warning MAZDA MODEL 3 HATCHBACK 2018 (in English) Repair Manual

(With rear view monitor)
The RCTA warning indication in the rearview monitor also synchronizes with the Blind
Spot Monitoring (BSM) warning indicator light on the door mirro rs.
WA R N I N G
Always check the surrounding area visually before actually putting the vehicle in reverse:
The system is only designed to assist you in checking for vehicles at the rear when putting the
vehicle in reverse. Due to certain limitations with the operation of this system, the Blind Spot
Monitoring (BSM) warning indicator lights may not flash or it might be delayed even though a
vehicle is behind your vehicle. Always make it your responsibility as a driver to check the rear.
NOTE
In the following cases, the Blind Spot Monitoring (BSM) OFF Indicator Light turns on
and operation of the system is stopped. If the Blind Spot Monitoring (BSM) OFF Indicator
Light remains illuminated, have the vehicle inspected at an Authorized Mazda Dealer as
soon as possible.
Some problem with the system including the Blind Spot Monitoring (BSM) warning
indicator lights has occurred.
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).
Driving on snow-covered roads for long periods.
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In the following cases, it may be difficult to view the illumination/flashing of the Blind
Spot Monitoring (BSM) warning indicator lights equipped on the door mirrors.
Snow or ice adheres to the door mirrors.
The front door glass is fogged or covered in snow, frost or dirt.
Turn off the RCTA system while pulling a trailer or while an accessory such as a bicycle
carrier is installed to the rear of the vehic le. Otherwise, the radio waves emitted by the
radar will be blocked causing the system to not operate normally.
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Mazda Radar Cruise Control (MRCC)*
The MRCC system is designed to maintain headway control*1 with a vehicle ahead
according to your vehicle's speed using a radar sensor (front) to detect the distance to the
vehicle ahead and a preset vehicle speed without you having to use the accelerator or brake
pedals.
*1 Headway Control: Control of the distance between your vehicle and the vehicle ahead
detected by the MRCC system.
Additionally, if your vehicle starts closing in on the vehicle ahead such as if the vehicle
ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a sufficient distance between the vehicles.
Also refer to the following before using the MRCC.
Radar sensor (front) (page 4-136)
WA R N I N G
Do not rely completely on the MRCC:
The MRCC 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, 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 safer distance from vehicles ahead or on-coming vehicles.
Do not use the MRCC system in the following locations, using the MRCC system at the
following locations may result in an unexpected accident:
 General roads other than highways (Driving under these conditions using the MRCC system
is not possible.)
 Roads with sharp curves and where vehicle tr affic is heavy and there is insufficient space
between vehicles.
 Roads where frequent and repeti tive acceleration and deceleration occur (Driving under
these conditions using the MRCC system is not possible).
 When entering and exiting interchanges, servic e 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 sp in causing you to lose vehicle
control, or the stop hold control may not operate.)
 Long, descending slopes (to maintain distan ce between vehicles, the system automatically
and continuously applies the brakes which could result in the loss of brake power.)
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Slopes with a steep gradient ( The vehicle ahea d may not be detected correctly, your vehicle
may slide while stopped by the stop hold cont rol, and it may accelerate suddenly after it
starts moving.)
For safety purposes, switch the MRCC system off when it is not being used.
CAUTION
If your vehicle is towed or you are towing something, switch the MRCC system off to prevent a
miss-operation.
NOTE
The MRCC system does not detect the following as physical objects.
Vehicles approaching in the opposite direction
Pedestrians
Stationary objects (stopped vehicles, obstructions)
If a vehicle ahead is traveling at an extremely low speed, the system may not detect it
correctly.
During headway control travel, do not set the system for detection of two-wheeled
vehicles such as motorcycles and bicycles.
Do not use the MRCC system under conditions in which close proximity warnings are
frequently activated.
During headway control travel, the system accelerates and decelerates your vehicle in
conjunction with the speed of the vehicle ahead. However, if it is necessary to accelerate
for a lane change or if the vehicle ahead brakes suddenly causing you to close in on the
vehicle rapidly, accelerate using the accelerator pedal or decelerate using the brake
pedal depending on the conditions.
While the MRCC system is in use, it does not cancel even if the selector lever (automatic
transaxle)/shift lever (manual transaxle) is operated and any intended engine braking will
not occur. If deceleration is required, lower the vehicle speed setting or depress the brake
pedal.
The sound of the automatic brakes operating may be heard, however, it does not indicate
a problem.
The brake lights turn on while the MRCC automatic braking is operating.
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▼Mazda Radar Cruise Control (MRCC) Display Indication
The MRCC setting status and operation conditions are indicated
on the active driving
display.
Vehicle ahead display
MRCC Distance
between vehicle
display
MRCC Set vehicle speed
▼ Close Proximity Warning
If your vehicle rapidly closes in
on the vehicle ahead because the vehicle ahead applies the
brakes suddenly while you are traveling in headway control, the warning sound activates
and the brake warning is indicated in the display. Always verif y the safety of the
surrounding area and depress the brake pedal while keeping a sa fer distance from the
vehicle ahead. Additionally, keep a safer distance from the veh icles behind you.
NOTE
In the following cases, the warnings and brakes may not operate even if your vehicle starts
closing in on the vehicle ahead.
You are driving your vehicle at the same speed as the vehicle ahead.
Directly after the MRCC system has been set.
Directly after the accelerator pedal is released.
Another vehicle cuts into the driving lane.
▼Setting the System
The MRCC system operates when all of the following conditions a
re met.
Vehicle speed is 30 km/h (19 mph) to 145 km/h (90 mph)
The MRCC is turned on.
The brake pedal is not depressed.
The parking brake is released (parking brake indicator light is turned off).
There is no problem with the DSC.
All the doors are closed.
The driver's seat belt is fastened.
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How to change the set vehicle speed
To accelerate/decelerate using the SET
switch
When you press the SET
switch, the
vehicle accelerates and when you press the
SET
switch, it decelerates.
Short press 1 km/h (1 mph)
Long press 10 km/h (5 mph)
NOTE
For example, the set vehicle speed is
changed by pressing the SET switch four
times as follows:
The vehicle speed accelerates or
decelerates by 4 km/h (4 mph).
To increase speed using accelerator
pedal
Depress the accelerator pedal and press
and release the SET
switch or SET
switch at the desired speed. If the switch is
not operated, the system returns to the set
speed after you release your foot from the
accelerator pedal.
CAUTION
The warnings and brake control do not
operate while the accelerator pedal is
depressed.
NOTE
When accelerating using the SET
switch while in headway control, the set
vehicle speed can be adjusted but
acceleration is not possible. If there is
no longer a vehicle ahead, acceleration
continues until reaching the set vehicle
speed. For the set vehicle speed, check
the set vehicle speed indication in the
display.
While depressing the accelerator pedal,
the color of the MRCC indication
changes from green to white.
Canceling the system
If any of the following operations is done,
the MRCC cancels temporarily, the
MRCC set indication (green) switches to
the MRCC main indication (white), and
the MRCC indicator light (green) turns off
at the same time.
The OFF/CAN switch is pressed.
The brake pedal is depressed.
The parking brake is applied.
(Automatic transaxle)
The selector lever i s in the P (Park), N
(Neutral), or R (R everse) position.
(Manual transaxle)
The shift lever is in the reverse (R)
position.
Any of the doors is opened.
The driver's seat belt is unfastened.

