
Forward Sensing Camera (FSC) (page
4-198)
Front radar sensor (page 4-202)
WARNING
Do not rely completely on the MRCC
with Stop & Go function:
The MRCC with Stop & Go function
system has detection limitations
depending on the type of vehicle
ahead and its conditions, the weather
conditions, and the road conditions.
Additionally, the system may be unable
to decelerate sufficiently to avoid
hitting the vehicle ahead if the vehicle
ahead applies the brakes suddenly or
another vehicle cuts into the driving
lane in front of you, which could result
in an accident.
Always drive carefully and verify the
surrounding conditions and depress
the brake pedal or accelerator pedal
while keeping a safe distance from
vehicles ahead or on-coming vehicles.
Do not use the MRCC with Stop & Go
function system in the following
locations. Using the MRCC with Stop
& Go function system at the following
locations may result in an unexpected
accident:
General roads other than highways
(Driving under these conditions
using the MRCC with Stop & Go
function system is not possible.)
Roads with sharp curves and where
vehicle traffic is heavy with
insufficient space between vehicles,
or roads where frequent and
repetitive acceleration and
deceleration occur (Driving under
these conditions using the MRCC
with Stop & Go function is not
possible.)
When entering and exiting
interchanges, service areas, and
parking areas of highways (If you exit
a highway while headway control is
in use, the vehicle ahead will no
longer be tracked and your vehicle
may accelerate to the set speed.)
Slippery roads such as ice or
snow-bound roads (Tires could spin
causing you to lose vehicle control,
or the stop hold control may not
operate.)
Long, descending slopes (to
maintain distance between vehicles,
the system automatically and
continuously applies the brakes
which could result in the loss of
brake power.)
Slopes with a steep gradient (The
vehicle ahead may not be detected
correctly, your vehicle may slide
while stopped by the stop hold
control, and it may accelerate
suddenly after it starts moving.)
Two-wheeled vehicles such as
motorcycles or bicycles are ahead.
For safety purposes, switch the MRCC
with Stop & Go function system off
when it is not being used.
Leaving the MRCC with Stop & Go
function system turned on when it is
not in use is dangerous as it could
operate unexpectedly, resulting in an
accident.
When Driving
i-ACTIVSENSE
4-128
CX-30_8JP5-EA-20K_Edition1_new 2020-7-22 15:50:09

The TJA may not be able to detect a
vehicle ahead depending on the type
of vehicle ahead and its conditions,
the weather conditions, and the road
conditions. Additionally, the system
might be unable to decelerate
sufficiently if a vehicle ahead applies
the brakes suddenly, another vehicle
cuts into the driving lane, or the difference in vehicle speed between
your vehicle and the vehicle ahead is
larger, which could result in an
accident. Check the surrounding
conditions and always drive carefully
while keeping a safe distance from
vehicles ahead and on-coming
vehicles.
For the purposes of safety, switch the
TJA off when it is not being used.
Leaving the TJA turned on when it is
not in use is dangerous as it could
operate unexpectedly, resulting in an
accident.
Do not use the TJA under the
following conditions. Otherwise, it
may result in an accident.
General roads other than
expressways or highways (Driving
under these conditions using the TJA
is not possible.)
Roads with sharp curves and where
vehicle traffic is heavy with
insufficient space between vehicles,
or roads where frequent and
repetitive acceleration and
deceleration occur (Driving under
these conditions using the TJA is not
possible). When entering and exiting
interchanges, service areas, and
parking areas of expressways (If you
exit an expressway while headway
control is in use, the vehicle ahead
will no longer be tracked and your
vehicle may accelerate to the set
speed).
Slippery roads such as icy or
snow-covered roads (Tires could spin
causing you to lose vehicle control,
or the stop hold control may not
operate.)
Long, descending slopes (to
maintain distance between vehicles,
the system automatically and
continuously applies the brakes
which could result in the loss of
brake power.)
Two-wheeled vehicles such as
motorcycles or bicycles are ahead.
(Automatic transmission vehicle)
Slopes with a steep gradient (The
vehicle ahead may not be detected
correctly, your vehicle may slip while
stopped by the stop hold control, or
it may accelerate suddenly after it
starts moving.)
Driving under bad weather
conditions (rain, fog , and snow).
The vehicle is driven on slippery
roads such as icy or snow -covered
roads and unpaved roads (Tires
could spin causing you to lose
vehicle control, or the stop hold
control may not operate.)
Tires of a different specified size are
used, such as a temporary spare tire.
Tires with insufficient tread are used.
The tire pressures are not adjusted to
the
specified pressure.
The vehicle is being used to tow a
camper or boat trailer.
Tire chains are used.
When Driving
i-ACTIVSENSE
4-138
CX-30_8JP5-EA-20K_Edition1_new 2020-7-22 15:50:09

