four wheel drive INFINITI Q50 2019 Warranty Information Booklet

41IMPORTANT TIRE SAFETY INFORMATION¹
Any tire, no matter how well constructed,may
fail due to improper maintenance or
service factors. This could create a risk of
property damage and serious or fatal injury.
Disregarding any of the safety precautions
and instructions contained in this manual
may result in tire failure or explosion causing
serious personal injury or death. For your
safety, comply with the following:
TIRE INFLATION Keep tires inflated to the pressures
recommended on the tire data placard. (See
your Owner’s Manual for location.) These
inflation pressures must be maintained as
a minimum. However, do not exceed the
maximum pressure rating indicated on the tire
sidewall.
CHECK INFLATION PRESSURES ON ALL
YOUR TIRES, INCLUDING THE SPARE,
WHEN TIRES ARE COLD, AT LEAST ONCE
A MONTH BEFORE DRIVING.
Failure to maintain correct inflation may
result in improper vehicle handling and may
cause rapid and irregular tire wear, sudden tire
destruction, loss of vehicle control and serious
personal injury. Therefore, inflation pressures
should be checked at least once a month and
always prior to long distance trips.
Pressures should be checked when tires are
cold. The tires are cold when your vehicle
has been driven less than a mile at moderate
speed after being stopped for three or more
hours.
CHECKING PRESSURE WHEN
TIRES ARE HOT
If you must add air when your tires are hot,
add four pounds per square inch (psi) (28kPa)
above the recommended cold air pressure.
Recheck the inflation pressure when the tire
is cold.
For Example Only:
Gauge reading of hot tire: 32psi
If recommended pressure is: 30psi
Desired gauge reading of hot tire 30 + 4psi =
34psi
Check cold pressures as soon as possible, at
least by the next day. Never “bleed” air from
hot tires as your tire will be underinflated. Use
an accurate tire gauge to check pressures.
Never allow children to air up tires.
DRIVING ON ANY TIRE THAT DOES
NOT HAVE THE CORRECT INFLATION
PRESSURE IS DANGEROUS. For
replacement tires, the correct inflation
pressure will be provided by your tire retailer.
If not, refer to the vehicle decal.
Underinflation produces extreme flexing of
the sidewalls and builds up heat which may
result in sudden tire destruction and serious
personal injury. Overinflating can cause the
tire to be more susceptible to impact damage.
LOAD LIMITS
DO NOT OVERLOAD. DRIVING ON ANY
OVERLOADED TIRE IS DANGEROUS. Never
load your tires beyond the load carrying limits
molded into the sidewall of the tires or the
maximum vehicle load limit as shown on the
vehicle tire data placard, whichever is less.
Overloading causes heat to build up which
can lead to sudden tire failure and serious
personal injury.
SPEED LIMITS AND SPEED RATED
TIRES
HIGH SPEED DRIVING CAN BE
DANGEROUS. Never operate your vehicle
in excess of lawful speeds or the maximum
speeds justified by the driving conditions.
Excessive speeds or racing can cause heat
buildup in a tire leading to possible failure and
serious personal injury.
Correct inflation pressure is especially
important. However, at high speeds, even
with the correct inflation pressure, a road
hazard, for example, is more difficult to avoid
and if contact is made, there is a greater
chance of causing tire damage than at the
lower speed. Moreover, driving at high speed
reduces the reaction time available to avoid
accidents and bring your vehicle to a safe
stop. If you see any damage to a tire or wheel,
replace it with your spare tire and see your
tire retailer at once.
(Continued on next page)1 Provided by and published at the request of the tire manufacturers/warrantors.

45
WORN TIRES
Never drive on worn tires. Tires should be
replaced by trained personnel when 2/32nds
of an inch tread depth remains, as indicated
by the tread wear indicators molded into the
tread grooves. In most states, it is illegal to
drive with less than 2/32nds of an inch of
tread remaining.
TIRE MIXING
For best performance select tires similar in
size and load rating to the original equipment
tires. It is recommended that the same size
and type of tire be used on all four wheel
positions. In certain tires, casing ply material
and ply construction may vary as indicated
on the sidewall of the tire. When changing
or replacing tires, it is preferred that all four
tires are the same construction type (i.e.,
High Performance, All Season, Mud & Snow)
and construction (Radial or Bias Ply). Before
mixing tires of different types on a vehicle in
any configuration, be sure to check the vehicle
Owner’s Manual for its recommendations.
Tires which meet the Rubber Manufacturer’s
Association (RMA) definition of mud and
snow tires are marked M/S, M+S, M&S. On
such tires, this designation is molded into the
sidewall. Tires without this notation are not
recommended for mud and/or snow driving.
If snow tires are needed, it is necessary
to select tires equivalent in size and load
rating to the original equipment tires.
Always fit performance snow tires in sets of four (4) for optimum mud & snow traction
and maintenance of vehicle handling
characteristics. If you do not, it may adversely
affect the safety and handling of your vehicle.
It is also important to check the vehicle
Owner’s Manual before mixing or matching
tires on 4-wheel drive vehicles as this may
require special precautions.
Please refer to your Owner’s Manual for more
information on tire replacement precautions. TIRE ROTATION
Tires on your Infiniti vehicle should be rotated
every 7,500 miles or as irregular wear
develops. If irregular wear becomes apparent
or if the wear rate on the tires is perceptibly
uneven, the tires should be rotated in such
a way to alleviate the problem. Check your
vehicle for any mechanical problems and
correct if necessary. Any rotation pattern or
procedure may be followed including those
indicated in the Owner’s Manual. Some tires
have arrows on the sidewall showing the
direction in which the tire should turn. When
rotating this type of tire, care must be taken
to maintain the proper turning direction as
indicated by the arrows. Some vehicles have
different tire sizes specified for front and rear
axles. Tires on these vehicles should not be
rotated side to side (unless they are non-
directional). Where a temporary type spare tire
is available, it should not be included in the tire
rotation schedule. Such tires are intended for
temporary use only.
REPLACING TWO TIRES
If your vehicle was originally equipped with
four tires that were the same size and you are
only replacing two of the four 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 accident and personal injury.
TRAILER TOWING
If you anticipate towing a trailer, you should
see a tire retailer for advice concerning the
correct size of tire and pressure. Tire size and
pressure will depend on the type and size of
the trailer and hitch utilized, but in no case
must the maximum cold inflation pressure or
the tire load rating be exceeded. Check the tire
decal and your Owner’s Manual for further
recommendations on trailer towing.
TIRE ALTERATIONS
Do not perform any alterations on your tires.
Alterations may prevent proper performance,
leading to tire damage, which can result in an
accident. Tires which become unserviceable
due to alterations such as truing, whitewall
inlays, addition of balancing or sealant liquids,
may be excluded from warranty coverage.
Consult your tire warranty.
(Continued on next page)
IMPORTANT TIRE SAFETY INFORMATION¹