warning light MAZDA MODEL CX-3 2021 Workshop Manual

Collision damage reduction in low vehicle speed range
Forward driving
Smart City Brake Support (SCBS).......................................................................... page 4-120
Advanced Smart City Brake Support (Advanced SCBS).........................................page 4-116
Collision damage reduction in medium/high speed range
Smart Brake Support (SBS)..................................................................................... page 4-123
â–¼ Camera and Sensors
Forward Sensing Camera (FSC)
The Forward Sensing Camera (FSC) detects lane indications and recognizes headlights,
taillights and city lights during nighttime drivin
g. In addition, it also detects the vehicle
ahead, pedestrians, or obstructions. The following systems also use the Forward Sensing
Camera (FSC).
ï‚·High Beam Control system (HBC)
ï‚·Lane Departure Warning System (LDWS)
ï‚·Traffic Sign Recognition System (TSR)
ï‚·Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)
ï‚·Advanced Smart City Brake Support (Advanced SCBS)
ï‚·Smart City Brake Support (SCBS)
ï‚·Smart Brake Support (SBS)
The Forward Sensing Camera (FSC) is installe d at the top of the windshield near the
rearview mirror.
Refer to Forward Sensing Camera (FSC) on page 4-126.
Radar sensor (front)
The radar sensor (front) functions by detecting the radio waves reflected off a vehicle ahead
sent from the radar sensor. The following sy stems also use the radar sensor (front).
ï‚·Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)
ï‚·Distance Recognition Support System (DRSS)
ï‚·Smart Brake Support (SBS)
The radar sensor (front) is mounted behind the radiator grille.
Refer to Radar Sensor (Front) on page 4-131.
Radar sensors (rear)
The radar sensors (rear) function by detecting the radio waves reflected off a vehicle
approaching from the rear or an obstruction sent from the radar sensors. The following
systems also use the radar sensors (rear).
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Adaptive Front Lighting System (AFS)*
The adaptive front lighting system (AFS) automatically ad justs the headlight beams to the
left or right in 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 co nditions are indicated by a warning.
Refer to Contact Authorized Mazda Dealer and Have Vehicle Inspected on page 7-29.
NOTE
The Adaptive Front Lighting System (AFS) func tion can be switched to operable/inoperable
using the personalization function.
Refer to Personalization Features on page 9-9.
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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:
ï‚·The system detects a vehicle or the headlights/lights of a vehicle approaching in the
opposite direction.
ï‚·The vehicle is driven on roads lined with stre etlamps or on roads in well-lit cities and
towns.
ï‚·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.
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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
ï‚·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.
ï‚·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.
ï‚·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.
ï‚·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.
ï‚·The LDWS does not operate if it does not det ect the white or yellow lines of the traffic
lane.
ï‚·Under the following conditions, the LDWS may not be able to detect white or yellow lines
correctly and the LDWS may not operate correctly.
ï‚·If an object placed on the dashboard is reflected in the windshield and picked up by the
camera.
ï‚·Heavy luggage is loaded in the luggage compartment or on the rear seat and the
vehicle is inclined.
ï‚·The tire pressures are not adjusted to the specified pressure.
ï‚·When the vehicle is driven on the entry and exit to or from the rest area or tollgate of a
highway.
ï‚·The white or yellow lines are less visi ble because of dirt or paint flaking.
ï‚·The vehicle ahead is running near a white or yellow line and the line is less visible.
ï‚·A white or yellow line is less visible be cause of bad weather (rain, fog, or snow).
ï‚·The vehicle is driven on a temporary lane or section with a closed lane due to
construction.
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ï‚·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.
ï‚·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.
ï‚·The temperature inside the camera is
high or low.
ï‚·The windshield around the camera is
foggy.
ï‚·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.
ï‚·The steering wheel is operated abruptly.
ï‚·The brake pedal is depressed abruptly.
ï‚·The accelerator pedal is depressed
abruptly.
ï‚·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.
â–¼ Canceling the System
Press the LDWS OFF switch to cancel the
LDWS. The LDWS OFF indicator light
turns on.
â–¼Lane 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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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.
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 the vehicle detection screen (vehicles with
active driving display).
If the turn signal lever is operated to signal a turn in the direction in which the BSM
warning indicator light is illuminated while the approaching vehicle is detected, the BSM
notifies the driver of possible danger by turnin g on the BSM warning indicator light, and by
activating the warning sound and the warning screen indicator display (vehicles with active
driving 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.
Detection areas
Your vehicle
WARNING
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.
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NOTE
ï‚·The BSM will operate when all of the following conditions are met:
ï‚·The ignition is switched ON.