The vehicle speed is between
about 2 to 8 km/h (2 to 4 mph).
The SBS-R is not turned off.The DSC is not malfunctioning.In the following cases, the rear
ultrasonic sensor and rear camera
cannot detect obstructions and the
SBS-R may not operate.
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 small.The obstruction is thin such as a
signpost.
The surface of the obstruction is
not pointed vertically relative to
the 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.In the following cases, the rear
ultrasonic sensor and rear camera
cannot detect obstructions correctly
and the SBS-R may not operate.
Something is stuck on the bumper
near a rear ultrasonic sensor.
The brake or accelerator pedal is
operated.
There is another obstruction near
one obstruction.
During inclement weather such as
rain, fog and snow.
High or low humidity.High or low temperaturesStrong winds.The path of travel is not
flat.Heavy luggage is loaded in the
luggage compartment or on the
rear seat.
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, ultrasonic sensor of
another vehicle.
In the following cases, a rear
ultrasonic sensor and rear camera
may detect something as a target
obstruction which could cause the
SBS-R system to operate.
There is a steep slope or bump.There are wheel blocks or a
curbstone.
There are hanging curtains, gate
poles such as at toll gates and
railroad crossing.
When traveling near objects such
as foliage, barriers, vehicles, walls,
and fences along a road.
When driving off-road in areas
where there is grass and forage.
When passing through low gates,
narrow gates, car washing
machines, and tunnels.
A trailer is connected.An exterior accessory such as a
bicycle carrier is installed around a
rear ultrasonic sensor.
(Manual transmission)
If the vehicle is stopped by the SBS-R
operation and the clutch pedal is not
depressed, the engine stops.
When the system operates, the user
is notified by the multi-information
display.
The collision warning beep sounds
intermittently while the SBS-R brake
is operating.
When Driving
i-ACTIVSENSE
4-159
CX-30_8JP5-EA-20K_Edition1_new 2020-7-22 15:50:09

(Manual transmission)
If the vehicle is stopped by theSBS-RC operation and the clutch
pedal is not depressed, the engine
stops.
When the system operates, the user
is notified by the multi-information
display.
The collision warning beep sounds
intermittently while the SBS-RC
brake is operating.
If the vehicle is stopped by the SBS-RC operation and the brake
pedal is not depressed, displaying in
meter “Emergency Braking Activated.
Depress Brake Pedal to Hold Stop”,
after about 2 seconds and the SBS-RC brake is automatically
released.
▼ Collision Warning
If there is a possibility of a collision, the
collision warning sound is activated
continuously and a warning is
displayed on the active driving display
and the multi-information display.
Multi-information display
1. “BRAKE!” message is displayed
Active driving display
1. “BRAKE!” message is displayed
▼ Stopping the Smart Brake Support
[Rear Crossing]
(SBS-RC) System
Operation
The SBS-RC can be changed to
inoperable.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
When the SBS-RC is canceled, the SBS
OFF indicator light turns on.
NOTE
When the SBS-RC is canceled, the
Smart Brake Support [Rear] (SBS-R) is
also canceled.
When Driving
i-ACTIVSENSE
4-164
CX-30_8JP5-EA-20K_Edition1_new 2020-7-22 15:50:09

▼Margin of Error Between Road Surface
on Screen and Actual Road Surface
There might be some margin of error between the road surface appearing on the
screen and the actual road surface. A margin of error in the perceived distance could
lead to an accident, therefore be aware of the following conditions which can more
easily produce errors in the perceived distance.
The vehicle tilts due to weight of passengers and cargo.
If the vehicle is tilted, obstructions picked up by a camera can appear farther or
closer than the actual distance from the vehicle.
Front camera
1. Obstruction
2. Margin of error
Side camera
1. Obstruction
2. Margin of error
Rear camera
1. Obstruction
2. Margin of error
When Driving
i-ACTIVSENSE
4-192
CX-30_8JP5-EA-20K_Edition1_new 2020-7-22 15:50:09

There is a steep up or down grade in the road at the front or rear of the vehicle
If there is a steep up or down grade in the road at the front or rear of the vehicle,
obstructions picked up by the camera can appear farther or closer than the actual
distance from the vehicle.
Front camera
1. Appears further than actual distance
2. Distance of obstruction being viewed on screen
3. Actual distance of obstruction from vehicle
4. Actual obstruction
5. Obstruction appearing on screen
6. Appears closer than actual distance
When Driving
i-ACTIVSENSE
4-193
CX-30_8JP5-EA-20K_Edition1_new2020-7-22 15:50:09

Side camera
1. Appears further than actual distance
2. Distance of obstruction being viewed on screen
3. Actual distance of obstruction from vehicle
4. Actual obstruction
5. Obstruction appearing on screen
6. Appears closer than actual distance
When Driving
i-ACTIVSENSE
4-194
CX-30_8JP5-EA-20K_Edition1_new2020-7-22 15:50:09

Rear camera
1. Appears further than actual distance
2. Distance of obstruction being viewed on screen
3. Actual distance of obstruction from vehicle
4. Obstruction appearing on screen
5. Actual obstruction
6. Appears closer than actual distance
NOTE
If the vehicle is on a slope, obstructions taken by the camera can appear farther or
closer than the actual distance from the vehicle.
Three-dimensional object at vehicle front or rear
Because the vehicle front end guide lines (side camera) or the distance guide lines
(rear camera) are displayed based on a flat surface, the distance to the
three-dimensional object displayed on the screen is different from the actual
distance.
When Driving
i-ACTIVSENSE
4-195
CX-30_8JP5-EA-20K_Edition1_new 2020-7-22 15:50:09