2021 MAZDA MODEL CX-3 Owners Manual

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 4-126.
While driving the vehicle at a speed of about 30 km/h (19 mph) or more, the headlights are
switched 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 stre etlamps or on roads in well-lit cities and
towns.
The vehicle is driven at less than about 20 km/h (12 mph).
Forward Sensing
Camera (FSC)
The recognition distance of the
Forward Sensing Camera (FSC)
varies according to the
surrounding conditions.
The warning light turns on when the system has a malfunction.
Refer to Contact Authorized Mazda Dealer and Have Vehicle Inspected on page 7-29.
CAUTION

Do not adjust the vehicle he ight, 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 th e high beams and low beams manually if
necessary.
When Driving
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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 sufficient darkness such as at dawn or dusk.
When the 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 betw
een high and low
beams after the ignition is switched ON
and the headlight swit ch is in the AUTO
and high beam position.
The HBC determines that it is dark based
on the brightness of the surrounding area.
At the same time, the HBC indicator light
(green) in the instrument cluster
illuminates.

NOTE
When the vehicle speed is about 30 km/h
(19 mph) or more, the headlights
automatically switch to high beams
when there are no vehicles ahead or
approaching in the opposite direction.
When the vehicle speed is less than
about 20 km/h (12 mph), the HBC
switches the headlights to low beams.
The low beams may not switch to high
beams when cornering.
Operation of the HBC function can be
disabled. Refer to Personalization
Features on page 9-9.
▼ Manual Switching
Switching to low beams
Shift the lever to the low beam position.
The HBC indicator light (green) turns off.
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Switching to high beams
Turn the headlight switch to the
position.
The HBC indicator light (green) turns off
and the
is illuminated.
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Lane Departure Warning System (LDWS)*
The LDWS notifies the driver that the vehicle may be deviating from its lane.
The system detects the white or yellow lines on the traffic lane using the Forward Sensing
Camera (FSC) and if it determines that the vehicle may be deviating from its lane, it notifies
the driver using the active driving display (vehicles with active driving display), and by
flashing the LDWS warning light and activating the LDWS warning beep.
Use the LDWS when you drive the vehicle on roads with white or yellow lines.
Refer to Forward Sensing Camera on page 4-126.

