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 supports safer driving by helping the driver to recognise potential hazards and avert accidents.
Driver awareness support systems
Nighttime visibility
Left/right side and rear side detection
Inter-vehicle distance recognition
Driver fatigue detection
Rear obstruction detection when leaving a parking space
Driver awareness support systems
Inter-vehicle distance
Lane departure
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
Reverse driving
Collision damage reduction in medium/high speed range
Forward Sensing Camera (FSC)
The Forward Sensing Camera (FSC) detects lane indications and recognises headlights, tail lights and city lights during nighttime driving. The following systems also use the Forward Sensing Camera (FSC).
High Beam Control system (HBC)
Lane Departure Warning System (LDWS)
Adaptive LED headlights
Driver attention alert
Lane-keep assist system
Smart Brake Support (SBS)
The Forward Sensing Camera (FSC) is installed at the top of the windscreen near the rearview mirror.
Refer to Forward Sensing Camera (FSC) (Search).
Radar sensor (front)
The radar sensor (front) functions by detecting the radio waves reflected 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) (Search).
Laser sensor (front)
The laser sensor (front) emits a near-infrared laser beam and receives the beam reflected off the reflective 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 Brake Support (SBS)
Smart City Brake Support [Forward] (SCBS F)
The laser sensor (front) is installed at the top of the windscreen near the rearview mirror.
Refer to Laser Sensor (Front) (Search).
Radar sensors (rear)
The radar sensors (rear) function by detecting the radio waves reflected off a vehicle approaching from the rear or an obstruction sent from the radar sensors. The following systems also use the radar sensors (rear).
Blind Spot Monitoring (BSM) System
Rear Cross Traffic Alert (RCTA)
The radar sensors (rear) are installed inside the rear bumper, one each on the left and right sides.
Refer to Radar Sensors (Rear) (Search).
Ultrasonic sensors (rear)
The ultrasonic sensors (rear) function by detecting the ultrasonic waves reflected off obstructions at the rear sent from the ultrasonic sensors. The following systems also use the ultrasonic sensors (rear).
Smart City Brake Support [Reverse] (SCBS R)
The ultrasonic sensors (rear) are mounted in the rear bumper.
Refer to Ultrasonic Sensor (Rear) (Search).
The adaptive front lighting system (AFS) automatically adjusts the headlight beams to the left or right in conjunction with the operation of the steering wheel after the headlights have been turned on.
A system malfunction or operation conditions are indicated by a warning.
Refer to Warning/Indicator Lights (Search).
The Adaptive Front Lighting System (AFS) function can be switched to operable/inoperable using the personalisation function.
Refer to Personalisation Features (Search).
The High Beam Control System (HBC) determines the conditions in front of the vehicle using the Forward Sensing Camera (FSC) while driving in darkness to automatically switch the headlights between high and low beams.
Refer to Warning/Indicator Lights (Search).
While driving the vehicle at a speed of about 30 km/h (18 mph), the headlights are switched to high beams when there are no vehicles ahead or approaching in the opposite direction.
The system switches the headlights to low beams when one of the following occurs:
The system detects a vehicle or the headlights/lights of a vehicle approaching in the opposite direction.
The vehicle is driven on roads lined with streetlamps or on roads in well-lit cities and towns.
The vehicle is driven at less than about 20 km/h (12 mph).
The warning light illuminates or flashes when the system has a malfunction.
Refer to Warning/Indicator Lights (Search).
Do not adjust the vehicle height, modify the headlight units, or remove the camera, otherwise the system will not operate normally.
Do not rely excessively on the High Beam Control System (HBC) and drive the vehicle while paying sufficient attention to safety. Switch the headlights between the high beams and low beams manually if necessary.
The timing in which the system switches the headlights changes under the following conditions. If the system does not switch the headlights appropriately, manually switch between high and low beams according to the visibility as well as road and traffic conditions.
When there are sources of light in the area such as street lamps, illuminated signboards, and traffic signals.
When there are reflective objects in the surrounding area such as reflective plates and signs.
When visibility is reduced under rain, snow and foggy conditions.
When driving on roads with sharp curves or hilly terrain.
When the headlights/rear lamps of vehicles in front of you or in the opposite lane are dim or not illuminated.
When there is insufficient darkness such as at dawn or dusk.
When the luggage compartment is loaded with heavy objects or the rear passenger seats are occupied.
When visibility is reduced due to a vehicle in front of you spraying water from its tyres onto your windscreen.
The High Beam Control System (HBC) operates to switch the headlights automatically between high and low beams after the ignition is switched ON and the headlight switch is in the AUTO and high beam position.
