wheel size NISSAN 370Z ROADSTER 2019 Owners Manual

ever, if the occupant does not sit in the
seat properly (for example, by not sitting
upright, by sitting on an edge of the seat,
or by otherwise being out of position), this
could cause the sensor to turn the air bag
OFF. Always be sure to be seated and
wearing the seat belt properly for the
most effective protection by the seat belt
and supplemental air bag.
The occupant classification sensor is
designed to operate as described above
to turn the front passenger air bag OFF
for specified child restraints. Failing to
properly secure child restrains and to use
the ALR mode (child restraint mode) may
allow the restraint to tip or move in an
accident or sudden stop. This can also
result in the front passenger air bag
inflating in a crash instead of being OFF.
(See “Child restraints” (P.1-19) for proper
use and installation.)
If the front passenger seat is not occu-
pied, the front passenger air bag is
designed not to inflate in a crash. How-
ever, heavy objects placed on the seat
could result in air bag inflation, because of
the object being detected by the occu-
pant classification sensor. Other condi-
tions could also result in air bag inflation,
such as if a child is standing on the seat,
or if two children are on the seat, contrary
to the instructions in this manual. Alwaysbe sure that you and all vehicle occupants
are seated and restrained properly.
Using the front passenger air bag status
light, you can monitor when the front
passenger air bag is automatically turned
OFF with the seat occupied. The light will
not illuminate when the front passenger
seat is unoccupied.
If an adult occupant is in the seat but the
front passenger air bag status light is
illuminated (indicating that the air bag is
OFF), it could be that the person is a small
adult, or is not sitting on the seat
properly.
If a child restraint must be used in the
front seat, the front passenger air bag
status light may or may not be illumi-
nated, depending on the size of the child
and the type of child restraint being used.
If the front passenger air bag status light
is not illuminated (indicating that the air
bag might inflate in a crash), it could be
that the child restraint or seat belt is not
being used properly. Make sure that the
child restraint is installed properly, the
seat belt is used properly and the occu-
pant is positioned properly. If the front
passenger air bag status light is still not
illuminated, try a different child restraint.
If the front passenger air bag status light
will not illuminate even though you be-
lieve that the child restraint, the seat beltsand the occupant are properly positioned,
the system may be sensing an unoccu-
pied seat (in which case the air bag is
OFF). Your NISSAN dealer can check that
the system is OFF by using a special tool.
However, until you have confirmed with
your dealer that your air bag is working
properly, do not transport a child in this
vehicle.
The NISSAN Advanced Air Bag System
and front passenger air bag status light
will take a few seconds to register a
change in the front passenger seat sta-
tus. However, if the seat becomes unoc-
cupied, the front passenger air bag status
light will remain off.
If a malfunction occurs in the front
passenger air bag system, the supple-
mental air bag warning light
, located
in the meter and gauges area will blink.
Have the system checked. It is recom-
mended you visit a NISSAN dealer for this
service.
Other supplemental front-impact
air bag precautions
WARNING
. Do not place any objects on the
steering wheel pad or on the
instrument panel. Also, do not
Safety — Seats, seat belts and supplemental restraint system1-39

