2021 INFINITI QX80 tire type

5. Four numbers represent the weekand year the tire was built. For
example, the numbers 3103
means the 31st week of 2003. If
these numbers are missing, then
look on the other sidewall of the
tire.
Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire.
Tire manufacturers also must in-
dicate the materials in the tire,
which include steel, nylon, polye-
ster, and others.
Maximum 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
inflation pressure.
Maximum load rating
This number indicates the max-
imum 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.
Term of “tubeless” or “tube type”
Indicates whether the tire re-
quires an inner tube (“tube type”)
or not (“tubeless”).
The word “radial”
The word “radial” is shown, if the
tire has radial structure.
Manufacturer 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, In-
tended 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 side-
wall 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
(Example: Summer, 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 may not match
the potential maximum vehicle speed.
Never exceed the maximum speed
rating of the tire.
. Replacing tires with those not origin-
ally specified by INFINITI could affect
the proper operation of the TPMS.
. For additional information regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety
Information” (Canada) in the War-
ranty Information Booklet.
All season tires
INFINITI specifies all season tires on some
models to provide good performance all
Do-it-yourself8-33

8-34Do-it-yourself
year, 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
INFINITI specifies summer tires on some
models to provide superior performance on
dry roads. Summer tire performance is
substantially reduced in snow and ice. Sum-
mer 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 tires 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 will 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 thesame 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 capabilities of studded snow tires,
on wet or dry surfaces, may be poorer than
that of non-studded snow tires.
TIRE CHAINS
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 re-
stricted tire to vehicle clearance. Vehicles
that can use Class “S” chains are designed to
meet the SAE standard minimum clearances
between the tire and the closest vehicle
suspension or body component 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 manufac-
turer 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 addition, 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
rear wheels and not on the front wheels.
Never install tire chains on the full-size
temporary use only spare tire (if so
equipped).
Do not use tire chains on dry roads. Driving
with tire chains in such conditions can cause
damage to the various mechanisms of the
vehicle due to some overstress.

8-36Do-it-yourself
tread wear indicators. When
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 perso-
nal injury. If it is necessary to
repair the spare tire, it is re-
commended you visit an
INFINITI retailer for this ser-
vice.
. For additional information re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (Canada) in the Warranty
Information Booklet.Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. (See “Speci-
fications” (P.10-8) for recommended types
and sizes of tires and wheels.)
WARNING
. The use of tires other than those
recommended or the mixed use of
tires of different brands, construc-
tion (bias, bias-belted or radial), or
tread patterns can adversely affect
the ride, braking, handling, ground
clearance, body-to-tire clearance,
tire chain clearance, speedometer
calibration, headlight aim and bum-
per height. Some of these effects may
lead to accidents and could result in
serious personal injury.
. For Two-Wheel Drive (2WD) models,
if your vehicle was originally
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 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 dimen-
sion. Wheels of a different off-set
could cause premature tire wear,
degrade vehicle handling character-
istics and/or interference with the
brake discs/drums. Such interference
can lead to decreased braking effi-
ciency and/or early brake pad/shoe
wear. See “Wheels and tires” (P.10-
9) for wheel off-set dimensions.
. Since the spare tire is not equipped
with the TPMS, when a spare tire is
mounted or a wheel is replaced, the
TPMS will not function and the low
tire pressure warning light will flash
for approximately 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 you visit an INFINITI
retailer for these services.
. Replacing tires with those not origin-
ally 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

recommended 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
correctly fitted. Otherwise the valve
may be clogged up with dirt and
cause a malfunction or loss of pres-
sure.
. Do not install a damaged or deformed
wheel or tire even if it has been
repaired. Such wheels or tires could
have structural damage and could fail
without warning.
. The use of retread tire is not recom-
mended.
. For additional information regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety
Information” (Canada) in the War-
ranty Information Booklet.Four-Wheel Drive (4WD) models
CAUTION
.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 differ-
ence between tires on the front and
rear axles which will cause excessive
tire wear and may damage the trans-
mission, transfer case and differential
gears.
. ONLY use spare tires specified for
the 4WD 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 necessary. It is recommended
you visit an INFINITI retailer for this service.
Wheel balance
Unbalanced wheels may affect vehicle hand-
ling and tire life. Even with regular use,
wheels can get out of balance. Therefore,
they should be balanced as required. Wheel balance service should be performed
with the wheels off the vehicle. Spin
balancing the wheels on the vehicle could
lead to mechanical damage.
For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the INFINITI Warranty Information Booklet.
Care of wheels
See “Cleaning exterior” (P.7-2) for details
about care of the wheels.
Spare tire
Since the spare tire is not equipped with the
TPMS, when a spare tire is mounted (TEM-
PORARY USE ONLY), the TPMS will not
function.
Spare tire (FULL-SIZE TEMPORARY USE
ONLY spare tire) (Applies ONLY to vehicles
equipped with P275/50R22 tires or
P275/60R20 tires):
Observe the following precautions if the full-
size temporary use only spare tire must be
used, otherwise your vehicle could be da-
maged or involved in an accident.
Do-it-yourself8-37

