warning MAZDA MODEL 3 HATCHBACK 2020 (in English) Repair Manual

▼i-ACTIVSENSE Switch*
When the i-ACTIVSENSE switch is
pressed, the following systems are
canceled and the i-ACTIVSENSE OFF
symbol (Warning/risk avoidance support
system) in the instrument cluster is
displayed.
Lane Departure Warning System
(LDWS)
Blind Spot Monitoring (BSM)
Distance & Speed Alert (DSA)
Front Cross Traffic Alert (FCTA)
Rear Cross Traffic Alert (RCTA)
Lane-keep Assist System (LAS)
i-ACTIVSENSE OFF symbol (Warning/
risk avoidance support system)
If the i-ACTIVSENSE switch is pressed
again, the systems return to their original
operation status and the i-ACTIVSENSE
OFF symbol (Warning/risk avoidance
support system) turns off.
If the ignition is switched OFF while you
have canceled the systems using the
i-ACTIVSENSE switch, the systems are
automatically enabled the next time the
ignition is switched ON. However, if the
systems are canceled using the
personalization features, the systems are
not automatically enabled.
NOTE
For the systems which can be canceled
using the i-ACTIVES
ENSE switch, they
cannot be canceled when the following
systems are operating, even if you press
the i-ACTIVSENSE switch.
Mazda Radar Cruise Control (MRCC)
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function)
Traffic Jam Assist (TJA)
You can select systems you want to
cancel using the personalization
features.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
When Driving
i-ACTIVSENSE
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Adaptive Front LightingSystem (AFS)
*
▼Adaptive Front Lighting System
(AFS)
The adaptive front lighting system (AFS)
automatically adjusts
the headlight beams
to the left or right i n conjunction with the
operation of the steering wheel after the
headlights have been turned on and the
vehicle speed is about 2 km/h (2 mph) or
higher.
A system malfunction or operation
conditions are indicated by a warning.
Refer to Exterior Light Warning
Indication/Warning Light on page 7-34.
NOTE
The Adaptive Front Lighting System (AFS)
can be switched to on/off using the
personalization function.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
High Beam Control
System (HBC)
*
▼ High Beam Control System (HBC)
The HBC determines the conditions in
front of the vehicle using the Forward
Sensing Camera (FSC) while driving in
darkness to automatically switch the
headlights between high and low beams.
Refer to Forward Sensing Camera (FSC)
on page 4-200.
While driving the vehicle at a speed of
about 30 km/h (19 mph) or more, the
headlights are switc
hed to high beams
when there are no vehicles ahead or
approaching in the opposite direction.
The system switches the headlights to low
beams when one of the following occurs:
The system detects a vehicle or the
headlights/lights of a vehicle
approaching in the opposite direction.
The vehicle is driven on roads lined with
streetlamps or on road s in well-lit cities
and towns.
The vehicle is driven at less than about
20 km/h (12 mph).
The headlight high-beam indicator light
turns on while the high beams are on.
1. Forward Sensing Camera (FSC)*1
When Driving
i-ACTIVSENSE
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*1 The recognition distance of the Forward SensingCamera (FSC) varies according to the
surrounding conditions.
The warning light turns on when the
system has a malfunction.
Refer to High Beam Control System
(HBC) Warning Indication/Warning Light
(Amber) on page 7-34.
CAUTION
Do not adjust the ve hicle height, modify
the headlight units, or remove the
camera, otherwise the system will not
operate normally.
 Do not rely excessively on the HBC and
drive the vehicle while paying sufficient
attention to safety. Switch the headlights
between the high beams and low beams
manually if necessary.
NOTE
The timing in which the system switches
the headlights changes under the
following conditions. If the system does
not switch the headlights appropriately,
manually switch between high and low
beams according to the visibility as well as
road and traffic conditions.
When there are sources of light in the
area such as street lamps, illuminated
signboards, and traffic signals.
When there are reflective objects in the
surrounding area such as reflective
plates and signs.
When visibility is reduced under rain,
snow and foggy conditions.