2-14Instruments and controls
If you have a flat tire, replace it
with a spare tire (if so equipped)
or repair it with the tire puncture
repair kit (if so equipped) as soon
as possible. If no tire is flat and all
tires are properly inflated, it is
recommended you consult a
NISSAN dealer.
. 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 ap-
proximately 1 minute. The light
will remain on after the 1 minute.
Have your tires replaced and/or
TPMS system reset as soon as
possible. It is recommended you
visit a NISSAN dealer for these
services.
. Replacing tires with those not
originally specified by NISSAN
could affect the proper operation
of the TPMS.
CAUTION
.The TPMS is not a substitute for
the regular tire pressure check. Be sure to check the tire pressure
regularly.
. If the vehicle is being driven at
speeds of less than 16 MPH (25
km/h), the TPMS may not operate
correctly.
. Be sure to install the specified
size of tires to the four wheels
correctly.
Master warning light
When the ignition switch is in the ON
position, the master warning light illumi-
nates if any of the following are displayed
on the vehicle information display:
.No key warning
. Low fuel warning
. Low washer fluid warning
. Parking brake release warning
. Door/rear hatch/trunk open warning
. Loose fuel cap warning
. Check tire pressure warning
. Extended storage fuse warning
See “Vehicle information display” (P.2-19).
Seat belt warning light and
chime
The light and chime remind you to fasten
seat belts. The light illuminates whenever
the ignition switch is pushed to the ON
position, and will remain illuminated until
the driver’s seat belt is fastened. At the
same time, the chime will sound for about
6 seconds unless the driver’s seat belt is
securely fastened.
The seat belt warning light for the front
passenger will illuminate if the seat belt is
not fastened when the front passenger’s
seat is occupied. For approximately 5
seconds after the ignition switch is in
the ON position, the system does not
activate the warning light for the front
passenger.
See “Seat belts” (P.1-10) for precautions on
seat belt usage.
Supplemental air bag warning
light
After pushing the ignition switch to the
ON position, the supplemental air bag
warning light will illuminate. The air bag
warning light will turn off after about 7
seconds if the front air bag, side air bag
and curtain air bag systems and/or pre-
tensioner system are operational.

SAA1896
HOW TO READ DISPLAYED LINES
Guiding lines which indicate the vehicle
width and distances to objects with
reference to the bumper line
are
displayed on the monitor.
Distance guide lines:
Indicate distances from the bumper.
. Red line
: approx. 1.5 ft (0.5 m)
. Yellow line
: approx. 3 ft (1 m)
. Green line
: approx. 7 ft (2 m)
. Green line
: approx. 10 ft (3 m)
Vehicle width guide lines
:
Indicate the vehicle width when backing
up.
Predictive course lines
: Indicate the predictive course when back-
ing up. The predictive course lines will be
displayed on the monitor when the shift
lever is in the R (Reverse) position and the
steering wheel is turned. The predictive
course lines will move depending on how
much the steering wheel is turned and
will not be displayed while the steering
wheel is in the neutral position.
The vehicle width guide lines and the
width of the predictive course lines are
wider than the actual width and course.
HOW TO PARK WITH PREDICTIVE
COURSE LINES
WARNING
.
If the tires are replaced with
different sized tires, the predic-
tive course line may not be dis-
played correctly.
. On a snow-covered or slippery
road, there may be a difference
between the predictive course
line and the actual course line.
. The displayed lines will appear
slightly off to the right because
the rear view camera is not in-
stalled in the rear center of the
vehicle.
SAA1897
1. Visually check that the parking space
is safe before parking your vehicle.
2. The rear view of the vehicle is dis- played on the screen
when the shift
lever is moved to the R (Reverse)
position.
Center display, heater, air conditioner, audio, phone and voice recognition systems4-25

