steering MAZDA MODEL 3 SEDAN 2022 Service Manual

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

Steering assist function
If any of the following conditions occurs, the steering assist function is temporarily
canceled.
The headway control function is canceled.White (yellow) lane lines cannot be detected or a vehicle ahead cannot be
recognized.
Your vehicle speed is more than about 64 km/h (40 mph).The accelerator pedal is operated.The turn signal lever is operated.The vehicle is being driven on a sharp curve.The width of a lane is excessively narrow or wide.The vehicle crosses a lane line.The driver takes his/her hands off the steering wheel.The steering wheel is operated abruptly.There is a problem with the system.The temperature in the Forward Sensing Camera (FSC) is too high or too low.The windshield around the Forwar d Sensing Camera (FSC) is foggy.The windshield around the Forward Se nsing Camera (FSC) is blocked by an
obstruction, causing poor forward visibility.

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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.
Multi-information display
Active driving display
If the steering wheel is held lightly, or depending on the road conditions, the
system determines that you have released the steering wheel (not holding the
steering wheel) even if you are holding it, and an alert is indicated on the
multi-information display and the active driving display.

To r e s u m e o p e ra t i o n
If the TJA is temporarily canceled, it will resume operation at the previously set speed
by pressing the RES switch after all of the operation conditions have been met.
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NOTE
If the set speed is not indicated on the display, the system does not operate even if
the RES switch is pressed.
After the operation, the steering assist operation may not operate for a period of 5
seconds at the most until the lane lines are detected or a vehicle ahead is
recognized.

Turning off
When the TJA switch is pressed while the TJA is operating, the TJA turns off.
▼ Shift-up/Shift-down Request
Display (Manual Transmission)
The shift-up or shift-down request
display might be displayed while the
TJA 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 Down 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 TJA
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 TJA might
be automatically canceled or engine
stalling could occur.
▼ Stop Hold Control (Automatic
Transmission)
While in headway control using the
TJA, your vehicle will stop when a
vehicle ahead stops. When the vehicle
is stopped and the stop hold control
operates, the TJA indicator light turns
on.
NOTE
Even if the TJA is temporarily
canceled during stop hold control,
the vehicle is held in its stopped
position.
The 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 TJA is temporarily
canceled.
The brake lights turn on during stop
hold control.

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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
When 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.
If the TJA is temporarily canceled,
depress the accelerator pedal and
start driving the vehicle. If the TJA is
temporarily canceled, you cannot
resume driving by pressing the RES
switch when there are no vehicles in
front of your vehicle.
If the vehicle ahead starts moving
within 3 seconds after your vehicle is
stopped by the stop hold control,
headway control will continue even if
you do not resume driving your
vehicle, such as by depressing the
accelerator pedal.

