2015 MAZDA MODEL 3 HATCHBACK wheel

*Some models.4–133
When Driving
i-ACTIVSENSE
Adjustable Speed Limiter *
The adjustable speed limiter is a function to prevent the vehicle from being driven at a
vehicle speed faster than a set speed. The vehicle speed is controlled to kept it below the set
speed even if the accelerator pedal is depressed.
The adjustable speed limiter can be set between 30 km/h (20 mph) and 200 km/h (125 mph).
The vehicle speed may exceed the set speed when the vehicle is driven on a down slope,
however, the system notifi es the driver by fl ashing the display and operating a warning
sound.
WARNING
Always turn off the system when changing drivers:
If the driver is changed and the new driver is unaware of the adjustable speed limiter
function, the vehicle may not accelerate when the driver depresses the accelerator
pedal, leading to an accident.
The system consists of the adjustable speed limiter display and the speed limiter switch on
the steering wheel.
CANCEL switch
Speed limiter switchSpeed limiter switch RESUME switch Cruise Control SystemMazda Radar Cruise Control (MRCC)
SET+/SET- switchCANCEL switch
RESUME switch
SET+/SET- switch
Active Driving Display Display in the instrument cluster
With multi
information displayWithout multi
information display
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4–14 0
When Driving
i-ACTIVSENSE
WARNING
Do not rely on the Smart City Brake Support System (SCBS) as a substitute for safer
driving:
The Smart City Brake Support (SCBS) system cannot compensate for unsafe and
reckless driving, excessive speed, tailgating (following another vehicle too closely), and
driving on slippery roads such as wet, snowy, and icy roads (reduced tyre friction and
road contact because of water on the road surface). You can still have an accident.
Do not rely completely on the Smart City Brake Support (SCBS) system:
 
 The Smart City Brake Support (SCBS) system is only designed to reduce damage in
the event of a collision. Over reliance on the system leading to the accelerator pedal
or brake pedal being mistakenly operated could result in an accident.
  The Smart City Brake Support (SCBS) is a system which operates in response to a
vehicle ahead. The system may not be able to detect or react to 2-wheeled vehicles or
pedestrians.
  The laser sensor (front) for the Smart City Brake Support (SCBS) system is installed
near the rearview mirror. To assure the correct operation of the Smart City Brake
Support (SCBS), heed the following cautions.
 

 
 Do not apply stickers to the surface of the windscreen near the laser sensor (front)
(including transparent stickers). Otherwise, the laser sensor (front) may not be
able to detect vehicles ahead which could result in an accident.
 

 
 Do not apply coating agent to the windscreen. Otherwise, the laser sensor (front)
may not be able to detect vehicles or obstructions in front which could result in an
accident.
 

 
 Do not disassemble the laser sensor (front).


 
 If cracks or damage caused by fl ying gravel or debris is visible near the
laser sensor (front), stop using the Smart City Brake Support (SCBS) system
immediately and have your vehicle inspected by an expert repairer, we recommend
an Authorised Mazda Repairer. If the vehicle continues to be driven with cracks or
scratch marks left on the windscreen near the laser sensor (front), the system may
operate unnecessarily and cause an unexpected accident.
  Refer to Stopping The Smart City Brake Support (SCBS) System Operation on
page 4-144 .
 

