2014 INFINITI Q70 tire pressure

Black plate (439,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8 Maintenance and do-it-yourself
Maintenance requirement...
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Scheduled maintenance ...
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General maintenance ...
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Where to go for service ...
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General maintenance ...
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Explanation of maintenance items ...
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Maintenance precautions ...
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Engine compartment check locations ...
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VK56VD engine ...
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VQ37VHR engine ...
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Engine cooling system ...
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Checking engine coolant level ...
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Changing engine coolant ...
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Engine oil ...
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Checking engine oil level ...
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Changing engine oil and filter ...
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Automatic transmission fluid ...
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Power steering fluid ...
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Brake fluid ...
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Brake fluid ...
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Window washer fluid ...
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Battery ...
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Jump starting ...
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Variable voltage control system ...
......................... 8-22 Drive belts
...
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Spark plugs ...
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Replacing spark plugs ...
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Air cleaner ...
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Windshield wiper blades ...
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Cleaning ...
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Replacing ...
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Brakes ...
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Self-adjusting brakes ...
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Brake pad wear warning ...
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Fuses ...
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Engine compartment ...
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Passenger compartment ...
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Intelligent Key battery replacement ...
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Lights ...
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Headlights ...
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Exterior and interior lights ...
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Wheels and tires ...
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Tire pressure ...
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Tire labeling ...
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Types of tires ...
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Tire chains ...
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Changing wheels and tires ...
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Condition:

Black plate (441,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
is released.
When driving in areas using road salt or
other corrosive materials, check lubrication
frequently.
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 check-
ing 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 5,000 miles (8,000 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 necessary, adjust the pressure in
all tires, including the spare, to the
pressure specified. Check carefully for
damage, cuts or excessive wear.
Tire Pressure Monitoring System (TPMS)
transmitter components: Replace the TPMS
transmitter 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 Book-
let.
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 vehicleY51D-V-E01-42334435-BDC5-4B4B-BA49-0B1C06D00D3DThe 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) mechan-
ism: On a fairly steep hill, check that your
vehicle is held securely with the shift lever
in the P (Park) position without applying
any brakes.
Brake pedal: Check the pedal for smooth
operation. 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
operation regularly. The vehicle should be
securely held on a fairly steep hill with only
the parking brake applied. If the parking
brake needs adjusted, see an INFINITI
retailer.
Seat belts: Check that all parts of the seat
belt system (for example, buckles, an-
chors, adjuster and retractors) operate
properly and smoothly, and are installed
Maintenance and do-it-yourself8-3
Condition:

Black plate (474,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-36Maintenance and do-it-yourself
SDI1839
Vanity mirror light
Y51D-V-E01-F1F64E13-82FC-492E-876E-5A66E0C4CA22If you have a flat tire, see“Flat tire”(P.6-
3).
TIRE PRESSUREY51D-V-E01-CEAD7263-218E-43AE-A248-D60E4433F882
Tire Pressure Monitoring System
(TPMS)
Y51D-V-E01-ED7310EE-80E6-4118-A2B1-FB086602C102This 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 and the CHECK TIRE
PRESSURE warning appears in the dot
matrix liquid crystal display, 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
warning light” (P.2-13),“Tire Pressure
Monitoring System (TPMS)” (P.5-4) and
“Tire Pressure Monitoring System (TPMS)”
(P.6-3).
Tire inflation pressureY51D-V-E01-691E0963-E07C-4BA2-A24F-33B6175CC64C
Check the pressure of the tires
(including the spare) often and al-
ways prior to long distance trips. The recommended tire pressure specifi-
cations are shown on the Tire and
Loading Information label under the
“Cold Tire Pressure”
heading. The
Tire and Loading Information 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 whendriven 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
moderate speeds.
Incorrect tire pressure, including
under inflation, may adversely affect
tire life and vehicle handling.
WHEELS AND TIRES
Condition:

