warning MAZDA MODEL 3 HATCHBACK 2021 Owners Manual

A vehicle approaching from the
rear left and right side of your
vehicle makes a right or left turn
directly in front of your vehicle.
A vehicle overtakes your vehicle
while it is stopped.
Your vehicle is in an area where
strong radio waves or electrical
noise may occur such as near a
television tower or power plant.
In the following cases, the
i-ACTIVSENSE warning indication/
warning light turns on and operation
of the system is stopped. If the
i-ACTIVSENSE warning indication/
warning light remains illuminated,
have the vehicle inspected at an
Authorized Mazda Dealer as soon as
possible.
Some problem with the system
including the Blind Spot
Monitoring (BSM) warning
indicator lights has occurred.
A large deviation in the installation
position of a rear side radar sensor
on the vehicle has occurred.
There is a large accumulation of
snow or ice on the rear bumper
near a rear side radar sensor.
Driving on snow-covered roads for
long periods.
The temperature near the radar
sensors becomes extremely hot
due to driving for long periods on
slopes during the summer.
The battery voltage has decreased.Under the following conditions, the
rear side radar sensor cannot detect
approaching vehicles or it might bedi fficult to detect them, and the
system may not operate normally.
The vehicle speed when reversing
is about 15 km/h (9 mph) or
faster.
The rear side radar sensor
detection area is obstructed by a
nearby wall or parked vehicle.
(Reverse the vehicle to a position
where the radar sensor detection
area is no longer obstructed.)
1. Your vehicle
A vehicle is approaching directly
from the rear of your vehicle.
1. Your vehicle
The vehicle is parked at an angle.
1. Your vehicle
Directly after the RCTA system
becomes operable using the
personalization feature.
Radio wave interference from a
radar sensor equipped on a nearby
parked vehicle.
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In the following cases, it may be
difficult to view the illumination/
fl ashing of the Blind Spot Monitoring
(BSM) warning indicator lights
equipped on the door mirrors.
Snow or ice adheres to the door
mirrors.
The front door glass is fogged or
covered in snow, frost or dirt.
Tu r n o ff the RCTA system while
pulling a trailer or while an accessory
such as a bicycle carrier is installed to
the rear of the vehicle. Otherwise,
the radio waves emitted by the radar
will be blocked causing the system to
not operate normally.
The rear side radar sensor of the
RCTA may be regulated under the
radio wave related laws of the
country where the vehicle is driven. If
this system is used abroad, it may be
necessary to turn o ff the system.
Refer to Rear Side Radar Sensor on
page 4-211.
▼ Canceling Operation of Rear Cross
Tra
ffic Alert (RCTA)
The RCTA can be set to inoperable.
(If only the RCTA is turned
off)
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(If the RCTA is turned o ff by
operating the i-ACTIVSENSE OFF
switch)
Refer to i-ACTIVSENSE OFF Switch
on page 4-89.
NOTE
If the ignition is switched OFF while
you have canceled the system using the
i-ACTIVSENSE OFF switch, the system
is automatically enabled the next time
the ignition is switched ON. However,
if the system is canceled using the
personalization features, the system is
not automatically enabled.
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Mazda Radar Cruise
Control (MRCC) (Manual
Tra n s m i s s i o n )
*
▼Mazda Radar Cruise Control
(MRCC)
The MRCC system is designed to
maintain headway control*1 with a
vehicle ahead according to your
vehicle's speed using a front radar
sensor to detect the distance to the
vehicle ahead and a preset vehicle
speed without you having to use the
accelerator or brake pedals.
*1 Headway Control: Control of the distance between your vehicle and
the vehicle ahead detected by the
MRCC system.
Additionally, if your vehicle starts
closing in on the vehicle ahead such as
if the vehicle ahead brakes suddenly, a
warning sound and a warning
indication in the display are activated
simultaneously to alert you to maintain
a su fficient distance between the
vehicles.
Also refer to the fo llowing before using
the MRCC.
Front radar sensor (page 4-207)
WARNING
Do not rely completely on the MRCC :
The MRCC 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
su fficiently to avoid hitting the vehicle
ahead if the vehicle ahead applies the
brakes suddenly or another vehicle
cuts into the driving lane, 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 system in the
following locations. Using the MRCC
system at the following locations may
result in an unexpected accident:
 General roads other than highways
(Driving under these conditions
using the MRCC 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 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.)
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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.
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▼Mazda Radar Cruise Control
(MRCC) Display Indication
The MRCC setting status and operation
conditions are indicated on the
multi-information display and the
active driving display.
Multi-information display (Basic
display)
1. Vehicle ahead display
2. MRCC set vehicle speed

Multi-information display
(i-ACTIVSENSE display)
1. Vehicle ahead display
2. MRCC set vehicle speed

