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
Under the following conditions, a problem with the AUTOHOLD is occurring.
Have your vehicle inspected at an Authorized Mazda Dealer as soon as possible.
A 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.
If you switch the ignition OFF while the AUTOHOLD is operating, the parking
brake is applied automatically to assist you with parking the vehicle.
The AUTOHOLD is canceled 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
Ve h i c l e t i l t s f o r wa rd
Operates
Level ground
Does not operate, canceled
Ve h i c l e t i l t s re a r wa rd
Does not operate, canceled
: Reverse driving (selector lever/shift lever in the reverse (R) position)
When Driving
Brake
4-83
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22
3. The vehicle is held in its stoppedposition even with the brake pedal
released.
NOTE
When all of the following conditions
are met, the AUTOHOLD operates and
the brakes are held.
The ignition is switched ON (engine
is running or stopped by i-stop).
The vehicle is stopped.The brake pedal is being depressed.The AUTOHOLD active indicator
light turns on.
The accelerator pedal is not
depressed.
The driver's seat belt is fastened.The driver's door is closed.There is no problem with the
AUTOHOLD function.
The parking brake is released.There is no problem with the Electric
Pa r k i n g B ra ke ( E P B ) f u n c t i o n .
(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 try to resume driving the vehicle,
the brakes will be released
automatically and the AUTOHOLD
active indicator light turns off.
NOTE
If 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.
Under 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.
The driver’s seat belt is unfastened.The driver’s door is opened.When 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.
(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.
The AUTOHOLD can be canceled
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 canceled due
to a system malfunction or it is
necessary to cancel the AUTOHOLD
in an emergency.
When Driving
Brake
4-85
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22
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
HLA 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.
HLA does not operate if the parking
brake is applied, the vehicle has not
stopped completely, or the clutch
pedal is released.
While HLA is operating, the brake
pedal may feel stiff and vibrate,
however, this does not indicate a
malfunction.
HLA does not operate while the
TCS/DSC indicator light is
illuminated.
Refer to TCS/DSC Indication/
Indicator Light (Turns on) on page
7-33.
HLA does not turn off even if the
DSC OFF switch is pressed to turn
off
the TCS/DSC.
When Driving
Brake
4-87
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22
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 7-30.
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 tire friction
and road contact because of water on
the road surface). You can still have an
accident.
NOTE
Braking 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 tires will
build up a wedge of surface layer
when the wheels skid.
The 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
4-88
Mazda3_8KH1-EA-21K_Edition1_new
2021-7-27 16:02:22
An object that reflects the radio
waves of the radar such as a
parked vehicle, guardrail, or wall is
directly next to your vehicle.
Vehicles are stopped in the area
around your vehicle such as during
heavy traffic.
A vehicle approaching from the
front or side of your vehicle slows
down.
A vehicle approaching from the
front or left side of your vehicle
makes a right or left turn directly in
front of your vehicle.
A vehicle or pedestrian moves in
the parking lot or on the sidewalk
in the area surrounding your
vehicle.
After making a left or right turn, an
on-coming vehicle is present.
When passing an on-coming
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.
Under the following conditions, the
front side radar sensor cannot detect
approaching vehicles or it might bedifficult to detect them, and the
system may not operate normally.
The front side radar sensor
detection area is obstructed by a
nearby wall or vehicle.
Directly after the system becomes
operable.
Radio wave interference from a
radar sensor equipped on a nearby
vehicle.
The approaching vehicle has any of
the following shapes.
a) The size of the vehicle body is extremely small.
b) The vehicle height is extremelylow or high.
c) A special type of vehicle with a complex shape
A vehicle suddenly enters the
detection area from the front or
side of your vehicle.
A vehicle that has stopped
suddenly starts to move.
Multiple objects move at the same
time.
The vehicle is driven in bad
weather conditions such as heavy
rain, fog , snow, or sand storms.
The vehicle is driven on a sharp
curve or on bumpy roads.
An object that reflects the radio
waves of the radar such as a
parked vehicle, guardrail, or wall is
directly next to your vehicle.
A vehicle approaches while turning
(Such as roundabout)
The vehicle is driven at an
extremely slow speed.
In the following cases, the system
turns on the i-ACTIVSENSE warning
indication/warning light and
operation of the system is stopped. If
the i-ACTIVSENSE warning
indication/warning light remains on,
have the vehicle inspected by an
Authorized Mazda Dealer as soon as
possible.
Some problem with the system has
occurred.
The front side radar sensor
installation position is greatly
deviated.
There is a large accumulation of
snow or ice on the front bumper
near a front side radar sensor.
The temperature near the radar
sensors becomes extremely hot
due to driving for a long time on
slopes during the summer.
The battery voltage has decreased.
When Driving
i-ACTIVSENSE
4-126
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22
▼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 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.
When Driving
i-ACTIVSENSE
4-140*Some models.
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22
Also refer to the following before using
the MRCC with Stop & Go function.
AUTOHOLD (page 4-82)Forward Sensing Camera (FSC) (page
4-212)
Front radar sensor (page 4-216)
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
4-141
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22
▼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
4-144
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22