When driving on roads with sharp turn
or hilly terrain.
When the headlights/rear lamps of
vehicles in front of you or in the
opposite lane are dim or not
illuminated.
When there is insufficient darkness such
as at dawn or dusk.
When the trunk/luggage compartment is
loaded with heavy objects or the rear
passenger seats are occupied.
When visibility is reduced due to a
vehicle in front of you spraying water
from its tires onto your windshield.
▼ To Operate the System
The HBC operates to switch the headlights
automatically between high and low
beams after the ignition is switched ON
and the headlight switch is in the AUTO
and low beam position.
The HBC determines t
hat it is dark based
on the brightness of the surrounding area.
At the same time, th e HBC indicator light
(green) in the instrument cluster
illuminates.

NOTE
Operation of the HBC function can be
disabled.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
When Driving
i-ACTIVSENSE
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▼Manual Switching
Switching to low beams
Switch the headlight switch to the
position, or press the high beam control
switch.
The HBC indicator ligh
t (green) turns off.
1. High beam control switch

If the HBC is turned off using the high
beam control switch, press the high beam
control switch again to turn the HBC back
on.
Switching to high beams
Shift the lever to the high beam position.
The HBC indicator light (green) turns off
and the headlight high-beam indicator
light is illuminated.
Lane Departure Warning
System (LDWS)
*
▼Lane Departure Warning System
(LDWS)
The LDWS alerts th
e driver that the
vehicle may be deviating from its lane.
The system detects the white (yellow)
lines on the traffic lan e using the forward
sensing camera (FSC) and if it determines
that the vehicle might be deviating from
its lane, it notifies the driver by the
LDWS.
Refer to Forward Sensing Camera (FSC)
on page 4-200.
Use the LDWS when you drive the vehicle
on roads with white (yellow) lines.
1. Forward sensing camera (FSC)
2. Multi-information display
When Driving
i-ACTIVSENSE
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▼When the System Operates
When the ignition is switched ON, the
i-ACTIVSENSE status symbol (warning/
risk avoidance support system) (white)
turns on and the system goes on standby.
NOTE
If the i-ACTIVSENSE status symbol
(warning/risk avoidance support system)
(white) does not turn on, the system is
canceled using the i-ACTIVSENSE switch
or the personalization feature.
Operation conditions
When all of the foll
owing conditions are
met, the i-ACTIVSE NSE status symbol
(warning/risk avoidance support system)
on the multi-information display changes
from white to green and the system
becomes operational.
The ignition i s switched ON.
The vehicle speed is about 64 km/h (40
mph) or faster.
The system detects white (yellow) lane
lines.
NOTE
When the system does not detect a white
(yellow) lane line on one side only, the
system does not operate on the side that is
not being detected.
When temporarily canceling the system
The LDWS goes on standby in the
following cases: The LDWS operation is
automatically restored when the system's
operation conditions are met.
The system cannot detect white (yellow)
lane lines.
The vehicle speed is less than about 56
km/h (35 mph).
The turn signal lever is operated.
The accelerator pedal is depressed.
The steering wheel is operated.
The brake pedal is operated.
The function is temporarily stopped.
The LDWS stops functioning in the
following cases:
The temperature in the forward sensing
camera (FSC) is high or low.
The windshield around the forward
sensing camera (FSC) is foggy.
The windshield around the forward
sensing camera (FSC) is blocked by an
obstruction, causing poor forward
visibility.
When Driving
i-ACTIVSENSE
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Strong light (such as sunlight, or
headlights (high-beam) of on-coming
vehicles) is directed at the forward
sensing camera (FSC).
System malfunction
If there is a problem with the system, the
i-ACTIVSENSE status symbol (warning/
risk avoidance support system) (white)
and the i-ACTIV SENSE warning
indication/warning light on the
multi-information display turns on and a
message is indicated.
Refer to i-ACTIVSENSE Status Symbol
(Warning/Risk Avoidance Support
System) on page 4-85.