WHEELS AND TIRES
Road wheel
TypeSizeOffset in (mm)
Conventional 20 × 8J
1.18 (30)
22 × 8J
Spare 20 × 8J
18 × 8J
Tire
Type
SizePressure PSI (kPa) [Cold]
Conventional P275/60R20 114H
35 (240)
P275/50R22 111H
Spare 275/60R20 115M
265/70R18 116M
51 (350)
Technical and consumer information10-9

10-18Technical and consumer information
SIC4446
SECURING THE LOAD
There are tie down hooks located in the
cargo area as shown. The tie down hooks
can be used to secure cargo with ropes or
other types of straps.
Do not apply a total load of more than 22 lb
(10 kg) to a single hook
or 7 lb (3 kg) to a
single hookwhen securing cargo.
WARNING
. Properly secure all cargo with ropes
or straps to help prevent it from
sliding or shifting. Do not place cargo
higher than the seatbacks. In a sud- den stop or collision, unsecured cargo
could cause personal injury.
. The child restraint top tether strap
may be damaged by contact with
items in the cargo area. Secure any
items in the cargo area. Your child
could be seriously injured or killed in a
collision if the top tether strap is
damaged.
. Do not load your vehicle any heavier
than the GVWR or the maximum
front and rear GAWRs. If you do,
parts of your vehicle can break, tire
damage could occur, or it can change
the way your vehicle handles. This
could result in loss of control and
cause personal injury.
LOADING TIPS
.The GVW must not exceed GVWR
or GAWR as specified on the F.M.
V.S.S./C.M.V.S.S. certification la-
bel.
.Do not load the front and rear axleto the GAWR. Doing so will exceed
the GVWR.
WARNING
. Properly secure all cargo to help
prevent it from sliding or shift-
ing. Do not place cargo higher
than the seatbacks. In a sudden
stop or collision, unsecured car-
go could cause personal injury.
. Do not load your vehicle any
heavier than the GVWR or the
maximum front and rear
GAWRs. If you do, parts of
your vehicle can break, tire
damage could occur, or it can
change the way your vehicle
handles. This could result in loss
of control and cause personal
injury.
. Overloading not only can short-
en the life of your vehicle and
the tire, but can cause unsafe
vehicle handling and long brak-
ing distance. This may cause a
premature tire failure, which
could result in a serious acci-
dent and personal injury. Fail-

11-6
Rollover .................................................................... 5-8
RoofMoonroof ......................................................... 2-71
Roof rack ......................................................... 2-67
S
SafetyChild seat belts ............................................... 1-29
Towing safety .............................................. 10-23
Seat adjustment Front power seat adjustment ...................... 1-4
Front seats ............................................. 1-4, 1-10
Seat belt(s) Child safety ..................................................... 1-29
Infants ............................................................... 1-30
Injured persons ............................................... 1-21
Larger children ............................................... 1-30
Precautions on seat belt usage ................. 1-18
Pregnant women ........................................... 1-21
Seat belt cleaning ............................................. 7-7
Seat belt extenders ....................................... 1-28
Seat belt maintenance ................................. 1-28
Seat belt warning light and chime ............ 2-14
Seat belts ......................................................... 1-18
Seat belts with pretensioners .................... 1-67
Small children .................................................. 1-30
Three-point type ............................................ 1-21
Seat(s) Climate controlled seats ............................. 2-50
Driver-side memory ..................................... 3-40
Heated seats .................................................. 2-48 Seats .................................................................... 1-3
Security system (INFINITI Vehicle
Immobilizer System), Engine start .................. 2-35
Security system, Vehicle security system ..... 2-34
Servicing climate control ................................... 4-37
Setting memory function, Automatic
drive positioner .................................................... 3-41
Shift lever, Shift lock release ............................ 5-21
Shift lock release Transmission ................................................... 5-21
Shifting, Automatic transmission .................... 5-18
Side ventilators .................................................... 4-27
Smart Rearview Mirror ...................................... 3-31
SNOW mode ....................................................... 5-122
Snow mode switch .............................................. 2-52
Spare tire ................................................... 8-37, 10-9
Spark plugs ............................................................ 8-14
Speedometer ............................................................ 2-7
Standard maintenance .......................................... 9-7
Starting Before starting the engine .......................... 5-15
Jump starting .................................................. 6-11
Precautions when starting and driving ..... 5-4
Push starting ................................................... 6-13
Starting the engine ....................................... 5-15
Status light, Front passenger air bag ............ 1-60
Steering Heated steering wheel ................................. 2-47
Power steering fluid ....................................... 8-8
Power steering system .............................. 5-123
Tilt/telescopic steering ................................ 3-29 Storage ................................................................... 2-60
Sun visors ............................................................... 3-30
Sunglasses holder ................................................ 2-62
Supplemental air bag warning labels ............. 1-68
Supplemental air bag warning light ... 1-69, 2-14
Supplemental restraint system ........................ 1-52
Precautions on supplemental
restraint system ............................................. 1-52
Switch
Autolight switch ............................................ 2-40
Fog light switch ............................................. 2-47
Hazard warning flasher switch .................... 6-2
Headlight aiming control ............................ 2-44
Headlight switch ........................................... 2-40
Ignition switch ................................................ 5-18
Power door lock switch ................................. 3-5
Snow mode switch ........................................ 2-52
Turn signal switch ......................................... 2-46
Vehicle dynamic control (VDC)
off switch ......................................................... 2-53
T
Tachometer ............................................................. 2-8
Temperature gauge, Engine coolant
temperature gauge ............................................... 2-8
Theft (INFINITI Vehicle Immobilizer System),
Engine start ........................................................... 2-35
Three-way catalyst ............................................... 5-4
Tilt/telescopic steering ...................................... 3-29

