2021 MAZDA MODEL 3 HATCHBACK tires

Slippery roads such as ice or
snow-bound roads (Tires could spin
causing you to lose vehicle control,
or the stop hold control may not
operate.)
 Long, descending slopes (to
maintain distance between vehicles,
the system automatically and
continuously applies the brakes
which could result in the loss of
brake power.)
 Slopes with a steep gradient (The
vehicle ahead may not be detected
correctly.)
 Two-wheeled vehicles such as
motorcycles or bicycles are ahead.
For safety purposes, switch the MRCC
system o ff when it is not being used.
Leaving the MRCC system turned on
when it is not in use is dangerous as it
could operate unexpectedly, resulting
in an accident.
CAUTION
 Turn the system
off when the vehicle
is running on a chassis roller.
 If your vehicle is towed or you are
towing something , switch the MRCC
system o ff to prevent an unexpected
operation.
NOTE
The MRCC system does not detect
the following as physical objects.
Vehicles approaching in the
opposite direction
Pe d e s t r i a n sStationary objects (stopped
vehicles, obstructions)
If a vehicle ahead is traveling at an
extremely low speed, the system
may not detect it correctly.
If there is a structure on the road or
an object (such as a monorail) at a
low height o ff the ground in front of
the vehicle, the system may operate.
Therefore, do not use the MRCC.
Do not use the MRCC system under
conditions in which close proximity
warnings are frequently activated.
During headway control travel, the
system accelerates and decelerates
your vehicle in conjunction with the
speed of the vehicle ahead.
However, if it is necessary to
accelerate for a lane change or if the
vehicle ahead brakes suddenly
causing you to close in on the vehicle
rapidly, accelerate using the
accelerator pedal or decelerate using
the brake pedal depending on the
conditions.
While the MRCC system is in use, it
does not cancel even if the shift lever
is operated and any intended engine
braking will not occur. If deceleration
is required, lower the vehicle speed
setting or depress the brake pedal.
While braking by the MRCC control
is operating, you might hear an
operation sound, however, this does
not indicate a problem.
The brake lights turn on while
braking by the MRCC control is
operating , however, they may not
turn on while the vehicle is on a
down slope at the set vehicle speed
or traveling at a constant speed and
following a vehicle ahead.
Stop the headway control function to
switch the system to the cruise
control function.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
When Driving
i-ACTIVSENSE
4-121
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Also refer to the following before using
the MRCC with Stop & Go function.
AUTOHOLD (page 4-71)Forward Sensing Camera (FSC) (page
4-203)
Front radar sensor (page 4-207)
WARNING
Do not rely completely on the MRCC
with Stop & Go function:
The MRCC with Stop & Go function
system has detection limitations
depending on the type of vehicle
ahead and its conditions, the weather
conditions, and the road conditions.
Additionally, the system may be unable
to decelerate sufficiently to avoid
hitting the vehicle ahead if the vehicle
ahead applies the brakes suddenly or
another vehicle cuts into the driving
lane in front of you, which could result
in an accident.
Always drive carefully and verify the
surrounding conditions and depress
the brake pedal or accelerator pedal
while keeping a safe distance from
vehicles ahead or on-coming vehicles.
Do not use the MRCC with Stop & Go
function system in the following
locations. Using the MRCC with Stop
& Go function system at the following
locations may result in an unexpected
accident:
 General roads other than highways
(Driving under these conditions
using the MRCC with Stop & Go
function system is not possible.)
Roads with sharp curves and where
vehicle tra ffic is heavy with
insu fficient space between vehicles,
or roads where frequent and
repetitive acceleration and
deceleration occur (Driving under
these conditions using the MRCC
with Stop & Go function is not
possible.)
 When entering and exiting
interchanges, service areas, and
parking areas of highways (If you exit
a highway while headway control is
in use, the vehicle ahead will no
longer be tracked and your vehicle
may accelerate to the set speed.)
 Slippery roads such as ice or
snow-bound roads (Tires could spin
causing you to lose vehicle control,
or the stop hold control may not
operate.)
 Long , descending slopes (to
maintain distance between vehicles,
the system automatically and
continuously applies the brakes
which could result in the loss of
brake power.)
 Slopes with a steep gradient (The
vehicle ahead may not be detected
correctly, your vehicle may slide
while stopped by the stop hold
control, and it may accelerate
suddenly after it starts moving.)
 Two-wheeled vehicles such as
motorcycles or bicycles are ahead.
For safety purposes, switch the MRCC
with Stop & Go function system off
when it is not being used.
Leaving the MRCC with Stop & Go
function system turned on when it is
not in use is dangerous as it could
operate unexpectedly, resulting in an
accident.
When Driving
i-ACTIVSENSE
4-129
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

The TJA may not be able to detect a
vehicle ahead depending on the type
of vehicle ahead and its conditions,
the weather conditions, and the road
conditions. Additionally, the system
might be unable to decelerate
su fficiently if a vehicle ahead applies
the brakes suddenly, another vehicle
cuts into the driving lane, or the di fference in vehicle speed between
your vehicle and the vehicle ahead is
larger, which could result in an
accident. Check the surrounding
conditions and always drive carefully
while keeping a safe distance from
vehicles ahead and on-coming
vehicles.

