tire size INFINITI FX 2012 Owner's Manual

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”(P.9-8) 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, 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.
. 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” (P.9-
9) 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.
All-Wheel Drive (AWD) 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
AWD 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.
Maintenance and do-it-yourself8-41

8-42Maintenance and do-it-yourself
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” (P.7-2) for details
about care of the wheels.
Spare tire (TEMPORARY USE ONLY
(T-type) spare tire)
When a spare tire is mounted (TEMPORARY
USE ONLY or conventional), the TPMS will
not function.
Observe the following precautions if the T-
type spare tire must be used, otherwise
your vehicle could be damaged or involved
in an accident.
WARNING
. The T-type 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 TEMPORARY
USE ONLY spare tire is installed. Avoid
sharp turns and abrupt braking while
driving.
. Periodically check spare tire inflation
pressure. Always keep the pressure of
the TEMPORARY USE ONLY spare tire at
60 psi (420 kPa, 4.2 bar). Always keep
the pressure of the full size spare tire (if
so equipped) at the recommended pres-
sure for standard tires, as indicated on
the Tire and Loading Information label.
For Tire and Loading Information label
location, see “Tire and Loading Informa-
tion label” in the index of this manual.
. With the TEMPORARY USE ONLY spare
tire installed do not drive your vehicle at
speeds faster than 50 MPH (80 km/h).
. When driving on roads covered with
snow or ice, the TEMPORARY USE ONLY
spare tire should be used on the front
wheels and original tire used on the rear
wheels (drive wheels). Use tire chains
only on the two rear original tires.
. Tire tread of the TEMPORARY USE ONLY
spare tire will wear at a faster rate than the standard tire. Replace the spare tire
as soon as the tread wear indicators
appear.
. Do not use the spare tire on other
vehicles.
. Do not use more than one spare tire at
the same time.
. Do not tow a trailer when the TEMPOR-
ARY USE ONLY spare tire is installed.
CAUTION
.Do not use tire chains on a TEMPORARY
USE ONLY spare tire. Tire chains will not
fit properly and may cause damage to
the vehicle.
. Because the TEMPORARY USE ONLY
spare tire is smaller than the original
tire, ground clearance is reduced. To
avoid damage to the vehicle, do not
drive over obstacles. Also do not drive
the vehicle through an automatic car
wash since it may get caught.

STI0397B
VK50VE engine
STI0425
VQ35HR engine
WHEELS AND TIRES
Road wheel
TypeSizeOffset in (mm)
Conventional 18
68J
1.97 (50)
20
68J
21 69-1/2J
Spare 18
64-1/2T 1.18 (30)/0.98 (25)*
*: Aluminum
Technical and consumer information9-9

9-10Technical and consumer information
Tire
TypeSizePressure PSI (kPa) [Cold]
Conventional P265/60R18
33 (230)
P265/50R20
P265/45R21
Spare (T-type) T175/90D18
60 (420)
DIMENSIONS
Overall length (With front license plate) in (mm) 191.3 (4,860)
Overall width in (mm)75.9 (1,925)
Overall height in (mm)
65.0 (1,650)*1
66.1 (1,680)*2
Front tread in (mm)64.4 (1,635)
Rear tread in (mm)
64.6 (1,640)
Wheelbase in (mm)113.6 (2,885)
*1: Model without roof rack
*2: Model with roof rack

9-24Technical and consumer information
of the ball.
. Choose the proper class hitch ball
based on the trailer weight.
. The diameter of the threaded shank of
the hitch ball must be matched to the
ball mount hole diameter. The hitch ball
shank should be no more than 1/16
smaller than the hole in the ball mount.
. The threaded shank of the hitch ball
must be long enough to be properly
secured to the ball mount. There should
be at least 2 threads showing beyond
the lock washer and nut.
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 supplier 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
lb (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
lb (1,588 kg).
CAUTION
. Special hitches which include frame
reinforcements are required for towing
above 2,000 lb (907 kg). Suitable
genuine INFINITI hitches for pickup
trucks and sport utility vehicles are
available at an INFINITI retailer.
. The hitch should not be attached to or
affect the operation of the impact-
absorbing bumper.
. Do not use axle-mounted hitches.
. Do not modify the vehicle exhaust
system, brake system, etc. to install a
trailer hitch. .
To reduce the possibility of additional
damage if your vehicle is struck from the
rear, where practical, remove the hitch
and/or receiver when not in use. After
the hitch is removed, seal the bolt holes
to prevent exhaust fumes, water or dust
from entering the passenger compart-
ment.
. Regularly check that all trailer hitch
mounting bolts are securely mounted.
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

