2020 MAZDA MODEL 3 HATCHBACK Owners Manual (in English)

Event Data Recorder(U.S.A. and Canada)
▼ Event Data Recorder
This vehicle is equi
pped with an event
data recorder (EDR). The main purpose of
an EDR is to record, i n certain crash or
near crash-like situations, such as an air
bag deployment or hitting a road obstacle,
data that will assist in understanding how
a vehicle’s systems performed. The EDR
is designed to record data related to
vehicle dynamics and safety systems for a
short period of time, typically 30 seconds
or less. The EDR i n this vehicle is
designed to record such data as:
How various systems in your vehicle
were operating;
Whether or not the driver and passenger
safety belts were buckled/fastened;
How far (if at all) the driver was
depressing the accelerator and/or brake
pedal; and,
How fast the vehicle was traveling.
These data can help provide a better
understanding of the circumstances in
which crashes and injuries occur.
NOTE:
EDR data are recorded by your vehicle
only if a non-triv ial crash or near
crash-like situation occurs; no data are
recorded by the EDR under normal driving
conditions and no personal data (e.g.,
name, gender, age, and crash location) are
recorded. However, other parties, such as
law enforcement, cou ld combine the EDR
data with the type of personally
identifying data routin ely acquired during
a crash investigation.
To read data recorded by an EDR, special
equipment is required, and access to the
vehicle or the EDR is needed. In addition
to the vehicle manufacturer, other parties,
such as law enforcem ent, that have the
special equipment, can read the
information if they have access to the
vehicle or the EDR.

Mazda will not disclose any of the data
recorded in an EDR to a third party unless:
A written agreement from the vehicle
owner or the lessee is obtained
Officially requested by the police or
other law enforcement authorities
Used as a defense for Mazda in a
lawsuit, claim, or arbitration
Ordered by a judge or court
However, if necessary Mazda will:
Use the data for research on Mazda
vehicle performance, including safety.
Disclose the data or the summarized
data to a third party for research
purposes without disclosing vehicle or
owner identificat ion information.
Customer Information and Reporting Safety Defects
Event Data Recorder
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Recording of Vehicle Data
▼Recording of Vehicle Data
This vehicle is equipped with a computer
which records the fo
llowing main vehicle
data related to vehicle controls, operation,
and other driving conditions.

Recorded data
Vehicle conditions such as engine speed
and vehicle speed
Driving operation conditions such as
accelerator and brake pedals, and
information related to the environmental
circumstances while the vehicle is
driven
Malfunction diagnosis information from
each on-vehicle computer
Information related to controls of other
on-vehicle computers
NOTE
The recorded data may vary depending on
the vehicle grade and optional equipment.
Voice and images are not recorded.

Data handling
Mazda and its subcontracting parties may
obtain and use the recorded data for
vehicle malfunction diagnosis, research
and development, and quality
improvement.
Mazda will not disclose or provide any of
the obtained d ata to a third party unless:
An agreement from the vehicle owner
(agreements from lessor and lessee for
leased vehicle) is obtained
Officially requested by the police or
other law enforcem ent authorities
For statistical processing by a research
institution after processing the data so
that identification of the owner or the
vehicle is impossible
Customer Information and Reporting Safety Defects
Recording of Vehicle Data
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Uniform Tire Quality
Grading System (UTQGS)
▼ Uniform Tire Quality Grading
System (UTQGS)
This information relates to the tire grading
system developed by the U.S. National
Highway Traffic Safety
Administration for
grading tires by tread wear, traction, and
temperature performance.
▼ Tr e a d We a r
The tread wear grade is a comparative
rating based on the we
ar 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-a-half times as well on the
government course as a tire graded 100.

The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
from the norm because of variations in
driving habits, service practices and
differences in road characteristics and
climate.
▼ Traction-AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B, and C. These 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.
WA R N I N G
The traction grade assigned to this tire is
based on braking (straight ahead) traction
tests and does not include acceleration
cornering (turning), hydroplaning, or peak
traction characteristics.
▼Temperature-A, B, C
The temperature grades A (the highest), B,
and C, represent 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
temperatures can lead to sudden tire
failure.

Grade C corresponds to a level of
performance which all passenger vehicle
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades
B and A represent higher levels of
performance on the la
boratory test wheel
than the minimum required by law.
Customer Information and Reporting Safety Defects
Uniform Tire Quality G rading System (UTQGS)
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WA R N I N G
Keep your vehicle's tires properly inflated
and not overloaded:
Driving with improperly inflated or
overloaded tires is dangerous. Excessive
speed, underinflation, or excessive loading,
either separately or in combination, can
cause heat buildup and possible tire failure.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded.

These grades will be added to the
sidewalls of passenger vehicle tires over
the next several years according to a
schedule established by the NHTSA and
the tire manufacturers.

The grade of tires available as standard or
optional equipment on Mazda vehicles
may vary with respect to grade.

ALL PASSENGER VEHICLE TIRES
MUST CONFORM TO THESE GRADES
AND TO ALL OTHER FEDERAL
TIRE-SAFETY REQUIREMENTS.
▼ UNIFORM TIRE QUALITY
GRADING
Quality grades can be found where
applicable on the tir
e sidewall between
tread shoulder and maximum section
width.
For example:
TREADWEAR 200 TRACTION AA
TEMPERATURE A
UTQGS MARK (example)
Customer Information and Reporting Safety Defects
Uniform Tire Quality G rading System (UTQGS)
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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 tir
e 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 w idth 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.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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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 RatingQ9 9 m ph
R1 06 m ph
S1 12 m ph
T1 18 m ph
U1 24 m ph
H1 30 m ph
V1 49 m ph
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 manufacture rs always use the letters
ZR.
M+S or M/S: Mud and Snow
AT: All Terrain.
AS: All Season. T he “M+S” or “M/S”
indicates that the tire has some functional
use in mud and snow.
U.S. DOT Tire Iden tification 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 e ver be put in the tire
under normal driving conditions.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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Tread Wear, Traction and Temperature
Grades
Tr e a d w e a 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.
The grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditi ons 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 a s 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

Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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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).
11 5
“115” is the nominal w idth of the tire in
millimeters. This three-digit number gives
the width in millimet ers of the tire from
sidewall edge to sidewall edge. In general,
the larger the number, the wider the tire.
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 M8 1 m ph
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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