For the purposes of safety, switch the
TJ A o ff when it is not being used.
Leaving the TJA turned on when it is
not in use is dangerous as it could
operate unexpectedly, resulting in an
accident.

Do not use the TJA under the
following conditions. Otherwise, it
may result in an accident.
 General roads other than
expressways or highways (Driving
under these conditions using the TJA
is not possible.)
 Roads with sharp curves and where
vehicle traffi c is heavy with
insuffi cient space between vehicles,
or roads where frequent and
repetitive acceleration and
deceleration occur (Driving under
these conditions using the TJA is not
possible). When entering and exiting
interchanges, service areas, and
parking areas of expressways (If you
exit an expressway while headway
control is in use, the vehicle ahead
will no longer be tracked and your
vehicle may accelerate to the set
speed).
 Slippery roads such as icy or
snow-covered roads (Tires could spin
causing you to lose vehicle control,
or the stop hold control may not
operate.)
 Long, descending slopes (to
maintain distance between vehicles,
the system automatically and
continuously applies the brakes
which could result in the loss of
brake power.)
 Two-wheeled vehicles such as
motorcycles or bicycles are ahead.
 (Automatic transmission vehicle)
Slopes with a steep gradient (The
vehicle ahead may not be detected
correctly, your vehicle may slip while
stopped by the stop hold control, or
it may accelerate suddenly after it
starts moving.)
 Driving under bad weather
conditions (rain, fog , and snow).
 The vehicle is driven on slippery
roads such as icy or snow -covered
roads and unpaved roads (Tires
could spin causing you to lose
vehicle control, or the stop hold
control may not operate.)
 Tires of a di fferent specified size are
used, such as a temporary spare tire.
 Tires with insu fficient tread are used.
 The tire pressures are not adjusted to
the
speci fied pressure.
 The vehicle is being used to tow a
camper or boat trailer.
 Tire chains are used.
When Driving
i-ACTIVSENSE
4-140
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

