flat tire INFINITI Q50 2018 Owner's Guide

8-42Do-it-yourself
tire/wheel on the front of the
vehicle. Doing so can damage
the vehicle or tire. Damage to
the tire may result in a sudden
loss of air pressure which may
cause loss of vehicle control in
some driving conditions and
cause a collision and personal
injury.
. Retighten the wheel nuts when
the vehicle has been driven for
600 miles (1,000 km) (also in
cases of a flat tire, etc.).
. 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.
After the ignition switch is placed in
the ON position, it may take a period
of time for the tire pressure to be
displayed in the vehicle information
display while the vehicle is driven.
Depending on the radio wave circum-
stance, tire pressure may not cor- rectly be displayed.
SDI1663
: Wear indicator
: Wear indicator location mark. 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.10-11) for recommended types
and sizes of tires and wheels.)
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed in the vehicle
information display while the vehicle is
driven. Depending on the radio wave circum-
stance, tire pressure may not correctly be
displayed.
WARNING
. The use of tires other than those
recommended or the mixed use of
tires of different brands, construc-
tion (bias, bias-belted, radial or run-
flat), or tread patterns can adversely
affect the ride, braking, handling,
ground clearance, body-to-tire clear-
ance, tire chain clearance, speed-
ometer calibration, headlight aim
and bumper height. Some of these
effects may lead to accidents and
could result in serious personal injury.
. For Two-Wheel Drive (2WD) models,
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.
. If the wheels are changed for any
reason, always replace with wheels
which have the same off-set dimen-
sion. Wheels of a different off-set
could cause premature tire wear,
degrade vehicle handling character-
istics and/or interference with the
brake discs/drums. Such interference
can lead to decreased braking effi-
ciency and/or early brake pad/shoe
wear. See “Wheels and tires” (P.10-
12) of this manual for wheel off-set
dimensions.
. Since the spare tire is not equipped
with the TPMS, 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 remain on after 1 minute. Have
your tires replaced and/or TPMS
system reset as soon as possible. It
is recommended you visit an INFINITI
retailer for these services.
Do-it-yourself8-43

WARNING
.The TEMPORARY USE ONLY 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 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 infor-
mation label” (P.10-16).
. 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.
Do-it-yourself8-45

10 Technical and consumer information
Capacities and recommended fluids/lubricants...... 10-2Fuel information (for VR30DDTT
engine model).............................................................. 10-4
Fuel information (for 2.0L turbo gasoline
engine model)............................................................... 10-6
Engine oil and oil filter recommendation............ 10-8
Air conditioning system refrigerant and
lubricant recommendations .................................. 10-10
Specifications.................................................................. 10-11 Engine........................................................................\
.. 10-11
Wheels and tires ...................................................... 10-12
Dimensions ................................................................ 10-13
When traveling or registering in
another country............................................................. 10-14
Vehicle identification.................................................... 10-14 Vehicle Identification Number (VIN) plate ....... 10-14
Vehicle identification number
(chassis number) ...................................................... 10-14
Engine serial number .............................................. 10-15
F.M.V.S.S./C.M.V.S.S. certification label.......... 10-15
Emission control information label..................... 10-16
Tire and loading information label...................... 10-16
Air conditioner specification label ...................... 10-16 Installing front license plate....................................... 10-17
Removing air deflectors.............................................. 10-18
Vehicle loading information....................................... 10-19
Terms ........................................................................\
10-19
Vehicle load capacity............................................ 10-20
Loading tips ............................................................ 10-21
Measurement of weights.................................... 10-21
Towing a trailer............................................................. 10-22 Flat towing.............................................................. 10-22
Uniform tire quality grading...................................... 10-22
Treadwear ............................................................... 10-22
Traction AA, A, B and C...................................... 10-23
Temperature A, B and C...................................... 10-23
Emission control system warranty.......................... 10-23
Reporting safety defects............................................ 10-24
Readiness for Inspection/Maintenance (I/M)
test (US only)................................................................. 10-25
Event Data Recorders (EDR) .................................... 10-25
Owner’s Manual/Service Manual
order information ......................................................... 10-26

