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 op erated, 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 perform ed, 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.
When Driving
i-ACTIVSENSE
4-137
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
Also refer to the following before using
the MRCC with Stop & Go function.
AUTOHOLD (page 4-82)Forward Sensing Camera (FSC) (page
4-211)
Front radar sensor (page 4-215)
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 traffic is heavy with
insufficient 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
4-140
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
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 off
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 d e s t r i a n sStationary 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 off 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
4-141
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
▼Setting the System
The MRCC with Stop & Go function syst
em 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
off).
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) cannot detect target objects (There is
problem with the Forward Sensing Came ra (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 wi th 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
4-144
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
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 MR CC 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.
Resuming control
If the MRCC with Stop & Go function syst em 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 di splay, the control does not resume even if
the RES switch is pressed.
Turning off the system
When the MRCC switch is pressed while the MRCC is operating, the MRCC turns
off.
When Driving
i-ACTIVSENSE
4-148
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
▼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.
NOTE
When you resume driving by pressing
the RES switch, your vehicle does not
start moving until the distance
between your vehicle and the vehicle
ahead lengthens to the specified
distance or farther.
If the MRCC with Stop & Go
function is temporarily canceled
during stop hold control, you cannot
resume driving by pressing the RES
switch when there are no vehicles in
front of your vehicle. Depress the
accelerator pedal and resume driving
the vehicle.
If the vehicle ahead starts moving
within 3 seconds after your vehicle is
stopped by the stop hold control,
headway control will resume even if
you do not resume driving your
vehicle, such as by depressing the
accelerator pedal.
Resume driving information
If you do not resume driving within a
few seconds after the vehicle ahead
starts moving, the multi-information
display vehicle-ahead indication
flashes to urge the driver to resume
driving. If you do not resume driving
after the indicator light flashes, a
sound is activated to urge you to
resume driving.
When Driving
i-ACTIVSENSE
4-149
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
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).
Tires of a different specified 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.
Do not get out of the vehicle while
the stop hold control is operating.
(Automatic transmission vehicle)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 TJA off, apply the parking
brake, and then shift the selector lever
to the P position.
CAUTION
Turn the system off when the vehicle is
running on a chassis roller.
Heed the following cautions so that
the TJA can operate normally.
Turn the system off when the vehicle
is running on a chassis roller.
Do not modify the vehicle's
suspensions.
Always use wheels of the specified
size for the front and rear wheels.
Consult an Authorized Mazda Dealer
for tire replacement.
NOTE
The headway control does not detect
the following as physical objects.
Vehicles approaching in the
opposite direction
Pe de st r ia nsStationary 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 off the ground in front of
the vehicle, the system may operate.
Therefore, do not use the TJA.
Do not use the TJA under conditions
in which close proximity warnings
are frequently activated.
When Driving
i-ACTIVSENSE
4-151
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10
▼Setting the System
Operation conditions
Headway control function
The TJA operates when all of the following conditions are met.
(Automatic transmission vehicle)
The vehicle speed is about 0 km/h (0 mph) to 145 km/h (90 mph).The selector lever is in the D or M position (manual mode).(Manual transmission vehicle)
The vehicle speed is about 30 km/h (19 mph) to 145 km/h (90 mph).The shift lever is in a position other than the R or N position.The clutch pedal is not depressed.The TJA is operating.The headway control function of the Mazda Radar Cruise Control (MRCC) or
Mazda Radar Cruise Control with Stop
& Go function (MRCC with Stop & Go
function) is set to operable (if it was set to inoperable, set it to operable using the
personalization function).
The brake pedal is not depressed.The parking brake is released (Electric Parking Brake (EPB) indicator light is turned off).
There is no problem with the DSC.All the doors are closed.The driver's seat belt is fastened.
NOTE
(Automatic transmission vehicle)
Under the following conditions, the TJA cannot be used when the vehicle speed is
30 km/h (19 mph) or slower.
There is a problem with the stop hold control function.There is a problem with the Electric Parking Brake (EPB).The TJA may not launch directly after the engine starts.
When Driving
i-ACTIVSENSE
4-156
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10