tires MAZDA MODEL CX-30 2020 Service Manual

Tire Labeling
▼Tire Labeling
Federal law requires tire manufacturers
to place standardized information on
the sidewall of all tires. This
information identifies and describes
the fundamental characteristics of the
tire and also provides a tire
identification
number for safety
standard certification and in case of a
recall.
▼ Information on Passenger Vehicle
Tires
Please refer to the sample below.
1. SAFETY WARNING
2. Passenger car tire
3. Nominal width of tire in millimeters
4. Ratio of height to width (aspect
ratio)
5. Radial
6. Run-flat tire
7. Rim diameter code
8. TIN: U.S. DOT tire
identification
number
9. Load index & speed symbol
10.Severe snow conditions
11.Tire ply composition and materials used
12.Max. load rating
13.Tread wear, traction and temperature grades
14.Max. permissible inflation pressure

P215/65R15 95H is an example of a
tire size and load index rating. Here is
an explanation of the various
components of that tire size and load
index rating. Note that the tire size and
load index rating may be different from
the example.
P
Indicates a tire that may be installed on
cars, SUVs, minivans and light trucks as
designated by the Tire and Rim
Association (T&RA).
NOTE
If your tire size does not begin with a
letter this may mean it is designated by
either ETRTO (European Tire and Rim
Technical Organization) or JATMA
(Japan Tire Manufacturing
Association).
215
“215” is the nominal width of the tire
in millimeters. This three-digit number
gives the width in millimeters of the
tire from sidewall edge to sidewall
edge. In general, the larger the
number, the wider the tire.
65
“65” is the aspect ratio. This two-digit
number indicates the tire's ratio of
height to width.
R
“R” is the tire construction symbol. R
indicates “Radial ply construction”.
15
“15” is the wheel rim diameter in
inches.
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95
“95” is the Load Index. This two-or
three-digit number indicates how
much weight each tire can support.
H
“H” is the speed rating. The speed
rating denotes the maximum speed for
which the use of the tire is rated.
Letter Rating Speed Rating
Q 99 mphR 106 mph
S 112 mph
T 118 mph
U 124 mph
H 130 mph
V 149 mph
W 168
* mph
Y 186
* mph
* For tires with a maximum speed capability over
149 mph, tire manufacturers sometimes use the
letters ZR. For tires with a maximum speed
capability over 186 mph, tire manufacturers
always use the letters ZR.
M+S or M/S: Mud and Snow
AT: All Terrain.
AS: All Season. The “M+S” or “M/S”
indicates that the tire has some
functional use in mud and snow.
U.S. DOT Tire Identification Number
(TIN)
This begins with the letters “DOT”
which indicates the tire meets all
federal standards. The next two
numbers or letters are the plant code
where it was manufactured, and the
last four numbers represent the week
and year the tire was manufactured.
For example, the numbers 457 means
the 45st week of 1997. After 2000 the
numbers go to four digits. For
example, the number 2102 means the
21th week of 2002. The other
numbers are marketing codes used at
the manufacturer's discretion. This
information is used to contact
consumers if a tire defect requires a
recall.
Tire Ply Composition and Materials
Used
The number of plies indicates the
number of layers of rubber-coated
fabric in the tire. In general, the greater
the number of plies, the more weight a
tire can support. Tire manufacturers
also must indicate the tire materials,
which include steel, nylon, polyester,
and other.
Maximum Load Rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tire.
Maximum Permissible Inflation
Pressure
This number is the greatest amount of
air pressure that should ever be put in
the tire under normal driving
conditions.
Tread Wear, Traction and Temperature
Grades
Trea d wea r : The tread wear 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 example,
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.
Traction: The traction grades, from
highest to lowest are AA, A, B, and C.
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The grades represent the tire's ability
to stop on wet pavement as measured
under controlled conditions on
specified government test surfaces of
asphalt and concrete. A tire marked C
may have poor traction performance.
Temperature: The temperature grades
are 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.
Snow Tires
In some heavy snow areas, local
governments may require true snow
tires, those with very deeply cut tread.
These tires should only be used in pairs
or placed on all four wheels. Make
sure you purchase snow tires that are
the same size and construction type as
the other tires on your vehicle.
SAFETY WARNING
The following safety warning appears
on the tire's sidewall.
SERIOUS INJURY MAY RESULT FROM:
EXPLOSION OF TIRE/RIM ASSEMBLY
DUE TO IMPROPER
MOUNTING-MATCH TIRE
DIAMETER TO RIM DIAMETER;
NEVER EXCEED 40 psi (275 kPa) TO
SEAT BEADS-ONLY SPECIALLY
TRAINED PERSONS SHOULD
MOUNT TIRES.
TIRE FAILURE DUE TO UNDER-INFLATION/
OVERLOADING/DAMAGE-FOLLOW
OWNER'S MANUAL AND PLACARD
IN VEHICLE-FREQUENTLY CHECK
INFLATION PRESSURE AND INSPECT
FOR DAMAGE.
▼ Information on Temporary Tires
Please refer to the sample below.
1. Temporary tires
2. Nominal width of tire in millimeters
3. Ratio of height to width (aspect
ratio)
4. Diagonal
5. Rim diameter code
6. Load index & speed symbol