 
 When replacing the windscreen wipers or windscreen, consult an expert repairer,
we recommend an Authorised Mazda Repairer.
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 Smart City Brake Support (SCBS) system
not operating normally or mistakenly operating, which could cause a serious accident.
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4–141
When Driving
i-ACTIVSENSE
WARNING
Turn off the Smart City Brake Support (SCBS) when the vehicle is running on a chassis
roller or being towed:
Turn off the Smart City Brake Support (SCBS) system to prevent mistaken operation
when the vehicle is running on a chassis roller or being towed. See the next page on
how to turn off the Smart City Brake Support (SCBS).
Refer to Stopping The Smart City Brake Support (SCBS) System Operation on page
4-144 .
CAUTION
  When driving off-road in areas where there is grass or forage, it is recommended that
the Smart City Brake Support (SCBS) system be turned off.
  Always use tyres for all wheels that are of the specifi ed size, and the same
manufacturer, brand, and tread pattern. In addition, do not use tyres with signifi cantly
different wear patterns on the same vehicle as the Smart City Brake Support (SCBS)
system may not operate normally.
  The laser sensor (front) includes a function for detecting a soiled windscreen and
informing the driver, however, depending on the conditions, it may not detect plastic
shopping bags, ice or snow on the windscreen. 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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4–142
When Driving
i-ACTIVSENSE
NOTE
  The Smart City Brake Support (SCBS) system will not operate if the driver is
deliberately performing driving operations (accelerator pedal and steering wheel).
  The Smart City Brake Support (SCBS) system will operate under the following
conditions.
 


 The engine is running.



 The Smart City Brake Support (SCBS) warning light (amber) does not illuminate.



 The vehicle speed is between about 4 to 30 km/h (2 to 18 mph).



 The Smart City Brake Support (SCBS) system is not turned off.



 The DSC operation is not turned off using the DSC OFF switch.



 The DSC is not malfunctioning. 

 The Smart City Brake Support (SCBS) detects a vehicle ahead by emitting a near-
infrared laser beam and receiving the beam refl ected off the refl ector of the vehicle
ahead, and then using it for the measurement. Consequently, the Smart City Brake
Support (SCBS) may not operate under the following conditions:
 


 Refl ection of the laser is poor due to the shape of the vehicle ahead.



 The vehicle ahead is signifi cantly dirty.



 Under bad weather condition, such as rain, fog and snow.



 The window washer is being used or the windscreen wipers are not used when it's
raining.
 


 The windscreen is dirty.



 The steering wheel is turned completely left or right, or the vehicle is accelerated
rapidly and comes close to the vehicle ahead.
 


 Trucks with low loading platforms and vehicles with an extremely low or high
profi le.




 Vehicles with certain shapes such as a vehicle carrier. 

 Under the following conditions, the Smart City Brake Support (SCBS) system may not
operate normally.
 


 Heavy luggage is loaded in the luggage compartment or on the rear seat.



 If there is the possibility of partial contact with a vehicle ahead.



 When driving on continuously curving roads, and entering and exiting exits.



 Elongated luggage or cargo is loaded onto installed roof rails and covers the laser
sensor (front).
 


 Exhaust gas from the vehicle in front, sand, snow, and water vapour rising from
manholes and grating, and water splashed into the air.
 


 When towing a malfunctioning vehicle.
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*Some models.4–14 3
When Driving
i-ACTIVSENSE
NOTE
  In the following cases, the laser sensor (front) may inadvertently determine that there
is a vehicle ahead and the Smart City Brake Support (SCBS) system 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 under a vinyl curtain or fl ag.



 Plastic objects such as pylons.



 Two-wheeled vehicles, pedestrians, animals or standing trees.



 Vehicle is driven with some of the tyres having signifi cant wear. 

 When the system operates, the user is notifi ed by the fl ashing Smart City Brake
Support (SCBS) indicator light (red) and the active driving display * .   The Smart City Brake Support (SCBS) warning light (amber) turns on when the
system has a malfunction.
 Refer to Warning Lights on page 4-41 .
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4–14 6
When Driving
i-ACTIVSENSE
NOTE
  The Smart Brake Support (SBS) system operates when all of the following conditions
are met:
 


 The ignition is switched ON.



 The Smart Brake Support (SBS) system is on.



 The DSC OFF indicator light is not illuminated.



 The vehicle speed is about 15 km/h or faster (10 mph or faster).



 The relative speed between your vehicle and the vehicle ahead is about 15 km/h or
faster (10 mph or faster).
 


 The Dynamic Stability Control (DSC) is not operating. 

 The Smart Brake Support (SBS) system may not operate under the following
conditions:
 


 If there is the possibility of hitting only a part of a vehicle ahead.