Under the following conditions, the
MRCC cancel indication is displayed in
the active driving display and a single
beep sound is heard.
The DSC has operated.
The Smart Brake Support (SBS) has
operated.
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▼Shift-up/Shift-down Request Display (Manual Transaxle)
The shift-up or shift-down reque
st display in the active driving display may be indicated
while the MRCC is operating. Whe n this occurs, shift gears because the gear position is not
appropriate.
Request Display
Shift up
Shift down
NOTE
If the gears are not shifted up even though the shift-up request indication is displayed, load
will be applied to the engine and the MRCC system may be automatically canceled or
engine damage could occur.
▼ Cruise Control Function
While this function is operating, the
headway control operation is canceled and
only the cruise control function operates.
The vehicle speed can be set more than
about 25 km/h (16 mph).
Use the cruise c
ontrol function on
expressways and other highways which do
not require a lot of repeated acceleration
and deceleration.
WA R N I N G
Do not use the cruise control function in
the following locations:
Otherwise, it could lead to an accident.
 Roads with sharp curves and where
vehicle
traffic is heavy and there is
insufficient space between vehicles.
(Driving under these conditions using the
cruise control function is not possible)
 Steep down slopes (Set speed may be
exceeded because
sufficient engine
braking cannot be applied)
 Slippery roads such as ice or snow-bound
roads ( Tires could spin causing you to
lose vehicle control)
Always drive carefully:
The warnings and brake control will not
operate after the headway control function
is canceled and the system is switched to
only the cruise control function. Depress
the brake pedal to decelerate according to
the surrounding conditions while keeping a
safer distance from the vehicle ahead and
always driving carefully.
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Lane-keep Assist System (LAS) & Lane DepartureWarning System (LDWS)
*
The LAS&LDWS alerts the driver th at the vehicle may be deviating from its lane and it
provides steering assistance to help the driver stay within the vehicle lanes.
The Forward Sensing Camera (FSC) detects the white lines (yello w lines) of the vehicle
lane in which the vehicle is traveling and if the system determ ines that the vehicle may
deviate from its lane, it operates the electric power steering to assist the driver's steering
operation. The system also alerts the driver by activating a la ne departure warning sound,
vibrating the steering wheel, and indicating an alert in the di splay. Use the system when you
drive the vehicle on ro ads with white (yellow) lines such as ex pressways and highways.
Refer to Forward Sensing Camera (FSC) on page 4-131.
Forward Sensing
Camera (FSC)
WA R N I N G
Do not rely completely on the LAS&LDWS:
 The LAS&LDWS is not an automatic driving system. In addition, the system is not designed
to compensate for a driver's lack of caution, and over-reliance on the system could lead to
an accident.
 The detection ability of the LAS&LDWS is limi ted. Always stay on course using the steering
wheel and drive with care.
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▼System Operation
If the LAS&LDWS OFF indicator li
ght in the instrument cluster turns off when the ignition
is switched ON, the system goes on standby.

