2010 INFINITI QX wheel size

Replacing wheels and tires
When replacing a tire, use the same size, tread
design, speed rating and load carrying capacity
as originally equipped. Recommended types and
sizes are shown in “Wheels and tires” in the
“Technical and consumer information” section of
this manual.
WARNING
●The use of tires other than those recom-
mended or the mixed use of tires of
different brands, construction (bias,
bias-belted or radial) , or tread patterns
can adversely affect the ride, braking,
handling, ground clearance, body-to-
tire clearance, tire chain clearance,
speedometer calibration, headlight aim
and bumper height. Some of these ef-
fects may lead to accidents and could
result in serious personal injury.
● If your vehicle was originally equipped
with 4 tires that were the same size and
you are only replacing 2 of the 4 tires,
install the new tires on the rear axle.
Placing new tires on the front axle may
cause loss of vehicle control in some
driving conditions and cause an acci-
dent and personal injury. ●
If the wheels are changed for any rea-
son, always replace with wheels which
have the same off-set dimension.
Wheels of a different off-set could
cause premature tire wear, degrade ve-
hicle 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. Re-
fer to “Wheels and tires” in the “Techni-
cal and consumer information” section
of this manual for wheel off-set
dimensions.
● When a spare tire is mounted or a wheel
is replaced, tire pressure will not be
indicated, the TPMS will not function
and the low tire pressure warning light
will flash for approximately 1 minute.
The light will remain on after 1 minute.
Contact your INFINITI dealer as soon as
possible for tire replacement 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 re-
paired. Such wheels or tires could have
structural damage and could fail with-
out warning.
● The use of retread tires is not
recommended.
● 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.
Four-wheel drive models
CAUTION
Always use tires of the same type, size,
brand, construction (bias, bias-belted or
radial) , 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 dam-
age the transmission, transfer case and
differential gears.
Maintenance and do-it-yourself8-41
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If excessive tire wear is found, it is recommended
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 necessary.
Contact an INFINITI dealer.
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 bal-
anced as required.
Wheel balance service should be per-
formed 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 Infor-
mation” (Canada) in the Warranty In-
formation Booklet.
Care of 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. ●
Do not use abrasive cleaners when washing
the wheels.
● Inspect wheel rims regularly for dents or
corrosion. Such damage may cause loss of
pressure or poor seal at the tire bead.
● INFINITI recommends waxing the road
wheels to protect against road salt in areas
where it is used during winter.
8-42Maintenance and do-it-yourself
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WHEELS AND TIRES
Wheels20 x 8.0JJ
Tires P275/60R20
Spare tire Full size
DIMENSIONS AND WEIGHTS
Overall lengthin (mm) 206.9(5,254)
Overall width in (mm) 79.6(2,021)
Overall height 2wd with roof rack in (mm) 76.7(1,948)
4wd with roof rack in (mm) 77.5(1,968)
Front Track in (mm) 68.1(1,729)
Rear Track in (mm) 68.1(1,729)
Wheelbase in (mm) 123.2(3,130)
Gross vehicle weight
rating lb (kg)
See the “F.M.V.S.S./C.M.
V.S.S. certification label”
on the center pillar be-
tween the driver’s side
front and side doors.
Gross axle weight rating
Front lb (kg)
Rear lb (kg)
9-8Technical and consumer information
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TOWING SAFETY
Trailer hitch
Your vehicle may be equipped with an optional
trailer tow package. The trailer tow package in-
cludes a receiver-type frame mounted hitch. This
hitch is rated for the maximum towing capacity of
this vehicle when the proper towing equipment is
used. Choose a proper ball mount and hitch ball
that is rated for the trailer to be towed. Genuine
INFINITI ball mounts and hitch balls are available
from your INFINITI dealer.
If your vehicle is not equipped with the optional
trailer tow package, check the towing capacity of
your bumper hitch or receiver-type frame
mounted hitch. Choose a proper hitch for your
vehicle and trailer. A genuine INFINITI trailer hitch
is available from your INFINITI dealer. Make sure
the trailer hitch is securely attached to the vehicle
to help avoid personal injury or property damage
due to sway caused by crosswinds, rough road
surfaces or passing trucks.
