brake MAZDA MODEL MX-5 MIATA RF 2021 Service Manual

The functions of the LDWS have limitations:
Always stay on course using the steering wheel and drive with care. The system is not
designed to compensate for a driver’s lack of caution and if you rely too much on the LDWS it
could lead to an accident. The driver is res ponsible for assuring lane changes and other
maneuvers. Always pay attention to the direction in which the vehicle is traveling and the
vehicle’s surroundings.
CAUTION
Do not modify the suspension. If the vehicle height or the damping force of the suspensions is
changed, the LDWS may not operate correctly.
NOTE
If your vehicle deviates from its traffi c lane, the LDWS operates (warning sound and
indicator light). Steer the vehicle adequately to drive the vehicle to the center of the lane.
When the turn signal lever is operated for a lane change, the LDWS warning is
automatically canceled. The LDWS warning becomes operable when the turn signal lever
is returned and the system detects the white or yellow lines.
If the steering wheel, accelerator pedal, or brake pedal is operated abruptly and the
vehicle moves close to a white or yellow line, the system determines that the driver is
making a lane change and the LDWS warning is automatically canceled.
The LDWS may not operate during the period immediately after the vehicle has deviated
from its lane and the LDWS has operated, or the vehicle deviates from its lane repeatedly
within a short period of time.
The LDWS does not operate if it does not dete ct the white or yellow lines of the traffic
lane.
Under the following conditions, the LDWS may not be able to detect white or yellow lines
correctly and the LDWS may not operate correctly.
If an object placed on the dashboard is reflected in the windshield and picked up by the
camera.
Heavy luggage is loaded in the luggage compartment the vehicle is inclined.
The tire pressures are not adjusted to the specified pressure.
When the vehicle is driven on the entry and exit to or from the rest area or tollgate of a
highway.
The white or yellow lines are less visible because of dirt or paint flaking.
The vehicle ahead is running near a white or yellow line and the line is less visible.
A white or yellow line is less visible because of bad weather (rain, fog, or snow).
The vehicle is driven on a temporary lane or section with a closed lane due to
construction.
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Auto cancel
In the following cases, the LDWS cancels
automatically and the LDWS warning
light in the instrument cluster turns on.
The temperature inside the camera is
high or low.
The windshield around the camera is
foggy.
The windshield around the camera is
blocked by an obstruction, causing poor
forward visibility.
The LDWS is enabled automatically when
the operation conditions are met, and the
LDWS warning light turns off.
Auto cancel warning
When the following operations are
performed, the LDWS determines that the
driver intends to make a lane change and
the LDWS warning is canceled
automatically. The LDWS is enabled
automatically after the driver performs the
operation.
The steering wheel is operated abruptly.
The brake pedal is depressed abruptly.
The accelerator pedal is depressed
abruptly.
The turn signal lever is operated (after
the turn signal lever is returned, the
LDWS may not operate for about 3
seconds which is the period of time
required to make a lane correction).
NOTE
After about 30 seconds have elapsed with
the turn signal lever left operating, the
LDWS warning may operate if the vehicle
is close to a white or yellow line.
▼ Canceling the System
Press the LDWS OFF sw
itch to cancel the
LDWS. The LDWS OFF indicator light
turns on.
Vehicle lane display (vehicles with
multi-information display)
The vehicle lane lines are no longer
indicated in the multi -information display
when the LDWS is canceled.
NOTE
When the ignition is switched OFF, the
system status before it was turned off is
maintained. For exampl e, if the ignition is
switched OFF with the LDWS operable,
the system will be operable when the
ignition is switched ON the next time.
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▼Excessive Speed Warning
If the vehicle speed exceeds the speed limit sign displayed in
the multi-information display,
the area around the speed limit sign flashes 3 times in amber a nd the warning sound is
activated 3 times at the same time. If the vehicle speed contin ues to exceed the displayed
speed limit sign, the indication stops flashing and remains on. Check the surrounding
conditions and adjust the vehicle speed to the legal speed using the appropriate operation
such as depressing the brake pedal.
Instrument cluster Instrument cluster While 60 mph is displayed
50 mph is displayed
Vehicle driven at speed of 55 mph
The excessive speed warning is initially set to inoperable. If
you want to activate the
excessive speed warning, change the setting in the personalizat ion features. In addition, the
warning pattern and the warning activation timing differ depend ing on the setting contents.
Refer to the Settings section in the Mazda Connect Owner's Manual.
Warning pattern
Off: The excessive speed warning is not activated.
Visual: The area around the speed limit sign displayed in the display flashes 3 times in
amber, and if the vehicle speed continues to exceed the display ed speed limit sign, the
indication stops flashing and remains on.
Audio & Visual: The area around the speed limit sign displayed in the displ ay flashes 3
times in amber and the warning s ound is activated 3 times at the same time. If the vehicle
speed continues to exceed the displayed speed limit sign, the i ndication stops flashing and
remains on.
