tire type INFINITI G-CONVERTIBLE 2010 User Guide

2TIN (Tire Identification Number) for a
new tire (example: DOT XX XX XXX
XXXX)
1.DOT: Abbreviation for the “Depart-
ment of Transportation”. The symbol
can be placed above, below or to the
left or right of the Tire Identification
Number.
2.Two-digit code: Manufacturer’s iden-
tification mark
3.Two-digit code: Tire size
4.Three-digit code: Tire type code (Op-
tional)
5.Three-digit code: Date of Manufacture
6.Four numbers represent the week and
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 side-
wall of the tire.
3Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire.
Tire manufacturers also must indi-
cate the materials in the tire, which
include steel, nylon, polyester, and
others.
4Maximum permissible inflation pres-
sure
This number is the greatest amount
of air pressure that should be put in
the tire. Do not exceed the maximum
permissible inflation pressure.
5Maximum load rating
This number indicates the maximum
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.
6Term of “tubeless” or “tube type”
Indicates whether the tire requires an
inner tube (“tube type”) or not
(“tubeless”).
7The word “radial”
The word “radial” is shown, if the tire
has radial structure.
8Manufacturer 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 side-
wall that contains a whitewall, bears
Example
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white lettering or bears manufacturer,
brand and/or model name molding that
is higher or deeper than the same mold-
ing on the other sidewall 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 construc-
tion. 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 ve-
hicle speed. Never exceed the maximum
speed rating of the tire.
● Replacing tires with those not originally
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 Warranty Information Booklet.
All season tires
INFINITI specifies all season tires on some
models to provide good performance all year,
including snowy and icy road conditions. All
Season tires are identified by ALL SEASON
and/or M&S (Mud and Snow) on the tire side-
wall. 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 re-
duced in snow and ice. Summer 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 the same
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 capa-
bilities of studded snow tires, on wet or dry
surfaces, may be poorer than that of non-
studded snow tires.
Maintenance and do-it-yourself8-31
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TIRE CHAINS
Use of tire chains may be prohibited according
to location. Check the local laws before install-
ing 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 suggestions.Use only
SAE Class S chains. Class “S” chains are used
on vehicles with restricted tire to vehicle clear-
ance. 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 re-
quired to accommodate the use of a winter
traction device (tire chains or cables). The mini-
mum clearances are determined using the fac-
tory equipped tire size. Other types may dam-
age your vehicle. Use chain tensioners 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 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 a TEMPORARY USE
ONLY spare tire.
Do not use tire chains on dry roads. Driving with
tire chains in such conditions can cause dam-
age to the various mechanisms of the vehicle
due to some overstress.
CHANGING WHEELS AND TIRES
Tire rotation
Tires cannot be rotated on this vehicle
because the front tires are a different
size than the rear tires.
A pin is on the front brake rotor to
prevent the rear wheels from being in-
stalled in place of the front wheels. The
spare tire can be installed in place of the
front and rear wheels. When installing
the spare tire in the front wheel, the hole
in the spare tire wheel must be aligned
with the pin on the brake rotor.
WARNING
●Retighten the wheel nuts when the
vehicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
●For additional information regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety In-
formation” (Canada) in the Warranty
Information Booklet.
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1. Wear indicator
2. Wear indicator location mark
Tire wear and damage
WARNING
●Tires should be periodically in-
spected for wear, cracking, bulging or
objects caught in the tread. If exces-
sive wear, cracks, bulging or deep
cuts are found, the tire(s) should be
replaced.
●The original tires have built-in tread
wear indicators. When wear indica-
tors 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 tech-
nician, 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 regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety In-
formation” (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 “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.
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Spare tire (TEMPORARY USE ONLY
(T-type) spare tire) (if so equipped)
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.
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.
Maintenance and do-it-yourself8-35
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WHEELS AND TIRES
Road wheel
TypeSize Offset in (mm)
Aluminum Front: 18 × 8J 1.69 (43)
Rear: 18 × 8-1/2J 1.06 (27)
Front: 19 × 8-1/2J 1.69 (43)
Rear: 19 × 9J 1.18 (30)
Spare*1 18 × 4T 0 (0)
Tire
TypeSize Pressure PSI (kPa) [Cold]
Conventional Front: P225/50R18 38 (260)
Rear: P245/45R18
Front: 225/45R19 XL 39 (270)
Rear: 245/40R19 XL
Spare (T-type)*1 T145/70R18 60 (420)
*1: if so equipped.
9-8Technical and consumer information
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Roof, Retractable hard top..........3-18
Safety Child seat belts .............. .1-13
Reporting safety defects (US only) ....9-19
S
Satellite radio operation ............4-50
Seat adjustment Front power seat adjustment ........1-3
Front seats ..................1-3
Seat belt(s)
Child safety ................ .1-13
Infants .................... 1-13
Injured persons ............... 1-14
Larger children ............... 1-14
Pre-crash seat belts ............1-14
Precautions on seat belt usage ......1-11
Pregnant women .............. 1-14
Seat belt cleaning ..............7-5
Seat belt extenders ............1-17
Seat belt guide ............... 1-17
Seat belt maintenance ...........1-17
Seat belt warning light ..........2-12
Seat belts .................. 1-11
Seat belts with pretensioners ......1-45
Small children ............... 1-14
Three-point type .............. 1-15
Seat synchronization function ........3-39
Seat(s) Climate controlled seats ..........2-36
Driver-side memory ............3-39
Heated seats ................ 2-35
Seats .....................1-2 Security system (INFINITI Vehicle Immobilizer
System), Engine start
.............2-26
Security system, Vehicle security system . .2-25
Selector lever Shift lock release ............. .5-15
Separator, Retractable hard top .......3-20
Servicing air conditioner (See automatic
climate control) ............... .4-28
Servicing climate control ...........4-35
SETTING button ................ .4-12
Shift