Gross Axle Weight Rating (GAWR)
for your vehicle. (See “Measurement
of weights” (P.10-21).)
Also check tires for proper inflation
pressures. See the Tire and Loading
Information label.
LOADING TIPS
.The GVW must not exceed GVWRor GAWR as specified on the F.M.
V.S.S./C.M.V.S.S. certification la-
bel.
.Do not load the front and rear axleto the GAWR. Doing so will exceed
the GVWR.
WARNING
.Properly secure all cargo to help
prevent it from sliding or shift-
ing. Do not place cargo higher
than the seatbacks. In a sudden
stop or collision, unsecured car-
go could cause personal injury.
.Do not load your vehicle any
heavier than the GVWR or the
maximum front and rear GAWRs. If you do, parts of
your vehicle can break, tire
damage could occur, or it can
change the way your vehicle
handles. This could result in loss
of control and cause personal
injury.
.Overloading could not only
shorten the life of your vehicle
and the tires, but also could
lead to hazardous vehicle hand-
ling and long braking distance.
This may cause a premature tire
malfunction, which could result
in a serious accident and perso-
nal injury. Failures caused by
overloading are not covered by
the vehicle’s warranty.
MEASUREMENT OF WEIGHTS
Secure loose items to prevent weight
shifts that could affect the balance of
your vehicle. When the vehicle is
loaded, drive to a scale and weigh
the front and the rear wheels sepa-
rately to determine axle loads. Indivi-
dual axle loads should not exceedeither of the gross axle weight ratings
(GAWR). The total of the axle loads
should not exceed the gross vehicle
weight rating (GVWR). These ratings
are given on the vehicle certification
label. If weight ratings are exceeded,
move or remove items to bring all
weights below the ratings.
Technical and consumer information10-21

10-22Technical and consumer information
Do not tow a trailer with your
vehicle.
FLAT TOWING
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when towing
a vehicle behind a recreational vehicle, such
as a motor home.
CAUTION
.Failure to follow these guidelines can
result in severe transmission damage.
. Whenever flat towing your vehicle,
always tow forward, never back-
ward.
. DO NOT tow any Automatic Trans-
mission (AT) vehicle with all four
wheels on the ground (flat towing).
Doing so WILL DAMAGE internal
transmission parts due to lack of
transmission lubrication.
. DO NOT tow any All-Wheel Drive
(AWD) vehicle with any of the wheels
on the ground. Doing so may cause
serious and expensive damage to the
powertrain.
. For emergency towing procedures
refer to “Towing recommended by INFINITI” (P.6-18).
Automatic Transmission
All-Wheel Drive (AWD) models:
Do not tow an AWD vehicle with any of the
wheels on the ground.
Two-Wheel Drive (2WD) models:
To tow a vehicle equipped with an automatic
transmission, an appropriate vehicle dolly
MUST
be placed under the towed vehicle’s
drive wheels. Alwaysfollow the dolly man-
ufacturer’s recommendations when using
their product. DOT (Department Of Transportation) Qual-
ity Grades: All passenger car tires must
conform to federal safety requirements in
addition to these grades.
Quality grades can be found where applic-
able on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating
based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon actual conditions of their use, however,
and may depart significantly from the norm
due to variations in driving habits, service
practices and differences in road character-
istics and climate.
TOWING A TRAILERUNIFORM TIRE QUALITY GRADING

TRACTION AA, A, B AND C
The traction grades, from highest to lowest,
are AA, A, B and C. Those grades represent
the tire’s ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of as-
phalt and concrete. A tire marked C may
have poor traction performance.
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking trac-
tion tests, and does not include accel-
eration, cornering, hydroplaning, or peak
traction characteristics.
TEMPERATURE A, B AND C
The temperature grades A (the highest), B,
and C, representing the tire’s resistance to
the generation of heat and its ability to
dissipate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature can
cause the material of the tire to degenerate
and reduce tire life, and excessive tempera-
ture can lead to sudden tire failure. The
grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal Motor VehicleSafety Standard No. 109. Grades B and A
represent higher levels of performance on
the laboratory test wheel than the minimum
required by law.
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, under-inflation, or excessive
loading, either separately or in combina-
tion, can cause heat build-up and possi-
ble tire failure.
Your INFINITI is covered by the following
emission warranties.
For USA:
.
Emission Defects Warranty
. Emissions Performance Warranty
Details of these warranties may be found
with other vehicle warranties in your War-
ranty Information Booklet that comes with
your INFINITI. If you did not receive a
Warranty Information Booklet, or it has
become lost, you may obtain a replacement
by writing to:
. INFINITI Division
Nissan North America, Inc.
Consumer Affairs Department
P.O. Box 685003
Franklin, TN 37068-5003
For Canada:
Emission Control System Warranty
Details of these warranties may be found
with other vehicle warranties in your War-
ranty and Roadside Assistance Information
that comes with your INFINITI. If you did not
receive a Warranty and Roadside Assistance
Information, or it has become lost, you may
obtain a replacement by writing to:
. Nissan Canada Inc.
5290 Orbitor Drive
Mississauga, Ontario,
L4W 4Z5
Technical and consumer information10-23
EMISSION CONTROL SYSTEM
WARRANTY