faces even with ABS. Stopping
distances may also be longer on
rough, gravel or snow covered
roads, or if you are using tire
chains. Always maintain a safe
distance from the vehicle in front
of you. Ultimately, the driver is
responsible for safety.
. Tire type and condition may also
affect braking effectiveness.
— When replacing tires, install
the specified size of tires on
all four wheels.
— When installing a spare tire, make sure that it is the proper
size and type as specified on
the Tire and Loading Informa-
tion label. See “Tire and Load-
ing Information label” (P.10-
14) of this manual.
— For detailed information, see “Wheels and tires” (P.8-26) of
this manual.
The Anti-lock Braking System (ABS) con-
trols the brakes so the wheels do not lock
during hard braking or when braking on
slippery surfaces. The system detects the
rotation speed at each wheel and varies
the brake fluid pressure to prevent each
wheel from locking and sliding. By pre- venting each wheel from locking, the
system helps the driver maintain steering
control and helps to minimize swerving
and spinning on slippery surfaces.
Using the system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady
pressure, but do not pump the brakes.
The ABS will operate to prevent the
wheels from locking up. Steer the vehicle
to avoid obstacles.
WARNING
Do not pump the brake pedal. Doing
so may result in increased stopping
distances.
Self-test feature
The ABS includes electronic sensors, elec-
tric pumps, hydraulic solenoids and a
computer. The computer has a built-in
diagnostic feature that tests the system
each time you start the engine and move
the vehicle at a low speed in forward or
reverse. When the self-test occurs, you
may hear a “clunk” noise and/or feel a
pulsation in the brake pedal. This is
normal and does not indicate a malfunc-
tion. If the computer senses a malfunc-
tion, it switches the ABS off and
illuminates the ABS warning light on the
instrument panel. The brake system then
operates normally, but without anti-lock
assistance.
If the ABS warning light illuminates during
the self-test or while driving, have the
vehicle checked. It is recommended you
visit a NISSAN dealer for this service.
Normal operation
The ABS operates at speeds above 3 to 6
MPH (5 to 10 km/h).
When the ABS senses that one or more
wheels are close to locking up, the
actuator rapidly applies and releases
hydraulic pressure. This action is similar
to pumping the brakes very quickly. You
may feel a pulsation in the brake pedal
and hear a noise from under the hood or
feel a vibration from the actuator when it
is operating. This is normal and indicates
that the ABS is operating properly. How-
ever, the pulsation may indicate that road
conditions are hazardous and extra care
is required while driving.
Starting and driving5-29

FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing,
apply deicer through the key hole. If the
lock becomes frozen, heat the key before
inserting it into the key hole or use the
Intelligent Key system.
ANTIFREEZE
In the winter when it is anticipated that
the outside temperature will drop below
32°F (0°C), check antifreeze to assure
proper winter protection. For additional
information, see “Engine cooling system”
(P.8-4).
BATTERY
If the battery is not fully charged during
extremely cold weather conditions, the
battery fluid may freeze and damage the
battery. To maintain maximum efficiency,
the battery should be checked regularly.
For additional information, see “Battery”
(P.8-11).
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without
antifreeze, drain the cooling system, in-
cluding the engine block. Refill before
operating the vehicle. For details, see
“Engine cooling system” (P.8-4).
TIRE EQUIPMENT
SUMMER tires have a tread designed to
provide superior performance on dry
pavement. However, the performance of
these tires will be substantially reduced in
snowy and icy conditions. If you operate
your vehicle on snowy or icy roads,
NISSAN recommends the use of MUD &
SNOW or ALL SEASON tires on all four
wheels. It is recommended you consult a
NISSAN dealer for the tire type, size, speed
rating and availability information.
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 may be used. For details, see
“Tire chains” (P.8-33) of this manual.
SPECIAL WINTER EQUIPMENT
It is recommended that the following
items be carried in the vehicle during
winter:
.A scraper and stiff-bristled brush to
remove ice and snow from the win-
dows and wiper blades.
. A sturdy, flat board to be placed under
the jack to give it firm support.
. A shovel to dig the vehicle out of
snowdrifts.
. Extra window washer fluid to refill the
reservoir tank.
DRIVING ON SNOW OR ICE
WARNING
. Wet ice (32°F, 0°C and freezing
rain), very cold snow or ice can be
slick and very hard to drive on.
The vehicle will have much less
traction or “grip” under these
conditions. Try to avoid driving
on wet ice until the road is salted
or sanded.
. Whatever the condition, drive
with caution. Accelerate and slow
down with care. If accelerating or
downshifting too fast, the drive
wheels will lose even more trac-
Starting and driving5-33
COLD WEATHER DRIVING

