, 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, refer to “Flat tire”
in the “In case of emergency” section
of this manual.
As soon as possible, tighten the wheel
nuts to the specified torque with a
torque wrench.
WDI0258
8-34Do-it-yourself

Wheel nut tightening torque:83 ft-lb (113 N·m)
The wheel nuts must be kept tight-
ened 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 adjust the tire pressure.
∙ Retighten the wheel nuts when the vehicle has been driven for
600 miles (1,000 km) (also in
cases of a flat tire, etc.).
∙ Do not include the spare tire in the tire rotation.
∙ For additional information re- garding tires, refer to “Important
Tire Safety Information” (US) or
“Tire Safety Information”
(Canada) in the Warranty Infor-
mation Booklet.
Tire wear and damage
1. Wear indicator
2. Location mark
WARNING
∙ Tires should be periodically in- spected for wear, cracking, bulg-
ing or objects caught in the tread.
If excessive wear, cracks, bulging
or deep cuts are found, the tire(s)
should be replaced. ∙ The original tires have built-in
tread wear indicators. When the
wear indicators are visible, the
tire(s) should be replaced.
∙ 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.
Replace the tires as necessary to
prevent tire failure and possible
personal injury.
∙ Improper service of the spare tire may result in serious personal in-
jury. If it is necessary to repair the
spare tire, it is recommended that
you visit an INFINITI retailer for
this service.
∙ For additional information re- garding tires, refer to “Important
Tire Safety Information” (US) or
“Tire Safety Information”
(Canada) in the Warranty Infor-
mation Booklet.
WDI0259
Do-it-yourself8-35

10 Technical and consumer information
Recommended fluids/lubricants and capacities . . 10-2Fuel recommendation ....................... 10-3
Engine oil and oil filter recommendations .....10-6
Air conditioner system refrigerant and oil
recommendations ........................... 10-7
Specifications .................................. 10-8
Engine ...................................... 10-8
Wheels and tires ............................ 10-9
Dimensions and weights .....................10-9
When traveling or registering in another
country ....................................... 10-10
Vehicle identification .......................... 10-10
Vehicle Identification Number (VIN) plate . . . 10-10
Vehicle identification number
(chassis number) ........................... 10-10
Engine serial number ....................... 10-11
F.M.V.S.S./C.M.V.S.S. certification label .....10-11
Emission control information label ..........10-11
Tire and Loading Information label ..........10-12
Air conditioner specification label ...........10-12
Installing front license plate ....................10-12Vehicle loading information
....................10-14
Terms ..................................... 10-14
Vehicle load capacity ....................... 10-15
Securing the load ........................... 10-16
Loading tips ............................... 10-17
Measurement of weights ...................10-17
Towing a trailer ............................... 10-18
Maximum load limits ....................... 10-19
Towing load/specification ..................10-22
Towing safety ............................. 10-23
Flat towing for all–wheel drive vehicle
(if so equipped) ............................. 10-28
Flat towing for front wheel drive vehicle
(if so equipped) ............................. 10-28
Uniform tire quality grading ....................10-29
Emission control system warranty .............10-30
Reporting safety defects ......................10-30
Readiness for Inspection/Maintenance (I/M)
test ........................................... 10-31
Event Data

Recorders (EDR) ................... 10-32
Owner’s Manual/Service Manual order
information ................................... 10-33

