2011 INFINITI G spare tire

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.
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.
8-38Maintenance and do-it-yourself

CHANGING WHEELS AND TIRES
Tire rotation (Models equipped with
same size tires on all wheels)
INFINITI recommends rotating the tires
every 7,500 miles (12,000 km). (See
“FLAT TIRE” in the “6. In case of emer-
gency” section for tire replacing proce-
dures.)
As soon as possible, tighten the wheel
nuts to the specified torque with a torque
wrench.Wheel nut tightening torque:
80 ft-lb (108 N·m)
The wheel nuts must be kept tightened to
the specification at all times. It is recom-
mended that wheel nuts be tightened to
the specification at each tire rotation in-
terval.
WARNING
●After rotating the tires, check and ad-
just the tire pressure.
●Retighten the wheel nuts when the ve-
hicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
●Do not include the T-type spare tire or
any other small size spare tire in the tire
rotation.
●For additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet.
Tire rotation (Models equipped with
different size tires on front and rear)
Tires cannot be rotated on this vehicle,
as front tires are a different size from
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 ve-
hicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
SDI1662
Maintenance and do-it-yourself8-39

●For additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet.
1. Wear indicator
2. Wear indicator location mark
Tire wear and damage
WARNING
●Tires should be periodically inspected
for wear, cracking, bulging or objects
caught in the tread. If excessive 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 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 per-
sonal injury.
●Improper service of the spare tire may
result in serious personal injury. If it is
necessary to repair the spare tire, con-
tact an INFINITI retailer.
●For additional information regarding
tires, refer to “Important Tire Safety In-
formation” (US) or “Tire Safety Informa-
tion” (Canada) in the Warranty Informa-
tion Booklet.
SDI1663
8-40Maintenance and do-it-yourself

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

10. Install the license plate bracket with thebolts.
11. Install the license plate with bolts that are not longer than 0.55 in (14 mm).WARNING
●It is extremely dangerous to ride in a
cargo area inside the vehicle. In a colli-
sion, people riding in these areas are
more likely to be seriously injured or
killed.
●Do not allow people to ride in any area
of vehicle that is not equipped with
seats and seat belts.
●Be sure everyone in your vehicle is in a
seat and using a seat belt properly.
TERMS
It is important to familiarize yourself
with the following terms before loading
your vehicle:
●Curb Weight (actual weight of your
vehicle) - vehicle weight including:
standard and optional equipment, flu-
ids, emergency tools, and spare tire
assembly. This weight does not
include
passengers and cargo. ●
GVW (Gross Vehicle Weight) - curb
weight plus the combined weight of
passengers and cargo.
●GVWR (Gross Vehicle Weight Rating) -
maximum total combined weight of
the unloaded vehicle, passengers,
luggage, hitch, trailer tongue load
and any other optional equipment.
This information is located on the
F.M.V.S.S./C.M.V.S.S. label.
●GAWR (Gross Axle Weight Rating) -
maximum weight (load) limit specified
for the front or rear axle. This infor-
mation is located on the
F.M.V.S.S./C.M.V.S.S. label.
●GCWR (Gross Combined Weight Rat-
ing) - The maximum total weight rat-
ing of the vehicle, passengers, cargo,
and trailer.
●Vehicle Capacity Weight, Load limit,
Total load capacity - maximum total
weight limit specified of the load
(passengers and cargo) for the ve-
hicle. This is the maximum combined
VEHICLE LOADING INFORMATION
Technical and consumer information9-19