sensor MAZDA MODEL 3 4-DOOR 2015 Owner's Guide

4–75
When Driving
Brake
Laser Sensor Handling
The Smart City Brake Support (SCBS) laser sensor is installed at the t\
op of the windshield
near the rearview mirror.
Always keep the surface of the windshield around the laser sensor clean \
to assure proper
operation of the Smart City Brake Support (SCBS) system.
WARNING
As there is the possibility of eye damage occurring from the laser, always heed the
following precautions:


4–76
When Driving
Brake
Laser sensor radiation data
Maximum average power: 45 mW
Pulse duration: 33 ns
Wavelength: 905 nm
Divergence angle (horizontal×vertical): 28 degrees×12 degrees
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*Some models.4–90
When Driving
Mazda Radar Cruise Control (MRCC)
Mazda Radar Cruise Control (MRCC) *
The Mazda Radar Cruise Control (MRCC) system is designed to maintain headway control *1
according to the vehicle speed using a radar sensor to detect the distan\
ce to a vehicle ahead,
and by presetting the vehicle speed between 30 km/h (19 mph) and 145 k\
m/h (90 mph), the
driver is freed from having to constantly use the accelerator or brake p\
edals.
*1 Headway Control: Control of the distance between your vehicle and the ve\
hicle ahead detected by the Mazda Radar Cruise Control (MRCC) system.
Additionally, if your vehicle starts closing in on the vehicle ahead because, for ex\
ample, the
vehicle ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a suffi cient distance between the vehicles.
Use the Mazda Radar Cruise Control (MRCC) system on expressways and ot\
her highways
which do not require a lot of repeated acceleration and deceleration.
WARNING
Do not rely completely on the Mazda Radar Cruise Control (MRCC) system and always
drive carefully: The Mazda Radar Cruise Control (MRCC) system is designed to reduce load on the
driver, and although it maintains a constant vehicle speed, or specifi cally, it maintains
a constant distance between your vehicle and the detected vehicle ahead according to
the vehicle speed, the 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 suffi ciently 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 verify the safety of the surrounding area
and depress the brake pedal or accelerator pedal while keeping a safe distance from
vehicles ahead or on-coming vehicles.

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4–98
When Driving
Mazda Radar Cruise Control (MRCC)
NOTE
 y The Mazda Radar Cruise Control
(MRCC) system may be canceled during
rain, fog, snow or other inclement
weather conditions, or the front surface
of the radiator grille is dirty.
 y If the Mazda Radar Cruise Control
(MRCC) system has been temporarily
canceled, you can return to the
previously set vehicle speed by pressing
the RESUME switch after the following
conditions have been met.
 y All of the Mazda Radar Cruise
Control (MRCC) operation
conditions have been met.
 y A certain period of time has elapsed
since the system was automatically
canceled while driving for a long
time on a down slope.
 y If the SET / SET or RESUME switch
is pressed before a certain period of
time has elapsed since the system was
automatically canceled while driving
for a long time on a down slope,
“MRCC Not available” is displayed in
the display.
 y  If the OFF switch is pressed to cancel
the Mazda Radar Cruise Control
(MRCC), the system does not return
to the previously set speed even if the
RESUME switch is pressed.
Shift-up/Shift-down Request Display (Manual Transaxle)
The shift-up or shift-down request display
in the display of the instrument cluster
may be displayed while the Mazda
Radar Cruise Control (MRCC) system is
operating. When this occurs, shift gears
because the current gear position is not
appropriate.
Request Indication on display
Shift up
Shift down
NOTE
 y  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 Mazda Radar
Cruise Control (MRCC) system may
be automatically canceled or engine
damage could occur.
 y If the gears are not shifted down even
though the shift-down request indication
is displayed, the Mazda Radar Cruise
Control (MRCC) system may be
automatically canceled or engine
stalling could occur.
Radar Sensor Handling
The Mazda Radar Cruise Control (MRCC)
radar sensor is installed on the backside of
the radiator grille.
Refer to Radar Sensor on page 4-64 .