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Smart City Brake Support (SCBS)*
The SCBS system alerts the driver of a possible collision using an indication in the display
and a warning sound when the Forward Sensing Camera (FSC) detec ts a vehicle ahead and
determines that a collision with a vehicle ahead is unavoidable while the vehicle is being
driven at a vehicle speed of about 4 to 80 km/h (2 to 50 mph). In addition, the system
reduces damage in the event of a collision by operating the bra ke control (Smart City Brake
Support (SCBS) brake) when the system determines that a collisi on is unavoidable while the
vehicle is being driven at a vehicle speed of about 4 to 30 km/ h (2 to 18 mph). It may also
be possible to avoid a collision if the relative s peed between your vehicle and the vehicle in
front of you is less than about 20 km/h (12 mph). In addition, when the driver depresses the
brake pedal while the system is in the operation range at about 4 to 30 km/h (2 to 18 mph),
the brakes are applied firmly and quickly to assist. (Brake Ass ist (Smart City Brake Support
(SCBS) brake assist))

Forward Sensing
Camera (FSC)
WARNING
Do not rely completely on the SCBS system:
 The SCBS system is only designed to reduce da mage in the event of a collision. Over reliance
on the system leading to the accelerator pe dal or brake pedal being mistakenly operated
could result in an accident.
 The SCBS is a system which operates in respon se to a vehicle ahead. The system may not be
able to detect or react to 2- wheeled vehicles or pedestrians.
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CAUTION
In the following cases, turn the system off to prevent a mis-operation:
 The vehicle is being towed or when towing another vehicle.
 The vehicle is on a chassis roller.
 When driving on rough roads such as in areas of dense grass or off-road.
Refer to Stopping the Smart City Brake Support (SCBS) system Operation on page 4-102 on
how to turn off the SCBS system.
NOTE
The SCBS system will operate under the following conditions.
The engine is running.
The Smart City Brake Support (SCBS) system warning indication/warning light (amber)
does not illuminate.
(Rear-end coll ision warning)
The vehicle speed is about 4 to 80 km/h (2 to 50 mph).
(Brake control (Smart City Brake Support (SCBS) brake))
The vehicle speed is about 4 to 30 km/h (2 to 18 mph).
The SCBS system is not turned off.
Under the following conditions, the SCBS system may not operate normally:
The SCBS system will not operate if the driver is deliberately performing driving
operations (accelerator pedal and steering wheel).
If there is the possibility of pa rtial contact with a vehicle ahead.
The vehicle is driven on a slippery road surface such as wet roads or icy or snow-bound
roads.
The braking performance is adversely affected due to cold temperatures or wet brakes.
The vehicle is driven at the same speed as the vehicle ahead.
The accelerator pedal is depressed.
The brake pedal is depressed.
The steering wheel is being operated.
The selector lever is being operated.
In the following cases, the Forward Sensing Camera (FSC) determines that there is a
vehicle ahead and the SCBS may operate.
Objects on the road at the entrance to a curve.
Vehicles passing in the opposite lane while making a curve.
Metal objects, bumps, or protruding objects on the road.
When passing through a toll gate.
When passing through low gates, narrow gates, car washing machines, or tunnels.
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If you suddenly come close to a vehicle ahead.
2-wheeled vehicles, pedestrians, animals or standing trees.
Vehicle is driven with some of the tires having significant wear.
(Manual transmission)
If the vehicle is stopped by the Smart City Brake Support (SCBS) operation and the clutch
pedal is not depressed, the engine stops.
▼Smart City Brake Support (SCBS)
Indicator Light (Red)*
If the Smart City Bra
ke Support (SCBS) is
operating, the indicator light (red) flashes.

▼ Collision Warning*
If there is the possibili
ty of a collision with
a vehicle ahead, the beep sounds
continuously and a warning is indicated in
the multi-inform ation display.
NOTE
The operation distance and volume of the
collision warning can be changed. Refer
to the Settings se ction in the Mazda
Connect Owner's Manual.
▼ Automatic Brake Operation
Display*
The automatic brake operation display is
indicated on the multi-information display
after the SCBS is operated.
NOTE
The collision warning beep sounds
intermittently while the SCBS brake or
brake assist (SCBS brake assist) is
operating.
If the vehicle is stopped by the SCBS
operation and the brake pedal is not
depressed, the warning beep sounds 1
time after about 2 seconds and the SCBS
brake is automatically released.
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▼Stopping the Smart City Brake
Support (SCBS) System Operation
The SCBS system can be temporarily
deactivated.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
When the SCBS system is turned off, the
Smart City Brake Support (SCBS) OFF
indicator light turns on.

When the engine is restarted, the system
becomes operational.
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Forward Sensing Camera (FSC)*
Your vehicle is equipped with a Forward Sensing Camera (FSC). The Forward Sensing
Camera (FSC) is positioned near t he rearview mirror and used by the following systems.
High Beam Control System (HBC)
Lane Departure Warning System (LDWS)
Traffic Sign Recognition System (TSR)
Smart City Brake Support (SCBS)
Forward Sensing Camera (FSC)
The Forward Sensing Camera (FSC) determines the conditions ahead of the vehicle while
traveling at night and detects traffic lanes. The distance in w hich the Forward Sensing
Camera (FSC) can detect objects varies depending on the surroun ding conditions.
