2019 MAZDA MODEL CX-30 engine

▼Setting the System
Operation conditions
Headway control function
The CTS operates when all of the following conditions are met.
x(Automatic transmission vehicle)
xThe vehicle speed is about 0 km/h (0 mph) to 200 km/h (125 mph)*1 /145
km/h (90 mph)*2.xThe selector lever is in the D or M position (manual mode).x(Manual transmission vehicle)
xThe vehicle speed is about 30 km/h (19 mph) to 200 km/h (125 mph)*1 /145
km/h (90 mph)*2.xThe shift lever is in a position other than the R or N position.xThe clutch pedal is not depressed.xThe CTS is operating.xThe headway control function of the Mazda Radar Cruise Control (MRCC) or
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go
function) is set to operable (if it was set to inoperable, set it to operable using the
personalisation function).
xThe brake pedal is not depressed.xThe parking brake is released (Electric Parking Brake (EPB) indicator light is turned
off).
xThere is no problem with the DSC.xAll the doors are closed.xThe driver's seat belt is fastened.
*1 European models*2 Except European models

NOTE
(Automatic transmission vehicle)
xUnder the following conditions, the CTS cannot be used when the vehicle speed is
30 km/h (19 mph) or slower.
xThere is a problem with the stop hold control function.xThere is a problem with the Electric Parking Brake (EPB).xThe CTS may not launch directly after the engine starts.

Steering assist function
The steering assist function operates when all of the following conditions are met.
xYour vehicle is moving and less than about 55 km/h (34 mph).
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Distance-between-vehicles
guideline
(at 80 km/h (50 mph) vehicle
speed)Indication on display
Indication on multi-information
displayIndication on active driving dis-
play
*1
Extremely short (about 25 m (82
ft))
*1 Displays a pop-up image when the CANCEL switch is operated.
NOTE
xThe distance-between-vehicles differs depending on the vehicle speed, and the
slower the vehicle speed, the shorter the distance.
xWhen the ignition is switched to ACC or OFF, the set distance-between-vehicles is
taken over automatically even when the engine is started again.

The function is temporarily cancelled.
Headway control function
When the following operations are performed, the headway control function is
temporarily cancelled and the CTS set indication (green) changes to the CTS standby
indication (white) at the same time.
xThe CANCEL switch is pressed one time.xThe brake pedal is depressed.x(Automatic transmission vehicle)
The selector lever is in the P, N, or R position.
x(Manual transmission vehicle)
The shift lever is in the R position.

In the following cases, the CTS cancel indication is displayed and a sound is
activated one time.
xThe DSC has operated.xThe Smart Brake Support (SBS) has operated.xThe vehicle is driven on a downslope for a long time.xThere is a problem with the system.xThe front radar sensor cannot detect target objects (during rain, fog, snow or other
inclement weather conditions, or when the radiator grille is dirty).
xThe parking brake is applied.xAny of the doors is opened.xThe driver's seat belt is unfastened.
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xThe operation frequency of the braking by the CTS control is high.x(Automatic transmission vehicle)
The parking brake is automatically applied during stop hold control.
x(Manual transmission vehicle)
xThe vehicle speed decreases below 25 km/h (15 mph).xThe shift lever is in the neutral position for a certain period of time.xThe clutch pedal is depressed for a certain period of time.xThe engine has stalled.

Steering assist function
If any of the following conditions occurs, the steering assist function is temporarily
cancelled.
xThe headway control function is cancelled.xWhite (yellow) lane lines cannot be detected or a vehicle ahead cannot be
recognised.
xYour vehicle speed is more than about 60 km/h (37 mph).xThe accelerator pedal is operated.xThe direction indicator lever is operated.xThe vehicle is being driven on a sharp curve.xThe width of a lane is excessively narrow or wide.xThe vehicle crosses a lane line.xThe driver takes his/her hands off the steering wheel.xThe steering wheel is operated abruptly.xThere is a problem with the system.xThe temperature in the Forward Sensing Camera (FSC) is too high or too low.xThe windscreen around the Forward Sensing Camera (FSC) is foggy.xThe windscreen around the Forward Sensing Camera (FSC) is blocked by an
obstruction, causing poor forward visibility.