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*Some models.4–103
When Driving
Tire Pressure Monitoring System
Tire Pressure Monitoring System *
The Tire Pressure Monitoring System (TPMS) monitors the air pressure of all\
four tires. If
the air pressure of one or more tires is too low, the system warns the driver by indicating the
tire pressure monitoring system warning light in the instrument cluster \
and operating a beep
sound. The system monitors the tire pressures indirectly using the data sent fr\
om the ABS
wheel speed sensors.
To allow the system to operate correctly, the system needs to be initialized with the specifi ed
tire pressure (value on the tire pressure label). Follow the procedure\
and perform the
initialization.
Refer to Tire Pressure Monitoring System Initialization on page 4-106 .
The warning light fl ashes when the system has a malfunction.
Refer to Warning Lights on page 4-21 .
ABS wheel speed sensor
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*Some models.4–107
When Driving
Blind Spot Monitoring (BSM) System
Blind Spot Monitoring (BSM) System *
The Blind Spot Monitoring (BSM) system is designed to assist the drive\
r by monitoring
blind spots on both sides of the vehicle to the rear in certain situatio\
ns such as when
changing lanes on roads and freeways or reversing the vehicle from a par\
king garage.
The Blind Spot Monitoring (BSM) System consists of the Blind Spot Moni\
toring (BSM)
and Rear Cross Traffi c Alert (RCTA).
WARNING
Do not rely completely on the Blind Spot Monitoring (BSM) system. Always look over
your shoulder before changing lanes or reversing the vehicle from a parking garage:
The Blind Spot Monitoring (BSM) system can assist the driver in confi rming the safety of
the surroundings but is not a complete substitute. The driver is responsible for assuring
lane changes and other maneuvers. Always pay attention to the direction in which the
vehicle is traveling and the vehicle's surroundings.
NOTE
 y The detectability of the radar sensors has its limitations. The Blind Sp\
ot Monitoring
(BSM) System may not operate properly under the following conditions:
 y Ice, snow, or soil adheres to the rear bumper surface around the radar sensors. y During adverse weather conditions such as rain or snow, or under conditions where
water is sprayed.
 y The rear bumper area around the radar sensors is blocked by foreign material (such as
stickers or a bicycle carrier).
 y The radar sensors do not detect human, animal, shopping cart, bicycle, o\
r static objects
such as fences.
 y The radar sensors may not detect all types of vehicles around your vehicle, especially the
following types of vehicles:
 y Motorcycles y Vehicles with body shapes that radar may not refl ect such as a fl atbed trailer with no
cargo.
 y Vehicles with lower body height such as sports cars.
 y Although the system may detect objects on the road side such as parked vehicles or
guardrails and operate the warning light/beep, it does not indicate a malfun\
ction.
 y If the vehicle is driven on a road with less traffi c and few vehicles that the radar sensors
can detect, the system may pause (the Blind Spot Monitoring (BSM) OFF\
indicator light
in the instrument cluster fl ashes). However, it does not indicate a malfunction.
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4–10 8
When Driving
Blind Spot Monitoring (BSM) System
 y The following conditions may affect the visibility of the Blind Spot Mon\
itoring (BSM)
warning lights on the outside mirror, making it diffi cult to confi rm the illumination of the
lights:
 y Ice or snow adheres to the surface of the outside mirrors. y The door window glass is tinted.
 y The radar sensors are equipped inside the rear bumper (page 4-114 ). y Have the radar sensors inspected at an Authorized Mazda Dealer if any shock is applied
to the rear bumper, even in a minor accident. If the vehicle is driven with a damaged
radar sensor, the system may not operate properly resulting in an accident.
 y For repairs or paintwork around the radar sensors, or replacement of the bumper, consult
an Authorized Mazda Dealer.
 y The radar sensors of the Blind Spot Monitoring (BSM) system may be regulated under
the radio wave related laws of the country where the vehicle is driven. The sensors in this
system are approved for use in the U.S.A. (including territories), Canada, and Mexico\
.
If a vehicle with a Blind Spot Monitoring (BSM) system is driven in a \
country other
than the U.S.A., Canada, or Mexico, the system has to be turned off usin\
g the Blind Spot
Monitoring (BSM) OFF switch.