11-2
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-141
Compact spare tire ............................................ 8-44
Console box ........................................................... 2-48
CoolantCapacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ...................... 8-7, 8-9
Checking engine coolant level ............. 8-7, 8-8
Corrosion protection ............................................. 7-7
Courtesy light ....................................................... 2-57
Cruise control ........................................................ 5-71 Fixed speed cruise control (on
ICC system) .................................................... 5-90
Intelligent Cruise Control (ICC) ................. 5-73
Cruise indicator .................................................... 2-23
Cup holders ........................................................... 2-46
Current fuel consumption ................................. 2-28
D
Daytime running light system .......................... 2-39
Defroster switch
Rear window and outside mirror
defroster switch ............................................. 2-35
Dimensions .......................................................... 10-13
Direct Adaptive Steering ................................. 5-128
Distance Control Assist (DCA) ........................ 5-94
Distance to empty ............................................... 2-27
Drive belts .............................................................. 8-19
Drive positioner .................................................... 3-33
Driver assist system indicator .......................... 2-24 Driving
Cold weather driving .................................. 5-141
Driving with automatic transmission ....... 5-16
Precautions when starting and driving ..... 5-4
E
ECO drive indicator light ................................... 2-16
ECO mode ............................................................. 5-23
ECO pedal system ............................................... 5-23
Economy Fuel .................................................................. 5-123
Elapsed time ......................................................... 2-27
Elapsed time and trip odometer ..................... 2-27
Emission control information label ............... 10-16
Emission control system maintenance ............ 9-8
Emission control system warranty .............. 10-23
Engine Before starting the engine .......................... 5-14
Break-in schedule ........................................ 5-122
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ...................... 8-7, 8-9
Changing engine oil and filter .................... 8-11
Checking engine coolant level ............. 8-7, 8-8
Checking engine oil level ............................. 8-11
Coolant temperature gauge ......................... 2-8
Emergency engine shut off ......................... 5-13
Engine block heater ................................... 5-142
Engine compartment check locations ........ 8-4
Engine cooling system ................................... 8-6
Engine oil ........................................................ 8-10 Engine oil and filter
replacement indicator ................................... 2-25
Engine oil and oil
filter recommendation ................................. 10-8
Engine serial number ................................. 10-15
Engine specifications .................................. 10-11
Engine start operation indicator ............... 2-21
If your vehicle overheats ............................. 6-16
Remote engine start .................................... 3-20
Remote engine start
operation indicator ........................................ 2-21
Starting the engine ....................................... 5-15
Engine coolant temperature gauge .................. 2-8
Entry/exit function Automatic drive positioner ......................... 3-33
Event Data Recorders (EDR) ........................ 10-25
Exhaust gas (carbon monoxide) ........................ 5-4
Explanation of scheduled
maintenance items ................................................. 9-5
F
F.M.V.S.S./C.M.V.S.S. certification label .... 10-15
Filter Air cleaner housing filter ............................. 8-21
Changing engine oil and filter .................... 8-11
Flashers (See hazard warning
flasher switch) ......................................................... 6-2
Flat tire ...................................................................... 6-3
Flat Tire - Visit dealer warning ....................... 2-22
Flat towing ......................................................... 10-22
Floor mat cleaning ................................................. 7-5