NOTE
If you take your hands off the steering wheel (not holding the steering wheel), the
warning sound is activated and an alert is indicated on the multi-information display
and the active driving display.
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Request Indication on display
Shift up Shift Up to a Higher Gear
Shift down Shift Down to a Lower Gear
NOTE
xIf the gears are not shifted up even
though the shift-up request
indication is displayed, load will be
applied to the engine and the CTS
might be automatically cancelled or
engine damage could occur.
xIf the gears are not shifted down
even though the shift-down request
indication is displayed, the CTS
might be automatically cancelled or
engine stalling could occur.
▼Stop Hold Control (Automatic
Transmission)
While in headway control using the
CTS, your vehicle will stop when a
vehicle ahead stops. When the vehicle
is stopped and the stop hold control
operates, the CTS indicator light turns
on.
NOTE
xEven if the CTS is temporarily
cancelled during stop hold control,
the vehicle is held in its stopped
position.
xThe parking brake is automatically
applied and the vehicle is held in its
stopped position when 10 minutes
or longer have passed since the stop
hold control operated. When this
occurs, the CTS is temporarily
cancelled.
xIf the i-stop operation conditions are
met during stop hold control, the
engine stops even though the brake
pedal is not depressed.
Refer to i-stop on page 4-11.
xThe brake lights turn on during stop
hold control.