Blind Spot Monitoring (BSM)
The Blind Spot Monitoring (BSM) system monitors the detection areas on\
both sides of
the vehicle to the rear and when there are vehicles in the detection are\
a it notifi es the driver
by illuminating the Blind Spot Monitoring (BSM) warning light while th\
e vehicle speed is
about 10 km/h (6.2 mph) or faster and driving forward.
If the turn signal lever is operated to the side the Blind Spot Monitori\
ng (BSM) warning
light is illuminated, the Blind Spot Monitoring (BSM) warning light fl\
ashes and the system
warns the driver of the vehicle in the detection area using a BSM warnin\
g beep sound.
Detection areas
Your vehicle
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4–113
When Driving
Blind Spot Monitoring (BSM) System
BSM OFF Indicator Light
This indicator light illuminates for a few
seconds when the ignition is switched ON.
The BSM OFF indicator light illuminates
when the BSM system is turned off by
pressing the BSM OFF switch.
The indicator light fl ashes if the BSM
system has a malfunction. Consult an
Authorized Mazda Dealer.
NOTE
If the vehicle is driven on a road with less
traffi c and few vehicles that the radar
sensors can detect, the system may pause
(The BSM OFF indicator light in the
instrument cluster fl ashes). However, it
does not indicate a malfunction.
BSM OFF Switch
When the BSM OFF switch is pressed, the
BSM system turns off and the BSM OFF
indicator light illuminates.
Press the BSM OFF switch again to turn
on the BSM system. The BSM OFF
indicator light turns off.
NOTE
If the ignition is switched off with the BSM
system turned off, the system becomes
operable automatically when the ignition
is switched ON.
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4–114
When Driving
Blind Spot Monitoring (BSM) System
Care of Radar Sensors
The radar sensors are equipped inside the
rear bumper.
4–Door
Radar sensors
5–Door
Radar sensors
Always keep the bumper surface near the
radar sensor area clean so that the BSM
system operates normally.
Refer to Exterior Care on page 6-64 .
NOTE
 y The BSM OFF indicator light fl ashes
if the radar sensors cannot operate
normally. If the light remains fl ashing
after cleaning the bumper surface
near the radar sensor area, consult an
Authorized Mazda Dealer.
 y  For repairs or paintwork around the
radar sensors, or replacement of the
bumper, consult an Authorized Mazda
Dealer.
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*Some models.4–115
When Driving
Forward Obstruction Warning (FOW)
Forward Obstruction Warning (FOW) *
Forward Obstruction Warning (FOW) is a system which alerts the driver of a possible
collision using an indicator and warning sound in the instrument cluster\
while the vehicle
is being driven at about 15 km/h or faster (10 mph or faster) and the \
system's radar sensor
determines that your vehicle may hit a vehicle or obstruction ahead.
WARNING
Do not rely completely on the Forward Obstruction Warning (FOW) system and always
drive carefully: Forward Obstruction Warning (FOW) is only designed to reduce damage in the event of
a collision. The ability to detect an obstruction is limited depending on the obstruction,
weather conditions, or traffi c conditions. Therefore, if the accelerator pedal or brake
pedal is mistakenly operated it could result in an accident. Always verify the safety of the
surrounding area and depress the brake pedal or accelerator pedal while keeping a safe
distance from vehicles ahead or on-coming vehicles.
NOTE
 y  The Forward Obstruction Warning (FOW) system operates when all of the following
conditions are met:
 y The ignition is switched ON. y The Forward Obstruction Warning (FOW) system is on. y The vehicle speed is about 15 km/h (10 mph) or faster. y The relative speed between your vehicle and the vehicle or obstruction ahead \
is about
15 km/h (10 mph) — 145 km/h (90 mph).
 y The Forward Obstruction Warning (FOW) system may not operate under the following
conditions:
 y If there is the possibility of hitting only a part of a vehicle or obstruction \
ahead. y If the vehicle is accelerated rapidly and it comes close to a vehicle ah\
ead. y The DSC is malfunctioning. y The vehicle is driven at the same speed as the vehicle ahead. y The accelerator pedal is depressed. y The brake pedal is depressed. y The steering wheel is being operated. y The selector lever is being operated. y The turn signal is being used.
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