SCE0504
2. Loosen each wheel nut one or twoturns by turning counterclockwise
with the wheel nut wrench. Do not
remove the wheel nuts until the tire
is off the ground.
3. To lift the vehicle, securely hold the jack lever and rod with both hands as
shown above. Carefully raise the ve-
hicle until the tire clears the ground.
Remove the wheel nuts, and then
remove the tire.
SCE0661
Installing the spare tire
The T-type spare tire is designed for
emergency use. (See specific instruc-
tions under the heading “Wheels and
tires” (P.8-26).)
1. Clean any mud or dirt from the sur-face between the wheel and hub.
2. Carefully put the spare tire on and tighten the wheel nuts finger tight.
Check that all the wheel nuts contact
the wheel surface horizontally.
Models equipped with different
sized tires in the front and rear:
When replacing a front tire, make sure
that the hole in the spare tire wheel is
In case of emergency6-7

SDI1606Example
Tire size (example:
P215/60R16 94H)
1. P: The “P” indicates the tire isdesigned 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 number, 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 number 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.
JVM0694XExample
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, below or to the left or
right of the Tire Identification
Number.
2. Two-digit code: Manufacturer’s identification mark
Do-it-yourself8-31

.Replacement tires may have a
lower speed rating than the fac-
tory 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
originally specified by NISSAN
could affect the proper operation
of the TPMS.
. For additional information re-
garding tires, refer to “Important
Tire Safety Information” (US) or
“Tire Safety Information” (Cana-
da) in the Warranty Information
Booklet.
All season tires
NISSAN specifies all season tires on some
models to provide good performance all
year, including snowy and icy road con-
ditions. 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
NISSAN specifies summer tires on some
models to provide superior performance
on dry roads. Summer tire performance is
substantially reduced in snow and ice.
Summer tires do not have the tire trac-
tion rating M&S on the tire sidewall.
If you plan to operate your vehicle in
snowy or icy conditions, NISSAN recom-
mends 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 max-
imum vehicle speed. Never exceed the
maximum speed rating of the tire.
If you install snow tires, they must be the
same brand, construction and tread pat-
tern on all four wheels, and the same
sizes as the original tires.
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 sur-
faces, may be poorer than that of non-
studded snow tires.
TIRE CHAINS
CAUTION
Tire chains/cables should not be
installed on 19-inch size tires. Doing
so will cause damage to the vehicle.
If you plan to use tire chains/cables,
you should install 18-inch size tires
on your vehicle.
Use of tire chains may be prohibited
according 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 suggestions.
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 com-
ponent required to accommodate the
Do-it-yourself8-33

8-34Do-it-yourself
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 re-
commended 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 load-
ing your vehicle when using tire chains. In
addition, drive at a reduced speed. Other-
wise, 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 me-
chanisms of the vehicle due to some
overstress.CHANGING WHEELS AND TIRES
Tire rotation
Tires cannot be rotated on this
vehicle because the front tires are
a different size than the rear tires.
A pin is on the front brake rotor to
prevent the rear wheels from being
installed in place of the front
wheels. The spare tire can be
installed in place of the front and
rear wheels. When installing the
spare tire in the front wheel, the
hole in the spare tire wheel must be
aligned with the pin on the brake
rotor.
WARNING
.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
regarding tires, refer to “Im-
portant Tire Safety Informa- tion” (US) or “Tire Safety
Information” (Canada) in the
Warranty Information Book-
let.

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
inspected for wear, cracking,
bulging 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 tech-
nician, because some tire
damage may not be ob-
vious. Replace the tires as
necessary to prevent tire
failure and possible perso-
nal injury.
. Improper service of the
spare tire may result in ser-
ious personal injury. If it is
necessary to repair the
spare tire, it is recom-
mended you visit a NISSAN
dealer for this service.
. For additional information
regarding tires, refer to “Im- portant Tire Safety Informa-
tion” (US) or “Tire Safety
Information” (Canada) in the
Warranty Information Book-
let.
Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load
carrying capacity as originally equipped.
(See “Specifications” (P.10-9) for recom-
mended 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, con-
struction (bias, bias-belted or ra-
dial), or tread patterns can
adversely affect the ride, braking,
handling, ground clearance,
body-to-tire clearance, tire chain
clearance, speedometer calibra-
tion, headlight aim and bumper
height. Some of these effects
may lead to accidents and could
result in serious personal injury.
Do-it-yourself8-35