2021 MAZDA MODEL CX-3 sensor

(Canada)
Ignition PositionACC or OFF ON
Switch Position OFF
*1AUTOOFF*1AUTO
Headlights Off Off Off Off
Auto
*2*4Auto*3*4
On
Daytime running
lights Off Off Off Off
Off
Taillights
Parking lights
License plate lights
Side-marker lights Off
On
*5OnOn*5On
*1 The light switch returns to the AUTO position automatically.*2 During the daytime, the daytime running lights turn on automatically. During the nighttime, the headlights,
parking lights, taillights, and the license plate lights turn on automatically.
*3 During the daytime, the daytime running lights, parking lights, taillights, and the license plate lights turn on
automatically. During the nighttime, the headlights, park ing lights, taillights, and the license plate lights turn
on automatically.
*4 When the light switch is switched to the OFF position while the vehicle is stopped, all of the lights that are
turned on turn off. When the light switc h is switched from a position other than
to the position
while the vehicle is stopped, the daytime running lights or the headlights turn off. When starting to drive the
vehicle, the lights that are turned off turn on again.
*5 The lights are turned on continuously if the ignition is switched from ON to any other position with the lights
turned on. The lights are turned off when the driver's door is opened or 30 seconds have elapsed since the
lights turned on.
Auto-light control*
(Except Canada)
When the headlight switch is in the AUTO po sition and the ignition is switched ON, the
light sensor senses the surrounding lightness or darkness and automatically turns the
headlights, other exterior lights on or off (see chart above).
When Driving
Switches and Controls
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(Canada)
When the headlight switch is in a position other than
and the ignition is switched ON, the
light sensor senses the surr ounding lightness or darkness and automatically turns the
headlights and other exteri or lights on or off.
CAUTION
Do not shade the light sensor by adhering a st icker or a label on the windshield. Otherwise
the light sensor will not operate correctly.
 The light sensor also works as a rain sensor for the auto-wiper control. Keep hands and
scrapers clear of the windshield when the wiper lever is in the
position and the ignition
is switched ON as fingers could be pinched or the wipers and wiper blades could be
damaged when the wipers activa te automatically. If you are going to clean the windshield,
be sure the wipers are turned off completely when it is partic
ularly tempting to leave the
engine running. This is particularly important when clearing ice and snow.
NOTE
The headlights, other exterior lights and dashboard illumination may not turn off
immediately even if th e surrounding area becomes we ll-lit because the light sensor
determines that it is night time if the surrounding area is continuously dark for several
minutes such as inside long tunnels, traffic ja ms inside tunnels, or in indoor parking lots.
In this case, the lights turn off if the light switch is turned to the
position.
(Without auto headlight off function)
When the headlight switch is in the
position and the ignition is switched to ACC or
the ignition is switched off, the headlights, other exterior lights and dashboard
illumination will turn off.
The dashboard illumination can be adjusted by rotating the knob in the instrument cluster.
Also, the day/night mode can be changed by rotating the knob until a beep sound is heard.
To adjust the brightness of the dashboard illumination:
Refer to Dashboard Illumination on page 4-14.
When Driving
Switches and Controls
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Variable-speed intermittent wipers
Set the lever to the intermittent position
and choose the interval timing by rotating
the ring.

INT ringFast
Slow
With auto-wiper control

Switch Posi‐
tion Wiper operation
MIST Operation while pulling up lever OFF Stop
AUTO Auto control LO Low speedHI High speed
Auto-wiper control*
When the wiper lever is in the AUTO
position, the rain sensor senses the amount
of rainfall on the windshield and turns the
wipers on or off automatically
(off ―intermittent ―low speed― high
speed).

The sensitivity of the rain sensor can be
adjusted by turning the switch on the
wiper lever.
From the center posi tion (normal), rotate
the switch upward for higher sensitivity
(faster response) or ro tate it downward for
less sensitivity (slower response).

Higher sensitivity
Less sensitivitySwitch
Center
position
CAUTION
 Do not shade the rain sensor by adhering
a sticker or a label on the windshield.
Otherwise the rain sensor will not
operate correctly.
When the wiper lever is in the AUTO
position and the ignition is switched ON,
the wipers may move automatically in
the following cases:
When Driving
Switches and Controls
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If the windshield above the rain sensor
is touched or wiped with a cloth.
 If the windshield is struck with a hand
or other object from either outside or
inside the vehicle.
Keep hands and scrapers clear of the
windshield when the wi per lever is in the
AUTO position and the ignition is
switched ON as fingers could be pinched
or the wipers and wiper blades damaged
when the wipers activate automatically.
If you are going to clean the windshield,
be sure the wipers are turned off
completely (when it is most likely that the
engine is left running) this is particularly
important when clearing ice and snow.
NOTE
Switching the auto-wiper lever from the
OFF to the AUTO position while driving
activates the windshield wipers once,
after which they operate according to
the rainfall amount.
The auto-wiper control may not operate
when the rain sensor temperature is
about
－10 °C (14 °F) or lower, or
about 85 °C (185 °F) or higher.
If the windshield is coated with water
repellent, the rain sensor may not be
able to sense the amount of rainfall
correctly and the auto-wiper control
may not operate properly.
If dirt or foreign matter (such as ice or
matter containing salt water) adheres to
the windshield above the rain sensor, or
if the windshield is iced, it could cause
the wipers to move automatically.
However, if the wi pers cannot remove
this ice, dirt or foreign matter, the
auto-wiper control will stop operation.
In this case, set th e wiper lever to the
low speed position or high speed
position for manual operation, or
remove the ice, dirt or foreign matter by
hand to restore the auto-wiper
operation.
If the auto-wiper lever is left in the
AUTO position, the wipers could
operate automatically from the effect of
strong light sources, electromagnetic
waves, or infrared light because the rain
sensor uses an optical sensor. It is
recommended that the auto-wiper lever
be switched to the OFF position other
than when driving the vehicle under
rainy conditions.
(With auto-wiper control)
If the headlight switch and the
windshield wiper switch are in AUTO,
and the wipers are operated at low or
high speed by the auto wiper control for
several seconds, bad weather conditions
are determined and the headlights may
be turned on.
The auto-wiper control functions can be
turned off. Refer to Personalization
Features on page 9-9.
When Driving
Switches and Controls
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i-ACTIVSENSE*
i-ACTIVSENSE is a collective term covering a series of advanced safety and driver support
systems which make use of a Forward Sensing Camera (FSC) and radar sensors. These
systems consist of active safety and pre-crash safety systems.
These systems are designed to assist the driver in safer driving by reducing the load on the
driver and helping to avert collisions or reduce their severity. However, because each system
has its limitations, always drive carefull y and do not rely solely on the systems.
▼Active Safety Technology
Active Safety Technology supports safer driving
by helping the driver to recognize potential
hazards and avert accidents.
Driver awareness support systems
Nighttime visibility
Adaptive Front Lighting System (AFS)..................................................................... page 4-78
High Beam Control System (HBC)............................................................................ page 4-79
Left/right side and rear side detection
Lane Departure Warning Syst em (LDWS).................................................................page 4-82
Blind Spot Monitoring (BSM)................................................................................... page 4-87
Road sign recognition
Traffic Sign Recognition System (TSR). ................................................................... page 4-93
Inter-vehicle distance recognition
Distance Recogniti on Support System (DRSS)......................................................... page 4-99
Rear obstruction detection when leaving a parking space
Rear Cross Traffic Alert (RCTA).............................................................................page 4-101
Driver support systems
Inter-vehicle distance
Mazda Radar Cruise Control with St op & Go function (MRCC with Stop & Go
function)................................................................................................................... pag e 4-104
▼Pre-Crash Safety Technology
Pre-crash safety technology is designed to assi
st the driver in averting collisions or reduce
their severity in situations where they cannot be avoided.
When Driving
i-ACTIVSENSE
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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
▼ 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).
High Beam Control system (HBC)
Lane Departure Warning System (LDWS)
Traffic Sign Recognition System (TSR)
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)
Advanced Smart City Brake Support (Advanced SCBS)
Smart City Brake Support (SCBS)
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).
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)
Distance Recognition Support System (DRSS)
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).
When Driving
i-ACTIVSENSE
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Blind Spot Monitoring (BSM)
Rear Cross Traffic Alert (RCTA)
The radar sensors (rear) are installed inside the rear bumper, one each on the left and right
sides.
Refer to Radar Sensors (Rear) on page 4-134.
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i-ACTIVSENSE
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NOTE
The BSM will operate when all of the following conditions are met:
The ignition is switched ON.
The BSM OFF indicator light in the instrument cluster is turned off.
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 BSM OFF
switch indicator light is turned off.
The shift lever (manual transaxle)/selector lever (automatic transaxle) is shifted to R
position and the vehicle is reversing.
The turning radius is small (making a sharp turn, turning at intersections).
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.
Some problem with the system including the BSM warning indicator lights is detected.
A large deviation in the installation position of a radar sensor (rear) on the vehicle has
occurred.
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.
Driving on snow-covered roads for long periods.
The temperature near the radar sensors (rear) becomes extremely hot due to driving for
long periods on slopes during the summer.
The battery voltage has decreased.
Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be difficult to detect them.
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 radar sensors (rear) is set at the road width of expressways.
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.
A vehicle makes a lane change from a driving lane 2 lanes over to an adjacent lane.
Driving on steep slopes.
Crossing the summit of a hill or mountain pass.
When Driving
i-ACTIVSENSE
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