transmission MAZDA MODEL 3-SEDAN 2020 Service Manual

Operation conditions
The system operates when all of the
following conditions are met:
When your vehicle is driven at less than
about 10 km/h (6 mph).
(Automatic transmission)
The selector lever is in the D position.
(Manual transmission)
The shift lever is in a position other than
N or R.
When a vehicle approaches from the
front side of your vehicle at a vehicle
speed of about 5 km/h (3 mph) or faster.
FCTA operation
When your vehicle is stopped
When a vehicle is approaching, the system
notifies the driver that a vehicle is
approaching on the following display
(white arrow).
Multi-information display
Active driving display (vehicles with
active driving display)
360°view monitor (vehicles with
360°view monitor)
When your vehicle is being driven
If there is a possibili ty of a collision with
an approaching vehicle, a warning
indication is displayed on the following
display (amber arrow) and the warning
sound is activated at the same time.
Multi-information display
Active driving disp lay (vehicles with
active driving display)
360°view monitor (vehicles with
360°view monitor)
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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.
RCTA operation
1. The RCTA system operates when the shift lever (manual transmission) or the
selector lever (automatic transmission)
is shifted to the reverse (R) position.
2. If there is the poss ibility of a collision
with an approaching vehicle, the Blind
Spot Monitoring (BSM) warning
indicator lights flashes and the warning
beep is activated simultaneously.
Rear view monitor (vehicles 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
mirrors.
360°view monitor (vehicles with
360°view monitor)
The RCTA warning indication in the
360°view monitor also synchronizes
with the Blind Spot Monitoring (BSM)
warning indicator light on the door
mirrors.
Function for cancelling illumination
dimmer
If the BSM warning i ndicator lights turn
on when the parking lights are turned on,
the brightness of the BSM warning
indicator lights is dimmed.
If the BSM warning i ndicator lights are
difficult to see due to glare from
surrounding brightness when traveling on
snow-covered roads or under foggy
conditions, press the dimmer cancellation
button to cancel the dimmer and increase
the brightness of BSM warning indicator
lights when they turn on.
Refer to Dashboard Illumination on page
4-18.
NOTE
The system may operate under the
following conditions even if a vehicle is
not approaching.
An object that reflects the radio waves
of the radar such as a parked vehicle,
guardrail, or wall is directly next to
your vehicle.
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Mazda Radar Cruise
Control (MRCC) (Manual
Transmission)
*
▼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
front radar sensor 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.
Front radar sensor (page 4-204)
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 safe 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 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 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.)
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▼Shift-up/Shift-down Request Display
The shift-up or shift-down request display
might be displayed while the MRCC is
operating. When this occurs, shift gears
because the gear position is not
appropriate.
Request Indication on display
Shift up Shift Up to a Higher Gear
Shift down Shift Do wn to a Lower Gear
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 might be
automatically canceled or engine
damage could occur.
If the gears are not shifted down even
though the shift-down request indication
is displayed, the MRCC might be
automatically canceled or engine
stalling could occur.
Mazda Radar Cruise
Control with Stop & Go
function (MRCC with Stop & Go function) (Automatic
Transmission)
*
▼Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)
The MRCC with St
op & Go function
system is designed to maintain headway
control
*1 with a vehicle ahead according
to your vehicle's speed using a front radar
sensor 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 Mazda
Radar Cruise Control (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.
If the vehicle ahead stops while you are
following behind it, y our vehicle will stop
and be held stopped automatically (stop
hold control), and headway control will
resume when you resume driving the
vehicle such as by pressing the RES
switch.
Also refer to the fo llowing before using
the MRCC with Stop & Go function.
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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.The vehicle is driven on roads with lane
lines other than white (yellow) lines, such
as an expressway.

Do not get out of the vehicle while the stop
hold control is operating.
(Automatic transmission vehicle)
Getting out of the vehicle while the stop
hold control is operating is dangerous as
the vehicle may move unexpectedly and
result in an accident. Before getting out of
the vehicle, switch the TJA off, apply the
parking brake, and then shift the selector
lever to the P position.

CAUTION
Turn the system off when the vehicle is
running on a chassis roller.
Heed the following cautions so that the TJA
can operate normally.
 Turn the system off when the vehicle is
running on a chassis roller.
 Do not modify the vehicle's suspensions.
 Always use wheels of the specified size
for the front and rear wheels. Consult an
Authorized Mazda Dealer for tire
replacement.