11-6
Request switch (See Intelligent
Key system) ........................................................... 3-10
Roadside assistance program ............................. 6-2
Rollover ..................................................................... 5-9
RoofMoonroof ......................................................... 2-53
Run-flat tires .......................................................... 6-4
S
Safety Child seat belts ............................................... 1-21
Reporting safety defects .......................... 10-24
Seat adjustment Front power seat adjustment ....................... 1-3
Front seats ......................................................... 1-3
Seat belt(s) Child safety ..................................................... 1-21
Infants ............................................................... 1-22
Injured persons ............................................... 1-14
Larger children ............................................... 1-22
Precautions on seat belt usage ................. 1-12
Pre-crash seat belts with
comfort function ............................................ 1-14
Pregnant women ........................................... 1-14
Seat belt cleaning ............................................. 7-7
Seat belt extenders ....................................... 1-20
Seat belt maintenance ................................. 1-20
Seat belt warning light and chime ............ 2-15
Seat belts ......................................................... 1-12
Seat belts with pretensioners .................... 1-58
Shoulder belt height adjustment ............... 1-20 Small children .................................................. 1-22
Three-point type ............................................ 1-15
Seat(s) Driver-side memory ...................................... 3-33
Heated seats ................................................... 2-43
Seats .................................................................... 1-2
Security system
Vehicle security system ............................... 2-30
Security system (INFINITI Vehicle
Immobilizer System)
Engine start ..................................................... 2-31
Shift lever
Shift lock release ........................................... 5-19
Shift lock release, Transmission ...................... 5-19
Shifting
Automatic transmission ............................... 5-16
Shoulder belt height adjustment ..................... 1-20
SNOW mode ......................................................... 5-23
Spare tire ............................................................. 10-12
Spark plugs ............................................................ 8-20
Speedometer ............................................................ 2-7
SPORT mode ........................................................ 5-23
SPORT+ mode ...................................................... 5-23
Standard maintenance .......................................... 9-7
STANDARD mode ............................................... 5-22
Starting Before starting the engine .......................... 5-14
Jump starting .................................................. 8-18
Precautions when starting and driving ..... 5-4
Push starting ................................................... 6-16
Starting the engine ....................................... 5-15 Status light, Front passenger air bag ............ 1-50
Steering
Direct Adaptive Steering .......................... 5-128
Heated steering wheel ................................ 2-44
Power steering fluid ..................................... 8-14
Power steering system .............................. 5-127
Tilt/telescopic steering ................................ 3-28
Storage ................................................................... 2-46
Storage box ........................................................... 2-49
Sun visors ............................................................... 3-30
Sunglasses holder ................................................ 2-47
Supplemental air bag warning labels ............. 1-59
Supplemental air bag warning light .... 1-59, 2-15
Supplemental restraint system ........................ 1-42 Precautions on supplemental
restraint system ............................................. 1-42
Switch Autolight switch ............................................. 2-36
Fog light switch ............................................. 2-42
Hazard warning flasher switch .................... 6-2
Headlight switch ............................................ 2-35
Ignition switch ................................................ 5-16
Power door lock switch ................................. 3-5
Rear window and outside mirror
defroster switch ............................................. 2-35
Turn signal switch ......................................... 2-41
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42

T
Tachometer ............................................................. 2-8
Temperature gaugeEngine coolant temperature gauge ............ 2-8
Theft (INFINITI Vehicle Immobilizer System)
Engine start ..................................................... 2-31
Thigh extension ....................................................... 1-5
Three-way catalyst ................................................ 5-5
Tilt/telescopic steering ...................................... 3-28
Tire Flat Tire - Visit dealer warning ................. 2-22
Run-flat tires .................................................... 6-4
Tire replacement indicator .......................... 2-25
Tire rotation .................................................... 8-41
Tire pressure
Low tire pressure warning light ................ 2-12
Tire Pressure Low - Add Air warning ........... 2-22
Tires
Flat tire ............................................................... 6-3
Low tire pressure
warning system ........................... 5-5, 6-3, 8-32
Run-flat tires .................................................. 8-39
Spare tire ........................................................ 8-44
Tire and Loading
information label ............................. 8-34, 10-16
Tire chains ....................................................... 8-40
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-32
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-32 Types of tires ................................................. 8-38
Uniform tire quality grading .................... 10-22
Wheel/tire size ............................................ 10-12
Wheels and tires ............................................ 8-32
Towing Flat towing ................................................... 10-22
Tow truck towing .......................................... 6-17
Towing a trailer ........................................... 10-22
TPMS Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-32
TPMS, Tire pressure monitoring system TPMS with Tire Inflation Indicator ............ 5-8
Trailer towing .................................................... 10-22
Transceiver HomeLink® Universal Transceiver ........... 2-58
Transmission Automatic Transmission Fluid (ATF) ....... 8-13
Driving with automatic transmission ....... 5-16
Transmission shift lever lock release ....... 5-19
Transmitter (See remote keyless
entry system) ........................................................ 3-16
Traveling or registering in
another country ................................................ 10-14
Trip computer ....................................................... 2-27
Trip odometer ....................................................... 2-27
Trunk Interior trunk lid release .............................. 3-25
Light .................................................................. 2-57
Pass-through ..................................................... 1-7
Trunk hooks ................................................... 2-50 Trunk lid ........................................................... 3-23
Trunk lid release switch ............................... 3-24
Trunk open request switch ......................... 3-24
Trunk release power cancel switch .......... 3-25
Turn signal switch ............................................... 2-41
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading .......................... 10-22
V
Vanity mirror ......................................................... 3-32
Vanity mirror lights ............................................. 2-57
Variable voltage control system ..................... 8-19
Vehicle Dimensions ................................................... 10-13
Recovery (freeing a stuck vehicle) ............ 6-19
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42
Vehicle dynamic control
(VDC) system ................................................ 5-132
Vehicle Dynamic Control (VDC)
warning light ................................................... 2-15
Vehicle identification number (VIN) ............ 10-14
Vehicle information display .............................. 2-19
Vehicle loading information ............................ 10-19
Vehicle security system ...................................... 2-30
Vehicle speedAverage speed ............................ 2-27
Ventilators ............................................................... 4-2
11-7