2023 MAZDA MAZDA Owners Manual

CAUTION
Heed the following precautions to
assure correct operation of each
system.
Do not adhere stickers (including
transparent stickers) to the surface of
the radiator grille and front emblem
in and around the front radar sensor,
and do not replace the radiator grille
and front emblem with any product
that is not a genuine product
designed for use with the front radar
sensor.
 The front radar sensor includes a
function for detecting soiling of the
radar sensor's front surface and
informing the driver, however,
depending on the conditions, it may
require time to detect or it may not
detect plastic shopping bags, ice or
snow. If this occurs, the system may
not operate correctly, therefore
always keep the front radar sensor
clean.
 Do not install a grille guard.
 If the front part of the vehicle has
been damaged in a vehicle accident,
the position of the front radar sensor
may have moved. Stop the system
immediately and always have the
vehicle inspected at an Authorized
Mazda Dealer.
 Do not use the front bumper to push
other vehicles or obstructions such
as when pulling out of a parking
space. Otherwise, the front radar
sensor could be hit and its position
deviated.
 Do not remove, disassemble, or
modify the front radar sensor.
 For repairs, replacement or paint
work around the front radar sensor,
consult an Authorized Mazda Dealer.
Do not modify the suspensions. If
the suspensions are modified, the
vehicle's posture could change and
the front radar sensor may not be
able to correctly detect a vehicle
ahead or an obstruction.
NOTE
When the vehicle is driven on roads
in which there is an elevated road on
one side, the front radar sensor
function may be restricted
temporarily.
Under the following conditions, the
front radar sensor may not be able to
detect vehicles ahead or obstructions
correctly and each system may not
operate normally.
The rear surface of a vehicle ahead
does not reflect radio waves
effectively, such as an unloaded
trailer or an automobile with a
loading platform covered by a soft
top, vehicles with a hard plastic
tailgate, and round-shaped
vehicles.
Vehicles ahead with low vehicle
height and thus less area for
reflecting radio waves.
Visibility is reduced due to a
vehicle ahead casting
off water,
snow, or sand from its tires and
onto your windshield.
The trunk/luggage compartment is
loaded with heavy objects or the
rear passenger seats are occupied.
Ice, snow, or soiling is on the front
surface of the front emblem.
During inclement weather such as
rain, snow, or sand storms.
When driving near facilities or
objects emitting strong radio
waves.
When Driving
i-ACTIVSENSE
4-216
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Under the following conditions, the
front radar sensor may not be able to
detect vehicles ahead or
obstructions.
The beginning and end of a curve.Roads with continuous curves.Narrow lane roads due to road
construction or lane closures.
The vehicle ahead enters the radar
sensor's blind spot.
The vehicle ahead is running
abnormally due to accident or
vehicle damage.
Roads with repeated up and down
slopes
Driving on poor roads or unpaved
roads.
The distance between your vehicle
and the vehicle ahead is extremely
short.
A vehicle suddenly comes close,
such as by cutting into your lane.
To prevent incorrect operation of the
system, use tires of the same
specified size, manufacturer, brand,
and tread pattern on all four wheels.
In addition, do not use tires with
significantly
different wear patterns
or tire pressures on the same vehicle
(Including the temporary spare tire).
If the battery power is weak, the
system may not operate correctly.
When driving on roads with little
traffic and few vehicles ahead or
obstructions for the front radar
sensor to detect, “Safety and Driver
Support Systems Temporarily
Disabled. Front Radar Obscured.
Drive Safely” may be temporarily
displayed, however, this does not
indicate a problem.
The radar sensors are regulated by
the relevant radio wave laws of the
country in which the vehicle is
driven. If the vehicle is driven
abroad, authorization from the
country in which the vehicle is driven
may be required.
When Driving
i-ACTIVSENSE
4-217
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Front Side Radar Sensor*
▼Front Side Radar Sensor
Your vehicle is equipped with front
side radar sensor. The following
systems also use the front side radar
sensor.
Front Cross Traffic Alert (FCTA)
The front side radar sensor function by
detecting the radio waves reflected off
a vehicle approaching from the front or
an obstruction sent from the radar
sensor.
1. Front side radar sensor

The front side radar sensors are
installed inside the front bumper, one
on each side.
Always keep the surface of the front
bumper near the front side radar
sensors clean so that they operate
normally. Also, do not apply items such
as stickers.
Refer to Exterior Care on page 6-47.
CAUTION
If the front bumper receives a severe
impact, the system may no longer
operate normally. Stop the system
immediately and have the vehicle
inspected at an Authorized Mazda
Dealer.
NOTE
The detection ability of the front side
radar sensor has limitations. In the
following cases, the detection ability
may lower and the system may not
operate normally.
The front bumper near the front
side radar sensor has become
deformed.
Snow, ice or mud adheres to the
front side radar sensor on the front
bumper.
Under bad weather conditions
such as rain, snow and fog.
Under the following conditions, the
front side radar sensor cannot detect
target objects or it may be difficult to
detect them.
Small motorcycles, bicycles,
pedestrians, animals, shopping
carts, and stationary objects on a
road or a road side.
Vehicle shapes which do not
reflect radar waves well such as
empty trailers with a low vehicle
height and sports cars.
Vehicles are shipped with the
direction of the front side radar
sensor adjusted for each vehicle to a
loaded vehicle condition so that the
front side radar sensor detect
approaching vehicles correctly. If the
direction of the front side radar
sensor has deviated for some reason,
have the vehicle inspected at an
Authorized Mazda Dealer.
For repairs or replacement of the
front side radar sensor, or bumper
repairs, paintwork, and replacement
near the radar sensors, consult an
Authorized Mazda Dealer.
When Driving
i-ACTIVSENSE
4-218*Some models.
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

