2019 MAZDA MODEL CX-30 brakes

NOTE
xIf the Electric Parking Brake (EPB)
switch is pulled while the
AUTOHOLD is operating , the
parking brake is applied and the
AUTOHOLD is released. In addition,
if the parking brake is released under
this condition, the AUTOHOLD
operates to hold the brakes.
xUnder the following conditions, the
parking brake is automatically
applied and the AUTOHOLD is
released. The AUTOHOLD is
re-enabled when the conditions
before the AUTOHOLD is released
are restored.
xThe driver’s seat belt is unfastened.xThe driver’s door is opened.xWhen about 10 minutes or longer
have passed since the AUTOHOLD
operation started, the parking brake
is automatically applied. Because the
AUTOHOLD is restored when
releasing the parking brake, the hold
on the brakes by AUTOHOLD
function resumes.
x(Manual transmission vehicle)
When starting to drive the vehicle
forward or in reverse on a down
slope, depress the clutch pedal and
shift the shift lever to the appropriate
position for driving in the desired
direction, and then depress the
accelerator pedal to release the
AUTOHOLD.
xThe AUTOHOLD can be cancelled
forcibly by fully depressing the
accelerator pedal for 1 second or
longer while the AUTOHOLD is
operating. Forcibly cancel the
AUTOHOLD only when the
AUTOHOLD cannot be cancelled
due to a system malfunction or it is
necessary to cancel the AUTOHOLD
in an emergency.
▼AUTOHOLD System is Turned Off
Depress the brake pedal and press the
AUTOHOLD switch. The AUTOHOLD
is turned off and the AUTOHOLD
standby indicator light turns off.
1. AUTOHOLD standby indicator light
NOTE
xWhen the brakes are not held such
as while driving the vehicle, the
AUTOHOLD can be turned off only
by pressing the AUTOHOLD switch.
xIf the AUTOHOLD switch is pressed
without depressing the brake pedal
while AUTOHOLD is operating
(AUTOHOLD active indicator light in
instrument cluster is turned on), the
message “Depress Brake Pedal and
Operate Switch to Release” is
indicated on the multi-information
display to notify the driver to depress
the brake pedal.
xIf any of the following conditions
occurs while the AUTOHOLD
function is operating (AUTOHOLD
active indicator light is turned on),
the parking brake is applied
automatically and the AUTOHOLD
function turns off. For the Electric
Parking Brake (EPB) operation, refer
to the Electric Parking Brake (EPB) on
page 4-70.
xThe ignition is switched OFF.
When Driving
Brake
4-77

xThere is a problem with the
AUTOHOLD function.Emergency Stop Signal
System
▼Emergency Stop Signal System
If you apply the brakes suddenly while
driving at a speed of about 55 km/h
(34 mph) or faster, the emergency stop
signal system automatically and rapidly
flashes all the direction indicator lights
to caution drivers behind your vehicle
of the sudden braking situation.
NOTE
xFlashing
When you bring your vehicle to a
complete stop while all the direction
indicator lights are flashing rapidly,
the rapid
flashing of all the direction
indicator lights changes back to the
normal flashing pattern. The
direction indicator lights turn off
when you release your foot from the
brake pedal.
xOperation
xWhen the ABS operates, the
emergency stop signal system is
more likely to operate. Therefore, if
the brake pedal is depressed on a
slippery road, all of the direction
indicator lights may
flash.
xThe emergency stop signal system
does not operate when the hazard
warning light switch is pressed.
When Driving
Brake
4-78

Antilock Brake System
(ABS)
▼Antilock Brake System (ABS)
The ABS control unit continuously
monitors the speed of each wheel. If
one wheel is about to lock up, the ABS
responds by automatically releasing
and reapplying that wheel's brake.

The driver will feel a slight vibration in
the brake pedal and may hear a
chattering noise from the brake system.
This is normal ABS system operation.
Continue to depress the brake pedal
without pumping the brakes.

The warning light turns on when the
system has a malfunction.
Refer to ABS Warning Indication/
Warning Light on page 7-52.
WARNING
Do not rely on ABS as a substitute for
safe driving:
The ABS cannot compensate for unsafe
and reckless driving, excessive speed,
tailgating (following another vehicle
too closely), driving on ice and snow,
and hydroplaning (reduced tyre friction
and road contact because of water on
the road surface). You can still have an
accident.
NOTE
xBraking distances may be longer on
loose surfaces (snow or gravel, for
example) which usually have a hard
foundation. A vehicle with a normal
braking system may require less
distance to stop under these
conditions because the tyres will
build up a wedge of surface layer
when the wheels skid.
xThe sound of the ABS operating may
be heard when starting the engine or
immediately after starting the
vehicle, however, it does not indicate
a malfunction.
When Driving
ABS/TCS/DSC/Off-Road Traction Assist
4-80

Traction Control System
(TCS)
▼Traction Control System (TCS)
The Traction Control System (TCS)
enhances traction and safety by
controlling engine torque and braking.
When the TCS detects driving wheel
slippage, it lowers engine torque and
operates the brakes to prevent loss of
traction.