Steps for determining correct load
limit
1. Locate the statement “The com-bined weight of occupants and
cargo should never exceed XXX
lbs. or XXX kg” on your vehicle’s
Tire and Loading Information la-
bel.
2. Determine the combined weight of the driver and passengers that
will be riding in your vehicle.
3. Subtract the combined weight of the driver and passengers from
XXX lbs. or XXX kg.
4. The resulting figure equals the available amount of cargo and
luggage load capacity. For ex-
ample, if the XXX amount equals
1,400 lbs. and there will be five
150 lbs. passengers in your ve-
hicle, the amount of available
cargo and luggage load capacity
is 650 lbs. (1,400-750 (5 X 150)
= 650 lbs.) or (640-340 (5 X 70) =
300 kg.) 5. Determine the combined weight
of luggage and cargo being
loaded on the vehicle. That
weight may not safely exceed the
available cargo and luggage load
capacity calculated in step 4.
6. If your vehicle will be towing a trailer, load from your trailer will
be transferred to your vehicle.
Consult this manual to determine
how this reduces the available
cargo and luggage load capacity
of your vehicle.
Before driving a loaded vehicle, con-
firm that you do not exceed the GVWR
or the GAWR for your vehicle. For ad-
ditional information, refer to “Mea-
surement of weights” in this section.
Also check tires for proper inflation
pressures. For additional information,
refer to “Tire and Loading Information
label” in the “Do-it-yourself” section of
this manual.
SECURING THE LOAD
There are luggage hooks located in the cargo
area as shown. The hooks can be used to
secure cargo with ropes or other types of
straps.
When securing items using luggage hooks
located on the side finisher do not apply a
load over more than 6.5 lbs. (29 N) to a single
hook.
The luggage hooks that are located on the
floor should have loads less than 110 lbs.
(490 N) to a single hook.
Cargo area luggage hooks
LTI2331
10-16Technical and consumer information

they recommend the use of a weight-
distributing hitch system.
NOTE:
A weight-distributing hitch system may af-
fect 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 on 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
center of the vehicle.
3. Attach the trailer to the vehicle and ad- just the hitch equalizers so that the front
bumper height is within0-.5inches (0 –
13 mm) of the reference height mea- sured in step 2. The rear bumper should
be no higher than the reference height
measured 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 unpre-
dictably which could cause a loss of vehicle
control and cause serious personal injury 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 la-
bel.
∙ Trailer tire condition, size, load rat- ing and proper inflation pressure
should be in accordance with the
trailer and tire manufacturer’s
specifications.
10-24
Technical and consumer information

∙ Check your hitch, trailer wiring harnessconnections, and trailer wheel lug nuts
after 50 miles (80 km) of travel and at
every break.
∙ When launching a boat, don’t allow the water level to go over the exhaust tail
pipe or rear bumper.
∙ Make sure you disconnect the trailer lights before backing the trailer into the
water or the trailer lights may burn out.
When towing a trailer, final drive gear oil
should be replaced and transmission
oil/fluid should be changed more frequently.
For additional information, refer to the “Do-
it-yourself” section of this manual.
FLAT TOWING FOR ALL–WHEEL
DRIVE VEHICLE (if so equipped)
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when towing
a vehicle behind a recreational vehicle, such
as a motor home.
CAUTION
∙ Failure to follow these guidelines can re- sult in severe transmission damage.
∙ Never flat tow your All-wheel drive (AWD) vehicle.
∙ DO NOT tow your All-wheel drive (AWD) vehicle with any wheels on the ground.
Doing so may cause serious and expen-
sive damage to the powertrain.
∙ For emergency towing procedures refer to “Towing recommended by INFINITI” in
the “In case of emergency” section of this
manual.
FLAT TOWING FOR FRONT
WHEEL DRIVE VEHICLE (if so
equipped)
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when towing
a vehicle behind a recreational vehicle, such
as a motor home.
CAUTION
∙ Failure to follow these guidelines can re-sult in severe transmission damage.
∙ Whenever flat towing your vehicle, al- ways tow forward, never backward.
∙ Never tow your front wheel drive vehicle with the front tires on the ground. Doing
so may cause serious and expensive dam-
age to the powertrain.
∙ DO NOT tow your front wheel drive con- tinuously variable transmission vehicle
with all four wheels on the ground (flat
towing). Doing so WILL DAMAGE inter-
nal transmission parts due to lack of
transmission lubrication.
∙ For emergency towing procedures refer to “Towing recommended by INFINITI” in
the “In case of emergency” section of this
manual.
Continuously Variable Transmission
To tow a vehicle equipped with a continu-
ously variable transmission, an appropriate
vehicle dolly MUSTbe placed under the
towed vehicle’s drive wheels. Alwaysfollow
the dolly manufacturer’s recommendations
when using their product.
10-28Technical and consumer information

DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform
to federal safety requirements in addition to
these grades.
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one and
one-half (1 1/2) times as well on the govern-
ment course as a tire graded 100. The rela-
tive performance of tires depends upon the
actual conditions of their use, however, and
may depart significantly from the norm due
to variations in driving habits, service prac-
tices and differences in road characteristics
and climate.
Traction AA, A, B and C
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire’s ability to stop on wet pavement as
measured under controlled conditions onspecified government test surfaces of as-
phalt and concrete. A tire marked C may have
poor traction performance.
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
Temperature A, B and 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 dis-
sipate heat when tested under controlled
conditions 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 tempera-
ture can lead to sudden tire failure. The grade
C corresponds to a level of performance
which all passenger car tires must meet under
the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher
levels of performance on the laboratory test
wheel than the minimum required by law.
WARNING
The temperature grade for this tire is es-
tablished for a tire that is properly inflated
and not overloaded. Excessive speed,
under-inflation, or excessive loading, either
separately or in combination, can cause
heat build-up and possible tire failure.
UNIFORM TIRE QUALITY GRADING
Technical and consumer information10-29

Top tether strap anchor point
locations...................1-27
Child restraint with top tether strap ....1-27
Child safety rear door lock ...........3-6
Chimes, audible reminders ..........2-19
Cleaning exterior and interior ......7-2,7-4
Climate control seat switch .........2-47
C.M.V.S.S. certification label ........10-11
Cold weather driving .............5-191
Console box ..................2-58
Continuously Variable Transmission
(CVT) .......................5-19
Continuously Variable Transmission (CVT)
fluid.....................8-10
Driving with Continuously Variable
Transmission (CVT) ............5-19
Controls Heater and air conditioner controls . . .4-36
Coolant Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant ..........8-5
Checking engine coolant level .......8-5
Engine coolant temperature gauge ....2-6
Corrosion protection ..............7-7
Cruisecontrol..............5-75,5-76
Cupholders...................2-59
D
Diesel Particulate Filter (DPF) ........2-32
Dimensionsandweights...........10-9
Dimmer switch for instrument panel ....2-45
Distance Control Assist (DCA) system . .5-133
Door locks .................3-4,3-5 Drivebelt....................8-13
Drive positioner, Automatic
.....3-38,3-40
Driving Cold weather driving ...........5-191
Driving with Continuously Variable
Transmission (CVT) ............5-19
Precautions when starting and
driving .................5-4,5-11
Driving the vehicle ...............5-19
Dual panel moonroof .............2-71
Dual power moonroof .........2-71,2-71
Dynamic driver assistance switch
(for vehicles without ProPILOT Assist) . .2-49
E
E-call (SOS) Button ..............2-53
Economy - fuel ................5-173
Electronic parking brake ...........5-24
Emergency engine shutoff .......5-16,6-3
Emission control information label ....10-11
Emission control system warranty ....10-30
Engine Before starting the engine ........5-17
Block heater ................5-193
Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant ..........8-5
Changing engine oil .............8-6
Changing engine oil filter ..........8-6
Checking engine coolant level .......8-5
Checking engine oil level ..........8-6
Engine compartment check locations . .8-3
Engine coolant temperature gauge ....2-6
Engine cooling system ...........8-4 Engine oil
...................8-6
Engine oil and oil filter
recommendation ..............10-6
Engine oil pressure warning light ....2-11
Engine oil viscosity ............10-6
Engine serial number ..........10-11
Engine specifications ...........10-8
Starting the