The functions of the LAS have
limitations. Always stay on course
using the steering wheel and drive
with care.
 Do not use the LAS under the
following circumstances, otherwise it
may result in an accident.
 The vehicle is driven on slippery
roads such as icy or snow-covered
roads, and unpaved roads.
 Tires of a
different
speci fied size
are used, such as a temporary
spare tire.
 Tires with
insufficient tread are
used.
 The tire pressures are not adjusted
to the
specified pressure.
 The vehicle is being used to tow a
camper or boat trailer.
 Tire chains are used.
 The vehicle is driven on roads with
lane lines other than white (yellow)
lines, such as an expressway.
CAUTION
Heed the following cautions so that
the LAS can operate normally.
Do not modify the vehicle's
suspensions.
 Always use tires of the speci fied type
and size for the front and rear
wheels. Consult an Authorized
Mazda Dealer for tire replacement.
NOTE
The system may not operate normally
under the following conditions.
The white (yellow) lane lines are less
visible because of dirt or paint
fl aking.
White (yellow) lane lines are less
visible because of bad weather (rain,
fog , or snow).
The vehicle is driven on a temporary
lane or section with a closed lane
resulting from construction where
there might be multiple white
(yellow) lane lines, or they are
interrupted.
The camera picks up an obscure line,
such as a temporary line being used
for construction, or because of
shade, unmelted snow, or grooves
filled with water.
The surrounding brightness suddenly
changes such as when entering or
exiting a tunnel.
Back-light is re flected off the road
surface.
The road surface is wet and shiny
after rain, or there are puddles on
the road.
The width of a lane is excessively
narrow.
The vehicle is driven on roads with
tight curves.
Heavy luggage is loaded in the
trunk/luggage compartment or on
the rear seat causing the vehicle to
tilt.
The vehicle is driven through a fork in
the road or a junction.
The shade of a guardrail parallel to a
white (yellow) lane line is cast on the
road.
The illumination of the headlights is
weakened because of dirt or the
optical axis is deviated at night.
The road is excessively uneven.The vehicle is shaken after hitting a
road bump.
A vehicle in front of your vehicle is
running near a white (yellow) lane
line making it less visible.
The windshield is dirty or foggy.Strong light is directed from the front
of the vehicle (such as sunlight, or
headlights (high-beam) of
on-coming vehicles).
When Driving
i-ACTIVSENSE
4-155
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Do not apply a sticker to a rear
ultrasonic sensor and rear camera.
Otherwise, the rear ultrasonic
sensor and rear camera may not be
able to detect vehicles or
obstructions which could result in
an accident.
 Do not disassemble a rear
ultrasonic sensor and rear camera.
 If cracks or damage caused by
flying gravel or debris is visible
around a rear ultrasonic sensor and
rear camera, stop using the SBS -R
system immediately and have your
vehicle inspected by an Authorized
Mazda Dealer. If the vehicle
continues to be driven with cracks
or scratch marks left around an
ultrasonic sensor, the system may
operate unnecessarily and cause
an unexpected accident.
Refer to Stopping the Smart Brake
Support [Rear] (SBS -R) System
Operation on page 4-163.
 Consult an Authorized Mazda
Dealer for rear bumper removal.
Do not modify the suspension:
If the vehicle height or inclination is
changed, the SBS -R system may not
operate correctly because it cannot
detect obstructions correctly.Do not apply a strong force to a rear
ultrasonic sensor and rear camera:
When washing the vehicle, do not
spray highly pressurized water against a
rear ultrasonic sensor and rear camera,
or rub it strongly. In addition, do not
hit the rear bumper forcefully when
loading and unloading cargo.
Otherwise, the sensors may not detect
obstructions correctly which could
cause the SBS -R system to not operate
normally, or it could operate
unnecessarily.
CAUTION
 When driving o ff-road in areas where
there is grass or foliage, it is
recommended that the SBS-R system
be turned o ff.
 Always use tires of the speci fied size
and the same manufacturer, brand,
and tread pattern on all 4 wheels. In
addition, do not use tires with signi ficantly di fferent wear patterns
on the same vehicle. Otherwise, the SBS -R system may not operate
normally.
 If ice or snow is stuck on the rear
ultrasonic sensor and rear camera
they may not be able to detect
obstructions correctly depending on
the conditions. In such cases, the
system may not be able to perform
controls correctly. Always drive
carefully and pay attention to the
rear of the vehicle.
When Driving
i-ACTIVSENSE
4-161
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

WARNING
Always confirm the safety of the area
around the vehicle with the mirrors
and directly with your eyes when
driving:
The 360°View Monitor is an auxiliary
device which assi sts the driver in
checking the safety of the area around
the vehicle.
The shooting range of the cameras and
detection range of the sensors are
limited. For example, the areas in black
at the front and rear of the vehicle
image and the seams where each of
the camera images merge are blind
spots where an obstruction may not be
visible. In addition, the extended
vehicle width lines and projected
vehicle path lines are only to be used
as references, and the images on the
screen may di ffer from the actual
conditions.
CAUTION
 Do not use the 360°View Monitor
under any of the following
conditions.
 Icy or snow-covered roads.
 Tire chains or a temporary spare
tire is installed.
 The front or rear doors are not fully
closed.
 The vehicle is on a road incline.
 The door mirrors are retracted.
 Do not hit the front/rear camera,
front/rear bumper, and door mirrors
forcefully. The camera position or
installation angle may shift.
 The cameras are waterproof. Do not
disassemble, modify, or remove a
camera.
The camera cover is made of hard
plastic, therefore do not apply oil
fi lm remover, organic solvents, wax,
or coating agents. If any such agent
gets on the camera cover, wipe it o ff
using a soft cloth immediately.
 Do not rub the camera lens
forcefully, or clean it with an abrasive
or hard brush. Otherwise, it could
scratch the camera lens and
negatively a ffect the images.
 Consult an Authorized Mazda Dealer
for repair, painting, or replacement
of the front/rear camera, front/rear
bumper and door mirrors.
 Heed the following cautions to
assure that the 360°View Monitor
operates normally.
 Do not modify the vehicle
suspensions or lower/raise the
vehicle body, or both.
 Always use tires of the speci fied
type and size for the front and rear
wheels. Consult an Authorized
Mazda Dealer for tire replacement.
 When the display is cold, images
may leave trails or the screen might
be darker than usual, making it
diffi cult to check the vehicle
surroundings. Always con firm the
safety at the front and around the
vehicle visually when driving.
When Driving
i-ACTIVSENSE
4-170
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Do not remove the Forward
Sensing Camera (FSC) cover.
 Do not place objects on the
dashboard which re flect light.
 Always keep the windshield glass
around the camera clean by
removing dirt or fogging. Use the
windshield defroster to remove
fogging on the windshield.
 Consult an Authorized Mazda
Dealer regarding cleaning the
interior side of the windshield
around the Forward Sensing
Camera (FSC).
 Consult an Authorized Mazda
Dealer before performing repairs
around the Forward Sensing
Camera (FSC).
 The Forward Sensing Camera (FSC)
is installed to the windshield.
Consult an Authorized Mazda
Dealer for windshield repair and
replacement.
 When cleaning the windshield, do
not allow glass cleaners or similar
cleaning fluids to get on the
Forward Sensing Camera (FSC)
lens. In addition, do not touch the
Forward Sensing Camera (FSC)
lens.
 When performing repairs around
the rearview mirror, consult an
Authorized Mazda Dealer.
 Consult an Authorized Mazda
Dealer regarding cleaning of the
camera lens.
 Do not hit or apply strong force to
the Forward Sensing Camera (FSC)
or the area around it. If the
Forward Sensing Camera (FSC) is
severely hit or if there are cracks or
damage caused by flying gravel or
debris in the area around it, stop
using the following systems and
consult an Authorized Mazda
Dealer. High Beam Control System
(HBC)
 Lane Departure Warning System
(LDWS)
 Tra ffic Sign Recognition System
(TSR)
 Distance & Speed Alert (DSA)
 Driver Attention Alert (DAA)
 Mazda Radar Cruise Control
(MRCC)
 Mazda Radar Cruise Control
with Stop & Go function (MRCC
with Stop & Go function)
 Lane-keep Assist System (LAS)
 Tra ffic Jam Assist (TJA)
 Smart Brake Support (SBS)
 The direction in which the Forward
Sensing Camera (FSC) is pointed
has been fi nely adjusted. Do not
change the installation position of
the Forward Sensing Camera (FSC)
or remove it. Otherwise, it could
result in damage or malfunction.
 Always use tires for all wheels that
are of the
specified size, and the
same manufacturer, brand, and tread
pattern. In addition, do not use tires
with significantly
di fferent wear
patterns on the same vehicle as the
system may not operate normally.
 The Forward Sensing Camera (FSC)
includes a function for detecting a
soiled windshield and informing the
driver, however, depending on the
conditions, it may not detect plastic
shopping bags, ice or snow on the
windshield. In such cases, the system
cannot accurately determine a
vehicle ahead and may not be able
to operate normally. Always drive
carefully and pay attention to the
road ahead.
When Driving
i-ACTIVSENSE
4-204
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