This means that on a slick surface, the
engine adjusts automatically to provide
optimum power to the drive wheels,
limiting wheel spin and loss of traction.

The warning light turns on when the
system has a malfunction.
Refer to TCS/DSC Indication/
Indicator Light (Turns on) on page
7-55.
WARNING
Do not rely on the Traction Control
System (TCS) as a substitute for safe
driving:
The Traction Control System (TCS)
cannot compensate for unsafe and
reckless driving , excessive speed,
tailgating (following another vehicle
too closely), and hydroplaning
(reduced tyre friction and road contact
because of water on the road surface).
You can still have an accident.
Use snow tyres or tyre chains and
drive at reduced speeds when roads
are covered with ice and/or snow:
Driving without proper traction devices
on snow and/or ice-covered roads is
dangerous. The Traction Control
System (TCS) alone cannot provide
adequate traction and you could still
have an accident.
NOTE
To turn off the TCS, press the TCS OFF
switch (page 4-82).
▼TCS/DSC Indicator Light
This indicator light stays on for a few
seconds when the ignition is switched
ON. If the TCS or DSC is operating ,
the indicator light flashes.

If the light stays on, the TCS, DSC or
the brake assist system may have a
malfunction and they may not operate
correctly. Take your vehicle to an
expert repairer (we recommend an
Authorised Mazda Repairer).
NOTE
xIn addition to the indicator light
flashing, a slight labouring sound will
come from the engine. This indicates
that the TCS/DSC is operating
properly.
xOn slippery surfaces, such as fresh
snow, it will be impossible to achieve
high rpm when the TCS is on.
When Driving
ABS/TCS/DSC/Off-Road Traction Assist
4-81

Mazda Radar Cruise
Control (MRCC)
*
▼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 sufficient distance between the
vehicles.
Also refer to the following before using
the MRCC.
xFront radar sensor (page 4-220)
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
sufficiently 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:
¾General roads other than highways
(Driving under these conditions
using the MRCC system is not
possible.)
¾Roads 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 is
not possible).
¾When 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).
¾Slippery roads such as ice or
snow-bound roads (Tyres could spin
causing you to lose vehicle control,
or the stop hold control may not
operate.)
¾Long , descending slopes (to
maintain distance between vehicles,
the system automatically and
continuously applies the brakes
which could result in the loss of
brake power.)
¾Slopes with a steep gradient (The
vehicle ahead may not be detected
correctly.)
¾Two-wheeled vehicles such as
motorcycles or bicycles are ahead.
When Driving
i-ACTIVSENSE
4-130*Some models.

For safety purposes, switch the MRCC
system off 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
¾Turn the system off when the vehicle
is running on a chassis roller.
¾If your vehicle is towed or you are
towing something , switch the MRCC
system off to prevent an unexpected
operation.
NOTE
xThe MRCC system does not detect
the following as physical objects.
xVehicles approaching in the
opposite direction
xPedestriansxStationary objects (stopped
vehicles, obstructions)
xIf a vehicle ahead is travelling at an
extremely low speed, the system
may not detect it correctly.
xIf 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.
xDo not use the MRCC system under
conditions in which close proximity
warnings are frequently activated.
xDuring 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.
xWhile the MRCC system is in use, it
does not cancel even if the selector
lever (automatic transmission)/shift
lever (manual transmission) is
operated and any intended engine
braking will not occur. If deceleration
is required, lower the vehicle speed
setting or depress the brake pedal.
xWhile braking by the MRCC control
is operating, you might hear an
operation sound, however, this does
not indicate a problem.
xThe 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 travelling at a constant speed and
following a vehicle ahead.
xStop 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.
▼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.
When Driving
i-ACTIVSENSE
4-131

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
centre display to verify the problem
and then have your vehicle inspected
by an expert repairer (we recommend
an Authorised Mazda Repairer).
Refer to If a Warning Light Turns On or
Flashes on page 7-49.
▼Close Proximity Warning
If your vehicle rapidly closes in on the
vehicle ahead because the vehicle
ahead applies the brakes suddenly
while you are travelling 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.
xYou are driving your vehicle at the
same speed as the vehicle ahead.
xDirectly after the MRCC system has
been set.
xDirectly after the accelerator pedal is
released.
When Driving
i-ACTIVSENSE
4-132

Mazda Radar Cruise
Control with Stop & Go
function (MRCC with
Stop & Go function)
*
▼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 sufficient 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.
Also refer to the following before using
the MRCC with Stop & Go function.
xi-stop (page 4-11)xAUTOHOLD (page 4-74)xForward Sensing Camera (FSC) (page
4-216)
xFront radar sensor (page 4-220)
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:
¾General roads other than highways
(Driving under these conditions
using the MRCC with Stop & Go
function system is not possible.)
¾Roads 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 Driving
i-ACTIVSENSE
*Some models.4-139