tire size INFINITI Q70 HYBRID 2018 User Guide

SDI1949
Checking the tire pressure
1. Remove the valve stem cap fromthe 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, 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
specification 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 release air as needed.
6. Install the valve stem cap.
7. Check the pressure of all other tires, including the spare.
SIZE COLD
TIRE IN- FLA-
TION
PRES- SURE
FRONT ORIGI- NAL
TIRE P245/50R18
99V
250 kPa,
36 PSI
REAR
ORIGI- NAL
TIRE P245/50R18
99V
250 kPa,
36 PSI
SPARE TIRE T165/80D17
104M 420 kPa,
60 PSI
Do-it-yourself8-29

8-30Do-it-yourself
SDI1575
Example
TIRE LABELING
Federal law requires tire manufac-
turers to place standardized informa-
tion on the sidewall of all tires. This
information identifies and describes
the fundamental 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.
SDI1606
Example
Tire size (example: P215/60R16
94H)
1. P: The “P” indicates the tire is designed for passenger vehicles.
(Not all tires have this informa-
tion.)
2. Three-digit number (215): This number gives the width in milli-
meters of the tire from sidewall
edge to sidewall edge.
3. Two-digit number (60): This num- ber, known as the aspect ratio,
gives the tire’s ratio of height to width.
4. R: The “R” stands for radial.
5. Two-digit number (16): This num- ber is the wheel or rim diameter in
inches.
6. Two- or three-digit number (94): This number is the tire’s load index.
It is a measurement of how much
weight each tire can support. You
may not find this information on all
tires because it is not required by
law.
7. H: Tire speed rating. You should not drive the vehicle faster than
the tire speed rating.

JVM0694X
Example
TIN (Tire Identification Number) for
a new tire (example: DOT XX XX XXX
XXXX)
1. DOT: Abbreviation for the “De- partment of Transportation”. The
symbol can be placed above, be-
low 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. 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.
Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire.
Tire manufacturers also must indicate
the materials in the tire, which include
steel, nylon, polyester, and others.
Maximum 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.
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.
Term of “tubeless” or “tube type”
Indicates whether the tire requires an
inner tube (“tube type”) or not (“tube-
less”).
The word “radial”
The word “radial” is shown, if the tire
has radial structure.
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
sidewall that contains a whitewall,
bears white lettering or bears manu-
facturer, brand and/or model name
molding that is higher or deeper than
the same molding on the other side-
wall 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.
Do-it-yourself8-31

8-32Do-it-yourself
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 construction. 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 vehicle speed.
Never exceed the maximum speed
rating of the tire.
. Replacing tires with those not origin-
ally 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 War-
ranty Information Booklet.
All season tires
INFINITI specifies all season tires on some
models to provide good performance all year, including snowy and icy road condi-
tions. All Season tires are identified by ALL
SEASON and/or M&S (Mud and Snow) on
the tire sidewall. 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 reduced in snow and ice. Sum-
mer 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 thesame 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 capabilities 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 accord-
ing to location. Check the local laws before
installing 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 sug-
gestions.
Use only SAE Class S chains. Class
“S” chains are used on vehicles with re-
stricted tire to vehicle clearance. 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 required to
accommodate the use of a winter traction
device (tire chains or cables). The minimum
clearances are determined using the factory
equipped tire size. Other types may damage
your vehicle. Use chain tensioners when
recommended by the tire chain manufac-
turer 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
damage to the various mechanisms of the
vehicle due to some overstress.
SDI1662
CHANGING WHEELS AND TIRES
Tire rotation
INFINITI recommends rotating the
tires every 5,000 miles (8,000 km).
(See “Flat tire” (P.6-3) for tire repla-
cing procedures.)
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 tigh- tened to the specification at all times.
It is recommended that wheel nuts be
tightened to the specification 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 re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (Canada) in the Warranty
Information Booklet.
Do-it-yourself8-33

8-34Do-it-yourself
SDI1663
Wear indicator
Wear indicator location marks.
The locations are shown by
“
”, “TWI”, etc. depending on
tire types.
Tire wear and damage
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 perso-
nal injury. If it is necessary to
repair the spare tire, it is re-
commended you visit an
INFINITI retailer for this ser-
vice.
. For additional information re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (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 “Speci-
fications” (P.10-7) for recommended types
and sizes of tires and wheels.)
WARNING
. The use of tires other than those
recommended or the mixed use of
tires of different brands, construc-
tion (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 bum-
per height. Some of these effects 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 condi-
tions and cause an accident and
personal injury.

8-36Do-it-yourself
ble tire or differential damage.
. Drive carefully while the TEMPOR-
ARY USE ONLY spare tire is installed.
Avoid sharp turns and abrupt braking
while driving.
. Periodically check spare tire inflation
pressure. Always keep the pressure
of the TEMPORARY 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 stan-
dard tires, as indicated on the Tire
and Loading Information label. For
Tire and Loading Information label
location, see “Tire and Loading In-
formation 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 original 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 TEM-
PORARY USE ONLY spare tire. Tire
chains will not fit properly and may
cause damage to the vehicle.
. Because the TEMPORARY USE
ONLY spare tire is smaller than the
original tire, ground clearance is re-
duced. 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.