T115/70D16 90M is an example of a
tire size and load index rating. Here is
an explanation of the various
components of that tire size and load
index rating. Note that the tire size and
load index rating may be different from
the example.
T
Indicates a tire that may be installed on
cars, SUVs, minivans and light trucks as
designated by the Tire and Rim
Association (T&RA).
115
“115” is the nominal width of the tire
in millimeters. This three-digit number
gives the width in millimeters of the
tire from sidewall edge to sidewall
edge. In general, the larger the
number, the wider the tire.
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70
“70” is the aspect ratio. This two-digit
number indicates the tire's ratio of
height to width.
D
“D” is the tire construction symbol. D
indicates “diagonal ply construction”.
16
“16” is the wheel rim diameter in
inches.
90
“90” is the Load Index. This two-or
three-digit number indicates how
much weight each tire can support.
M
“M” is the speed rating. The speed
rating denotes the maximum speed for
which the use of the tire is rated.
Letter Rating Speed Rating
M 81 mph
Location of the Tire Label (Placard)
▼Location of the Tire Label (Placard)
You will find the tire label containing
tire
inflation pressure by tire size and
other important information on the
driver's side B-pillar or on the edge of
the driver's door frame.

SAMPLE
▼ Recommended Tire Inflation
Pressure
On the tire label you will find the
recommended tire
inflation pressure in
both kPa and psi for the tires installed
as original equipment on the vehicle. It
is very important that the inflation
pressure of the tires on your vehicle is
maintained at the recommended
pressure. You should check the tire
pressure regularly to insure that the
proper inflation pressure is maintained.
Refer to Tires on page 9-7.
NOTE
Tire pressures listed on the vehicle
placard or tire information label
indicate the recommended cold tire
inflation pressure, measured when the
tires are cold, after the vehicle has
been parked for at least 3 hours. As
you drive, the temperature in the tire
warms up, increasing the tire pressure.
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WARNING
Always check the tire inflation
pressures on a regular basis according
to the recommended tire inflation
pressure on the tire label and in
conjunction with the information in
this owner's manual:
Driving your vehicle with
under-inflated tires is dangerous.
Under-inflation is the most common
cause of failures in any kind of tire and
may result in severe cracking, tread
separation or “blowout”, with
unexpected loss of vehicle control and
increased risk of injury. Under-inflation
increases sidewall flexing and rolling
resistance, resulting in heat buildup
and internal damage to the tire. It
results in unnecessary tire stress,
irregular wear, loss of control and
accidents. A tire can lose up to half of
its air pressure and not appear to be
flat!
It is impossible to determine whether
or not tires are properly inflated just by
looking at them.
▼ Checking Tire Pressure
1. When you check the air pressure,
make sure the tires are cold
―meaning they are not hot from
driving even a mile.
2. Remove the cap from the valve on
one tire.
3. Firmly press a tire gauge onto the
valve.
4. Add air to achieve recommended air pressure.
5. If you overfill the tire, release air by pushing on the metal stem in the
center of the valve. Then recheck
the pressure with your tire gauge.
6. Replace the valve cap.
7. Repeat with each tire, including the spare.
NOTE
Some spare tires require higher
inflation pressure.
8. Visually inspect the tires to make sure there are no nails or other
objects embedded that could poke
a hole in the tire and cause an air
leak.
9. Check the sidewalls to make sure there are no gouges, cuts, bulges,
cracks or other irregularities.
▼Glossary of Terms
Tire Placard:
A label indicating the OE
tire sizes, recommended inflation
pressure, and the ma ximum weight the
vehicle can carry.
Tire Identification Number (TIN): A
number on the sidewall of each tire
providing information about the tire
brand and manufacturing plant, tire
size, and date of manufacture.
Inflation Pressure: A measure of the
amount of air in a tire.
kPa: Kilopascal, the metric unit for air
pressure.
psi: Pounds per square inch, the
English unit for air pressure.
B-pillar: The structural member at the
side of the vehicle behind the front
door.
Original Equipment (OE): Describes
components originally equipped on
the vehicle.
Ve h i c l e L o a d L i m i t : The maximum
value of the combination weight of
occupants and cargo.
Bead Area of the Tire: Area of the tire
next to the rim.
Sidewall Area of the Tire: Area
between the bead area and the tread.
Trea d A rea o f t h e Ti re : Area on the
perimeter of the tire that contacts the
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road when it's mounted on the
vehicle.

