2015 MAZDA MODEL 3 HATCHBACK sensor

4–75
When Driving
Switches and Controls
With auto-wiper control
Switch Position
Wiper operation
No. Type A Type B
Single wipe cycle (mist)
Auto control
Low speed
High speed
Auto-wiper control
When the wiper lever is in the
position, the rain sensor senses the amount
of rainfall on the windscreen and turns the
wipers on or off automatically (off—
intermittent—low speed—high speed).
The sensitivity of the rain sensor can be
adjusted by turning the switch on the
wiper lever.
From the centre position (normal), rotate
the switch downward for higher sensitivity
(faster response) or rotate it upward for
less sensitivity (slower response).
Higher sensitivity
Less sensitivitySwitch
Centre
position
CAUTION
  Do not shade the rain sensor by
adhering a sticker or a label on the
windscreen. Otherwise the rain
sensor will not operate correctly.
.B[EB@&'&&"@&EJUJPOJOEC







4–76
When Driving
Switches and Controls
CAUTION
 

 When the wiper lever is in the
position and the ignition is switched
ON, the wipers may move
automatically in the following cases:
 


 If the windscreen above the rain
sensor is touched or wiped with a
cloth.
 


 If the windscreen is struck with a
hand or other object from either
outside or inside the vehicle.
  Keep hands and scrapers clear of the
windscreen when the wiper lever is
in the
position and the ignition
is switched ON as fi ngers could be
pinched or the wipers and wiper
blades damaged when the wipers
activate automatically.
 If you are going to clean the
windscreen, be sure the wipers are
turned off completely (when it is
most likely that the engine is left
running) this is particularly important
when clearing ice and snow.
NOTE
  Switching the auto-wiper lever from
the
to the position while
driving activates the windscreen
wipers once, after which they operate
according to the rainfall amount.
  The auto-wiper control may not
operate when the rain sensor
temperature is about –10 °C (14 °F)
or lower, or about 85 °C (185 °F) or
higher.
NOTE
  If the windscreen is coated with
water repellent, the rain sensor may
not be able to sense the amount of
rainfall correctly and auto-wiper
control may not operate properly.
  If dirt or foreign matter (Such as
ice or matter containing salt water)
adheres to the windscreen above
the rain sensor or if the windscreen
is iced, it could cause the wipers to
move automatically. However, if the
wipers cannot remove this ice, dirt
or foreign matter, the auto-wiper
control will stop operation. In this
case, set the wiper lever to the low
speed position or high speed position
for manual operation, or remove the
ice, dirt or foreign matter by hand to
restore the auto-wiper operation.
  If the auto-wiper lever is left in the
position, the wipers could
operate automatically from the effect
of strong light sources,
electromagnetic waves, or infrared
light because the rain sensor uses an
optical sensor. It is recommended
that the auto-wiper lever be switched
to the
position other than when
driving the vehicle under rainy
conditions.
  The auto-wiper control functions can
be turned off.
 Refer to Personalisation Features on
page 9-16 .
.B[EB@&'&&"@&EJUJPOJOEC







*Some models.4–10 0
When Driving
i-ACTIVSENSE
i-ACTIVSENSE *
i-ACTIVSENSE is a collective term covering a series of advanced safety and driver support
systems which make use of a Forward Sensing Camera (FSC) and radar sensors. These
systems consist of active safety and pre-crash safety systems.
These systems are designed to assist the driver in safer driving by reducing the load on the
driver and helping to avert collisions or reduce their severity. However, because each system
has its limitations, always drive carefully and do not rely solely on the systems.
Active Safety Technology
Active Safety Technology supports safer driving by helping the driver to recognise potential
hazards and avert accidents.
Driver awareness support systems
Nighttime visibility
Adaptive Front Lighting System (AFS) ............................................................................ 4-103
High Beam Control System (HBC) .................................................................................. 4-104
Forward/rear detection
Lane Departure Warning System (LDWS) ....................................................................... 4-107
Rear Vehicle Monitoring (RVM) system .......................................................................... 4-114
Inter-vehicle distance recognition
Distance Recognition Support System (DRSS) ................................................................ 4-120
Driver Support System
Inter-vehicle distance
Mazda Radar Cruise Control (MRCC) ............................................................................. 4-123
Speed control
Adjustable Speed Limiter ................................................................................................. 4-133
.B[EB@&'&&"@&EJUJPOJOEC







