tire size INFINITI QX80 2014 Owner's Guide

8-40Maintenance and do-it-yourself
.The original tires have built-in
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 personal
injury. If it is necessary to repair
the spare tire, contact an INFINITI
retailer.
. For additional information regard-
ing tires, refer to “Important Tire
Safety Information ”(US) or “Tire
Safety Information ”(Canada) in
the Warranty Information Booklet.Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carry-
ing capacity as originally equipped. (See
“Specifications” in the“9. Technical and
consumer information” section for recom-
mended 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, construction (bias,
bias-belted or radial), or tread patterns
can adversely affect the ride, braking,
handling, ground clearance, body-to-tire
clearance, tire chain clearance, speed-
ometer calibration, headlight aim and
bumper 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 conditions 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 characteristics and/or interfer-
ence with the brake discs/drums. Such
interference can lead to decreased brak-
ing efficiency and/or early brake pad/
shoe wear. See “Wheels and tires” in the
“9. Technical and consumer information”
section of this manual for wheel off-set
dimensions.
. 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.
Contact your 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.
. 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 tire 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 Infor-
mation 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 difference between tires
on the front and rear axles which will
cause excessive tire wear and may
damage the transmission, transfer case
and differential gears.
. ONLY use spare tires specified for the
4WD model.
If excessive tire wear is found, it is
recommended that all four tires be re-
placed 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.
Contact an INFINITI retailer.
Wheel balance
Unbalanced wheels may affect vehicle
handling and tire life. Even with regular
use, wheels can get out of balance. There-
fore, they should be balanced as required.
Wheel balance service should be per-
formed 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 Book-
let.
Care of wheels
See “Cleaning exterior” in the“7. Appear-
ance and care” section for details about
care of the wheels.
Spare tire
When a spare tire is mounted (TEMPORARY
USE ONLY or conventional), the TPMS will
not function.
Spare tire (FULL-SIZE TEMPORARY USE
ONLY spare tire) (Applies ONLY to vehicles
equipped with P275/50R22 tires):
Observe the following precautions if the
full-size temporary use only spare tire must
be used, otherwise your vehicle could be
damaged or involved in an accident.
WARNING
. The full-size temporary use only spare
tire should be used for emergency use. It
should be replaced with the standard
tire at the first opportunity to avoid
possible tire or differential damage
. Drive carefully while the spare tire is
installed. Avoid sharp turns and abrupt
braking while driving. The vehicle driv-
ing performance may be affected when
driving on wet or snow covered roads.
. When the spare tire is installed, the
following systems may not work cor-
rectly.
Maintenance and do-it-yourself8-41

STI0397B
WHEELS AND TIRES
Road wheel
TypeSizeOffset in (mm)
Conventional 20
68J
1.18 (30)
22
68J
Spare 2068J
Tire
Type SizePressure PSI (kPa) [Cold]
Conventional P275/60R20 114H
35 (240)
P275/50R22 111H
Spare 275/60R20 115M
P275/60R20 114H
Technical and consumer information9-9

10,000 lb (4,545 kg). A weight distributing
hitch should be used to tow trailers that
weigh over 5,000 lb (2,267 kg).
Your vehicle may be equipped with Class IV
trailer hitch equipment that has a 10,000
lb (4,545 kg) maximum weight rating, but
your vehicle is only capable of towing the
maximum trailer weights shown in the
“Towing Load/Specification”chart earlier
in this section.
CAUTION
. Do not use axle-mounted hitches.
. Do not modify the vehicle exhaust
system, brake system, etc.
. Do not attach any additional hitches to
your vehicle because a hitch is already
mounted to your vehicle frame.
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, loadrating and proper inflation pres-
sure should be in accordance with
the trailer and tire manufacturers’
specifications.
Safety chains
Always use a suitable chain 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. Be sure to leave enough slack in the
chains to permit turning corners.
STI0745
Trailer lights
Your vehicle is equipped with a towing
package, which also includes the 7-pin
trailer harness connector located under the
trailer hitch cover on the rear bumper.
CAUTION
. When splicing into the vehicle electrical
system, a commercially available power-
type module/converter must be used to
provide power for all trailer lighting. This
unit uses the vehicle battery as a direct
power source for all trailer lights while
Technical and consumer information9-25

