2019 MAZDA MODEL CX-30 stop start

▼Electric Parking Brake (EPB)
The EPB system applies the parking
brake using an electric motor. The
system can operate automatically and
manually.
The EPB switch indicator light turns on
when applying the parking brake and it
turns off when releasing the parking
brake.
1. Indicator light
WARNING
Do not drive the vehicle with the
parking brake applied:
If the vehicle is driven with the parking
brake applied, the brake parts may
generate heat and the brake system
may not operate, leading to an
accident.
Before driving the vehicle, release the
parking brake and make sure that the
EPB indicator light in the instrument
cluster turns off.
Apply the parking brake when leaving
the vehicle:
Not applying the parking brake when
parking the vehicle is dangerous as the
vehicle may move unexpectedly and
result in an accident. Before leaving the
vehicle, apply the parking brake and
make sure that the EPB indicator light
in the instrument cluster turns on.
NOTE
xThe parking brake cannot be applied
or released while the vehicle battery
is dead.
Refer to If a Jump-Starting on page
7-39.
xWhen the charging system warning
light in the instrument cluster turns
on, the parking brake cannot be
applied after switching the ignition
OFF. Before switching the ignition
OFF, apply the parking brake
manually.
xThe sound of the parking brake being
applied or released can be heard,
however, this does not indicate a
problem.
xIf the EPB is not used for long
periods, an automatic inspection of
the system is performed while the
vehicle is parked. An operation
sound can be heard, however, this
does not indicate a problem.
xWhen applying the parking brake
and switching OFF the ignition, an
operation sound can be heard,
however, this does not indicate a
problem.
xThe brake pedal may move while
applying or releasing the parking
brake, however, this does not
indicate a problem.
xIf there is a problem with the brake
system (foot brake) while driving the
vehicle, continually pulling up the
EPB switch will apply the brakes and
decelerate or stop the vehicle. The
parking brake on-reminder sound is
activated while the brake is applied.
In addition, when releasing the
switch, the brake is released and the
sound stops.
When Driving
Brake
4-70

AUTOHOLD
▼AUTOHOLD
The AUTOHOLD function automatically holds the vehicle stopped, even if you take
your foot
off the brake pedal. This function can be best used while stopped in
traffic
or at a
traffic light. The brakes are released when you start driving the vehicle.
WARNING
Do not rely completely on the AUTOHOLD function:
The AUTOHOLD function is only designed to assist the brake operation while the
vehicle is stopped. Neglecting to operate the brakes and relying only on the
AUTOHOLD system is dangerous and could result in an unexpected accident if the
vehicle were to suddenly move. Operate the brakes appropriately in accordance
with the road and surrounding conditions.
Do not release your foot from the brake pedal while the vehicle is stopped on a
steep grade:
Because there is a possibility of the vehicle not being held in the stopped position by
the AUTOHOLD function, the vehicle may move unexpectedly and result in an
accident.
Do not use the AUTOHOLD function on slippery roads such as icy or
snow-covered roads, or unpaved roads:
Even if the vehicle is held in the stopped position by the AUTOHOLD function, the
vehicle may move unexpectedly and result in an accident. Operate the accelerator
pedal, brakes, or steering wheel appropriately as necessary.
Immediately depress the brake pedal in the following cases:
Because the AUTOHOLD function is cancelled forcibly, the vehicle may move
unexpectedly and result in an accident.
¾“Depress Brake Pedal. Brake Hold Disabled” is displayed in the multi-information
display and the warning sound is activated at the same time.
Always apply the parking brake when parking the vehicle:
Not applying the parking brake when parking the vehicle is dangerous as the vehicle
may move unexpectedly and result in an accident. When parking the vehicle, shift
the selector lever to the P position (automatic transmission vehicle) and apply the
parking brake.
When Driving
Brake
4-74

CAUTION
If you stop operating the accelerator pedal before the vehicle starts moving , the
force holding the vehicle in the stopped position may weaken. Firmly depress the
brake pedal or depress the accelerator pedal to accelerate the vehicle.
NOTE
xUnder the following conditions, a problem with the AUTOHOLD is occurring.
Have your vehicle inspected at an expert repairer (we recommend an Authorised
Mazda Repairer) as soon as possible.
xA message is indicated on the multi-information display and a warning sound is
activated for about 5 seconds while the AUTOHOLD is operating or when you
press the AUTOHOLD switch.
xIf you switch the ignition OFF while the AUTOHOLD is operating, the parking
brake is applied automatically to assist you with parking the vehicle.
xThe AUTOHOLD is cancelled when the selector lever/shift lever is shifted to R
position while the vehicle is on level ground, or facing up a hill or grade (as shown
below).
Vehicle posture and road surface gradient AUTOHOLD operation status
Vehicle tilts forward
Operates
Level ground
Does not operate, cancelled
Vehicle tilts rearward
Does not operate, cancelled
: Reverse driving (selector lever/shift lever in the reverse (R) position)
When Driving
Brake
4-75