4–101
When Driving
i-ACTIVSENSE
Pre-Crash Safety Technology
Pre-crash safety technology is designed to assist the driver in averting collisions or reduce
their severity in situations where they cannot be avoided.
Collision damage reduction in low vehicle speed range
Forward driving
Smart City Brake Support (SCBS) ................................................................................... 4-139
Collision damage reduction in medium/high speed range
Smart Brake Support (SBS) .............................................................................................. 4-145
Camera and Sensors
Forward sensing camera (FSC)
The Forward Sensing Camera (FSC) determines the conditions ahead of the vehicle while
travelling at night and detects traffi c lanes. The following systems also use the Forward
Sensing Camera (FSC).
 


 High Beam Control system (HBC)



 Lane Departure Warning System (LDWS)
The Forward Sensing Camera (FSC) is installed at the top of the windscreen near the
rearview mirror.
Refer to Forward Sensing Camera (FSC) on page 4-148 .
Radar sensor (front)
The radar sensor (front) functions by detecting the radio waves refl ected off a vehicle ahead
sent from the radar sensor. The following systems also use the radar sensor (front).
 


 Mazda Radar Cruise Control (MRCC)



 Distance Recognition Support System (DRSS)



 Smart Brake Support (SBS)
The radar sensor (front) is mounted behind the radiator grille.
Refer to Radar Sensor (Front) on page 4-150 .
Laser sensor (front)
The laser sensor (front) emits a near-infrared laser beam and receives the beam refl ected
off the refl ective surface of a vehicle in front, and the detected beam is then used for
measurement. The following systems also use the laser sensor (front).
 


 Smart City Brake Support (SCBS)
The laser sensor (front) is installed at the top of the windscreen near the rearview mirror.
Refer to Laser Sensor (Front) on page 4-153 .
.B[EB@&'&&"@&EJUJPOJOEC







4–102
When Driving
i-ACTIVSENSE
Radar sensors (rear)
The radar sensors (rear) function by detecting the radio waves refl ected off a vehicle
approaching from the rear or an obstruction sent from the radar sensors. The following
systems also use the radar sensors (rear).
 


 Rear Vehicle Monitoring (RVM) system
The radar sensors (rear) are installed inside the rear bumper, one each on the left and right
sides.
Refer to Radar Sensors (Rear) on page 4-155 .
.B[EB@&'&&"@&EJUJPOJOEC







4–115
When Driving
i-ACTIVSENSE
NOTE
  The rear vehicle monitoring system operates when all of the following conditions are
satisfi ed:




 The ignition is switched ON.



 The RVM switch is pressed and the RVM indicator light (green) in the instrument
cluster is illuminated.
 


 The vehicle speed is about 30 km/h (19 mph) or higher. 

 The rear vehicle monitoring system does not operate under the following conditions:




 The vehicle speed falls below 30 km/h (19 mph) even though the RVM indicator
light (green) is illuminated.
 


 The shift lever is shifted into reverse (R) and the vehicle moves in reverse. 

 In the following cases, the system illuminates the RVM warning light (amber) in the
instrument cluster and stops the operation of the system. If the RVM warning light
(amber) continues to illuminate, have the system inspected at an Authorised Mazda
Dealer as soon as possible:
 


 A malfunction in the system, including the RVM warning indicator light, is detected.



 The position of the radar sensors (rear) has changed signifi cantly. The direction
in which the radar sensors (rear) are pointed is factory-adjusted specifi c to the
installation conditions for each vehicle so that they detect approaching vehicles
correctly. If the direction of the radar sensors (rear) has deviated for some reason, it
needs to be readjusted.
 


 Large quantities of snow or ice are on the rear bumper near the radar sensors (rear).



 Driving on snow-covered roads for long periods.



 The temperature surrounding the radar sensors (rear) becomes extremely high when
the vehicle is driven up-hill for long periods under hot summer weather conditions.
 