Vehicle departure information
If you do not resume driving within a
few seconds after the vehicle ahead
starts moving during stop hold control,
the multi-information display
vehicle-ahead indication flashes to
urge the driver to resume driving. If you
do not resume driving after the
indicator light flashes, a sound is
activated to urge you to resume
driving.
Lane-keep Assist System
(LAS)
*
▼Lane-keep Assist System (LAS)
The LAS provides stee
ring assistance to
help the driver stay within the vehicle
lane if the vehicle might be deviating.
The forward sensing camera (FSC)
detects the white lines (yellow lines) of
the vehicle lane in which the vehicle is
traveling and if the system determines
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 displaying an alert on the
multi-information display. Use the
system when you drive the vehicle on
roads with white (yellow) lines such as
expressways and highways.
1. Forward sensing camera (FSC)
WARNING
Do not rely completely on the LAS:
 The LAS is not an automated 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.
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The functions of the LAS have
limitations. Always stay on course
using the steering wheel and drive
with care.
 Do not use the LAS under the
following circumstances, otherwise it
may result in an accident.
 The vehicle is driven on slippery
roads such as icy or snow-covered
roads, and unpaved roads.
 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.
CAUTION
Heed the following cautions so that
the LAS can operate normally.
Do not modify the vehicle's
suspensions.
 Always use tires of the specified type
and size for the front and rear
wheels. Consult an Authorized
Mazda Dealer for tire replacement.
NOTE
The system may not operate normally
under the following conditions.
The white (yellow) lane lines are less
visible because of dirt or paint
flaking.
White (yellow) lane lines 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 groovesfilled with water.
The surrounding brightness suddenly
changes such as when entering or
exiting a tunnel.
Back-light is reflected off the road
surface.
The road surface is wet and shiny
after rain, or there are puddles on
the road.
The width of a lane is excessively
narrow.
The vehicle is driven on roads with
tight curves.
Heavy luggage is loaded in the
trunk/luggage compartment or on
the rear seat causing the vehicle to
tilt.
The vehicle is driven through a fork in
the road or a junction.
The shade of a guardrail parallel to a
white (yellow) lane line is cast on the
road.
The illumination of the headlights is
weakened because of dirt or the
optical axis is deviated at night.
The road is excessively uneven.The vehicle is shaken after hitting a
road bump.
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.Strong light is directed from the front
of the vehicle (such as sunlight, or
headlights (high-beam) of
on-coming vehicles).
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▼System Operation
When the ignition is switched ON, the
i-ACTIVSENSE status symbol (warning/
risk avoidance support system) (white)
turns on and the system goes on
standby.
NOTE
If the i-ACTIVSENSE status symbol
(warning/risk avoidance support
system) (white) does not turn on, the
system is canceled using the
i-ACTIVSENSE OFF switch or the
personalization feature.
Operation conditions
When all of the following conditions
are met, the i-ACTIVSENSE status
symbol (warning/risk avoidance
support system) on the
multi-information display changes
from white to green and the system
becomes operational.
The vehicle speed is about 64 km/h
(40 mph) or faster.
The system detects white (yellow)
lane lines.
NOTE
When the system does not detect a
white (yellow) lane line on one side
only, the system does not operate on
the side that is not being detected.
When temporarily canceling the
system
The LAS goes on standby in the
following cases: The LAS operation is
automatically restored when the
system's operation conditions are met.
The system cannot detect white
(yellow) lane lines.
The vehicle speed is less than about
56 km/h (35 mph).
The turn signal lever is operated.The accelerator pedal is depressed
abruptly.
The TCS/DSC is operating.The TCS/DSC is turned off.The steering wheel is operated.The brake pedal is operated.
The function is temporarily stopped.
The LAS stops functioning in the
following cases:
The temperature in the forward
sensing camera (FSC) is too high or
too low.
The windshield around the forward
sensing camera (FSC) is foggy.
The windshield around the forward
sensing camera (FSC) is blocked by
an obstruction, causing poor forward
visibility.
Strong light (such as sunlight, or
headlights (high-beam) of
on-coming vehicles) is directed at
the forward sensing camera (FSC).
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System malfunction
If there is a problem with the system,
the i-ACTIVSENSE status symbol
(warning/risk avoidance support
system) (white) and the i-ACTIVSENSE
warning indication/warning light on
the multi-information display turns on
and a message is indicated.
Refer to i-ACTIVSENSE Status Symbol
(Warning/Risk Avoidance Support
System) on page 4-98.
▼Steering Wheel Operation Assist
When the system determines that the
vehicle might be deviating from its
lane, the steering wheel operation
assist operates.
The system notifies the driver that it
provided steering wheel operation
assistance on the multi-information
display and the active driving display.
Multi-information display (Basic
display)
Multi-information display
(i-ACTIVSENSE display)
Active driving display
NOTE
When the driver operates the
steering wheel while the steering
wheel operation assist is operating ,
the steering wheel operation
assistance is canceled.
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The vehicle is being towed or towing
another vehicle.
 The vehicle is driven on rough roads
such as in areas where there is grass
and foliage or off-road.
Refer to Stopping the Smart Brake
Support (SBS) System Operation on
page 4-177.
Forward detection function
The forward detection function is
designed to reduce damage in the
event of a collision with target objects
at the front.
The forward detection function detects
target objects (vehicles ahead,
pedestrians, and bicycles) using the
front radar sensor and the Forward
Sensing Camera (FSC). If there is a
possibility of your vehicle colliding with
a target object at the front, 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, the brake control is
performed to reduce damage in the
event of a collision. In addition, when
the driver depresses the brake pedal,
the brakes are applied firmly and
quickly to assist.