lock release
Transmission ............... .5-15
Shifting
Automatic transmission ..........5-11
Manual transmission ...........5-15
Sliding front passenger’s seat .........1-5
Small light indicator light ...........2-14
Sonar system ................. .5-43
Sonar system off switch ............5-45
Spare tire .................... .9-8
Spark plugs .................. .8-16
Speedometer .................. .2-5
Starting Before starting the engine .........5-10
Precautions when starting and driving . . 5-2
Starting the engine ............5-10
STATUS button ................. .4-7
Status light, Front passenger air bag .....1-41
Steering Power steering fluid ............8-11
Power steering system ..........5-45
Steering lock release malfunction
indicator .................. 2-18
Steering-wheel-mounted controls for
audio .................... 4-75
Tilt/telescopic steering ..........3-34Storage
.................... .2-40
Storage box .................. .2-43
Sun visors ................... .3-35
Supplemental air bag warning labels . . . .1-46
Supplemental air bag warning light . .1-46 , 2-12
Supplemental restraint system ........1-34
Supplemental restraint system, Precautions on
supplemental restraint system ........1-34
Switch Autolight switch ............. .2-31
Fog light switch .............. 2-34
Hazard warning flasher switch ......2-34
Headlight switch .............. 2-30
Ignition switch automatic transmission
models ................... 5-11
Ignition switch manual transmission
models ................... 5-15
Power door lock switch ...........3-5
Rear window and outside mirror defroster
switch ................... 2-29
Retractable

hard top switch . . . ....3-22
Turn signal switch ............. 2-34
Vehicle dynamic control (VDC) off
switch .................... 2-37
T
Tachometer ................... .2-6
Temperature gauge, Engine coolant
temperature gauge .............. .2-6
Theft (INFINITI Vehicle Immobilizer System),
Engine start .................. .2-26
Thigh extension ................ .1-5
Three-way catalyst ............... .5-2
Tilt/telescopic steering ............3-34
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Tire pressure, Low tire pressure warning
light...................... .2-10
Tire sealant ................... .6-3
Tire, Tire replacement indicator ........2-21
Tires Emergency tire puncture repair kit . . . .6-3
Flat tire ...................6-2
Low tire pressure warning system ....5-3
Spare tire .................. 8-35
Tire and Loading information label . . . 8-27
Tire chains ................. 8-32
Tire dressing ................7-3
Tire pressure ................ 8-26
Tire pressure monitoring system
(TPMS) ....................5-3
Tire rotation ................ 8-32
Types of tires ................ 8-31
Uniform tire quality grading .......9-18
Wheel/tire size ...............9-8
Wheels and tires ............. 8-26
Top, Retractable hard top ...........3-18
Touch screen system ..............4-4
Towing Flat towing ................ .9-17
Tow truck towing ............. 6-20
Towing a trailer .............. 9-17
TPMS, Tire pressure monitoring system . . . .5-3
TPMS, Tire pressure warning system .....6-2
Trailer towing ................. .9-17
Transceiver, HomeLink Universal
Transceiver .................. .2-49
Transmission Automatic transmission fluid (ATF) . . . .8-11
Driving with automatic transmission . . . 5-11
Driving with manual transmission ....5-15 Transmission selector lever lock
release
................... 5-15
Transmitter (See remote keyless entry
system) .................... .3-14
Traveling or registering your vehicle in
another country ................ .9-9
Trip computer ................. .2-22
Trip odometer ................. .2-23
Trunk Interior trunk lid release .........3-30
Trunk lid .................. 3-28
Trunk

lid release switch .........3-28
Trunk open request switch ........3-28
Trunk release power cancel switch . . . 3-29
Trunk light .................. .2-48
Turn signal switch .............. .2-34
U
Underbody cleaning .............. .7-3
Uniform tire quality grading ..........9-18
V
Vanity mirror ................. .3-38
Vanity mirror lights ............. .2-48
Variable voltage control system ........8-15
Vehicle Dimensions ................. .9-9
Recovery (freeing a stuck vehicle) ....6-22
Vehicle dynamic control (VDC)
off switch .................. 2-37
Vehicle dynamic control
(VDC) system ................ 5-50Vehicle information and settings
(display)
...................4-7
Vehicle identification number (VIN) ......9-10
Vehicle loading information ..........9-14
Vehicle security system ............2-25
Ventilators .................. .4-27
Voice command (See Bluetooth Hands-Free
Phone System) .............4-80 , 4-94
Voice recognition system ..........4-102
Voice recognition, Alternate command
mode ..................... .4-114
W
Walk-in mechanism .............. .1-6
Warning Dot matrix display .............2-15
Hazard warning flasher switch ......2-34
Tire pressure monitoring system
(TPMS) ....................5-3
Warning/indicator lights and audible
reminders ..................2-8
Warning labels, Air bag warning labels . . .1-46
Warning light Air bag warning light ............1-46
Anti-lock braking system (ABS) warning
light .....................2-9
Brake warning light .............2-9
Intelligent Key warning light .......2-10
Low tire pressure warning light . . . . . 2-10
Seat belt warning light ..........2-12
Warning lights ................. .2-9
Warranty,
Emission control system
warranty .................... .9-19
10-7
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