The High Beam Control System (HBC) determines that it is dark based on the brightness of the surrounding area. At the same time, the High Beam Control System (HBC) indicator light (green) in the instrument cluster illuminates.
When the vehicle speed is 30 km/h (19 mph) or higher, the headlights automatically switch to high beams when there are no vehicles ahead or approaching in the opposite direction.
When the vehicle speed is less than about 20 km/h (12 mph), the High Beam Control System (HBC) switches the headlights to low beams.
The low beams may not switch to high beams when cornering.
Operation of the High Beam Control System (HBC) function can be disabled. Refer to Personalisation Features (Search).
Switching to low beams
Shift the lever to the low beam position.
The High Beam Control System (HBC) indicator light (green) turns off.
Switching to high beams
Turn the headlight switch to the position.
The High Beam Control System (HBC) indicator light (green) turns off and the is illuminated.
The system switches the headlights to the high beams after the ignition is switched
ON and the headlight switch is in the position. The adaptive LED headlights indicator light (green) in the instrument cluster
turns on simultaneously.
The adaptive LED headlights determine that it is nighttime based on the brightness of the surrounding area.
The system cancels operation when the headlight switch is turned to a position other
than , the headlights are manually switched to low beams, or the high beams are flashed
on and off.
The system can be changed so that the adaptive LED headlights do not operate.
Refer to Personalisation Features (Search).
Switching to low beams
Shift the lever to the low beam position.
The adaptive LED headlights indicator light (green) turns off.
Switching to high beams
Turn the headlight switch to the position.
The adaptive LED headlights indicator light (green) turns off and the is illuminated.
The system goes on operation standby when the LDWS switch is pressed and the LDWS OFF indication/indicator light turns off.
On the type A instrument cluster, the lane indication (border line) is indicated in the multi-information display.
Indication on display
Drive the vehicle in the centre of the driving lane while the LDWS OFF indicator light is turned off. The system becomes operational when all of the following conditions are met.
The vehicle is driven in the centre of the driving lane with the white or yellow lines on the left and right sides, or on either side.
The vehicle speed is 70 km/h (44 mph) or faster.
The vehicle is driven on a straight road or road with gentle curves.
On the type A instrument cluster, the lane indication is indicated in the multi-information display.
Indication on display
The LDWS does not operate in the following cases:
The system cannot detect white or yellow lines.
The vehicle speed is less than 65 km/h (40 mph).
The vehicle is making a sharp curve.
The vehicle is making a curve at an inadequate speed.
The LDWS does not operate until the system detects a white or yellow line on either the left or right.
When the system detects a white or yellow line on one side only, the system will activate the warning only when the vehicle deviates on the side where the white or yellow line is being detected.
The distance and warning sensitivity (likelihood of a warning) which the system uses to determine the possibility of a lane departure can be changed.
Refer to Personalisation Features (Search).
Auto cancel
In the following cases, the LDWS cancels automatically.
The temperature inside the camera is high or low.
The windscreen around the camera is foggy.
The windscreen around the camera is blocked by an obstruction, causing poor forward visibility.
When the LDWS cancels automatically, the instrument cluster displays as follows.
Vehicle with type A instrument cluster
The lane indication (border line) is indicated in the display.
The LDWS is enabled automatically when operation conditions are met, and the lane indication is indicated in the display.
Vehicle with type B instrument cluster
The LDWS warning light in the instrument cluster turns on.
The LDWS warning light turns off when the LDWS is operable.
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 cancelled 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 direction indicator lever is operated (after the direction indicator lever is returned, the LDWS may not operate for about 3 seconds which is the period of time required to make a lane correction).
After about 60 seconds have elapsed with the direction indicator lever left operating, the LDWS warning may operate if the vehicle is close to a white or yellow line.
Press the LDWS switch to cancel the LDWS. The LDWS OFF indication/indicator light turns on.
The lane indication displayed in the type A instrument cluster turns off.
If the system determines that there is the possibility of a lane departure, the LDWS warning beep activates and the LDWS warning light flashes. (vehicle with type B instrument cluster)
Vehicles with type A instrument cluster, if there is the possibility of a lane departure, the system indicates the direction it determines that the vehicle is deviating in the multi-information display.
Operate the steering wheel appropriately and steer the vehicle to the centre of the lane.
Indication on display
If the LDWS warning sound is set to rumble*1, the sound will be heard from the vehicle speaker on the side which the system determined the vehicle may be deviating from its lane.
It may be difficult to hear the LDWS warning beep depending on the surrounding conditions such as outside noise.
The volume of the LDWS warning sound can be changed.