Active driving display
1. Vehicle ahead display
2. MRCC set vehicle speed

If there is a problem with the MRCC
system, a message is displayed on the
multi-information display. Check the
center display to verify the problem
and then have your vehicle inspected
by an Authorized Mazda Dealer.
Refer to If a Warning Light Turns On or
Flashes on page 7-27.
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▼Close Proximity Warning
If your vehicle rapidly closes in on the
vehicle ahead because the vehicle
ahead applies the brakes suddenly
while you are traveling in headway
control, the warning sound activates
and the brake warning is indicated in
the display. Always verify the safety of
the surrounding area and depress the
brake pedal while keeping a safe
distance from the vehicle ahead.
Additionally, keep a safe distance from
the vehicles behind you.
1. “Depress Brake Pedal” message is
displayed
NOTE
In the following cases, the warnings
and brakes may not operate even if
your vehicle starts closing in on the
vehicle ahead.
You are driving your vehicle at the
same speed as the vehicle ahead.
Directly after the MRCC system has
been set.
Directly after the accelerator pedal is
released.
Another vehicle cuts into the driving
lane in front of you.
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Changing the Set Vehicle Speed
(To accelerate/decelerate using the
RES switch)
When the RES switch is pressed up
(SET+), the vehicle accelerates and
when the RES switch is pressed down
(SET-), it decelerates.
Press and release immediately: 1
km/h (1 mph)
Press and hold: 10 km/h (5 mph)
(To increase speed using accelerator
pedal)
Depress the accelerator pedal and
press the RES switch up (SET+) or
down (SET -) at the desired speed. If
the switch is not operated, the system
returns to the set speed after you
release your foot from the accelerator
pedal.
NOTE
The warnings and brake control do
not operate while the accelerator
pedal is depressed.
Canceling the system
When the following operations are
performed, the MRCC system is
canceled, and the MRCC set indication
(green) switches to the MRCC standby
indication (white) at the same time.
The CANCEL switch is pressed.The brake pedal is depressed.The shift lever is in the reverse (R)
position.

Under the following conditions, the
MRCC cancel indication is displayed in
the multi-information display and a
single beep sound is heard.
The DSC has operated.
The Smart Brake Support (SBS) has
operated.
When traveling on a downslope for a
long period of time.
There is a problem with the system.The vehicle speed decreases to less
than 25 km (16 mph).
The shift lever is shifted to neutral
(N) for a certain period of time.
The clutch is depressed for a certain
period of time.
The engine stalls.The front radar sensor cannot detect
target objects (during rain, fog , snow
or other inclement weather
conditions, or when the radiator
grille is dirty).
The parking brake is applied.Any of the doors is opened.The driver's seat belt is unfastened.The operation frequency of the
braking by the MRCC control is high.
Resuming control
If the MRCC system is canceled, you
can resume control at the previously
set speed by pressing the RES switch
and after all of the operation
conditions have been met.
NOTE
If the set speed is not indicated in the
display, the control does not resume
even if the RES switch is pressed.
Tu r n i n g off the system
When the MRCC switch is pressed
while the MRCC is operating, the
MRCC turns off
.
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▼Shift-up/Shift-down Request
Display
The shift-up or shift-down request
display might be displayed while the
MRCC is operating. When this occurs,
shift gears because the gear position is
not appropriate.
Request Indication on display
Shift up Shift Up to a Higher Gear
Shift down Shift Down to a Lower Gear
NOTE
If the gears are not shifted up even
though the shift-up request
indication is displayed, load will be
applied to the engine and the MRCC
might be automatically canceled or
engine damage could occur.
If the gears are not shifted down
even though the shift-down request
indication is displayed, the MRCC
might be automatically canceled or
engine stalling could occur.
Mazda Radar Cruise
Control with Stop & Go function (MRCC with
Stop & Go function) (Automatic
Transmission)
*
▼ Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)
The MRCC with Stop & Go function
system is designed to maintain
headway control
*1 with a vehicle
ahead according to your vehicle's
speed using a front radar sensor to
detect the distance to the vehicle
ahead and a preset vehicle speed
without you having to use the
accelerator or brake pedals.
*1 Headway Control: Control of the distance between your vehicle and
the vehicle ahead detected by the
Mazda Radar Cruise Control
(MRCC) system.
Additionally, if your vehicle starts
closing in on the vehicle ahead such as
if the vehicle ahead brakes suddenly, a
warning sound and a warning
indication in the display are activated
simultaneously to alert you to maintain
a su fficient distance between the
vehicles.
If the vehicle ahead stops while you are
following behind it, your vehicle will
stop and be held stopped
automatically (stop hold control), and
headway control will resume when you
resume driving the vehicle such as by
pressing the RES switch.
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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.
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Do not get out of the vehicle while
the stop hold control is operating:
Getting out of the vehicle while the
stop hold control is operating is
dangerous as the vehicle may move
unexpectedly and result in an accident.
Before getting out of the vehicle,
switch the MRCC with Stop & Go
function system off, shift the selector
lever to the P position, and apply the
parking brake.
CAUTION
 If your vehicle is towed or you are
towing something, switch the MRCC
with Stop & Go function system o ff
to prevent an unexpected operation.
 Turn the system
off when the vehicle
is running on a chassis roller.
NOTE
The MRCC with Stop & Go function
system does not detect the following
as physical objects.
Vehicles approaching in the
opposite direction
Pe de st r i a ns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
with Stop & Go function.
Do not use the MRCC with Stop &
Go function 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 with Stop & Go
function system is in use, it does not
cancel even if the selector lever is
operated and any intended engine
braking does not occur. If
deceleration is required, lower the
set speed or depress the brake
pedal.
While braking by the MRCC with
Stop & Go function 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 with Stop &
Go function 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
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