NOTE
The headway control does not detect the
following as physical objects.
Vehicles approaching in the opposite
direction
Pedestrians
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Stationary objects (stopped vehicles,
obstructions)
If a vehicle ahead is traveling at an
extremely low speed, the system may not
detect it correctly.
If there is a structure on the road or an
object (such as a monorail) at a low
height off the ground in front of the
vehicle, the system may operate.
Therefore, do not use the TJA.
Do not use the TJA under conditions in
which close proximity warnings are
frequently activated.
If it is necessary to accelerate for a lane
change or 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 TJA is in use, any intended
engine braking does not occur even if
you shift the shift lever (manual
transmission) or the selector lever
(automatic transmission). If
deceleration is required, lower the
vehicle speed setting or depress the
brake pedal.
While braking by the TJA control is
operating, you might hear an operation
sound, however, this does not indicate a
problem.
The brake lights turn on while braking
by the TJA control is operating,
however, they may not turn on while the
vehicle is on a down slope at the set
vehicle speed or traveling at a constant
speed and following a vehicle ahead.
Under the following conditions, the TJA
may not be able to detect white (yellow)
lines or vehicles ahead correctly and the
TJA may not operate normally.
The forward sensing camera (FSC)
cannot recognize the area in front of
the vehicle due to soiling or fog.
The white (yellow) lane lines are less
visible because of dirt or paint
flaking.
White (yellow) lane lines or vehicles
ahead are less visible because of bad
weather (rain, fog, or snow).
The vehicle is driven on a temporary
lane or section with a closed lane
resulting from construction where
there might be multiple white (yellow)
lane lines, or they are interrupted.
The camera picks up an obscure line,
such as a temporary line being used
for construction, or because of shade,
unmelted snow, or grooves filled with
water.
The road surface is wet and shiny
after rain, or there are puddles on the
road.
Heavy luggage is loaded in the trunk/
luggage compartment or on the rear
seat causing the vehicle to tilt.
A vehicle in front of your vehicle is
running near a white (yellow) lane
line making it less visible.
The windshield is dirty or foggy.
The vehicle is driven through an
intersection, a junction, or a fork in
the road.
While white (yellow) lane lines cannot
be detected due to road or weather
conditions.
The surrounding brightness suddenly
changes such as when entering or
exiting a tunnel.
The illumination of the headlights is
weakened because of dirt or the
optical axis is deviated at night.
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▼Setting the System
Operation conditions
Headway control function
The TJA operates when all of th
e following conditions are met.
(Automatic transmission vehicle)
The vehicle speed is about 0 km/h (0 mph) to 145 km/h (90 mph).
The selector lever is in the D or M position (manual mode).
(Manual transmission vehicle)
The vehicle speed is about 30 km/h (19 mph) to 145 km/h (90 mph ).
The shift lever is in a position other than the R or N position.
The clutch pedal is not depressed.
The TJA is operating.
The 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 inope rable, set it to operable using the personalization function).
The brake pedal is not depressed.
The parking brake is released (E lectric Parking Brake (EPB) indicator light is turned off).
There is no problem with the DSC.
All the doors are closed.
The driver's seat belt is fastened.

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

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Steering assist function
The steering assist function operates when all of the following conditions are met.
Your vehicle is moving and less than about 56 km/h (35 mph).
White (yellow) lane lines on both sides are detected and you ar e driving near the center of
the lane, or your vehicle detects a vehicle ahead.
The steering wheel is not turned sharply.
The turn signal lever is not operated.
The headway control function is operating.
(Manual transmission vehicle)
The vehicle speed is about 30 km/h (19 mph) or faster.
NOTE
The steering assist function operates so that the vehicle remains near the center of the
driving lane, however, depending on conditions such as the road curvature, road slope and
undulations, and vehicle speed, th e function might not be able to keep the vehicle near the
center of the driving lane.
Setting method
1. CANCEL switch
2. RES switch
3. TJA switch

1. Press the TJA switch. The TJA standby indication (white) turns on. In addition, the T JA display indication is
displayed on the mu lti-information display at the same time.
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(To increase speed using accelerator pedal)
Depress the accelerator pedal and press the RES switch up (SET+ ) or down (SET-) at the
desired speed. If the switch is not operated, the system return s to the set speed after you
release your foot from the accelerator pedal.
NOTE
The warnings and brake control do not operate while depressing the accelerator pedal.
The lowest possible speed which can be set on the TJA is 30 km/h (19 mph).
(Automatic transmission vehicle)
The vehicle speed setting can be changed by operating the RES switch during stop hold
control.

Changing the distance between ve hicles during headway control
The distance-between-vehicles can be set to 4 levels; Long, medium, short, and extremely
short distance.
The distance-between-vehicles is set to a shorter distance by p ressing the CANCEL switch
down. The distance-between-vehicles is set to a longer distance by pressing the CANCEL
switch up.
Distance-between-vehicles guide‐ line
(at 80 km/h (50 mph) vehicle speed) Indication on display
Indication on multi-information display Indication on active driving dis‐
play
*1
Long (about 50 m (164 ft))
Medium (about 40 m (131 ft))
Short (about 30 m (98 ft))
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Distance-between-vehicles guide‐line
(at 80 km/h (50 mph) vehicle speed) Indication on display
Indication on multi-information display Indication 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
The distance-between-vehicles differs depending on the vehicle speed, and the slower the
vehicle speed, the shorter the distance.
When 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 canceled.
Headway control function
When the following operations are performed, the headway contro l function is temporarily
canceled and the TJA set indication (green) changes to the TJA standby indication (white) at
the same time.
The CANCEL switch is pressed one time.
The brake pedal is depressed.
(Automatic transmission vehicle)
The selector lever is in the P, N, or R position.
(Manual transmission vehicle)
The shift lever is in the R position.

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