Refer to Personalisation Features (Search).
The type of warning sound (rumble*1/beep) on the LDWS can be changed.
Refer to Personalisation Features (Search).
A rumble strip is a series of grooves in the road pavement surface positioned at specific intervals, and when the vehicle passes over it a vibration and rumble sound is produced which alerts the driver that the vehicle is departing from the lane.
The rumble sound is a reproduction of the sound which occurs when a vehicle passes over a rumble strip.
The Blind Spot Monitoring (BSM) system is designed to assist the driver in checking the area to the rear of the vehicle on both sides during lane changes by alerting the driver to the presence of vehicles approaching from the rear in an adjacent lane.
The Blind Spot Monitoring (BSM) system detects vehicles approaching from the rear while travelling in the forward direction at a speed of 10 km/h (6.3 mph) or faster and turns on the Blind Spot Monitoring (BSM) warning lights equipped on the door mirrors depending on the conditions. If the direction indicator lever is operated to signal a lane change in the direction in which the Blind Spot Monitoring (BSM) warning light is illuminated, the system warns the driver of a vehicle in the detection area by flashing the Blind Spot Monitoring (BSM) warning light and activating a beep sound.
Always check the surrounding area visually before making an actual lane change:
The system is only designed to assist you in checking for vehicles at your rear when making a lane change. Due to certain limitations with the operation of this system, the Blind Spot Monitoring (BSM) warning light may not flash or it might be delayed even though a vehicle is in an adjacent driving lane. Always make it your responsibility as a driver to check the rear.
The system is only designed to assist you in checking for vehicles at your rear when making a lane change. Due to certain limitations with the operation of this system, the Blind Spot Monitoring (BSM) warning light may not flash or it might be delayed even though a vehicle is in an adjacent driving lane. Always make it your responsibility as a driver to check the rear.
The ignition is switched ON.
The Blind Spot Monitoring (BSM) switch is pressed and the Blind Spot Monitoring (BSM) OFF indication/indicator light in the instrument cluster is turned off.
The vehicle speed is about 10 km/h (6.3 mph) or faster.
The Blind Spot Monitoring (BSM) system will not operate under the following circumstances.
The vehicle speed falls below about 10 km/h (6.3 mph) even though the Blind Spot Monitoring (BSM) OFF indicator light is turned off.
The selector lever is shifted to reverse (R) and the vehicle is reversing.
In the following cases, the Blind Spot Monitoring (BSM) OFF indicator light turns on and operation of the system is stopped. If the Blind Spot Monitoring (BSM) OFF indicator light remains illuminated, have the vehicle inspected at an Authorised Mazda Dealer as soon as possible.
Some problem with the system including the Blind Spot Monitoring (BSM) warning lights is detected.
A large deviation in the installation position of a radar sensor (rear) on the vehicle has occurred.
There is a large accumulation of snow or ice on the rear bumper near a radar sensor (rear). Remove any snow, ice or mud on the rear bumper.
Driving on snow-covered roads for long periods.
The temperature near the radar sensors (rear) becomes extremely hot due to driving for long periods on slopes during the summer.
The battery voltage has decreased.
The radar sensors may not detect all types of vehicles around your vehicle, especially the following types of vehicles:
Motorcycles
Vehicles with body shapes that radar may not reflect such as a flatbed trailer with no cargo.
Vehicles with lower body height such as sports cars.
Under the following conditions, the radar sensors (rear) cannot detect target objects or it may be difficult to detect them.
A vehicle is in the detection area at the rear in an adjacent driving lane but it does not approach. The Blind Spot Monitoring (BSM) system determines the condition based on radar detection data.
A vehicle is travelling alongside your vehicle at nearly the same speed for an extended period of time.
Vehicles approaching in the opposite direction.
A vehicle in an adjacent driving lane is attempting to pass your vehicle.
A vehicle is in an adjacent lane on a road with extremely wide driving lanes. The detection area of the radar sensors (rear) is set at the road width of expressways.
In the following cases, the activation of the Blind Spot Monitoring (BSM) warning lights and the warning beep may not occur or they may be delayed.
A vehicle makes a lane change from a driving lane two lanes over to an adjacent lane.
Driving on steep slopes.
Crossing the summit of a hill or mountain pass.
The turning radius is small (making a sharp curve, turning at intersections).
When there is a difference in the height between your driving lane and the adjacent lane.
Directly after pressing the Blind Spot Monitoring (BSM) switch and the system becomes operable.
If the road width is extremely narrow, vehicles two lanes over may be detected. The detection area of the radar sensors (rear) is set according to the road width of expressways.
