tire size INFINITI G 2011 Owner's Manual

Replacing wheels and tires
When replacing a tire, use the same size, tread
design, speed rating and load carrying capacity
as originally equipped. (See “SPECIFICATIONS”
in the “9. Technical and consumer information”
section for recommended types and sizes of
tires and wheels.)
WARNING
●The use of tires other than those recom-
mended or the mixed use of tires of different
brands, construction (bias, bias-belted or ra-
dial), or tread patterns can adversely affect
the ride, braking, handling, ground clear-
ance, body-to-tire clearance, tire chain
clearance, speedometer calibration, head-
light aim and bumper height. Some of these
effects may lead to accidents and could re-
sult 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 differ-
ent off-set could cause premature tire wear,
degrade vehicle handling characteristics
and/or interference with the brake
discs/drums. Such interference can lead to
decreased braking 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 re-
main on after 1 minute. Contact your INFINITI
retailer as soon as possible for tire replace-
ment 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 structural damage
and could fail without warning.
● The use of retread tire is not recommended. ●
For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the Warranty Information Booklet.
All-Wheel Drive (AWD) models
CAUTION
●Always use tires of the same type, size,
brand, construction (bias, bias-belted or ra-
dial), 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 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 nec-
essary. Contact an INFINITI retailer.
Maintenance and do-it-yourself8-41

Wheel balance
Unbalanced wheels may affect vehicle handling
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” in the “7. Appear-
ance and care” section for details about care of
the wheels.
Spare tire (TEMPORARY USE ONLY
(T-type) spare tire)
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 pres-
sure. Always keep the pressure of the TEM-
PORARY 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 pressure for standard tires,
as indicated on the Tire and Loading Infor-
mation label. For Tire and Loading Informa-
tion label location, see “Tire and Loading
Information 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 origi-
nal 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 TEMPORARY
USE ONLY spare tire is installed.
CAUTION
●Do not use tire chains on a TEMPORARY USE
ONLY spare tire. Tire chains will not fit prop-
erly 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.
8-42Maintenance and do-it-yourself

WHEELS AND TIRES
Road wheel
Sedan:
TypeSize Offset in (mm)
Conventional 17 × 7-1/2J 1.77 (45)
18 × 7-1/2J 1.77 (45)
Front: 18 × 7-1/2J 1.77 (45)
Rear: 18 × 8-1/2J 1.97 (50)
Spare 17 × 4T 1.18 (30)
18 × 4T 0 (0)
Coupe:
Type Size Offset in (mm)
Conventional 18 × 8J 1.69 (43)
Front: 19 × 8-1/2J 1.69 (43)
Rear: 19 × 9J 1.77 (45)
Spare 17 × 4T 1.18 (30)
18 × 4T 0 (0)
VQ25HR/VQ37VHR engine
STI0425
Technical and consumer information9-9

Tire
Sedan:
TypeSize Pressure PSI (kPa) [Cold]
Conventional P225/55R17 33 (230)
P225/50R18
Front: 225/50R18
Rear: 245/45R18
Spare (T-type) T145/80D17
60 (420)
T145/70R18
Coupe:
Type Size Pressure PSI (kPa) [Cold]
Conventional P225/50R18 33 (230)
P225/45R19 35 (240)
Front: 225/45R19 35 (240)
Rear: 245/40R19
Spare (T-type) T145/80D17 60 (420)
T145/70R18
9-10Technical and consumer information

Servicing climate control............4-37
SETTING button ................. .4-12
Shift “P” warning (Automatic Transmission
models) ..................... .2-20
Shift lock release, Transmission ........5-16
Shifting Automatic transmission ...........5-12
Manual transmission .............5-16
Shoulder belt height adjustment ........1-19
Sliding front passenger’s seat ..........1-5
Snow mode switch ............... .2-39
Sonar system .................. .5-47
Sonar system off switch .............5-49
Spare tire .................... .9-9
Spark plugs ................... .8-18
Speedometer ................... .2-5
Starting Before starting the engine ..........5-11
Jump starting ................ .6-8
Precautions when starting and driving . . .5-2
Push starting ................ .6-10
Starting the engine ............. .5-11
STATUS button .................. .4-7
Status light, Front passenger air bag .....1-47
Steering Power steering fluid .............8-12
Power steering system ...........5-49
Steering lock ................. .5-9
Steering lock release malfunction
indicator .................. .2-20
Steering-wheel-mounted controls for
audio .................... .4-82
Tilt/telescopic steering ...........3-24
Storage ..................... .2-42
Storage box .................. .2-46
Stowing golf bags ............... .2-47Sun visors
................... .3-25
Sunglasses holder ............... .2-44
Supplemental air bag warning labels .....1-53
Supplemental air bag warning light . . .1-53, 2-15
Supplemental restraint system .........1-40
Precautions on