TirePressure, Low tire pressure
warning light ................................................... 2-16
Tires
Flat tire ............................................................... 6-3
Low tire pressure warning system ............. 5-5
Tire and Loading
information label ............................. 8-28, 10-13
Tire chains ....................................................... 8-34
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-27
Tire pressure monitoring
system (TPMS) ........................................ 5-5, 6-3
Tire rotation .................................................... 8-35
Types of tires .................................................. 8-33
Uniform tire quality grading .................... 10-31
Wheel/tire size ............................................... 10-9
Wheels and tires ............................................ 8-27
Top
Tether strap child restraints ....................... 1-36
TOW mode .......................................................... 5-122
TOW mode switch .............................................. 2-53
Towing Flat towing ................................................... 10-31
Tow truck towing .......................................... 6-15
Towing a trailer ........................................... 10-19
Towing safety .............................................. 10-23
TPMS, Tire pressure monitoring system ......... 5-5
TPMS with Tire Inflation Indicator ............. 5-7
TPMS, Tire pressure warning system .............. 6-3
Trailer towing ..................................................... 10-19 Transceiver
HomeLink®
Universal Transceiver ....................... 2-75, 2-79
Transmission
Automatic Transmission Fluid (ATF) ......... 8-8
Driving with automatic transmission ....... 5-18
Transmission shift lever lock release ....... 5-21
Transmitter (See remote keyless
entry system) ........................................................ 3-15
Traveling or registering your vehicle in
another country ................................................. 10-11
Trip computer ....................................................... 2-31
Trip odometer ....................................................... 2-31
Turn signal switch ............................................... 2-46
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading ........................... 10-31
USB (Universal Serial Bus)
charging connector ............................................. 2-58
V
Vanity mirror ......................................................... 3-39
Vanity mirror lights ............................................. 2-74
Variable voltage control system ..................... 8-13
Vehicle Dimensions ................................................... 10-10
Identification number (VIN) ...................... 10-11
Loading information .................................. 10-15
Recovery (freeing a stuck vehicle) ............ 6-18 Security system .............................................. 2-34
Vehicle dynamic control (VDC)
off switch ......................................................... 2-53
Vehicle dynamic control
(VDC) system ................................................ 5-125
Vehicle dynamic control (VDC)
warning light ................................................... 2-18
Vehicle information display .............................. 2-20
Vehicle speed ........................................................ 2-31
Ventilators ............................................................. 4-27
Voltmeter ............................................................... 2-10
W
Warning Hazard warning flasher switch .................... 6-2
Loose Fuel Cap warning ............................. 2-25
Predictive Forward Collision
Warning (PFCW) ........................................ 5-103
Tire Pressure Low Add Air warning ........ 2-25
Tire pressure monitoring
system (TPMS) ........................................ 5-5, 6-3
Vehicle information display ........................ 2-20
Warning lights, indicator lights and
audible reminders .......................................... 2-11
Warning labels, Air bag warning labels ........ 1-68
Warning light 4WD warning light ..................................... 5-118
Air bag warning light ........................ 1-69, 2-14
Anti-lock braking system (ABS)
warning light ................................................... 2-15
Brake warning light ....................................... 2-12
11-7