tire pressure INFINITI G37 2010 Owner's Manual

REMOVING SPOTS Remove tar and oil spots, industrial dust, in-
sects, and tree sap as quickly as possible from
the paint surface to avoid lasting damage or
staining. Special cleaning products are avail-
able at an INFINITI retailer or any automotive
accessory stores.
UNDERBODY In areas where road salt is used in winter, the
underbody must be cleaned regularly. This will
prevent dirt and salt from building up and
causing the acceleration of corrosion on the
underbody and suspension. Before the winter
period and again in the spring, the underseal
must be checked and, if necessary, re-treated.
GLASS Use glass cleaner to remove smoke and dust
film from the glass surfaces. It is normal for
glass to become coated with a film after the
vehicle is parked in the hot sun. Glass cleaner
and a soft cloth will easily remove this film. CAUTIONWhen cleaning the inside of the windows, do
not use sharp-edged tools, abrasive cleaners or
chlorine-based disinfectant cleaners. They
could damage the electrical conductors, radio
antenna elements or rear window defroster
elements.
WHEELS Wash the wheels when washing the vehicle to
maintain their appearance.
● Clean the inner side of the wheels when the
wheel is changed or the underside of the
vehicle is washed.
● Inspect wheel rims regularly for dents or
corrosion. Such damage may cause loss of
pressure or poor seal at the tire bead.
● INFINITI recommends that the road wheels
be waxed to protect against road salt in
areas where it is used during winter.
CAUTIONDo not use abrasive cleaners when washing the
wheels. Aluminum alloy wheels Wash regularly with a sponge dampened in a
mild soap solution, especially during winter
months in areas where road salt is used. Salt
could discolor the wheels if not removed.
CAUTIONFollow the directions below to avoid staining or
discoloring the wheels:
● Do not use a cleaner that uses strong acid or
alkali contents to clean the wheels.
● Do not apply wheel cleaners to the wheels
when they are hot. The wheel temperature
should be the same as ambient temperature.
● Rinse the wheel to completely remove the
cleaner within 15 minutes after the cleaner is
applied.
CHROME PARTS Clean chrome parts regularly with a non- abra-
sive chrome polish to maintain the finish.
Appearance and care
7-3
 —
—
04/21/10—debbie


Tire pressure .................................. 8-28
Tire labeling .................................. 8-32
Types of tires ................................. 8-34 Tire chains ................................... 8-35
Changing wheels and tire s..................... 8-36
 —
—
04/21/10—debbie


When driving in areas using road salt or other
corrosive materials, check lubrication fre-
quently.
Lights*: Clean the headlights on a regular
basis. Make sure that the headlights, stop
lights, tail lights, turn signal lights, and other
lights are all operating properly and installed
securely. Also check headlight aim.
Road wheel nuts (lug nuts)*: When checking the
tires, make sure no wheel nuts are missing, and
check for any loose wheel nuts. Tighten if
necessary.
Tire rotation*: Tires should be rotated every
7,500 miles (12,000 km). If your vehicle is
equipped with different sized tires in the front
and rear, tires cannot be rotated.
Tires*: Check the pressure with a gauge often
and always prior to long distance trips. If nec-
essary, adjust the pressure in all tires, includ-
ing the spare, to the pressure specified. Check
carefully for damage, cuts or excessive wear.
Tire Pressure Monitoring System (TPMS) trans-
mitter components: Replace the TPMS transmit-
ter grommet seal, valve core and cap when the
tires are replaced due to wear or age.
Tire, wheel alignment and balance: If the vehicle
should pull to either side while driving on a straight and level road, or if you detect uneven
or abnormal tire wear, there may be a need for
wheel alignment.
If the steering wheel or seat vibrates at normal
highway speeds, wheel balancing may be
needed.
For additional information regarding tires, refer
to “Important Tire Safety Information” (US) or
“Tire Safety Information” (Canada) in the
INFINITI Warranty Information Booklet.
Windshield: Clean the windshield on a regular
basis. Check the windshield at least every six
months for cracks or other damage. Have a
damaged windshield repaired by a qualified
repair facility.
Windshield wiper blades*: Check for cracks or
wear if they do not wipe properly.
Inside the vehicle The maintenance items listed here should be
checked on a regular basis, such as when
performing periodic maintenance, cleaning the
vehicle, etc.
Accelerator pedal: Check the pedal for smooth
operation and make sure the pedal does not
catch or require uneven effort. Keep the floor
mat away from the pedal. Automatic transmission P (Park) mechanism: On
a fairly steep hill, check that your vehicle is held
securely with the selector lever in the P (Park)
position without applying any brakes.
Brake pedal: Check the pedal for smooth opera-
tion. If the brake pedal suddenly goes down
further than normal, the pedal feels spongy or
the vehicle seems to take longer to stop, see an
INFINITI retailer immediately. Keep the floor mat
away from the pedal.
Brakes: Check that the brakes do not pull the
vehicle to one side when applied.
Parking brake: Check the parking brake opera-
tion regularly. The vehicle should be securely
held on a fairly steep hill with only the parking
brake applied. If the parking brake needs ad-
justed, see an INFINITI retailer.
Seat belts: Check that all parts of the seat belt
system (for example, buckles, anchors, adjuster
and retractors) operate properly and smoothly,
and are installed securely. Check the belt web-
bing for cuts, fraying, wear or damage.
Seats: Check seat position controls such as
seat adjusters, seatback recliner, etc. to ensure
they operate smoothly and that all latches lock
securely in every position. Check that the head
Maintenance and do-it-yourself
8-3
 —
—
04/21/10—debbie