engine ............5-17
Engine coolant temperature gauge ......2-6
Event Data recorders ............10-32
Exhaust gas (Carbon monoxide) .......5-4
Explanation of maintenance items ......9-2
Explanation of scheduled maintenance
items........................9-5
Extended storage switch ...........2-55
F
Flashers
(See hazard warning flasher switch) .....6-2
Flat tire ......................6-3
Floor mat positioning aid ............7-6
Fluid Brakefluid .................8-10
Capacities and recommended
fuel/lubricants............... 10-2
Continuously Variable Transmission (CVT)
fluid.....................8-10
Engine coolant ................8-4
Engine oil ...................8-6
Windshield-washerfluid.........8-11
F.M.V.S.S. certification label ........10-11
Fog light switch ................2-46
Forward Emergency Braking (FEB) with
Pedestrian Detection system ....2-12,5-150
11-2

Seats2nd row bench seat adjustment .....1-4
Adjustment ..................1-2
Armrests ...................1-5
Automatic drive positioner ....3-38,3-40
Frontseats..................1-2
Heated seats ................2-48
Seats/floor mats ................7-6
Security indicator light ............2-18
Security system (INFINITI vehicle immobilizer system),
engine start ..........2-34,3-4,5-17
Security systems Vehicle security system ..........2-33
Self-adjusting brakes .............8-18
Service manual order form .........10-33
Servicing air conditioner ...........4-43
Spark plug replacement ............8-14
Spark plugs ...................8-14
Specifications .................10-8
Speedometer ................2-4,2-5
Speedometer and odometer ..........2-4
SRS warning label ...............1-63
Stability control ................5-182
Standard maintenance .............9-9
Starting Before starting the engine ........5-17
Jump starting .............6-5,8-12
Precautions when starting and
driving .................5-4,5-11
Push starting .................6-7
Starting the engine ............5-17
Starting the engine ..............5-17
Steering Power steering system .....5-177, 5-178 Steering Assist switch
(for vehicles with ProPILOT Assist)
....2-50
Steering wheel .................3-33
Stoplight....................8-23
Storage.....................2-56
Storagebin...................2-61
Storagetray ..................2-57
Sunglasses case ................2-58
Sunglasses holder ...............2-58
Sunroof ..................2-71,7-5
Sunroof (see Moonroof) ...........2-71
Sun visors ....................3-34
Supplemental air bag warning labels ....1-63
Supplemental air bag warning
light....................1-63,2-15
Supplemental front impact air bag
system......................1-51
Supplemental restraint system Informationandwarninglabels.....1-63
Precautions on supplemental restraint
system ....................1-43
Supplemental restraint system
(Supplemental air bag system) ........1-43
Switch Autolight switch ..............2-40
Automatic power window switch ....2-70
Fog light switch ..............2-46
Hazard warning flasher switch ......6-2
Headlight aiming control .........2-44
Headlight and turn signal switch ....2-40
Instrument brightness control ......2-45
Power door lock switch .......3-5,3-6
Rear window wiper and washer
switches ...................2-38
Turn signal switch ............. 2
-45T
Tachometer ...................2-6
Temperature gauge Engine coolant temperature gauge ....2-6
Theft (INFINITI vehicle immobilizer system),
engine start ..........2-34, 3-4, 5-17
Three-way catalyst ...............5-4
Tire Flat tire ....................6-3
Tire and Loading Information label . .10-12
Tire chains ................. 8-34
Tirepressure................8-25
Tirerotation................ 8-34
Types of tires ................8-31
Uniform tire quality grading ......10-29
Wheels and tires ..............8-25
Wheel/tire size ...............10-9
Tire pressure Low tire pressure warning light .....2-12
Tire Pressure Monitoring System (TPMS) . .5-5
Top tether strap child restraint .......1-27
Towing 4-wheel drive models ...........6-10
Flattowing................10-28
Towing load/specification .......10-22
Towtrucktowing..............6-8
Trailertowing...............10-18
Towing a trailer ...............10-18
Traffic Sign Recognition (TSR) ........5-32
Transceiver HomeLink® Universal
Transceiver..........2-76,2-78,2-79
11-6