If the LAS&LDWS OFF indicator li ght in the instrument cluster turns on when the ignition
is switched ON, press the LAS&LDWS OFF switch so that the syste m goes on standby.
Drive the vehicle in the center of the vehicle lane while the system is on standby. The
system becomes operational when all of the following conditions are met.
The engine is running.
The vehicle speed is about 60 km/h (37 mph) or faster.
The system detects white (yellow) lane lines.
(If the system only detects a wh ite (yellow) line on either the left or right the system only
operates for a departure in the direction being detected.)
The driving lane is neither narrow nor wide.

The LAS&LDWS goes on stand-by status in the following cases:
The system cannot detect white (yellow) lane lines.
The vehicle speed is less than about 60 km/h (37 mph).
The ABS/TCS/DSC is operating.
The DSC is turned off.
(If the DSC is turned off while the system is operational, a warning beep is heard and the
system goes on standby.)
The vehicle is making a sharp curve.
The steering wheel is operated abruptly.
The brake pedal is depressed.
The width of a lane is excessively narrow or wide.
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NOTE
The LAS&LDWS does not operate until the system detects white (yellow) lane lines on
either the left or right.
When the system detects a white (yellow) lane line on one side only, the system will not
operate the steering wheel operation assist and the warning for the lane line on the side
that is not being detected. The steering wheel operation assist and the warning is only for
a lane deviation on the side that is being detected.
If you take your hands off the steering wheel (not holding the steering wheel), the warning
sound is activated and an alert is indicated in the active driving display.

If the steering wheel is held lightly, or depending on the road conditions, the system may
detect that you have released the steering wheel (not holding the steering wheel) even if
you are holding it, and display a message in the active driving display.
The timing at which the lane departure warning is activated and the steering wheel
operation assist is performed varies.
The following settings for the LAS&LDWS can be changed. Refer to Personalization
Features on page 9-12.
Steering operation assist operational/non-operational
Cancel sensitivity (likelihood of steering assist)
Vehicle lane line display
When the LAS&LDWS detects white (yellow) lines on both the left and right sides and
becomes operational, the vehicle lane lines are indicated in th e active driving display.
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