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 malfunction.
A Blind Spot Monitoring (BSM) warning light may flash or the warning beep may be activated several times when making a turn at a city intersection.
Turn off the Blind Spot Monitoring (BSM) system while pulling a trailer or while an accessory such as a bicycle carrier is installed to the rear of the vehicle. Otherwise, the radar's radio waves will be blocked causing the system to not operate normally.
In the following cases, it may be difficult to view the illumination/flashing of the Blind Spot Monitoring (BSM) warning lights equipped on the door mirrors.
Snow or ice is adhering to the door mirrors.
The front door glass is fogged or covered in snow, frost or dirt.
The system switches to the Rear Cross Traffic Alert function when the selector lever is shifted to the reverse (R) position.
Refer to Rear Cross Traffic Alert (RCTA) (Search).
The Blind Spot Monitoring (BSM) or Rear Cross Traffic Alert (RCTA) system notifies the driver of the presence of vehicles in adjacent lanes to the rear of your vehicle using the Blind Spot Monitoring (BSM) warning lights and the warning beep while the systems are operational.
Blind Spot Monitoring (BSM) warning lights
The Blind Spot Monitoring (BSM) warning lights are equipped on the left and right door mirrors. The warning lights turn on when a vehicle approaching from the rear in an adjacent lane is detected.
When the ignition is switched ON, the malfunction warning light turns on momentarily and then turns off after a few seconds.
Forward driving (Blind Spot Monitoring (BSM) system operation)
The Blind Spot Monitoring (BSM) system detects vehicles approaching from the rear and turns on the Blind Spot Monitoring (BSM) warning lights equipped on the door mirrors according to the conditions. Additionally, while a Blind Spot Monitoring (BSM) warning light is illuminated, if the direction indicator lever is operated to signal a turn in the direction in which the Blind Spot Monitoring (BSM) warning light is illuminated, the Blind Spot Monitoring (BSM) warning light flashes.
Reverse driving (Rear Cross Traffic Alert (RCTA) system operation)
The Rear Cross Traffic Alert (RCTA) system detects vehicles approaching from the left and right of your vehicle and flashes the Blind Spot Monitoring (BSM) warning lights.
Function for cancelling illumination dimmer
When the headlight switch is in the or
position, the brightness of the Blind Spot Monitoring (BSM) warning lights is dimmed.
If the Blind Spot Monitoring (BSM) warning lights are difficult to see due to glare
from surrounding brightness when travelling on snow-covered roads or under foggy conditions,
press the dimmer cancellation button to cancel the dimmer and increase the brightness
of Blind Spot Monitoring (BSM) warning lights when they turn on.
Refer to Instrument Panel Illumination (Search).
Blind Spot Monitoring (BSM) warning beep
The Blind Spot Monitoring (BSM) warning beep is activated simultaneously with the flashing of a Blind Spot Monitoring (BSM) warning light.
When the Blind Spot Monitoring (BSM) switch is pressed, the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems are turned off and the Blind Spot Monitoring (BSM) OFF indication/indicator light in the instrument cluster turns on.
If the switch is pressed again, the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems become operable and the Blind Spot Monitoring (BSM) OFF indication/indicator light turns off.
When the ignition is switched off, the condition before the system was turned off is maintained. For example, if the ignition is switched OFF while the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems are operational, the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems remain operational the next time the ignition is switched ON.
The Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems are turned off when the battery is disconnected such as when the battery terminals or fuses have been removed and re-installed. To turn the Blind Spot Monitoring (BSM) and Rear Cross Traffic Alert (RCTA) systems back on, press the Blind Spot Monitoring (BSM) switch.
The Distance Recognition Support System (DRSS) measures the distance between your vehicle and a vehicle ahead using a radar sensor (front) 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 multi-information display or the active driving display (with active driving display) is flashed to advise the driver to keep a safer distance from the vehicle ahead.
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 notifies 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 traffic 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.
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) 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)
The Driver Attention Alert is a system which detects driver fatigue and decreased attentiveness, and encourages the driver to take a rest.
When the vehicle is driven inside traffic lane lines at about 65 to 140 km/h (41 to 86 mph), the Driver Attention Alert estimates the amount of accumulated fatigue and decreased attentiveness of the driver based on the information from the forward sensing camera (FSC) and other vehicle information, and encourages the driver to take a rest using an indication on the multi-information display and a warning sound.
Use the Driver Attention Alert on expressways or highways.
Refer to Forward Sensing Camera (FSC) (Search).