Seating capacity means the total
allowable number of vehicle
occupants. Seating capacity is
described on the tire label.

Production options weight is the
combination weight of installed regular
production options weighing over 2.3
kilograms in excess of the standard
items which they replace, and not
previously considered in the curb
weight or accessory weight, including
heavy duty brakes, ride levelers, roof
rack, heavy duty battery, and special
trim.

Rim is the metal support (wheel) for a
tire or a tire and tube assembly upon
which the tire beads are seated.Tire Maintenance
▼ Tire Maintenance
Improper or inadequate vehicle
maintenance can cause tires to wear
abnormally. Here are some important
maintenance points:
▼Tire
Inflation Pressure
Inspect all tire pressure monthly
(including the spare) when the tires are
cold. Maintain recommended
pressures for the best ride, top
handling , and minimum tire wear. Use
the pressures specified on the vehicle
tire information placard or tire label for
optimum service.
▼Tire Rotation
To equalize tread wear, rotate the tires
every 16,000 km (10,000 miles) at the
latest or sooner if irregular wear
develops. Mazda recommends to
rotate every 8,000 km (5,000 miles) to
help increase tire life and distribute
wear more evenly.
1. Forward
Do not include (TEMPORARY USE
ONLY) spare tire in rotation.

Inspect the tires for uneven wear and
damage. Abnormal wear is usually
caused by one or a combination of the
following:
Incorrect tire pressure
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Improper wheel alignmentOut-of-balance wheelSevere braking
After rotation, inflate all tire pressures
to specification (page 9-7) and
inspect the lug nuts for tightness.
CAUTION
Rotate unidirectional tires and radial
tires that have an asymmetrical tread
pattern or studs only from front to rear,
not from side to side. Tire performance
will be weakened if rotated from side
to side.
▼ Replacing a Tire
WARNING
Always use tires that are in good
condition:
Driving with worn tires is dangerous.
Reduced braking , steering , and
traction could result in an accident.
If a tire wears evenly, a wear indicator
will appear as a solid band across the
tread.
Replace the tire when this happens.
1. New tread
2. Worn tread
3. Tread wear indicator

You should replace the tire before the
band crosses the entire tread.
NOTE
Tires degrade over time, even when
they are not being used on the road. It
is recommended that tires generally be
replaced when they are 6 years or
older. Heat caused by hot climates or
frequent high load
ing conditions can
accelerate the aging process. You
should replace the spare tire when you
replace the other road tires due to the
aging of the spare tire. The period in
which the tire was manufactured (both
week and year) is indicated by a 4-digit
number.
Refer to Tire Labeling on page 8-22.
▼ Safety Practices
The way you drive has a great deal to
do with your tire mileage and safety.
So cultivate good driving habits for
your own benefit.
Observe posted speed limits and
drive at speeds that are safe for the
existing weather conditions
Avoid fast starts, stops and turnsAvoid potholes and objects on the
road
Do not run over curbs or hit the tire
against the curb when parking
CAUTION
If you feel a sudden vibration or ride
disturbance while driving or you
suspect your tire or vehicle has been
damaged, immediately reduce your
speed. Drive with caution until you can
safely pull off the road. Stop and
inspect the tire for damage. If the tire
is under-inflated or damaged, deflate
it, remove the tire and rim and replace
it with your spare tire. If you cannot
detect a cause, have the vehicle towed
to the nearest vehicle or tire dealer to
have the vehicle inspected.
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WARNING
Never Exceed Axle Weight Rating
Limits:
Exceeding the Safety Certification
Label axle weight rating limits is
dangerous and could result in death or
serious injury as a result of substandard
vehicle handling, performance, engine,
transmission and/or structural
damage, serious damage to the
vehicle, or loss of control.
Always keep the vehicle within the axle
weight rating limits.

GCW
GCW (Gross Combination Weight) is
the weight of the loaded vehicle
(GVW).

GCWR (Gross Combination Weight
Rating) is the maximum allowable
weight of the vehicle - including all
cargo and passengers - that the vehicle
can handle without risking damage.
The GCW must never exceed the
GCWR.