NOTE
In the following cases, the Forward
Sensing Camera (FSC) cannot detect
target objects correctly, and each
system may be unable to operate
normally.
The height of the vehicle ahead is
low.
You drive your vehicle at the same
speed as the vehicle ahead.
Headlights are not turned on
during the night or when going
through a tunnel.
In the following cases, the Forward
Sensing Camera (FSC) may not be
able to detect target objects
correctly.
Under bad weather condition,
such as rain, fog and snow.
The window washer is being used
or the windshield wipers are not
used when it's raining.
Ice, fog , snow, frost, rainfall, dirt,
or foreign matter such as a plastic
bag is stuck on the windshield.
Trucks with low loading platforms
and vehicles with an extremely low
or high profile.
When driving next to walls with no
patterning (including fences and
longitudinally striped walls).
The taillights of the vehicle ahead
are turned o ff.
A vehicle is outside the
illumination range of the
headlights.
The vehicle is making a sharp turn,
or ascending or descending a steep
slope.
Entering or exiting a tunnel.Heavy luggage is loaded causing
the vehicle to tilt.
Strong light is shone at the front of
the vehicle (back light or
high-beam light from on-coming
vehicles).
There are many light emitters on
the vehicle ahead.
When the vehicle ahead is not
equipped with taillights or the
taillights are turned o ff at
nighttime.
Elongated luggage or cargo is
loaded onto installed roof rails and
covers the Forward Sensing
Camera (FSC).
Exhaust gas from the vehicle in
front, sand, snow, and water vapor
rising from manholes and grating,
and water splashed into the air.
When towing a malfunctioning
vehicle.
The vehicle is driven with tires
having signi ficantly different wear.
The vehicle is driven on down
slopes or bumpy roads.
There are water puddles on the
road.
The surroundings are dark such as
during the night, early evening , or
early morning , or in a tunnel or
indoor parking lot.
The illumination brightness of the
headlights is reduced or the
headlight illumination is weakened
due to dirt or a deviated optical
axis.
The target object enters the blind
spot of the Forward Sensing
Camera (FSC).
A person or object bursts onto the
road from the shoulder or cuts
right in front of you.
You change lanes and approach a
vehicle ahead.
When driving extremely close to
the target object.
When Driving
i-ACTIVSENSE
4-205
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34