ï‚·The BSM OFF indicator light in the instrument cluster is turned off.
ï‚·The vehicle speed is about 10 km/h (6.3 mph) or faster.
ï‚·The BSM will not operate under the following circumstances.
ï‚·The vehicle speed falls below about 10 km/h (6.3 mph) even though the BSM OFF
switch indicator light is turned off.
ï‚·The shift lever (manual transaxle)/selector lever (automatic transaxle) is shifted to R
position and the vehicle is reversing.
ï‚·The turning radius is small (making a sharp turn, turning at intersections).
ï‚·In the following cases, the BSM OFF indicator light turns on and operation of the system
is stopped. If the BSM OFF indicator light re mains illuminated, have the vehicle inspected
at an Authorized Mazda Dealer as soon as possible.
ï‚·Some problem with the system including the BSM warning indicator lights is detected.
ï‚·A large deviation in the installation position of a radar sensor (rear) on the vehicle has
occurred.
ï‚·There is a large accumulation of snow or ice on the rear bumper near a radar sensor
(rear). Remove any snow, ice or mud on the rear bumper.
ï‚·Driving on snow-covered roads for long periods.
ï‚·The temperature near the radar sensors (rear) becomes extremely hot due to driving for
long periods on slopes during the summer.
ï‚·The battery voltage has decreased.
ï‚·Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be difficult to detect them.
ï‚·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.
ï‚·A vehicle is traveling alongside your vehicle at nearly the same speed for an extended
period of time.
ï‚·Vehicles approaching in the opposite direction.
ï‚·A vehicle in an adjacent driving lane is attempting to pass your vehicle.
ï‚·A vehicle is in an adjacent lane on a road with extremely wide driving lanes. The
detection area of the radar sensors (rear) is set at the road width of expressways.
ï‚·In the following case, the flashing of the BS M warning indicator light, and the activation
of the warning sound and the warning screen indicator display may not occur or they may
be delayed.
ï‚·A vehicle makes a lane change from a driving lane 2 lanes over to an adjacent lane.
ï‚·Driving on steep slopes.
ï‚·Crossing the summit of a hill or mountain pass.
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ï‚·When there is a difference in the height between your driving lane and the adjacent
lane.
ï‚·Directly after the BSM system becomes operable by changing the setting.
ï‚·If the road width is extremely narrow, vehicles 2 lanes over may be detected. The detection
area of the radar sensors (rear) is set according to the road width of expressways.
ï‚·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.
Objects such as guardrails and concrete walls
running alongside the vehicle. Places where the width between guardrails or
walls on each side of the vehicle narrows.
The walls at the entrance and exits of tunnels,
turnouts.
ï‚·A BSM warning indicator light may flash or the warning beep and the warning screen
indicator display may be activated several times when making a turn at a city
intersection.
ï‚·Turn off the BSM while pulling a trailer or wh
ile 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.
ï‚·In the following cases, it may be difficult to view the illumination/flashing of the BSM
warning indicator lights equipped on the door mirrors.
ï‚·Snow or ice is adhering to the door mirrors.
ï‚·The front door glass is fogged or covered in snow, frost or dirt.
ï‚·The radar sensors (rear) of the BSM may be regulated under the radio wave related laws
of the country where the vehicle is driven. The sensors in this system are approved for use
in the U.S.A. (including territories), Canada, and Mexico. If a vehicle with a BSM is
driven in a country other than the U.S.A., Canada, or Mexico, the system has to be turned
off using the BSM OFF switch.
ï‚·The system switches to the Rear Cross Traffi c Alert function when the shift lever (manual
transaxle) or the selector lever (automatic transaxle) is shifted to the reverse (R) position.
Refer to Rear Cross Traffic Alert (RCTA) on page 4-101.
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â–¼Blind Spot Monitoring (BSM) Warning I
ndicator Lights/Blind Spot Monitoring
(BSM) Warning Beep
The BSM or Rear Cross Traffic Alert (RCTA) 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 indi cator (vehicles with active driving display)
(BSM) while the systems are operational.
BSM warning indicator lights
The BSM warning indicator lights are equipp ed 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.
Forward driving (BSM operation)
The BSM detects vehicles approaching from the rear and turns on the BSM warning
indicator lights equipped on the door mirrors according to the conditions. Additionally,
while a BSM warning indicator light is illumina ted, if the turn signal lever is operated to
signal a turn in the direction in which the BSM warning indicator light is illuminated, the
BSM warning indicator light flashes.
Reverse driving (Rear Cross Traffic Alert (RCTA) system operation)
The Rear Cross Traffic Alert (RCTA) system detects vehicles approaching from the left and
right of your vehicle and flashe s the BSM warning indicator lights.
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