WARNING
Do not modify the suspension:
If the vehicle height or inclination is changed, the system will not be able to correctly detect
vehicles ahead. This will result in the system not operating normally or mistakenly operating,
which could cause a serious accident.
CAUTION
 Do not apply accessories, stickers or film to the windshield near the Forward Sensing
Camera (FSC).
If the area in front of the Forward Sensing Came ra (FSC) lens is obstructed, it will cause the
system to not operate correctly. Consequently, each system may not operate normally
which could lead to an unexpected accident.
 Do not disassemble or modify th e Forward Sensing Camera (FSC).
Disassembly or modification of the Forward Sensing Camera (FSC) will cause a malfunction
or mistaken operation. Consequently, each sy stem may not operate normally which could
lead to an unexpected accident.
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Heed the following cautions to assure the correct operation of the Forward Sensing Camera
(FSC).
 Be careful not to scratch the Forward Sensing Camera (FSC) lens or allow it to get dirty.
 Do not remove the Forward Sensing Camera (FSC) cover.
 Do not place objects on the dashboard which reflect light.
 Always keep the windshield glass around the camera clean by removing dirt or fogging.
Use the windshield defroster to remove fogging on the windshield.
 Consult an Authorized Mazda Dealer regardi ng cleaning the interior side of the
windshield around the Forw ard Sensing Camera (FSC).
 Consult an Authorized Mazda Dealer before performing repairs around the Forward
Sensing Camera (FSC).
 The Forward Sensing Camera (FSC) is installe d to the windshield. Consult an Authorized
Mazda Dealer for windshield repair and replacement.
 When cleaning the wind shield, do not allow glass cleaners or similar cleaning fluids to
get on the Forward Sensing Camera (FSC) le ns. In addition, do not touch the Forward
Sensing Camera (FSC) lens.
 When performing repairs around the rearv iew mirror, consult an Authorized Mazda
Dealer.
 Consult an Authorized Mazda Dealer regarding cleaning of the camera lens.
 Do not hit or apply strong force to the Forward Sensing Camera (FSC) or the area around
it. If the Forward Sensing Camera (FSC) is severely hit or if there are cracks or damage
caused by flying gravel or debris in the area around it, stop using the following systems
and consult an Authorized Mazda Dealer.
 High Beam Control System (HBC)
 Lane Departure Warning System (LDWS)
 Traffic Sign Recognition System (TSR)
 Smart City Brake Support (SCBS)
 The direction in which the Forward Sensing Camera (FSC) is pointed has been finely
adjusted. Do not change the installation posi tion of the Forward Sensing Camera (FSC) or
remove it. Otherwise, it could result in damage or malfunction.
 Always use tires for all wheels that are of the specified size, and the same manufacturer,
brand, and tread pattern. In addition, do no t use tires with significantly different wear
patterns on the same vehicle as the system may not operate normally.
 The Forward Sensing Camera (FSC) includes a function for detecting a soiled windshield
and informing the driver, however, depending on the conditions, it may not detect plastic
shopping bags, ice or snow on the windshield. In such cases, the system cannot accurately
determine a vehicle ahead and may not be able to operate normally. Always drive carefully
and pay attention to the road ahead.
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You change lanes and approach a vehicle ahead.
When driving extremely close to the target object.
Tire chains or a temporary spare tire is installed.
The vehicle ahead has a special shape. For example, a vehicle towing a trailer house or
a boat, or a vehicle carrier carrying a vehicle with its front pointed rearward.
If the Forward Sensing Camera (FSC) cannot operate normally due to backlight or fog,
the system functions related to the Forward Sensing Camera (FSC) are temporarily
stopped and the following warning lights turn on. However, this does not indicate a
malfunction.
High Beam Control System (HBC) warning light (amber)
Lane Departure Warning System (LDW S) warning indication/warning light
Smart City Brake Support (SCBS) warn ing indication/warning light (amber)
If the Forward Sensing Camera (FSC) cannot operate normally due to high temperatures,
the system functions related to the Forward Sensing Camera (FSC) are temporarily
stopped and the following warn ing lights turn on. However, this does not indicate a
malfunction. Cool down the area around the Forward Sensing Camera (FSC) such as by
turning on the air conditioner.
High Beam Control System (HBC) warning light (amber)
Lane Departure Warning System (LDW S) warning indication/warning light
Smart City Brake Support (SCBS) warn ing indication/warning light (amber)
If the Forward Sensing Camera (FSC) detects that the windshield is dirty or foggy, the
system functions related to the Forward Sensing Camera (FSC) are temporarily stopped
and the following warning lights turn on. Ho wever, this does not indicate a problem.
Remove the dirt from the windshield or press the defroster switch and defog the
windshield.
High Beam Control System (HBC) warning light (amber)
Lane Departure Warning System (LDW S) warning indication/warning light
Smart City Brake Support (SCBS) warn ing indication/warning light (amber)
If there are recognizable cracks or damage caused by flying gravel or debris on the
windshield, always have the windshield replaced. Consult an Authorized Mazda Dealer
for replacement.
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