WARNING
Trailer hitch components have specific
weight ratings. Your vehicle may be ca-
pable of towing a trailer heavier than the
weight rating of the hitch components.
Never exceed the weight rating of the
hitch components. Doing so can cause
serious personal injury or property
damage.
Hitch ball
Choose a hitch ball of the proper size and weight
rating for your trailer:● The required hitch ball size is stamped on
most trailer couplers. Most hitch balls also
have the size printed on the top of the ball.
● Choose the proper class hitch ball based on
the trailer weight.
● The diameter of the threaded shank of the
hitch ball must be matched to the ball mount
hole diameter. The hitch ball shank should
be no more than 1/16” smaller than the hole
in the ball mount.
● The threaded shank of the hitch ball must be
long enough to be properly secured to the
ball mount. There should be at least 2
threads showing beyond the lock washer
and nut.
Ball mount
The hitch ball is attached to the ball mount and
the ball mount is inserted into the hitch receiver.
Choose a proper class ball mount based on the
trailer weight. Additionally, the ball mount should
be chosen to keep the trailer tongue level with the
ground.
Weight carrying hitches
A weight carrying or “dead weight” ball mount is
one that is designed to carry the whole amount of
tongue weight and gross weight directly on the
ball mount and on the receiver.
Weight distribution hitch
This type of hitch is also called a “load-leveling” or
“equalizing” hitch. A set of bars attach to the ball
mount and to the trailer to distribute the tongue
weight (hitch weight) of your trailer. Many vehicles
can’t carry the full tongue weight of a given trailer,
and need some of the tongue weight transferred
through the frame and pushing down on the front
wheels. This gives stability to the tow vehicle.
A weight-distributing hitch system (Class IV) is
recommended if you plan to tow trailers with a
maximum weight over 5,000 lbs. Check with the
trailer and towing equipment manufacturers to
determine if they recommend the use of a weight-
distributing hitch system.
9-20Technical and consumer information
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Service manual order form...........9-32
Servicing air conditioner ............4-25
Setting button ..................4-11
Shift lock release ................5-16
Shifting Automatic transmission ...........5-14
Shoulder belt height adjustment ........1-28
Side air bag system (See supplemental side air
bag, curtain and rollover air bag systems). . .1-64
Sonar Front system .............2-33, 5-53
Rear system .................5-52
Spark plug replacement ............8-16
Speedometer ...................2-4
SRS warning label ...............1-66
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 .............5-12
Startup screen ..................4-5
Steering Heated steering wheel ...........2-31
Power steering fluid .............8-11
Power steering system ...........5-49
Tilting steering wheel ............3-24
Steering wheel audio control switch ......4-51
Stop light ....................8-28
Storage .....................2-36
Overhead storage compartment ......2-39
Storage bin ................2-39, 2-43
Sun visors ....................3-26
Sunglasses case ................2-37
Sunglasses holder ...............2-37
Sunroof (see Moonroof) ............2-50 Supplemental air bag warning labels
.....1-66
Supplemental air bag warning light . . .1-67, 2-13
Supplemental front impact air bag system . .1-59
Supplemental restraint system Information and warning labels .......1-66
Precautions on supplemental restraint
system ....................1-52
Supplemental restraint system
(Supplemental
air bag system) .........1-52
Switch Autolight switch ...............2-26
Automatic power window switch .....2-49
Fog light switch ...............2-29
Hazard warning flasher switch .......2-29
Headlight aiming control ..........2-27
Headlight and turn signal switch ......2-24
Headlight control switch ..........2-25
Ignition switch ................5-9
Power door lock switch ...........3-5
Rear sonar system off switch .......2-32
Rear window and outside mirror defroster
switch ....................2-24
Rear window wiper and washer switches .2-23
