MAZDA MODEL 3 SEDAN 2021 Owners Manual

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

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
i-ACTIVSENSE
4-130
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

▼Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function) Display
Indication
The MRCC with Stop & Go function
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 with Stop & Go function set
vehicle speed

Multi-information Display
(i-ACTIVSENSE display)
1. Vehicle ahead display
2. MRCC with Stop & Go function set vehicle speed

Active driving display
1. Vehicle ahead display
2. MRCC with Stop & Go function set vehicle speed

If there is a problem with the MRCC
with Stop & Go function 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.
When Driving
i-ACTIVSENSE
4-131
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

▼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 with Stop &
Go function system has been set.
Directly after the accelerator pedal is
released.
Another vehicle cuts into the driving
lane in front of you.
When Driving
i-ACTIVSENSE
4-132
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

▼Setting the System
The MRCC with Stop & Go function system operates when all of the following
conditions are met.
Vehicle speed is 0 km/h (0 mph) to 145 km/h (90 mph)The MRCC with Stop & Go function is turned on.The brake pedal is not depressed.The parking brake is released (Electric Parking Brake (EPB) indicator light is turned
o
ff).
There is no problem with the DSC.All the doors are closed.The driver's seat belt is fastened.The selector lever is in the drive (D) position or manual (M) position (manual
mode).
NOTE
In the following cases, the MRCC with Stop & Go function system is canceled
when the vehicle is traveling at 30 km/h (20 mph) or less and “Mazda Radar
Cruise Control Disabled Under 30 km/h” is displayed in the multi-information
display.
The Forward Sensing Camera (FSC) canno t detect target objects (There is
problem with the Forward Sensing Camera (FSC) or windshield is dirty).
There is a problem with the stop hold control function.There is a problem with the Electric Parking Brake (EPB).It may not be possible to set the MRCC with Stop & Go function system directly
after starting the engine, while the DSC operation is being checked.
Turning on the system
1. CANCEL switch
2. RES switch
3. MRCC switch

When Driving
i-ACTIVSENSE
4-133
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

When the MRCC switch is pressed once, the MRCC with Stop & Go function system
turns on, and the MRCC with Stop & Go function standby indication (white) turns
on and the vehicle speed and the distance between the vehicles while in headway
control can be set.
In addition, the MRCC with Stop & Go function system display indication is
displayed on the multi-information display and the active driving display at the same
time.
NOTE
If the ignition is switched off while the MRCC with Stop & Go function system is
operating, the system will be operable when the ignition is switched ON the next
time.
How to set the speed
Adjust the vehicle speed to the desired setting using the accelerator pedal and press
the RES switch up (SET+) or down (SET -) to start headway control.
The set speed is indicated on the display. At the same time, the MRCC standby
indication (white) changes to the MRCC set indication (green).
Trave l s t at u s Indication on multi-information
display Indication on active driving dis-
play
During travel at constant speed
During travel under headway
control
When Driving
i-ACTIVSENSE
4-134
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

NOTE
If a vehicle ahead is detected while traveling at a constant speed, the
vehicle-ahead indication is displayed and headway control is performed.
Additionally, when a vehicle ahead is no longer detected, the vehicle-ahead
indication turns off and the system switches back to travel at constant speed.
The lowest possible speed which can be set on the MRCC with Stop & Go
function system is 30 km/h (19 mph).
Headway control is not possible if the vehicle ahead is driving faster than your
vehicle's set speed. Adjust the system to the desired vehicle speed using the
accelerator pedal.
How to set the distance-between-vehicles during headway control
The distance-between-vehicles can be set to 4 levels; Long, medium, short, and
extremely short distance.
The distance-between-vehicles is set to a shorter distance by pressing the CANCEL
switch down. The distance-between-vehicles is set to a longer distance by pressing
the CANCEL switch up.
Distance-between-vehicles guideline
(at 80 km/h (50 mph) vehicle speed) Indication on multi-information
display Indication on active driving dis-
play
*1
Long (about 50 m (164 ft))
Medium (about 40 m (131 ft))
Short (about 30 m (98 ft))
When Driving
i-ACTIVSENSE
4-135
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Distance-between-vehiclesguideline
(at 80 km/h (50 mph) vehicle speed) Indication on multi-information
display Indication on active driving dis-
play
*1
Extremely short (about 25 m (82
ft))
*1 Displays a pop-up image in the active driving display only when the driver operates the switch.
NOTE
The distance-between-vehicles di ffers depending on the vehicle speed, and the
slower the vehicle speed, the shorter the distance.
When the ignition is switched to ACC or OFF and then the engine is started again,
the system automatically sets the distance-between-vehicles to the previous
setting.
When Driving
i-ACTIVSENSE
4-136
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

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.
The setting speed can be changed by
operating the RES switch up (SET+)
or down (SET -) during stop hold
control.
Canceling the system
When the following operations are
performed, the MRCC with Stop & Go
function system is canceled, and the
MRCC with Stop & Go function set
indication (green) switches to the
MRCC with Stop & Go function
standby indication (white) at the same
time.
The CANCEL switch is pressed.The brake pedal is depressed.The selector lever is in the P (Park), N
(Neutral), or R (Reverse) position.

Under the following conditions, the
MRCC with Stop & Go function 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 parking brake is automatically
applied during stop hold control.
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 with Stop &
Go function control is high.
When Driving
i-ACTIVSENSE
4-137
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Resuming control
If the MRCC with Stop & Go function
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 o
ff.
▼ Stop Hold Control
While in headway control using the
MRCC with Stop & Go function
system, your vehicle will stop when a
vehicle ahead stops. When the vehicle
is stopped and the stop hold control
operates, the MRCC with Stop & Go
function indicator light turns on.
NOTE
If the MRCC with Stop & Go
function system is canceled during
stop hold control, the vehicle is held
in its stopped position.
The parking brake is automatically
applied and the vehicle is held in its
stopped position when 10 minutes
have elapsed since the stop hold
control operated. At this time, the
MRCC with Stop & Go function
system is canceled.
The brake lights turn on during stop
hold control.
To resume driving
After the vehicle ahead starts moving
while your vehicle is stopped under
stop hold control, press the RES switch
or depress the accelerator pedal to
cancel the stop hold control and
resume driving.
When Driving
i-ACTIVSENSE
4-138
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34