▼ LDWS Warning
If the system determines that the vehicle
may deviate from its lane, a warning (beep
sound, steering wheel vibration) is
activated and the direction in which the
system determines that the vehicle may
deviate is indicated on the
multi-information display.
NOTE
The LDWS settings can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
You may not be able to hear the LDWS
warning sound depending on the
surrounding conditions such as outside
noise.
If you set the LDWS to vibrate the
steering wheel, you may not feel the
vibrations depending on the road
surface conditions.
▼Canceling the System
The LDWS can be set to inoperable.
(If only the LDWS is turned off)
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(If the LDWS is
turned off by
operating the i-ACTIVSENSE switch)
Refer to i-ACTIV SENSE Switch on
page 4-87.
NOTE
If the ignition is switched OFF while you
have canceled the system using the
i-ACTIVSENSE switch, the system is
automatically enabled the next time the
ignition is switched ON. However, if the
system is canceled using the
personalization features, the system is not
automatically enabled.
When Driving
i-ACTIVSENSE
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Blind Spot Monitoring(BSM)
*
▼Blind Spot Monitoring (BSM)
The BSM is designed to assist the driver in
checking the area to the rear of the vehicle
on both sides during lane changes by
notifying the driver of the presence of
vehicles approaching from the rear in an
adjacent lane.
BSM operation
The BSM detects vehicles approaching
from the rear while traveling in the
forward direction at a speed of 10 km/h
(6.3 mph) or faster and notifies the driver
by turning on the BSM warning indicator
light and displaying t
he vehicle detection
screen.
If the turn signal lever is operated to signal
a turn in the direc tion in which the BSM
warning indicator light is illuminated
while the approaching vehicle is detected,
the BSM notifies the driver of possible
danger flashing on the BSM warning
indicator light, and by activating the
warning sound and the warning screen
indicator display.
The detection area on this system covers
the driving lanes on both sides of the
vehicle and from the rear part of the front
doors to about 50 m (164 ft) behind the
vehicle.
1. Your vehicle
2. Detection areas
WA R N I N G
Always check the surrounding area visually
before making an actual lane change:
The system is only designed to assist you in
checking for vehicles at your rear when
making a lane change. Due to certain
limitations with the operation of this
system, the BSM warning indicator light,
the warning sound and the warning screen
indicator display may not activate or they
might be delayed even though a vehicle is
in an adjacent driving lane. Always make it
your responsibility as a driver to check the
rear.
NOTE
The BSM will operate when all of the
following conditions are met:
The ignition is switched ON.
The i-ACTIVSENSE warning
indication/warning light in the
instrument cluster is turned off.
When Driving
i-ACTIVSENSE
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The vehicle speed is about 10 km/h
(6.3 mph) or faster.
The BSM will not operate under the
following circumstances.
The vehicle speed falls below about
10 km/h (6.3 mph) even though the
i-ACTIVSENSE warning indication/
warning light is turned off.
The shift lever (manual transmission)/
selector lever (automatic
transmission) is shifted to reverse (R)
and the vehicle is reversing.
The turning radius is small (making a
sharp turn, turning at intersections).
In the following cases, the
i-ACTIVSENSE warning indication/
warning light turns on and operation of
the system is stopped. If the
i-ACTIVSENSE warning indication/
warning light remains illuminated, have
the vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Some problem with the system
including the BSM warning indicator
lights is detected.
A large deviation in the installation
position of a rear side radar sensor on
the vehicle has occurred.
There is a large accumulation of snow
or ice on the rear bumper near a rear
side radar sensor. Remove any snow,
ice or mud on the rear bumper.
Driving on snow-covered roads for
long periods.
The temperature near the rear side
radar sensor becomes extremely hot
due to driving for long periods on
slopes during the summer.
The battery voltage has decreased.
Under the following conditions, the rear
side radar sensor cannot detect target
objects or it may be difficult to detect
them.
The rear bumper around the rear side
radar sensor is deformed.
Radio wave interference from a radar
sensor equipped on a nearby vehicle.
The approaching vehicle is any of the
following shapes.
a) The size of the vehicle body is extremely small.
b) The vehicle height is extremely low or high.
c) A special type of vehicle with a complex shape.