(Vehicles with Driver Monitoring
(DM))
If the system determines that the driver
is not paying attention to the road, it
activates the collision warning earlier
than normal.
Operation conditions
The forward detection function
operates when all of the following
conditions are met.
The ignition is switched ON.The SBS is on.(Object is vehicle ahead)
The vehicle speed is about 4 km/h
(3 mph) or higher.
(Object is a pedestrian or bicycle)
The vehicle speed is between about
10 and 80 km/h (6.3 to 49 mph).
The DSC does not operate.
NOTE
When any of the following
conditions is met, the forward
detection function may not operate.
If there is the possibility of hitting
only a part of a vehicle or
obstruction ahead.
You are driving your vehicle at the
same speed as the vehicle ahead.
When the driver deliberately
performs driving operations
(accelerator operation, steering
wheel operation).
The accelerator pedal is depressed
abruptly.
The brake pedal is depressed.The steering wheel is being
operated.
(Automatic transmission)
The selector lever is being shifted.
The turn signal lever is being
operated.
Warnings and messages, such as a
dirty windshield, related to the
Forward Sensing Camera (FSC) or
front radar sensor are being
displayed on the multi-information
display.
When any of the following
conditions is met, the forward
detection function may operate.
There is an object in the road at
the entrance to a curve (including
guardrails and snow banks).
Passing an approaching vehicle
while rounding a curve.
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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.
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.
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The camera cover is made of hard
plastic, therefore do not apply oil
film remover, organic solvents, wax,
or coating agents. If any such agent
gets on the camera cover, wipe it off
using a soft cloth immediately.
 Do not rub the camera lens
forcefully, or clean it with an abrasive
or hard brush. Otherwise, it could
scratch the camera lens and
negatively affect the images.
 If a camera lens is severely damaged
by flying gravel, have the camera
replaced. For camera replacement,
consult an Authorized Mazda Dealer.
 Consult an Authorized Mazda Dealer
for repair, painting , or replacement
of the front/rear camera, front/rear
bumper and door mirrors.
 Heed the following cautions to
assure that the 360°View Monitor
operates normally.
 Do not modify the vehicle
suspensions or lower/raise the
vehicle body, or both.
 Always use tires of the specified
type and size for the front and rear
wheels. Consult an Authorized
Mazda Dealer for tire replacement.
 When the display is cold, images
may leave trails or the screen might
be darker than usual, making it
difficult to check the vehicle
surroundings. Always confirm the
safety at the front and around the
vehicle visually when driving. The method for parking/stopping
the vehicle using the 360°View
Monitor differs depending on the
road circumstances/conditions and
the vehicle conditions. When and
how much you turn the steering
wheel will differ depending on the
situation, therefore always check the
vehicle surroundings directly with
your eyes while using the system.
Also, before using the system, always
make sure that the vehicle can be
parked/stopped in the parking/
stopping space.
NOTE
If there are water droplets, snow, or
mud on the camera lens, wipe it off
using a soft cloth. If the camera lens
is especially dirty, wash it
off with
mild detergent.
If the camera lens is touched or there
is any dirt on it, it could affect the
screen image. Wipe the lens using a
soft cloth.
If the area where the camera is
installed, such as the front/rear
bumper or door mirrors, has been
damaged in a vehicle accident, the
camera (position, installation angle)
may have shifted. Always consult an
Authorized Mazda Dealer to have
the vehicle inspected.
If the camera is subjected to
excessive changes in temperature
such as by pouring hot water on the
camera during cold weather, the
360°View Monitor may not operate
normally.
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