ENGINE
ModelVQ35HR
Type Gasoline, 4-cycle
Cylinder arrangement 6-cylinder, V-slanted at 60°
Bore × Stroke in (mm) 3.760 × 3.205
(95.5 × 81.4)
Displacement cu in (cm
3)213.45 (3,498)
Firing order 1-2-3-4-5-6
Idle speed rpm
No adjustment is necessary.
Ignition timing
(B.T.D.C.) degree/rpm
Spark plug FXE22HR11
Spark plug gap (Normal) in (mm) 0.043 (1.1)
Camshaft operation Timing chain
This spark ignition system complies with the Canadian standard ICES-002.
STI0425
VQ35HR engine
WHEELS AND TIRES
Road wheel
TypeSizeOffset in (mm)
Conventional 18 × 8J 1.69 (43)
Spare 17 × 4T 1.18 (30)
Tire
TypeSize Pressure PSI
(kPa) [Cold]
Conventional P245/50R18
99V
36 (250)
Spare (T-type) T165/80D17
104M 60 (420)
Technical and consumer information10-7
SPECIFICATIONS

11-8
Rear window and outside mirror
defroster switch ............................................. 2-37
Turn signal switch ......................................... 2-42
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-47
Warning systems switch ............................. 2-46
T
Tachometer ............................................................. 2-8
Theft (INFINITI Vehicle Immobilizer System)Engine start ..................................................... 2-34
Three-way catalyst ................................................ 5-5
Tilt/telescopic steering ...................................... 3-24
“TIMER” indicator ............................................... 2-24
Tire pressure
Low tire pressure warning light ................ 2-15
Tires Flat tire ............................................................... 6-3
Low tire pressure
warning system ........................... 5-5, 6-3, 8-26
Spare tire ......................................................... 8-35
Tire and Loading
information label ............................. 8-28, 10-10
Tire chains ........................................................ 8-32
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-26
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-26
Tire replacement indicator .......................... 2-27
Tire rotation .................................................... 8-33
Types of tires .................................................. 8-32 Uniform tire quality grading .................... 10-16
Wheel/tire size ............................................... 10-7
Wheels and tires ............................................ 8-26
Towing
Flat towing ................................................... 10-16
Tow truck towing .......................................... 6-13
Towing a trailer ........................................... 10-16
TPMS Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-26
Trailer towing ..................................................... 10-16
Transceiver HomeLink
®Universal Transceiver ............ 2-62
Transmission Automatic Transmission Fluid (ATF) ....... 8-11
Driving with automatic transmission ....... 5-14
Transmission shift lever lock release ....... 5-17
Transmitter (See remote keyless
entry system) ........................................................ 3-14
Traveling or registering your vehicle in
another country ................................................... 10-8
Trip computer ....................................................... 2-28
Trip odometer ....................................................... 2-30
Trunk Interior trunk lid release .............................. 3-21
Light .................................................................. 2-62
Trunk hooks .................................................... 2-53
Trunk lid ........................................................... 3-18
Trunk lid release switch ............................... 3-18
Trunk open request switch ......................... 3-19
Trunk release power cancel switch ......... 3-20 Turn signal switch ............................................... 2-42
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading ........................... 10-16
V
Vanity mirror ......................................................... 3-27
Vanity mirror lights ............................................. 2-62
Vehicle
Dimensions ..................................................... 10-8
Identification number (VIN) ....................... 10-8
Loading information .................................. 10-12
Security system .............................................. 2-32
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-47
Vehicle Dynamic Control
(VDC) system ................................................ 5-122
Vehicle dynamic control (VDC)
warning light ................................................... 2-17
Vehicle information display .............................. 2-21
Vehicle recovery ................................................... 6-15
Ventilators ............................................................. 4-32
VQ35HR engine ..................................................... 8-3
W
Warning Hazard warning flasher switch .................... 6-2
Lights ................................................................ 2-11

Predictive Forward Collision Warning
(PFCW) system ........................................... 5-108
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-26
Vehicle information display ........................ 2-21
Warning/indicator lights and
audible reminders .......................................... 2-10
Warning labels Air bag warning labels ................................. 1-50
Warning light
Air bag warning light ......................... 1-51, 2-17
Anti-lock braking system (ABS)
warning light ................................................... 2-11
Brake system warning light (yellow) ........ 2-12
Brake warning light (red) ............................. 2-12
Forward Emergency Braking (FEB)
system warning light .................................... 2-14
Lane Departure Warning (LDW)
indicator light .................................................. 2-15
Low tire pressure warning light ................ 2-15
Seat belt warning light and chime ............ 2-17
Warning lights ....................................................... 2-11
Warranty
Emission control system warranty ......... 10-17
Washer switch
Wiper and washer switch ........................... 2-35
Washing .................................................................... 7-2
Waxing ....................................................................... 7-2
Welcome light ....................................................... 2-59
Welcome light and farewell light function .... 3-10
Wheel/tire size ..................................................... 10-7 Wheels and tires .................................................. 8-26
Care of wheels .................................................. 7-3
Cleaning aluminum alloy wheels .................. 7-3
Window washer fluid ......................................... 8-12
Window(s)
Cleaning ............................................................... 7-3
Power windows ............................................. 2-54
Wiper Rain-sensing auto wiper system ............... 2-36
Wiper and washer switch ........................... 2-35
Wiper blades ................................................... 8-17
Wiper and washer switch ................................. 2-35
11-9