Forward Sensing Camera (FSC)
The warning light illuminates when the system has a malfunction.
Refer to Warning Lights on page 4-21.
WA R N I N G
Do not use the LDWS under the following conditions:
The system may not operate adequately accordin g to the actual driving conditions, resulting
in an accident.
 Driving on roads with tight curves.
 Driving under bad weather conditions (rain, fog, and snow).
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The functions of the LDWS have limitations:
Always stay on course using the steering wheel and drive with care. The system is not
designed to compensate for a driver’s lack of caution and if you rely too much on the LDWS it
could lead to an accident. The driver is resp onsible for assuring lane changes and other
maneuvers. Always pay attention to the directi on in which the vehicle is traveling and the
vehicle’s surroundings.
CAUTION
Do not modify the suspension. If the vehicle he ight or the damping force of the suspensions is
changed, the LDWS may not operate correctly.
NOTE
If your vehicle deviates from its traffic lane, the LDWS operates (warning sound and
indicator light). Steer the vehicle adequately to drive the vehicle to the center of the lane.
When the turn signal lever is operated for a lane change, the LDWS warning is
automatically canceled. The LDWS warning becomes operable when the turn signal lever
is returned and the system detects the white or yellow lines.
If the steering wheel, accelerator pedal, or brake pedal is operated abruptly and the
vehicle moves close to a white or yellow line, the system determines that the driver is
making a lane change and the LDWS warning is automatically canceled.
The LDWS may not operate during the period immediately after the vehicle has deviated
from its lane and the LDWS has operated, or the vehicle deviates from its lane repeatedly
within a short period of time.
The LDWS does not operate if it does not det ect the white or yellow lines of the traffic
lane.
Under the following conditions, the LDWS may not be able to detect white or yellow lines
correctly and the LDWS may not operate correctly.
If an object placed on the dashboard is reflected in the windshield and picked up by the
camera.
Heavy luggage is loaded in the luggage compartment or on the rear seat and the
vehicle is inclined.
The tire pressures are not adjusted to the specified pressure.
When the vehicle is driven on the entry and exit to or from the rest area or tollgate of a
highway.
The white or yellow lines are less visi ble because of dirt or paint flaking.
The vehicle ahead is running near a white or yellow line and the line is less visible.
A white or yellow line is less visible be cause of bad weather (rain, fog, or snow).
The vehicle is driven on a temporary lane or section with a closed lane due to
construction.
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A misleading line is picked up on the road such as a temporary line for construction, or
because of shade, lingering snow, or grooves filled with water.
The surrounding brightness suddenly changes such as when entering or exiting a
tunnel.
The illumination of the headlights is weakened because of dirt or the optical axis is
deviated.
The windshield is dirty or foggy.
Back-light is reflecting from the road surface.
The road surface is wet and shiny after rain, or there are puddles on the road.
The shade of a guardrail parallel to a white or yellow line is on the road.
The width of a lane is excessively narrow or wide.
The road is excessively uneven.
The vehicle is shaken after hitting a road bump.
There are two or more adjacent white or yellow lines.
There are various road markings or lane markings of various shapes near an
intersection.
▼ When the System Operates
1. The system goes on operation standby
when the LDWS OFF switch is
pressed and the LDWS OFF indicator
light in the instrument cluster turns off.
For vehicles equipped with the active
driving display, the driving lane
(border lines) is indicated in the
display.
2. Drive the vehicle in the center of thedriving lane while the LDWS OFF
indicator light is turned off. The
system becomes operational when all
of the following conditions are met.
The vehicle is driven in the center of
the driving lane with the white or
yellow lines on the left and right
sides, or on either side.
The vehicle speed is about 70 km/h
(44 mph) or faster.
The vehicle is driven on a straight
road or road with gentle curves.
The LDWS does not operate in the
following cases:
The system cannot detect white or
yellow lines.
The vehicle speed is less than about
65 km/h (40 mph).
The vehicle is making a sharp turn.
The vehicle is making a curve at an
inadequate speed.
NOTE
The LDWS does not operate until the
system detects a white or yellow line on
either the left or right.
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When the system detects a white or
yellow line on one side only, the system
will activate the warning only when the
vehicle deviates on the side where the
white or yellow line is being detected.
The distance and warning sensitivity
(likelihood of a warning) which the
system uses to determine the possibility
of a lane departure can be changed.
Refer to Personalization Features on
page 9-9.
Auto cancel
In the following case s, the LDWS cancels
automatically and the LDWS warning
light in the instrument cluster turns on.
The temperature inside the camera is
high or low.
The windshield around the camera is
foggy.
The windshield around the camera is
blocked by an obstruction, causing poor
forward visibility.
The LDWS is enabled automatically when
the operation conditions are met, and the
LDWS warning light turns off.
Auto cancel warning
When the following operations are
performed, the LDWS de termines that the
driver intends to make a lane change and
the LDWS warning is canceled
automatically. The LDWS is enabled
automatically after the driver performs the
operation.
The steering wheel is operated abruptly.
The brake pedal is depressed abruptly.
The accelerator pedal is depressed
abruptly.
The turn signal lever is operated (after
the turn signal lever is returned, the
LDWS may not operate for about 3
seconds which is the period of time
required to make a lane correction).
NOTE
After about 30 seconds have elapsed with
the turn signal lever left operating, the
LDWS warning may operate if the vehicle
is close to a white or yellow line.
▼ Canceling the System
Press the LDWS OFF switch to cancel the
LDWS. The LDWS OFF indicator light
turns on.
▼Lane Departure Warning System
(LDWS) Warning
If the system determines that there is the
possibility of a lane departure, the LDWS
warning beep activates and the LDWS
warning light flashes. Operate the steering
wheel appropriately and steer the vehicle
to the center of the lane.
For vehicles equipped with the active
driving display, if there is the possibility of
a lane departure, the system indicates the
direction it determines that the vehicle is
deviating in the active driving display.
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Indication on display

NOTE
If the LDWS warning sound is set to
rumble
*1, the sound will be heard from
the vehicle speaker on the side which the
system determined the vehicle may be
deviating from its lane.
It may be difficult to hear the LDWS
warning beep depending on the
surrounding conditions such as outside
noise.
The volume of the LDWS warning sound
can be changed.
Refer to Personalization Features on
page 9-9.
The type of warning sound (rumble*1/
beep) on the LDWS can be changed.
Refer to Personalization Features on
page 9-9.
*1 A rumble strip is a series of grooves in the road pavement surface positioned
at specific intervals, and when the
vehicle passes over it a vibration and
rumble sound is produced which alerts
the driver that the vehicle is departing
from the lane.
The rumble sound is a reproduction of
the sound which occurs when a vehicle
passes over a rumble strip.

Rumble
Groove
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