If you have a flat tire, see “FLAT TIRE” in the “6. In
case of emergency” section.
TIRE PRESSURE
Tire Pressure Monitoring System
(TPMS) This vehicle is equipped with the Tire Pressure
Monitoring System (TPMS). It monitors tire
pressure of all tires except the spare. When the
low tire pressure warning light is lit, one or
more of your tires is significantly under-
inflated.
The TPMS will activate only when the vehicle is
driven at speeds above 16 MPH (25 km/h). Also,
this system may not detect a sudden drop in tire
pressure (for example a flat tire while driving).
For more details, see “Low tire pressure warn-
ing light” in the “2. Instruments and controls”
section, “TIRE PRESSURE MONITORING SYSTEM
(TPMS)” in the “5. Starting and driving” section
and “TIRE PRESSURE MONITORING SYSTEM
(TPMS)” in the “6. In case of emergency” sec-
tion.
Tire inflation pressure
Check the pressure of the tires (includ-
ing the spare) often and always prior to
long distance trips. The recommended tire pressure specifications are shown
on the Tire and Loading Information
label under the “Cold Tire Pressure”
heading. The Tire and Loading Informa-
tion label is affixed to the driver side
center pillar. Tire pressures should be
checked regularly because: ●
Most tires naturally lose air over time. ●
Tires can lose air suddenly when
driven over potholes or other objects
or if the vehicle strikes a curb while
parking.
The tire pressures should be checked
when the tires are cold. The tires are
considered COLD after the vehicle has
been parked for 3 or more hours, or
driven less than 1 mile (1.6 km) at mod-
erate speeds.
Incorrect tire pressure, including under
inflation, may adversely affect tire life
and vehicle handling.Vanity mirror light (Type A) SDI2032
Vanity mirror light (Type B) SDI1839WHEELS AND TIRES
8-28 Maintenance and do-it-yourself
 —
—
04/21/10—debbie


WARNING●
Improperly inflated tires can fail sud-
denly and cause an accident.●
The Gross Vehicle Weight rating
(GVWR) is located on the F.M.V.S.S./
C.M.V.S.S. label. The vehicle weight
capacity is indicated on the Tire and
Loading Information label. Do not
load your vehicle beyond this capac-
ity. Overloading your vehicle may re-
sult in reduced tire life, unsafe operat-
ing conditions due to premature tire
failure, or unfavorable handling char-
acteristics and could also lead to a
serious accident. Loading beyond the
specified capacity may also result in
failure of other vehicle components.●
Before taking a long trip, or whenever
you heavily load your vehicle, use a
tire pressure gauge to ensure that the
tire pressures are at the specified
level. ●
For additional information regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety In-
formation” (Canada) in the Warranty
Information Booklet.
Maintenance and do-it-yourself
8-29
 —
—
04/29/10—pattie