 The battery voltage is low. 

 There is a limit to the detection capability of the radar sensors (rear). In the following
cases, the rear vehicle monitoring system's detection capability may weaken and not
operate normally:
 


 The rear bumper near the radar sensors (rear) is deformed.



 Snow, ice or mud adheres to the area near the radar sensors (rear) on the rear
bumper.
 


 Under certain weather conditions including rain, snow, or fog.
.B[EB@&'&&"@&EJUJPOJOEC







4–116
When Driving
i-ACTIVSENSE
NOTE
  It might be impossible or diffi cult for the radar sensors (rear) to detect the following:




 Small, two-wheeled vehicles, bicycles, pedestrians, and stationary objects on or at
the edge of the road.
 


 Vehicles with body shapes off of which radar may not refl ect such as unloaded
trailers with a low vehicle height and sports cars.
 


 A vehicle is in the detection area in an adjacent lane to the rear but it is not
approaching. The system makes determinations based on the radar detection data
from approaching vehicles.
 


 Another vehicle is travelling at the same speed alongside the vehicle for extended
periods.
 


 Vehicles approaching from the opposite direction.



 Another vehicle which your vehicle is attempting to pass is in an adjacent lane.



 A vehicle is in an adjacent lane which is extremely wide. The radar sensors (rear)
detection area is set according to the lane width of general freeways.
 
 In the following cases, the RVM warning indicator light and the warning chime may
not activate or they may be delayed:
 


 Another vehicle moves from a lane two lanes over to the adjacent lane.



 When driving on a steep incline.



 When going over a mountain pass.



 When the turning radius is small (cornering around sharp curves, roundabouts, or
intersections).
 


 There is a difference in height between vehicle lanes.



 Immediately after this system is turned on. 

 If the lane width is extremely narrow, a vehicle in an adjacent lane two lanes over may
be detected. The radar sensors (rear) detection area is set according to the lane width of
general freeways.
.B[EB@&'&&"@&EJUJPOJOEC







*Some models.4–120
When Driving
i-ACTIVSENSE
Distance Recognition Support System (DRSS) *
The Distance Recognition Support System (DRSS) measures the distance between your
vehicle and a vehicle ahead using a radar sensor while the vehicle speed is 30 km/h or faster
(19 mph or faster), and indicates a recommended distance to maintain between the vehicles.
Furthermore, if your vehicle approaches a vehicle ahead more closely than the appropriate
distance to maintain between the vehicles, the vehicle-ahead indication in the display is
fl ashed to advise the driver to keep a safer distance from the vehicle ahead.
WARNING
Do not rely completely on the Distance Recognition Support System (DRSS) and always
drive carefully:
The Distance Recognition Support System (DRSS) provides advice for safer driving and
notifi es the driver of a recommended, safer distance to maintain with a vehicle ahead.
The ability to detect a vehicle ahead is limited depending on the type of vehicle ahead,
the weather conditions, and the traffi c conditions. Therefore, if the accelerator and
brake pedals are not operated correctly it could lead to an accident. Always verify the
safety of the surrounding area and depress the brake pedal or accelerator pedal while
keeping a safer distance from vehicles ahead or on-coming vehicles.
NOTE
  The Distance Recognition Support System (DRSS) operates when all of the following
conditions are met:
 


 The ignition is switched ON.



 The Distance Recognition Support System (DRSS) is on.



 The selector lever is in a position other than reverse (R).



 The vehicle speed is 30 km/h or faster (19 mph or faster). 

 The objects which activate the system are 4-wheeled vehicles. 
 The Distance Recognition Support System (DRSS) may also operate in the presence of
motorcycles and bicycles.
  The Distance Recognition Support System (DRSS) system may not operate normally
under the following conditions:
 


 The Dynamic Stability Control (DSC) has a malfunction.



 The vehicle ahead is travelling at an extremely slow speed. 

 The system does not operate with the following objects:




 Vehicles approaching in the opposite direction.



 Stationary objects (stopped vehicles, obstructions)
.B[EB@&'&&"@&EJUJPOJOEC