 If the vehicle is accelerated rapidly and it comes close to a vehicle ahead.



 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.



 The direction indicator is being used. 

 Although the objects which activate the system are 4-wheeled vehicles, the radar
sensor could detect the following objects, determine them to be an obstruction, and
operate the Smart Brake Support (SBS) system.
 


 Objects on the road at the entrance to a curve (including guardrails and snow banks).



 A vehicle appears in the opposite lane while cornering or rounding a curve.



 When crossing a narrow bridge.



 When passing under a low gate or through a tunnel or narrow gate.



 When entering an underground parking area.



 Metal objects, bumps, or protruding objects on the road.



 If you suddenly come close to a vehicle ahead.



 When driving in areas where there is high grass or forage.



 Two-wheeled vehicles such as motorbikes or bicycles.



 Pedestrians or non-metallic objects such as standing trees. 

 When the system operates, the user is notifi ed by the fl ashing Smart Brake Support
(SBS) indicator light (red) and the active driving display.
  The Smart Brake Support (SBS) warning light (amber) turns on when the system has a
malfunction.
 Refer to Warning Lights on page 4-41 .
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4–152
When Driving
i-ACTIVSENSE
NOTE
  In the following cases, the radar sensor (front) may not be able to detect vehicles ahead
or obstructions.
 


 The rear surface of a vehicle ahead does not refl ect radio waves effectively, such as
an unloaded trailer or an automobile with a loading platform covered by a soft top,
vehicles with a hard plastic tailgate, and round-shaped vehicles.
 


 Vehicles ahead with low vehicle height and thus less area for refl ecting radio waves.



 Visibility is reduced due to a vehicle ahead casting off water, snow, or sand from its
tyres and onto your windscreen.
 


 The boot/luggage compartment is loaded with heavy objects or the rear passenger
seats are occupied.
 


 Ice, snow, or soiling is on the front surface of the front emblem.



 During inclement weather such as rain, snow, or sand storms.



 When driving near facilities or objects emitting strong radio waves. 

 In the following cases, the radar sensor (front) may detect vehicles in the opposite
lane or surrounding obstructions, or it may not be able to detect vehicles ahead or
obstructions.
 


 The beginning and end of a curve.



 Roads with continuous curves.



 Narrow lane roads due to road construction or lane closures.



 The vehicle ahead enters the radar sensor's blind spot.



 The vehicle ahead is running abnormally due to accident or vehicle damage. 



 Roads with repeated up and down slopes



 Driving on poor roads or unpaved roads.



 The distance between your vehicle and the vehicle ahead is extremely short.



 A vehicle suddenly comes close such as by cutting into the lane. 

 To prevent incorrect operation of the system, use tyres of the same specifi ed size,
manufacturer, brand, and tread pattern on all four wheels. In addition, do not use
tyres with signifi cantly different wear patterns or tyre pressures on the same vehicle.
(Including the temporary spare tyre)
  If the battery power is weak, the system may not operate correctly. 
 When driving on roads with little traffi c and few vehicles ahead or obstructions for the
radar sensor (front) to detect, Smart Brake Support/Smart City Brake Support (SBS/
SCBS) warning light (amber) temporarily illuminates, however, this does not indicate
a problem.
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*Some models.4–161
When Driving
Tyre Pressure Monitoring System
Tyre Pressure Monitoring System *
The Tyre Pressure Monitoring System (TPMS) monitors the air pressure of all four tyres. If
the air pressure of one or more tyres is too low, the system warns the driver by indicating the
tyre pressure monitoring system warning light in the instrument cluster and operating a beep
sound. The system monitors the tyre pressures indirectly using the data sent from the ABS
wheel speed sensors.
To allow the system to operate correctly, the system needs to be initialized with the specifi ed
tyre pressure (value on the tyre pressure label). Follow the procedure and perform the
initialization.
Refer to Tyre Pressure Monitoring System Initialization on page 4-164 .
The warning light fl ashes when the system has a malfunction.
Refer to Warning Lights on page 4-41 .
ABS wheel speed sensor
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