A vehicle is in the detection area at
the rear in an adjacent driving lane
but it does not approach. The BSM
determines the condition based on
radar detection data.
A vehicle is traveling alongside your
vehicle at nearly the same speed for
an extended period of time.
Vehicles approaching in the opposite
direction.
A vehicle in an adjacent driving lane
is attempting to pass your vehicle.
A vehicle is in an adjacent lane on a
road with extremely wide driving
lanes. The detection area of the rear
side radar sensor is set at the road
width of expressways.
In the following case, the flashing of the
BSM warning in dicator light, and the
activation of the warning sound and the
warning screen indicator display may
not occur or they may be delayed.
A vehicle makes a lane change from a
driving lane two lanes over to an
adjacent lane.
When Driving
i-ACTIVSENSE
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Driving on steep slopes.
Crossing the summit of a hill or
mountain pass.
When there is a difference in the
height between your driving lane and
the adjacent lane.
Directly after the BSM system
becomes operable by changing the
setting.
If the road width is extremely narrow,
vehicles two lanes over may be detected.
The detection area of the rear side radar
sensor is set according to the road width
of expressways.
The BSM warning indicator light may
turn on and the vehicle detection screen
may be displayed in the display in
reaction to stationary objects
(guardrails, tunnels, sidewalls, and
parked vehicles) on the road or the
roadside.
1. Objects such as guardrails andconcrete walls running alongside the
vehicle.

1. Places where the width between guardrails or walls on each side of
the vehicle narrows.

1. The walls at the entrance and exits of tunnels, turnouts.

A BSM warning indicator light may
flash or the warning beep may be
activated several times when making a
turn at a city intersection.
Turn off the BSM while pulling a trailer
or while an accessory such as a bicycle
carrier is installed to the rear of the
vehicle. Otherwise, the radar’s radio
waves will be blocked causing the
system to not operate normally.
In the following cases, it may be difficult
to view the illumination/flashing of the
BSM warning indicator lights equipped
on the door mirrors.
Snow or ice is adhering to the door
mirrors.
The front door glass is fogged or
covered in snow, frost or dirt.
When Driving
i-ACTIVSENSE
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The rear side radar sensor of the BSM
may be regulated under the radio wave
related laws of the country where the
vehicle is driven. If this system is used
abroad, it may be necessary to turn off
the system.
Refer to Rear Side Radar Sensor on
page 4-208.
The system switches to the Rear Cross
Traffic Alert (RCTA) function when the
shift lever (manual transmission) or the
selector lever (automatic transmission)
is shifted to the reverse (R) position.
Refer to Rear Cross Traffic Alert
(RCTA) on page 4-114.
▼ Blind Spot Monitoring (BSM)
Warning Indicator Lights/Display
Indicator/Blind Spot Monitoring
(BSM) Warning Beep
The BSM system notifies the driver of the
presence of vehicles in adjacent lanes or at
the rear of the vehicle using the BSM
warning indicator light
, the warning sound
and the display indica tor while the systems
are operational.
BSM warning indicator lights
The BSM warning indicator lights are
equipped on the left and right door
mirrors. The warning indicator lights turn
on when a vehicle approaching from the
rear in an adjacent lane is detected.
When the ignition is switched ON, the
warning indicator light turns on
momentarily and then turns off after a few
seconds.
Function for cancelling illumination
dimmer
If the BSM warning i ndicator lights turn
on when the parking lights are turned on,
the brightness of the BSM warning
indicator lights is dimmed.
If the BSM warning i ndicator lights are
difficult to see due to glare from
surrounding brightness when traveling on
snow-covered roads or under foggy
conditions, press the dimmer cancellation
button to cancel the dimmer and increase
the brightness of BSM warning indicator
lights when they turn on.
Refer to Dashboard Illumination on page
4-18.
Display indicator
The detected approaching vehicle and
warning are displayed in the
multi-information display and active
driving display (vehicles with active
driving display).
Multi-information Display
When Driving
i-ACTIVSENSE
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