Black plate (475,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
WARNING
.Improperly inflated tires can fail
suddenly 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 capacity. Overloading
your vehicle may result in reduced
tire life, unsafe operating condi-
tions due to premature tire failure,
or unfavorable handling character-
istics 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 regard-
ing tires, refer to “Important Tire
Safety Information ”(US) or “Tire
Safety Information ”(Canada) in
the Warranty Information Booklet.
Maintenance and do-it-yourself8-37
Condition:

Black plate (476,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-38Maintenance and do-it-yourself
SDI2567
Tire and Loading Information labelY51D-V-E01-C7BD36AF-9934-43A4-94F2-4EDCBACAF922*1Seating capacity: The maximum
number of occupants that can be
seated in the vehicle.
*2Vehicle load limit: See“Vehicle
loading information” (P.9-15).
*3Original size: The size of the tires
originally installed on the vehicle
at the factory.
*4Cold tire pressure: Inflate the
tires to this pressure when the
tires are cold. Tires are consid- ered 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 manufacturer to
provide the best balance of tire
wear, vehicle handling, driveabil-
ity, tire noise, etc., up to the
vehicle’s GVWR.
*5Tire size
—see “Tire labeling”
(P.8-40).
*6Spare tire size or compact spare
tire size (if so equipped)
Condition:

Black plate (477,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
SDI1949
Checking the tire pressureY51D-V-E01-66CC50EA-50AC-4F6C-9287-E5AD0EB79112
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 sideways, or air will
escape. If the hissing sound of air
escaping from the tire is heard
while checking the pressure, re-
position the gauge to eliminate
this leakage.
3.Remove the gauge.
4.Read the tire pressure on the
gauge stem and compare it to
the specification shown on the
Tire and Loading Information la-
bel.
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 release air
as needed.
6.Install the valve stem cap.
7.Check the pressure of all other
tires, including the spare.
SIZECOLD TIRE
INFLATION
PRESSURE
FRONT
ORIGINAL
TIRE P245/50R18 99V
230 kPa,
33 PSI
245/40R20 95W 230 kPa,
33 PSI
245/40R20 95V 230 kPa,
33 PSI
REAR ORI-
GINAL TIRE P245/50R18 99V
230 kPa,
33 PSI
245/40R20 95W 230 kPa,
33 PSI
245/40R20 95V 230 kPa,
33 PSI
SPARE TIRE T165/80R17
420 kPa,
60 PSI
T165/80D17 420 kPa,
60 PSI
T155/80R18 420 kPa,
60 PSI
Maintenance and do-it-yourself8-39
Condition:

Black plate (479,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
SDI1607
Example
*2TIN (Tire Identification Number)
for a new tire (example: DOT XX XX
XXX XXXX)
1.DOT: Abbreviation for the “Depart-
ment of Transportation”. The sym-
bol can be placed above, below or
to the left or right of the Tire
Identification Number.
2.Two-digit code: Manufacturer’s
identification mark
3.Two-digit code: Tire size
4.Three-digit code: Tire type code
(Optional)
5.Three-digit code: Date of Manu-
facture
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 sidewall 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
pressure
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,
Maintenance and do-it-yourself8-41
Condition:

Black plate (482,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-44Maintenance and do-it-yourself
The wheel nuts must be kept tigh-
tened to the specification at all
times. It is recommended that wheel
nuts be tightened to the specifica-
tion at each tire rotation interval.
WARNING
.After rotating the tires, check and
adjust 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 regard-
ing tires, refer to “Important Tire
Safety Information ”(US) or “Tire
Safety Information ”(Canada) in
the Warranty Information Booklet.
SDI1663
Tire wear and damageY51D-V-E01-58006A64-896F-4DFB-91F4-017EF718D94E1.Wear indicator
2.Wear indicator location mark
WARNING
. Tires should be periodically in-
spected for wear, cracking, bul-
ging 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 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 regard-
ing tires, refer to “Important Tire
Safety Information ”(US) or “Tire
Safety Information ”(Canada) in
the Warranty Information Booklet.
Condition: