2023 MAZDA MAZDA brake sensor

The rearward detection function
detects obstructions using the rear
ultrasonic sensors. In addition, if there
is the possibility of your vehicle
colliding with a target object at the rear
while you are driving in reverse, you
are notified of possible danger by a
warning sound and a warning
indication on the display.
Furthermore, if the possibility of a
collision increases, brake control is
performed to reduce damage in the
event of a collision.
WARNING
Always check the surrounding area
visually when reversing the vehicle:
The operation of the rearward
detection function has certain
limitations. Therefore, the function
might not operate or it might be
delayed even if there is a target object
at the rear of your vehicle. Always
make it your responsibility as a driver
to check the rear.
Operation conditions
The rearward detection function
operates when all of the following
conditions are met.
The engine is running.The SBS is on.(Automatic transmission)
The selector lever is in the R position.(Manual transmission)
The shift lever is in the R position.
The vehicle speed is about 2 km/h
(2 mph) to 8 km/h (4 mph).
There is no problem with the DSC.
NOTE
When any of the following
conditions is met, the rearward
detection function may not operate.
Directly after the engine starts.The height of the obstruction is
low such as low walls or trucks
with low loading platforms.
The height of the obstruction is
high such as trucks with high
loading platforms.
The obstruction is not as large as a
vehicle or wall.
The obstruction is thin such as a
signpost.
The surface of the obstruction is
not pointed vertically relative to
your vehicle.
The obstruction is soft such as a
hanging curtain or snow stuck to a
vehicle.
The obstruction is shaped
irregularly.
The obstruction is extremely close.When any of the following
conditions is met, the rearward
detection function may not operate
normally.
Snow, ice, or mud adheres to the
area around a rear ultrasonic
sensor.
The vehicle posture is unstable due
to sudden operation of the steering
wheel, accelerator pedal, or brake
pedal.
There is another obstruction near
one obstruction.
When Driving
i-ACTIVSENSE
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During inclement weather such as
rain, fog , and snow.
High or low humidity.High or low temperatures.Strong winds.The path of travel is not flat.Heavy luggage is loaded in the
luggage compartment or on the
rear seat and the vehicle is tilted.
Objects such as a wireless antenna,
fog light, or illuminated license
plate is installed near a rear
ultrasonic sensor.
The orientation of a rear ultrasonic
sensor has deviated for reasons
such as a collision.
The vehicle is affected by other
sound waves such as the horn,
engine noise, or rear ultrasonic
sensor of another vehicle.
When any of the following
conditions is met, the rearward
detection function may operate.
Reversing towards a steep
ascending slope.
There are grating, wheel blocks, a
road curb, or a bump.
There is a hanging curtain or
railroad crossing gate.
Reversing near objects such as
foliage, barriers, vehicles, walls, or
fences.
The vehicle is driven on rough
roads such as in areas where there
is grass and foliage or off-road.
When reversing through low gates,
narrow gates, car washing
machines, tunnels, or into a
mechanical parking garage.
A towing bar is installed or a trailer
is connected.
(Manual transmission)
On a manual transmission vehicle,
the engine stops if the clutch pedal is
not depressed when the vehicle is
stopped by the SBS brake operation.
If the vehicle is stopped by the SBS
brake operation and the brake pedal
is not depressed, the SBS brake is
automatically released after about 2
seconds.
Collision warning
If there is the possibility of your vehicle
colliding with a vehicle approaching
from the rear on the left or right, or
from the rear while you are driving in
reverse, a warning sound is activated
continuously and a warning is
displayed on the multi-information
display and the active driving display.
Multi-information display
1. “BRAKE!” message is displayed

Active driving display
*
1. “BRAKE!” message is displayed
NOTE
During brake control, the collision
warning sound is activated
intermittently.
Rear crossing
The Rear Crossing detection function is
designed to reduce the damage in the
event of a collision with a vehicle
approaching from the rear sides while
driving in reverse.
When Driving
i-ACTIVSENSE
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The Rear Crossing detection function
detects approaching vehicles using the
rear side radar sensors. If there is the
possibility of your vehicle colliding with
a vehicle approaching from the rear
sides while you are driving in reverse,
you are notified of possible danger by
a warning sound and a warning
indication on the display.
Furthermore, if the possibility of a
collision increases, brake control is
performed to reduce damage in the
event of a collision.
WARNING
Always check the surrounding area
visually when reversing the vehicle:
The operation of the Rear Crossing
detection function has certain
limitations. Therefore, the function
might not operate or it might be
delayed even if there is a vehicle
passing through the rear of your
vehicle. Always make it your
responsibility as a driver to check the
rear.
Do not rely completely on the Rear
Crossing detection function:
The Rear Crossing detection function
operates on vehicles while you are
driving in reverse. It will not operate on
walls, pedestrians, or animals.
Operation conditions
The Rear Crossing detection function
operates when all of the following
conditions are met.
The engine is running.The SBS is on.(Automatic transmission)
The selector lever is in the R position.
(Manual transmission)
The shift lever is in the R position.
The vehicle speed is about 10 km/h
(6.2 mph) or slower.
The vehicle speed of an approaching
vehicle is about 3 km/h (2 mph) or
faster.
There is no problem with the DSC.
NOTE
When any of the following
conditions is met, the i-ACTIVSENSE
warning indication/warning light is
turned on and the system operation
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.
There is a problem with the
system.
A large deviation in the installation
position of a rear side radar sensor
on the vehicle has occurred.
Snow, ice, or mud is adhering
around a rear side radar sensor.
The temperature around a rear side
radar sensor is high.
Driving on snow-covered roads for
long periods.
The battery voltage has decreased.When any of the following
conditions is met, the Rear Crossing
detection function will not detect
approaching vehicles or they may bedifficult to detect.
When Driving
i-ACTIVSENSE
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The rear side radar sensor
detection area is obstructed by a
nearby wall or parked vehicle.
(Reverse the vehicle to a position
where the radar sensor detection
area is no longer obstructed.)
1. Your vehicle
A vehicle is approaching directly
from the rear of your vehicle.
1. Your vehicle
The vehicle is parked on a slant.
1. Your vehicle
A vehicle is approaching from the
opposite direction on a steep
gradient.
1. Your vehicle
Directly after the engine starts.Just after the SBS operation has
been enabled using [Settings] in
Mazda Connect.
Radio wave interference from a
radar sensor equipped on a vehicle
parked nearby.
When any of the following
conditions is met, the Rear Crossing
may operate.
There is a hanging curtain or
railroad crossing gate.
Reversing near objects such as
foliage, barriers, vehicles, walls, or
fences.
The vehicle is driven on rough
roads such as in areas where there
is grass and foliage or off-road.
When reversing through low gates,
narrow gates, car washing
machines, or tunnels.
A towing bar is installed or a trailer
is connected.
(Manual transmission)
On a manual transmission vehicle,
the engine stops if the clutch pedal is
not depressed when the vehicle is
stopped by the SBS brake operation.
If the vehicle is stopped by the SBS
brake operation and the brake pedal
is not depressed, the SBS brake is
automatically released after about 2
seconds.
When Driving
i-ACTIVSENSE
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A pedestrian is in a dark location
such as during the night, or blends
into the background by wearing
clothes matching the background
color.Front Radar Sensor*
▼Front Radar Sensor
Your vehicle is equipped with a front
radar sensor.
The following systems also use the
front radar sensor.
Distance & Speed Alert (DSA)Mazda Radar Cruise Control
(MRCC)
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)
Traffic Jam Assist (TJA)Smart Brake Support (SBS) forward
drive detection
The front radar sensor functions by
detecting the radio waves reflected off
a vehicle ahead or an obstruction sent
from the radar sensor.
The front radar sensor is mounted
behind the front emblem.
1. Front radar sensor

If “Safety and Driver Support Systems
Temporarily Disabled. Front Radar
Obscured. Drive Safely” is displayed on
the multi-information display of the
instrument cluster, clean the area
around the front radar sensor.
When Driving
i-ACTIVSENSE
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The radar sensors are regulated by
the relevant radio wave laws of the
country in which the vehicle is
driven. If the vehicle is driven
abroad, authorization from the
country in which the vehicle is driven
may be required.Rear Side Radar Sensor*
▼Rear Side Radar Sensor
Your vehicle is equipped with rear side
radar sensor. The following systems
also use the rear side radar sensor.
Blind Spot Monitoring (BSM)Rear Cross Traffic Alert (RCTA)Smart Brake Support (SBS) reverse
drive detection
The rear side radar sensors emit radio
waves and detect the radio waves
reflected off a vehicle approaching
from the rear or an obstruction.
4–Door
1. Rear side radar sensor

5–Door
1. Rear side radar sensor

The rear side radar sensors are installed
inside the rear bumper, one on each
side.
When Driving
i-ACTIVSENSE
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Anything which generates ultrasonic waves such as another vehicle's horn, the
engine sound of a motorcycle, the air brake sound of a large-sized vehicle, or
another vehicle's sensors approaches the vehicle.
The vehicle is driven in heavy rain or in road conditions causing water-splash.A commercially-available fender pole or an antenna for a radio transmitter is
installed to the vehicle.
The vehicle is moving towards a tall or square curbstone, or a steep grade.An obstruction is too close to the sensor.The vehicle is moving towards an uneven wall or stairs.There are multiple obstructions.The vehicle is driven in a place with low ceilings.Obstructions under the bumper cannot be detected. Obstructions which are
lower than the sensor or thin may not be detected even though they were
detected once.
The following types of obstructions may not be detected:
Thin objects such as wire, rope or polesThings which absorb sonic waves easily such as cotton or snowAngular shaped objectsVery tall objects, and those which are wide at the topSmall, short objectsAlways have the system inspected at an Authorized Mazda Dealer if any shock is
applied to the bumpers, even in a minor accident. If the sensors are deviated, they
cannot detect obstructions.
The system may have a malfunction if a sound is not activated or the detection
indication is not displayed even when th e parking sensor OFF switch is pressed
and the parking sensor is operable. Have your vehicle inspected by an Authorized
Mazda Dealer.
The system may have a malfunction if th e indicator light does not turn on even
when the parking sensor OFF switch is turned on. Have your vehicle inspected by
an Authorized Mazda Dealer.
The system may have a malfunction if a message indicating a system malfunction is
displayed. Have your vehicle inspected by an Authorized Mazda Dealer.
A message may be displayed even when the ambient temperature is extremely
cold, or mud, ice, or snow adheres to the sensor area. Remove any foreign matter
from the sensor area.
When installing a trailer hitch, consult an Authorized Mazda Dealer.If a Mazda genuine trailer hitch is used, th e rear side of the parking sensor system
is automatically turned off.
When Driving
Pa r k i n g S e n s o r Sys te m
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▼TCS/DSC Indication/Indicator
Light (Turns on)
If the light stays on, the TCS, DSC or
the brake assist system may have a
malfunction and they may not operate
correctly. Take your vehicle to an
Authorized Mazda Dealer.
▼Air Bag/Seat Belt Pretensioner
System Warning Indication/
Warning Light
A system malfunction is indicated if the
warning light constantly
flashes,
constantly illuminates or does not
illuminate at all when the ignition is
switched ON. If any of these occur,
consult an Authorized Mazda Dealer
as soon as possible. The system may
not operate in an accident.
WARNING
Never tamper with the air bag/
pretensioner systems and always have
an Authorized Mazda Dealer perform
all servicing and repairs:
Self-servicing or tampering with the
systems is dangerous. An air bag/
pretensioner could accidentally
activate or become disabled causing
serious injury or death.
▼ Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Flashing)
If there is a problem with the TPMS or
the voltage of a tire pressure sensor
decreases, the TPMS warning light
flashes and a message is displayed on
the multi-information display. Have
your vehicle inspected by an
Authorized Mazda Dealer.
WARNING
Do not drive the vehicle at high
speeds if the TPMS warning light turns
on or flashes:
Driving the vehicle at high speeds
while the TPMS warning light is turned
on or flashing is dangerous because
the brake performance and the
steering wheel operability will be
reduced. If the vehicle is driven at high
speeds or the brakes are suddenly
applied, it could lead to an accident.
Gradually apply the brakes to lower the
vehicle's speed.
Do not ignore the TPMS warning light
when it is turned on or flashing:
Continuing to drive the vehicle while
ignoring the illumination/flashing of
the TPMS warning light is dangerous
because a tire may burst which could
lead to an accident. Take appropriate
measures as soon as possible.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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