WARNING
Never Exceed GVWR or GAWR
Specifications:
Exceeding the GVWR or the GAWR
specified on the
certification label is
dangerous. Exceeding any vehicle
rating limitation could result in a
serious accident, injury, or damage to
the vehicle.
Do not use replacement tires with
lower load carrying capacities than the
originals because they may lower the
vehicle's GVWR and GAWR
limitations. Replacement tires with a
higher limit than th e originals do not
increase the GVWR and GAWR
limitations.
Never exceed the GVWR or the GAWR
specified on the certification label.
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Without Cylinder Deactivation
ItemWeight
FWD AWD
16 inch wheel vehicle 18 inch wheel vehicle
GVWR (Gross Vehicle Weight
Rating) 1,900 kg (4,189 lbs) 1,921 kg (4,235 lbs) 1,971 kg (4,345 lbs)
GAWR (Gross Axle
Weigh t Rat ing) Front 1,020 kg (2,249 lbs) 1,021 kg (2,251 lbs) 1,044 kg (2,302 lbs)
Rear 883 kg (1,947 lbs) 903 kg (1,991 lbs) 930 kg (2,050 lbs)
Mexico
Item
Weight
GVW (Gross Vehicle Weight) 1,939 kg (4,275 lbs)
▼Air Conditioner
The type of refrigerant used is indicated on a label attached to the inside of the en-
gine compartment. Check the label before recharging the refrigerant.
Refer to Operating Tips on page 5-2.
Item
Specification
Refrigerant Type HFC134a (R-134a)
▼Light Bulbs
Exterior light/Interior light
All the light bulbs are the LED type.
The LED bulb cannot be replaced. We recommend an Authorized Mazda Dealer
when the replacement is necessary.
▼
Tires
NOTE
The tires have been optimally matched with the chassis of your vehicle.
When replacing tires, Mazda recommends that you replace tires of the same type
originally fitted to your vehicle. For details, contact an Authorized Mazda Dealer.
Check the tire pressure label for
tire size and inflation pressure.
Refer to Tire Pressure Label on page 9-2.Refer to Tire Inflation Pressure on page 6-28.
Specifications
Specifications
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Index
Key battery........................... 6-26
Tires.....................................6-30
Wheel.................................. 6-31
Wiper.................................. 6-20
Rocking the Vehicle................... 3-50
S
Safety Defects, Reporting
(Canada).................................. 8-13
Safety Defects, Reporting
(U.S.A.).................................... 8-12
Saving Fuel and Protection of the
Environment............................. 3-47
Scheduled Maintenance Canada.................................. 6-6
Mexico.................................. 6-8
U.S.A. and Puerto Rico........... 6-4
Seats Driver's seat........................... 2-4
Front passenger's seat........... 2-12
Front seat............................... 2-4
Head restraint...................... 2-15
Rear seat.............................. 2-13
Seat warmer......................... 2-17
Seat Belt System Automatic locking................ 2-22
Emergency locking................ 2-22
Extender.............................. 2-27
Pregnant women.................. 2-21
Seat belt precautions............ 2-20
Seat Belt Warning Beep............. 7-36
Security System Immobilizer system............... 3-43
Theft-deterrent system.......... 3-45
Shift Position Warning Beep....... 7-38
Smart Brake Support (SBS)....... 4-149 Collision warning................ 4-151
Stopping the Smart Brake Support
(SBS) system operation........4-151
Smart Brake Support [Rear Crossing]
(SBS-RC) .................................4-155
Collision warning................ 4-158
Stopping the Smart Brake Support
[Rear Crossing] (SBS-RC) system
operation........................... 4-159
Smart Brake Support [Rear] (SBS-
R) ........................................... 4-152
Collision warning................ 4-154
Stopping the Smart Brake Support
[Rear] (SBS-R) system
operation........................... 4-155
Spare Tire................................... 7-3
Spare Tire and Tool Storage.......... 7-3
Specifications Air conditioner....................... 9-7
Capacities.............................. 9-5
Dimensions............................ 9-5
Electrical system..................... 9-4
Engine................................... 9-4
Light bulbs............................. 9-7
Lubricant quality..................... 9-4
Tires.......................................9-7
Weights................................. 9-6
SRS Air Bags Driver and front passenger
occupant classification
system................................. 2-64
How the SRS air bags work.... 2-57
Limitations to SRS air bag...... 2-62
Monitoring........................... 2-68
SRS air bag deployment
criteria................................. 2-60
Supplemental restraint system
components......................... 2-55
Supplemental restraint system
(SRS) precautions................. 2-49
Starting the Engine...................... 4-5
Steering Wheel Heated steering wheel.......... 2-18
Horn.................................... 4-54
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