supplemental restraint
system .................... .1-40
Switch Autolight switch .............. .2-33
Fog light switch .............. .2-36
Hazard warning flasher switch .......2-36
Headlight switch .............. .2-32
Ignition switch ............... .5-12
Ignition switch manual transmission
models .................... .5-16
Power door lock switch ............3-5
Rear window and outside mirror defroster
switch .................... .2-31
Snow mode switch ............. .2-39
Turn signal switch ............. .2-36
Vehicle dynamic control (VDC) off switch .2-39
T
Tachometer ................... .2-6
Temperature gauge, Engine coolant
temperature gauge ............... .2-6
Theft (INFINITI Vehicle Immobilizer System),
Engine start ................... .2-28
Thigh extension ................. .1-5
Three-way catalyst ................ .5-2
Tilt/telescopic steering .............3-24
Tire Pressure, Low tire pressure warning
light ..................... .2-13Tire replacement indicator . .
.......2-22
Tire rotation ................ .8-39
Tires Flat tire .................... .6-2
Low tire pressure warning system ......5-3
Spare tire .................. .8-42
Tire and Loading information label .8-33, 9-14
Tire chains ................. .8-38
Tire dressing ................. .7-4
Tire pressure ................ .8-31
Tire pressure monitoring system
(TPMS) .................. .5-3, 6-2
Types of tires ................ .8-37
Uniform tire quality grading ........9-23
Wheel/tire size ............... .9-9
Wheels and tires .............. .8-31
Top Tether strap child restraints .........1-25
Touch screen

system .............. .4-4
Towing Flat towing ................. .9-22
Tow truck towing .............. .6-11
Towing a trailer .............. .9-22
TPMS, Tire pressure monitoring system .....5-3
TPMS, Tire pressure warning system ......6-2
Trailer towing .................. .9-22
Transceiver, HomeLink Universal
Transceiver ................... .2-55
Transmission Automatic transmission fluid (ATF) . . . . .8-12
Driving with automatic transmission . . . .5-12
Driving with manual transmission .....5-16
Transmission selector lever lock release. .5-16
Transmitter (See remote keyless entry
system) ..................... .3-14
10-6

Traveling or registering your vehicle in
another country................. .9-12
Trip computer ................. .2-24
Trip odometer ................. .2-24
Trunk Interior trunk lid release ..........3-20
Light ..................... .2-55
Pass-through ................ .1-12
Trunk lid ................... .3-18
Trunk lid release switch ...........3-18
Trunk net for extra window washer fluid .2-48
Trunk open request switch .........3-19
Trunk release power cancel switch .....3-19
Turn signal switch ............... .2-36
U
Underbody cleaning ............... .7-3
Uniform tire quality grading ..........9-23
USB memory operation .............4-62
V
Vanity mirror .................. .3-29
Vanity mirror lights .............. .2-54
Variable voltage control system ........8-16
Vehicle Dimensions ................. .9-11
Identification number (VIN) .........9-12
Loading information .............9-19
Recovery (freeing a stuck vehicle) .....6-14
Security system .............. .2-27
Vehicle dynamic control (VDC) off
switch .................... .2-39
Vehicle dynamic control (VDC) system . . .5-54 Vehicle information and settings
(display)
................... .4-7
Ventilators ................... .4-27
Voice command (Bluetooth Hands-Free
Phone System) ................ .4-100
Voice command (INFINITI voice recognition
system) ..................... .4-114
Voice recognition system ...........4-108
Voice recognition, Alternate command
mode ...................... .4-121
Voice recognition, Standard mode ......4-108
W
Walk-in mechanism ............... .1-6
Warning Dot matrix

display............. .2-18
Hazard warning flasher switch .......2-36
Lights .................... .2-11
Tire pressure monitoring system
(TPMS) .................. .5-3, 6-2
Warning/indicator lights and audible
reminders .................. .2-10
Warning labels, Air bag warning labels . . . .1-53
Warning light Air bag warning light .........1-53, 2-15
All-wheel drive (AWD) warning light . . . .2-11
Anti-lock braking system (ABS) warning
light ..................... .2-11
Brake warning light ............. .2-11
Intelligent Key warning light ........2-13
Low tire pressure warning light .......2-13
Seat belt warning light and chime .....2-14
Warranty, Emission control system
warranty .................... .9-24Washer switch, Windshield wiper and
washer switch
................. .2-29
Washing ..................... .7-2
Waxing ...................... .7-2
Wheel/tire size ................. .9-9
Wheels and tires ................ .8-31
Care of wheels ................ .7-3
Cleaning aluminum alloy wheels .......7-3
Window washer fluid ..............8-14
Window(s) Automatic adjusting function ........2-51
Cleaning ................... .7-3
Power windows .............. .2-48
Windshield wiper and washer switch . . . . .2-29
Wiper Rain-sensing auto wiper system ......2-30
Windshield wiper and washer switch . . .2-29
Wiper blades ................ .8-19
X
Xenon headlights ............... .2-32
10-7