Tire and Loading Information label
 1
Seating capacity: The maximum
number of occupants that can be
seated in the vehicle.
 2
Vehicle load limit: See “VEHICLE
LOADING INFORMATION” in the “9.
Technical and consumer informa-
tion” section.  3
Original size: The size of the tires
originally installed on the vehicle
at the factory.
 4
Cold tire pressure: Inflate the tires
to this pressure when the tires are
cold. Tires are considered COLD
after the vehicle has been parked
for 3 or more hours, or driven less
than 1 mile (1.6 km) at moderate
speeds. The recommended cold
tire inflation is set by the manufac-
turer to provide the best balance of
tire wear, vehicle handling, drive-
ability, tire noise, etc., up to the
vehicle’s GVWR.
 5
Tire size — see “TIRE LABELING”
later in this section.
 6
Spare tire size or compact spare
tire size (if so equipped) SDI2153
8-30 Maintenance and do-it-yourself
 —
—
04/21/10—debbie


Checking the tire pressure 1.
Remove the valve stem cap from the
tire.2.
Press the pressure gauge squarely
onto the valve stem. Do not press too
hard or force the valve stem side-
ways, or air will escape. If the hissing
sound of air escaping from the tire is
heard while checking the pressure,
reposition the gauge to eliminate this
leakage.3.
Remove the gauge. 4.
Read the tire pressure on the gauge
stem and compare it to the specifica-
tion shown on the Tire and Loading
Information label. 5.
Add air to the tire as needed. If too
much air is added, press the core of
the valve stem briefly with the tip of
the gauge stem to release pressure.
Recheck the pressure and add or re-
lease air as needed. 6.
Install the valve stem cap. 7.
Check the pressure of all other tires,
including the spare. Sedan:
SIZE COLD TIRE
INFLATION
PRESSURE
FRONT
ORIGINAL
TIRE P225/55R17
95V 230 kPa,
33 PSI
P225/
50R18 94V 230 kPa,
33 PSI
225/50R18
95W 230 kPa,
33 PSI
REAR
ORIGINAL
TIRE P225/55R17
95V 230 kPa,
33 PSI
P225/
50R18 94V 230 kPa,
33 PSI
245/45R18
96W 230 kPa,
33 PSISDI1949
Maintenance and do-it-yourself
8-31
 —
—
04/21/10—debbie


SIZE COLD TIRE
INFLATION
PRESSURE
SPARE
TIRE T145/
80D17 420 kPa,
60 PSI
T145/70R18 420 kPa,
60 PSI
T145/
70D18 420 kPa,
60 PSICoupe:
SIZE COLD TIRE
INFLATION
PRESSURE
FRONT
ORIGINAL
TIRE P225/
50R18
94V 230 kPa,
33 PSI
225/45R19
92W 240 kPa,
35 PSI SIZE COLD TIRE
INFLATION
PRESSURE
REAR
ORIGINAL
TIRE P225/
50R18
94V 230 kPa,
33 PSI
245/
40R19
94W 240 kPa,
35 PSI
SPARE
TIRE T145/
80D17 420 kPa,
60 PSI
T145/
70R18 420 kPa,
60 PSI
T145/
70D18 420 kPa,
60 PSI TIRE LABELING Federal law requires tire manufacturers
to place standardized information on the
sidewall of all tires. This information
identifies and describes the fundamen-
tal characteristics of the tire and also
provides the tire identification number
(TIN) for safety standard certification.
The TIN can be used to identify the tire in
case of a recall. Example SDI1575
8-32 Maintenance and do-it-yourself
 —
—
04/21/10—debbie


4.
Three-digit code: Tire type code (Op-
tional)5.
Three-digit code: Date of Manufacture6.
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.
 3
Tire 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.
 4
Maximum 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.  5
Maximum 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.
 6
Term of “tubeless” or “tube type”
Indicates whether the tire requires an
inner tube (“tube type”) or not
(“tubeless”).
 7
The word “radial”
The word “radial” is shown, if the tire
has radial structure.
 8
Manufacturer 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 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.
8-34 Maintenance and do-it-yourself
 —
—
04/21/10—debbie


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 (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
vehicle 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
Information” (US) or “Tire Safety In-
formation” (Canada) in the Warranty
Information Booklet. SDI1662
8-36 Maintenance and do-it-yourself
 —
—
04/21/10—debbie