Rear Active Steer system ............................. 5-85
Steering-wheel-mounted controls
for audio ...................................................... 4-91
Tilt/telescopic steering ................................. 3-27
Storage ............................................................. 2-50
Sun visors ........................................................ 3-28
Sunglasses holder ............................................ 2-51 Supplemental air bag warning labels ................ 1-50
Supplemental air bag warning light ......... 1-50, 2-17Supplemental restraint system .......................... 1-37
Precautions on supplemental
restraint system ........................................... 1-37
Switch
Autolight switch ........................................... 2-37
Continuous Damping Control mode
select switch ................................................ 2-47
Fog light switch ........................................... 2-42
Hazard warning flasher switch ..................... 2-42
Headlight switch .......................................... 2-37
Ignition switch ............................................. 5-15
Intelligent Brake Assist (IBA) OFF switch ...... 2-47
Power door lock switch .................................. 3-5
Rear window and outside mirror
defroster switch ........................................... 2-36
Snow mode switch ....................................... 2-46
Turn signal switch ........................................ 2-42 Vehicle dynamic control (VDC) off switch ...... 2-48
Warning systems switch ............................... 2-46T
Tachometer ......................................................... 2-7
Temperature gauge, Engine coolant
temperature gauge .............................................. 2-8Theft (INFINITI Vehicle Immobilizer System),
Engine start ...................................................... 2-32
Thigh extension .................................................. 1-5
Three-way catalyst .............................................. 5-3
Tilt/telescopic steering ...................................... 3-27
Tire Pressure, Low tire pressure warning light .... 2-15
Tire replacement indicator ............................ 2-26
Tires Flat tire .......................................................... 6-2Low tire pressure warning system .................. 5-4
Spare tire .................................................... 8-42
Tire and Loading information label ...... 8-34, 9-13
Tire chains ................................................... 8-39
Tire dressing .................................................. 7-4
Tire pressure................................................ 8-32
Tire pressure information (display) ............... 4-11
Tire pressure monitoring
system (TPMS) ....................................... 5-4, 6-2
Tire rotation ................................................. 8-39
Types of tires ............................................... 8-38
Uniform tire quality grading ......................... 9-28
Wheel/tire size .............................................. 9-9
Wheels and tires .......................................... 8-32
Tonneau cover (see cargo cover) ....................... 2-55
Touch screen system ........................................... 4-6 Towing
Flat towing ................................................... 9-27
Tow truck towing .......................................... 6-12
Towing a trailer ............................................ 9-19Towing safety ............................................... 9-23
TPMS, Tire pressure monitoring system .............. 5-4
TPMS, Tire pressure warning system ................... 6-2
Trailer towing .................................................... 9-19
Transceiver, HomeLink
®Universal Transceiver ... 2-65
Transmission
Automatic transmission fluid (ATF) ............... 8-15
Driving with automatic transmission ............ 5-15
Transmission selector lever lock release ...... 5-19
Transmitter (See remote keyless entry system) ... 3-14
Traveling or registering your vehicle in
another country ................................................ 9-11
Trip computer ................................................... 2-28 Trip odometer ................................................... 2-28
Turn signal switch ............................................. 2-42
U
Underbody cleaning ............................................ 7-3
Uniform tire quality grading .............................. 9-28
USB memory operation ..................................... 4-71
V
Vanity mirror ..................................................... 3-32
Vanity mirror lights ........................................... 2-64
Variable voltage control system ........................ 8-19
10-7

10-8
VehicleDimensions .................................................. 9-10Identification number (VIN) .......................... 9-11Loading information ..................................... 9-15
Recovery (freeing a stuck vehicle) ................ 6-15Security system ........................................... 2-30Vehicle dynamic control (VDC) off switch ...... 2-48
Vehicle dynamic control (VDC) system .......... 5-83Vehicle information and settings (display) ...... 4-9
Vehicle Dynamic Control (VDC) warning light ..... 2-18
Ventilators ........................................................ 4-42
Voice command (Bluetooth
®Hands-Free
Phone System) ................................................ 4-111
Voice command (INFINITI voice
recognition system) ............................. 4-126, 4-135
Voice recognition system ................................ 4-120
Voice recognition, Alternate command mode ... 4-132 Voice recognition, Standard mode ................... 4-120
W
Warning
Dot matrix display ....................................... 2-21
Hazard warning flasher switch ..................... 2-42
Lane departure warning (LDW) system ......... 5-22
Lights .......................................................... 2-13
Tire pressure monitoring
system (TPMS) ....................................... 5-4, 6-2
Warning/indicator lights and
audible reminders ........................................ 2-12
Warning labels, Air bag warning labels ............. 1-50 Warning light
Air bag warning light ......................... 1-50, 2-17
All-wheel drive (AWD) warning light ............. 2-13
Anti-lock braking system (ABS)
warning light ............................................... 2-13
Brake warning light ...................................... 2-13
Intelligent Key system warning light ............ 2-15
Lane departure warning light ....................... 2-15Low tire pressure warning light .................... 2-15Rear Active Steer warning light .................... 2-17
Seat belt warning light and chime ............... 2-17
Warranty, Emission control system warranty ..... 9-29
Washer switch, Windshield wiper and
washer switch ................................................... 2-33
Washing ............................................................. 7-2
Waxing ............................................................... 7-2
Welcome light ................................................... 2-62
Wheel/tire size ................................................... 9-9
Wheels and tires ............................................... 8-32 Care of wheels ............................................... 7-3
Cleaning aluminum alloy wheels .................... 7-3
Wheels, Rear Active Steer system ..................... 5-85
Window washer fluid ........................................ 8-16
Window(s) Cleaning ........................................................ 7-3
Power windows ............................................ 2-58
Windshield wiper and washer switch ................ 2-33
Wiper
Rain-sensing auto wiper system ................... 2-34
Windshield wiper and washer switch ........... 2-33
Wiper blades ............................................... 8-22
X
Xenon headlights .............................................. 2-36