SwitchAutolight switch ........................................... 2-39
Fog light switch ........................................... 2-44
Hazard warning flasher switch ....................... 6-2
Headlight aiming control .............................. 2-41
Headlight switch .......................................... 2-38
Ignition switch ............................................. 5-17
Intelligent Brake Assist (IBA) OFF switch ...... 2-50
Power door lock switch .................................. 3-5
Snow mode switch ....................................... 2-49
Turn signal switch ........................................ 2-43
Vehicle dynamic control (VDC) off switch ...... 2-50
T
Tachometer ......................................................... 2-8
Temperature gauge, Engine coolant
temperature gauge .............................................. 2-8
Theft (INFINITI Vehicle Immobilizer System),
Engine start ...................................................... 2-32
Three-way catalyst .............................................. 5-3
Tilt/telescopic steering ...................................... 3-28
Tire Pressure, Low tire pressure warning light .... 2-15
Tire replacement indicator ............................ 2-27
Tires Flat tire .......................................................... 6-3
Low tire pressure warning system .................. 5-4
Tire and Loading information label ...... 8-33, 9-13
Tire chains ................................................... 8-38
Tire dressing .................................................. 7-4
Tire pressure................................................ 8-31 Tire pressure information (display) ................. 4-9
Tire pressure monitoring
system (TPMS) ....................................... 5-4, 6-3
Tire rotation ................................................. 8-38
Types of tires ............................................... 8-37
Uniform tire quality grading ......................... 9-30
Wheel/tire size .............................................. 9-9
Wheels and tires .......................................... 8-31
Top Tether strap child restraints ......................... 1-39
Touch screen ...................................................... 4-4
Tow mode ....................................................... 5-109
Tow mode switch .............................................. 2-49
Towing Flat towing ................................................... 9-29
Tow truck towing .......................................... 6-15
Towing a trailer ............................................ 9-18
Towing safety ............................................... 9-22
TPMS, Tire pressure monitoring system .............. 5-4
TPMS with Tire Inflation Indicator................... 5-6
TPMS, Tire pressure warning system ................... 6-3
Trailer towing .................................................... 9-18
Transceiver HomeLink
®Universal Transceiver ................. 2-68
Transmission
Automatic transmission fluid (ATF) ............... 8-12
Driving with automatic transmission ............ 5-17
Transmission shift lever lock release ............ 5-20
Transmitter (See remote keyless entry system) ... 3-15
Traveling or registering your vehicle in
another country ................................................ 9-11 Trip computer ................................................... 2-28
Trip odometer ................................................... 2-29
Turn signal switch ............................................. 2-43
U
Underbody cleaning ............................................ 7-3
Uniform tire quality grading .............................. 9-30
USB memory operation ..................................... 4-67
V
Vanity mirror ..................................................... 3-32
Vanity mirror lights ........................................... 2-67
Variable voltage control system ........................ 8-17
Vehicle
Dimensions .................................................. 9-10
Identification number (VIN) .......................... 9-11
Loading information ..................................... 9-14
Recovery (freeing a stuck vehicle) ................ 6-18
Security system ........................................... 2-31
Vehicle dynamic control (VDC) off switch ...... 2-50
Vehicle dynamic control (VDC) system ........ 5-115
Vehicle dynamic control (VDC)
warning light ............................................... 2-18
Vehicle information and settings (display) ...... 4-7
Ventilators ........................................................ 4-38
Voice command (INFINITI voice
recognition system) ............................. 4-115, 4-128
Voice recognition system ................................ 4-109
Voice recognition, Alternate command mode ... 4-125
10-7

10-8
Voltmeter .......................................................... 2-10
W
WarningCheck tire pressure warning ......................... 2-25
Dot matrix display ....................................... 2-22
Hazard warning flasher switch ....................... 6-2
Lane departure warning (LDW) system ......... 5-22
Lights .......................................................... 2-12
Loose fuel cap warning ................................ 2-25
Tire pressure monitoring
system (TPMS) ....................................... 5-4, 6-3
Warning/indicator lights and
audible reminders ........................................ 2-11
Warning labels, Air bag warning labels ............. 1-69
Warning light 4WD warning light ..................................... 5-105
Air bag warning light ......................... 1-70, 2-17
Anti-lock braking system (ABS)
warning light ............................................... 2-12
Brake warning light ...................................... 2-13
Intelligent Key warning light ........................ 2-15
Lane departure warning light ....................... 2-15
Low tire pressure warning light .................... 2-15
Seat belt warning light and chime ............... 2-17
Warranty, Emission control system warranty ..... 9-31
Washer switch
Rear window wiper and washer switch ......... 2-36
Windshield wiper and washer switch ........... 2-34
Washing ............................................................. 7-2
Waxing ............................................................... 7-3 Welcome light ................................................... 2-65
Wheel/tire size ................................................... 9-9
Wheels and tires ............................................... 8-31 Care of wheels ............................................... 7-3
Cleaning aluminum alloy wheels .................... 7-3
Window washer fluid ........................................ 8-15
Window(s)
Cleaning ........................................................ 7-3
Power windows ............................................ 2-61
Windshield wiper and washer switch ................ 2-34
Wiper Rain-sensing auto wiper system ................... 2-35
Rear window wiper and washer switch ......... 2-36
Windshield wiper and washer switch ........... 2-34
Wiper blades ............................................... 8-20
X
Xenon headlights .............................................. 2-38