The radar sensors are regulated by
the relevant radio wave laws of the
country in which the vehicle is
driven. If the vehicle is driven
abroad, authorization from the
country in which the vehicle is driven
may be required.Rear Side Radar Sensor*
▼Rear Side Radar Sensor
Your vehicle is equipped with rear side
radar sensor. The following systems
also use the rear side radar sensor.
Blind Spot Monitoring (BSM)Rear Cross Traffic Alert (RCTA)Smart Brake Support (SBS) reverse
drive detection
The rear side radar sensors emit radio
waves and detect the radio waves
reflected off a vehicle approaching
from the rear or an obstruction.
4–Door
1. Rear side radar sensor

5–Door
1. Rear side radar sensor

The rear side radar sensors are installed
inside the rear bumper, one on each
side.
When Driving
i-ACTIVSENSE
*Some models.4-219
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Always keep the surface of the rear
bumper near the rear side radar
sensors clean so that they operate
normally. Also, do not apply items such
as stickers.
Refer to Exterior Care on page 6-47.
CAUTION
If the rear bumper receives a severe
impact, the system may no longer
operate normally. Stop the system
immediately and have the vehicle
inspected at an Authorized Mazda
Dealer.
NOTE
The detection ability of the rear side
radar sensor has limitations. In the
following cases, the detection ability
may lower and the system may not
operate normally.
The rear bumper near the rear side
radar sensor has become
deformed.
Snow, ice or mud adheres to the
rear side radar sensor on the rear
bumper.
Under bad weather conditions
such as rain, snow and fog.
Under the following conditions, the
rear side radar sensor cannot detect
target objects or it may be difficult to
detect them.
Small motorcycles, bicycles,
pedestrians, animals, shopping
carts, and stationary objects on a
road or a road side.
Vehicle shapes which do notreflect radar waves well such as
empty trailers with a low vehicle
height and sports cars.
Vehicles are shipped with the
direction of the rear side radar
sensor adjusted for each vehicle to a
loaded vehicle condition so that the
rear side radar sensor detect
approaching vehicles correctly. If the
direction of the rear side radar
sensor has deviated for some reason,
have the vehicle inspected at an
Authorized Mazda Dealer.
For repairs or replacement of the rear
side radar sensor, or bumper repairs,
paintwork, and replacement near the
radar sensors, consult an Authorized
Mazda Dealer.
The radar sensors are regulated by
the relevant radio wave laws of the
country in which the vehicle is
driven. If the vehicle is driven
abroad, authorization from the
country in which the vehicle is driven
may be required.
When Driving
i-ACTIVSENSE
4-220
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Rear/Rear Corner
Ultrasonic Sensor
*
▼Rear/Rear Corner Ultrasonic
Sensor
The ultrasonic sensors function by
emitting ultrasonic waves which are
reflected

off obstructions at the rear
and the returning ultrasonic waves are
picked up by the ultrasonic sensors.

The ultrasonic sensors are mounted in
the rear bumper.
Front Camera/Side
Cameras/Rear Camera
*
▼ Front Camera/Side Cameras/Rear
Camera
Your vehicle is equipped with a front
camera, side cameras, and a rear
camera. The 360° View Monitor uses
each camera.
Refer to 360° View Monitor on page
4-177.
The front camera, side cameras, and
rear camera shoot images of the area
surrounding the vehicle.
Each camera is installed to the
following positions.
4–Door
1. Side cameras
2. Front camera
3. Rear camera
When Driving
i-ACTIVSENSE
*Some models.4-221
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10

5–Door
1. Side cameras
2. Front camera
3. Rear camera
Driver MonitoringCamera
*
▼Driver Monitoring Camera
The driver monitoring camera detects
changes in the driver's facial features
and estimates the amount of
accumulated fatigue and sleepiness of
the driver.
1. Driver monitoring camera
NOTE
Driver Monitoring (DM) and the
earlier collision warning may not
operate normally under the following
conditions.
The driver monitoring camera is
covered with something.
You are driving the vehicle while
leaning on the steering wheel.
You are wearing glasses or
sunglasses.
A cap or hat you are wearing
partially blocks the driver
monitoring camera's view of your
eyes, you have long bangs partially
covering your eyes, or a part of
your face is invisible due to a face
mask.
The lighting conditions change
significantly (such as backlight,
light from the side, or direct light
from the setting sun, and the
headlights of on-coming vehicles).
When Driving
i-ACTIVSENSE
4-222*Some models.
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10

You are driving the vehicle with
your head excessively tilted to one
side or the other.
You are moving around extensively.Your face or your eyes frequently
turn in direction other than straight
ahead (direction of travel).
Your line of sight moves or directly
after it has moved.
There is a large difference between
your line of sight and the direction
your face is pointed.
You are driving the vehicle with
your head largely tilted to one side.
Free/open source software
information
This product includes free/open
sources. Information about the
licensing and source code is
available at the following URL.
http://
www.embedded-carmultimedia.jp
/RTOS/License/oss/DMS_0201/
When Driving
i-ACTIVSENSE
4-223
Mazda3_8LC2-EA-22G_Edition1_new2022-5-20 11:26:10