To resume driving
After the vehicle ahead starts moving
while your vehicle is stopped under
stop hold control, press the RES switch
or depress the accelerator pedal to
cancel the stop hold control and start
driving.
NOTE
xWhen you resume driving by pressing
the RES switch, your vehicle does not
start moving until the distance
between your vehicle and the vehicle
ahead lengthens to the
specified
distance or farther.
xThe engine restarts automatically
when any of the actions to resume
driving are performed while i-stop is
operating.
xIf the CTS is temporarily cancelled
during stop hold control, you cannot
resume driving by pressing the RES
switch when there are no vehicles in
front of your vehicle. Depress the
accelerator pedal and resume driving
the vehicle.
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xThe accelerator pedal is depressed
abruptly.
xThe brake pedal is being
depressed.
xThe steering wheel is being
operated.
xThe selector lever is being shifted.xThe direction indicator lever is
being operated.
xWhen warnings and messages,
such as a dirty windscreen, related
to the Forward Sensing Camera
(FSC) or front radar sensor are
being displayed on the
multi-information display.
xThe SBS may operate under the
following conditions.
xThere is an object in the road at
the entrance to a curve (including
guardrails and snow banks).
xPassing an approaching vehicle
while rounding a curve.
xWhen crossing a narrow bridge,
and passing through low gates,
narrow gates, car washing
machines, or tunnels.
xWhen passing through a toll gate.xWhen entering an underground
parking area.
xThere is a metal object, bump, or a
protruding object on the road.
xIf you suddenly come close to a
vehicle ahead.
xThere is an animal, wall, or tree.xNotifies the driver with a warning
indication on the multi-information
display and the active driving display
(vehicles with active driving display)
while the system is operating.
xIf a malfunction is detected or the
system temporarily stops the
function due to dirty sensors (such as
radar sensor or Forward Sensing
Camera (FSC)), the i-ACTIVSENSE
warning indication/warning light
turns on and a message is displayed
on the multi-information display.
xOn a manual transmission vehicle,
the engine stops if the clutch pedal is
not depressed when the vehicle is
stopped by the SBS brake operation.
xIf 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
When there is a possibility of a
collision with a vehicle ahead, the
collision 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
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xThe SBS-R system will operate under
the following conditions.
xThe engine is running.xThe shift lever (manual
transmission vehicle) or the
selector lever (automatic
transmission vehicle) is in the R
(reverse) position.
xi-ACTIVSENSE warning indication/
warning light is not displayed in the
multi-information display.
xThe vehicle speed is between
about 2 to 8 km/h (2 to 4 mph).
xThe SBS-R is not turned off.xThe DSC is not malfunctioning.xIn the following cases, the rear
ultrasonic sensor and rear camera
cannot detect obstructions and the
SBS-R may not operate.
xThe height of the obstruction is
low such as low walls or trucks
with low loading platforms.
xThe height of the obstruction is
high such as trucks with high
loading platforms.
xThe obstruction is small.xThe obstruction is thin such as a
signpost.
xThe surface of the obstruction is
not pointed vertically relative to
the vehicle.
xThe obstruction is soft such as a
hanging curtain or snow stuck to a
vehicle.
xThe obstruction is shaped
irregularly.
xThe obstruction is extremely close.xIn the following cases, the rear
ultrasonic sensor and rear camera
cannot detect obstructions correctly
and the
SBS-R may not operate.
xSomething is stuck on the bumper
near a rear ultrasonic sensor.
xThe brake or accelerator pedal is
operated.
xThere is another obstruction near
one obstruction.
xDuring inclement weather such as
rain, fog and snow.
xHigh or low humidity.xHigh or low temperaturesxStrong winds.xThe path of travel is not flat.xHeavy luggage is loaded in the
luggage compartment or on the
rear seat.
xObjects such as a wireless aerial,
fog light, or illuminated number
plate is installed near a rear
ultrasonic sensor.
xThe orientation of a rear ultrasonic
sensor has deviated for reasons
such as a collision.
xThe vehicle is affected by other
sound waves such as the horn,
engine noise, ultrasonic sensor of
another vehicle.
xIn 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.
xDriving on a steep slope.xWheel blocks.xHanging curtains, gate poles such
as at toll gates and railroad
crossing.
xWhen travelling near objects such
as foliage, barriers, vehicles, walls,
and fences along a road.
xWhen driving off-road in areas
where there is grass and forage.
xWhen passing through low gates,
narrow gates, car washing
machines, and tunnels.
xA trailer is connected.xA bright light source such as
sunlight hits the rear camera.
xThe surroundings are dark.
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xAn exterior accessory such as a
bicycle carrier is installed around a
rear ultrasonic sensor.
x(Manual transmission)
If the vehicle is stopped by the SBS-R
operation and the clutch pedal is not
depressed, the engine stops.
xWhen the system operates, the user
is notified by the multi-information
display.
xThe collision warning beep sounds
intermittently while the SBS-R brake
is operating.
xIf the vehicle is stopped by the SBS-R
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-R
brake is automatically released.
xIf a Mazda genuine trailer hitch is
used, the SBS-R is automatically
turned off.
xTurn off the SBS-R system while
pulling a trailer or while an accessory
such as a bicycle carrier is installed to
the rear of the vehicle.
▼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] (SBS-R) System Operation
The SBS-R can be changed to
inoperable.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
When the SBS-R is cancelled, the SBS
OFF indicator light turns on.
NOTE
xWhen the ignition is switched OFF
while the SBS-R is cancelled, the
SBS-R is automatically enabled the
next time the ignition is switched
ON.
xWhen the SBS-R is cancelled, the
Smart Brake Support [Rear Crossing]
(SBS-RC) is also cancelled.
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¾If cracks or damage caused by flying
gravel or debris is visible around a
rear radar and rear camera, stop
using the SBS-RC system
immediately and have your vehicle
inspected by an expert repairer (we
recommend an Authorised Mazda
Repairer). If the vehicle continues to
be driven with cracks or scratch
marks left around an ultrasonic
sensor, the system may operate
unnecessarily and cause an
unexpected accident.
Refer to Stopping the Smart Brake
Support [Rear Crossing] (SBS-RC)
System Operation on page 4-184.
¾Consult an expert repairer (we
recommend an Authorised Mazda
Repairer) for rear bumper
replacement.
Do not modify the suspension:
If the vehicle height or inclination is
changed, the
SBS-RC system may not
operate correctly because it cannot
detect obstructions correctly.
Do not apply a strong force to a rear
radar and rear camera:
When washing the vehicle, do not
spray highly pressurised water against a
rear radar and rear camera, or rub it
strongly. In addition, do not hit the rear
bumper forcefully when loading and
unloading cargo. Otherwise, the
sensors may not detect obstructions
correctly which could cause the
SBS-RC system to not operate
normally, or it could operate
unnecessarily.
NOTE
xThe SBS-RC system will operate
under the following conditions.
xThe engine is running.
xThe shift lever (manual
transmission vehicle) or the
selector lever (automatic
transmission vehicle) is in the R
(reverse) position.
xi-ACTIVSENSE warning indication/
warning light is not displayed in the
multi-information display.
xThe vehicle speed is under about
10 km/h (6 mph).
xThe vehicle speed of an
approaching vehicle is about 3
km/h (2 mph) or faster.
xThe SBS-R is not turned off.xThe DSC is not malfunctioning.xIn the following cases, the
i-ACTIVSENSE warning indication/
warning light turns on and operation
of the system is stopped. If the
i-ACTIVSENSE warning indication/
warning light remains illuminated,
have the vehicle inspected at an
expert repairer (we recommend an
Authorised Mazda Repairer) as soon
as possible.
xSome problem with the system
including the SBS-RC system.
xA large deviation in the installation
position of a rear side radar sensor
on the vehicle has occurred.
xThere is a large accumulation of
snow or ice on the rear bumper
near a rear side radar sensor.
xDriving on snow-covered roads for
long periods.
xThe temperature near the radar
sensors becomes extremely hot
due to driving for long periods on
slopes during the summer.
xThe battery voltage has decreased.xUnder the following conditions, the
rear side radar sensor cannot detect
target objects or it may be difficult to
detect them.
When Driving
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