▼AUTOHOLD System is Turned On
Press the AUTOHOLD switch and
when the AUTOHOLD standby
indicator light turns on, the
AUTOHOLD function turns on.
1. AUTOHOLD standby indicator light
NOTE
When all of the following conditions
are met, the AUTOHOLD standby
indicator light turns on when the
AUTOHOLD switch is pressed and the
AUTOHOLD function turns on.
xThe ignition is switched ON (engine
is running or stopped by i-stop).
xThe driver's seat belt is fastened.xThe driver's door is closed.xThere is no problem with the
AUTOHOLD function.
To operate AUTOHOLD and hold the
brakes
1. Depress the brake pedal and bring
the vehicle to a complete stop.
2. The AUTOHOLD active indicator
light in the instrument cluster turns
on and the brakes are held.
3. The vehicle is held in its stopped
position even with the brake pedal
released.
NOTE
When all of the following conditions
are met, the AUTOHOLD operates and
the brakes are held.
xThe ignition is switched ON (engine
is running or stopped by i-stop).
xThe vehicle is stopped.xThe brake pedal is being depressed.xThe AUTOHOLD active indicator
light turns on.
xThe accelerator pedal is not
depressed.
xThe driver's seat belt is fastened.xThe driver's door is closed.xThere is no problem with the
AUTOHOLD function.
xThe parking brake is released.xThere is no problem with the Electric
Parking Brake (EPB) function.
x(Automatic transmission vehicle)
The selector lever is in a position
other than R position or the vehicle
tilts forward with the selector lever in
the R position.
To release AUTOHOLD and start
driving the vehicle
If you do any of the following actions
to resume driving the vehicle, the
brakes will be released automatically
and the AUTOHOLD active indicator
light turns off.
x(Manual transmission vehicle)
You start to release the clutch pedal
with the shift lever shifted to a
position other than the neutral
position
x(Automatic transmission vehicle)
xThe accelerator pedal is depressed.xThe vehicle tilts rearward or the
selector lever is shifted to the R
position on level ground.
When Driving
Brake
4-76

Hill Launch Assist (HLA)
▼Hill Launch Assist (HLA)
The HLA functions to assist in
accelerating the vehicle from a stop on
slopes. When releasing the brake pedal
and depressing the accelerator pedal
to accelerate the vehicle from a stop
while on a slope, the function prevents
the vehicle from rolling. The HLA also
operates when reversing on a slope.
The braking force is maintained
automatically after releasing the brake
pedal on a steep slope.
For manual transmission vehicles, the
HLA operates when the vehicle is tilted
rearward with the shift lever in a
forward gear, and operates when the
vehicle is tilted forward with the shift
lever in the R position.
For automatic transmission vehicles,
the HLA operates when the vehicle is
tilted rearward with the selector lever
in a forward gear, and operates when
the vehicle is tilted forward with the
selector lever in the R position.
WARNING
Do not rely completely on
HLA:
HLA is an auxiliary device for
accelerating from a stop on a slope.
The system only operates for about 2
seconds and therefore, relying only on
the system, when accelerating from a
stop is dangerous because the vehicle
may move (roll) unexpectedly and
cause an accident.
The vehicle could roll depending on
the vehicle's load or if it is towing
something. In addition, for vehicles
with a manual transmission, the
vehicle could still roll depending on
how the clutch pedal or the accelerator
pedal is operated.
Always confirm the safety around the
vehicle before starting to drive the
vehicle.
NOTE
xHLA does not operate on a gentle
slope. In addition, the gradient of
the slope on which the system will
operate changes depending on the
vehicle's load.
xHLA does not operate if the parking
brake is applied, the vehicle has not
stopped completely, or the clutch
pedal is released.
xWhile HLA is operating, the brake
pedal may feel stiff and vibrate,
however, this does not indicate a
malfunction.
xHLA does not operate while the
TCS/DSC indicator light is
illuminated.
Refer to TCS/DSC Indication/
Indicator Light (Turns on) on page
7-55.
xHLA does not turn off even if the TCS
OFF switch is pressed to turn
off the
TCS.
x(Automatic Transmission)
Although the HLA does not operate
during idling stop, the vehicle roll
prevention function operates to
prevent vehicle roll.
When Driving
Brake
4-79

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

Off-Road Traction Assist switch
indicator light turn on.
1. Off-Road Traction Assist switch
indicator light
If the switch is pressed again, the
Off-Road Traction Assist is stopped
and the Off-Road Traction Assist
indicator light and the Off-Road
Traction Assist switch indicator light
turn off.

NOTE
If the engine is stopped with the
Off-Road Traction Assist operational,
the
Off-Road Traction Assist is stopped
when the engine is started the next
time.
When Driving
ABS/TCS/DSC/Off-Road Traction Assist
4-85

M Hybrid
▼M Hybrid
M Hybrid uses the Integrated Starter-Generator (ISG) with excellent power
generation efficiency to generate electricity from the kinetic energy generated when
the vehicle decelerates. The system uses the electrical power stored in the M Hybrid
battery, which is a large-capacity battery to improve driveability and fuel economy by
reducing engine load and providing motor assist. In addition, the ISG provides quiet
engine restarting after the engine is stopped by after the i-stop function (idling stop).
1. ISG
2. DC-DC Converter
3. M Hybrid battery
CAUTION
¾The following parts are extremely hot and have high-current electricity
flowing
through them, therefore do not touch them.
¾ISG
¾DC-DC Converter
¾M Hybrid battery
¾If the driver's door is opened under the following conditions, the vehicle
determines that the driver is trying to leave the driver's seat, a warning sound
notifying the driver of possible danger is activated, and the warning indication is
displayed.
When Driving
M Hybrid
4-86