Turn signal switch ..............2-29
Vehicle dynamic control (VDC) off switch.2-32
Windshield wiper and washer switch . . .2-22
T
Tachometer ....................2-5
Temperature gauge Engine coolant temperature gauge .....2-5
Engine oil pressure low/engine coolant
temperature high warning light .......2-10Theft
(INFINITI vehicle immobilizer system) ,
engine start ...........2-21, 3-3, 5-11
Third row power folding seats .........1-18
Three-way catalyst ................5-2
Tilting steering wheel ..............3-24
Tire Flat tire ....................6-2
Spare tire ...................6-3
Tire and Loading Information label .....9-11
Tire chains ..................8-39
Tire placard .................9-11
Tire pressure ................8-32
Tire rotation .................8-39
Tires of 4-wheel drive ............8-41
Types of tires ................8-38
Uniform tire quality grading .........9-29
Wheels and tires ..............8-32
Wheel/tire size ................9-8
Tire

pressure
Low tire pressure warning light ......2-11
Tire pressure display ...............4-8
Tire Pressure Monitoring System (TPMS) . . .5-3
Tire rotation maintenance reminder .......4-8
Top tether strap child restraint .........1-36
Tow mode switch ................2-33
Towing 2-wheel drive models ............6-12
4-wheel drive models ............6-13
Flat towing ..................9-28
Tow truck towing ..............6-11
Towing load/specification .........9-19
Trailer towing ................9-16
Transceiver HomeLink Universal Transceiver .....2-54
10-6
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TransmissionDriving with automatic transmission . . . .5-13
Selector lever lock release .........5-16
Travel (See registering your vehicle in another
country) ......................9-9
Trip odometer ...................2-4
Turn signal switch ................2-29
U
Uniform tire quality grading ...........9-29
V
Vanity mirror ...................3-26
Variable voltage control system ........8-15
Vehicle dimensions and weights ........9-8
Vehicle dynamic control (VDC) off switch. . .2-32
Vehicle dynamic control (VDC) system . . . .5-51
Vehicle electronic system ...........4-14
Vehicle identification ...............9-9
Vehicle identification number (VIN)
(Chassis number) .................9-9
Vehicle identification number (VIN) plate . . . .9-9
Vehicle loading information ...........9-12
Vehicle recovery .................6-13
Vehicle security system .............2-20
(INFINITI vehicle immobilizer system) ,
engine start ...........2-21, 3-3, 5-11
Ventilators ....................4-21
Visors ......................3-26
Voice recognition system ............4-82
Voltmeter .....................2-7 W
Warning 4WD warning light .............2-11
Air bag warning light .........1-67, 2-13
Anti-lock brake warning light ......2-8, 2-9
Battery charge warning light ........2-10
Brake warning light ..............2-9
Engine oil pressure low/engine coolant
temperature high warning light .......2-10
Hazard warning flasher switch .......2-29
Low fuel warning light . . . .2-11, 2-12, 2-19
Low tire pressure warning light ......2-11
Low washer fluid warning light .......2-19
Passenger air bag and status light .....1-61
Seat belt warning light ...........2-13
V

ehicle security system ...........2-20
Warning labels (for SRS) ..........1-66
Warning/indicator lights and audible
reminders ...................2-8
Warning lights ..................2-8
Washer switch Rear window wiper and washer
switches ...................2-23
Windshield wiper and washer switch . . .2-22
Weights (See dimensions and weights) . . . .9-8
Wheels and tires ................8-32
Wheel/tire size ..................9-8
When traveling or registering your vehicle in
another country ..................9-9
Window washer fluid ..............8-12
Windows Locking passengers’ windows .......2-48
Power rear windows ............2-49
Power vent windows ............2-50 Power windows
...............2-47
Rear power windows ............2-49
Windshield wiper and washer switch .....2-22
Wiper Rear window wiper and washer
switches ...................2-23
Windshield wiper and washer switch . . .2-22
Wiper blades ................8-19
10-7
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—debbie