Do not rely completely on Driver Attention Alert and always drive carefully:
The Driver Attention Alert detects driver fatigue and decreased attentiveness and encourages the driver to take a rest, however, it is not designed to prevent the vehicle from straying. If you rely too much on the Driver Attention Alert it could lead to an accident. Drive carefully and operate the steering wheel appropriately.
In addition, the system may not be able to detect driver fatigue and decreased attentiveness correctly depending on the traffic and driving conditions. The driver must take sufficient rest in consideration of safer driving.
The Driver Attention Alert operates when all of the following conditions are met.
The vehicle speed is about 65 to 140 km/h (41 to 86 mph).
The system detects white (yellow) lane lines.
The system has completed learning of the driver's driving data.
The Driver Attention Alert does not operate under the following conditions.
The vehicle speed is less than about 65 km/h (41 mph).
The vehicle speed exceeds about 140 km/h (86 mph)
The vehicle is making a sharp turn.
The vehicle is changing lanes.
The Driver Attention Alert may not operate normally under the following conditions.
White (yellow) lane lines are less visible because of dirt or fading/patchiness.
The vehicle is jolted or swayed continuously by strong winds or rough roads.
The vehicle is driven aggressively.
When making frequent lane changes.
The Driver Attention Alert detects driver fatigue and decreased attentiveness based on the driving data when the vehicle is driven at about 65 to 140 km/h (41 to 86 mph) for about 20 minutes. The driving data will be reset under the following conditions.
The vehicle is stopped for 5 minutes or longer.
The vehicle is driven at less than about 65 km/h (41 mph) for about 30 minutes.
The ignition is switched off.
After the Driver Attention Alert has displayed the first message encouraging rest, it does not display the next one until 45 minutes have passed.
Smart City Brake Support [Reverse] (SCBS) is a system which is designed to reduce damage in the event of a collision by operating the brake control (SCBS brake) when the system’s ultrasonic sensors detect an obstruction at the rear of the vehicle while driving at a speed of about 2 to 8 km/h (2 to 4 mph) and the system determines that a collision is unavoidable. In addition, when the driver depresses the brake pedal while the system is in the operation range at a vehicle speed of about 2 to 8 km/h (2 to 4 mph), the brakes are applied firmly and quickly to provide assistance. (Brake Assist (SCBS brake assist))
Do not rely completely on the Smart City Brake Support [Reverse] system:
The Smart City Brake Support [Reverse] (SCBS R) 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.
To assure the correct operation of the Smart City Brake Support [Reverse] (SCBS R), heed the following cautions.
Do not apply a sticker to an ultrasonic sensor (rear) (including transparent stickers). Otherwise, the ultrasonic sensor (rear) may not be able to detect vehicles or obstructions which could result in an accident.
Do not disassemble an ultrasonic sensor (rear).
If cracks or damage caused by flying gravel or debris is visible around an ultrasonic sensor (rear), stop using the Smart City Brake Support [Reverse] (SCBS R) 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 around an ultrasonic sensor, the system may operate unnecessarily and cause an unexpected accident.
Refer to Personalisation Features on how to turn off the system. (Search)
Consult an expert repairer, we recommend an Authorised Mazda Repairer for rear bumper replacement.
Do not modify the suspension:
If the vehicle height or inclination is changed, the Smart City Brake Support [Reverse] (SCBS R) system may not operate correctly because it cannot detect obstructions correctly.
Do not apply a strong force to an ultrasonic sensor (rear):
When washing the vehicle, do not spray highly pressurised water against an ultrasonic sensor (rear), or rub it strongly. In addition, do not hit the rear bumper forcefully when loading and unloading cargo Otherwise, the sensors may not detect obstructions correctly which could cause the Smart City Brake Support [Reverse] (SCBS R) system to not operate normally, or it could operate unnecessarily.
When driving off-road in areas where there is grass or forage, it is recommended that the Smart City Brake Support [Reverse] (SCBS R) system be turned off.
Always use tyres of the specified size and the same manufacturer, brand, and tread pattern on all 4 wheels. In addition, do not use tyres with significantly different wear patterns on the same vehicle. Do not use tyres with significantly different wear patterns on the same vehicle. Otherwise, the Smart City Brake Support [Reverse] (SCBS R) system may not operate normally.
If ice or snow is stuck on the ultrasonic sensors (rear) they may not be able to detect obstructions correctly depending on the conditions. In such cases, the system may not be able to perform controls correctly. Always drive carefully and pay attention to the rear of the vehicle.
The vehicle posture changes depending on the accelerator pedal, brake pedal and steering wheel operations, which could make it difficult for the system to recognise an obstruction, or it could facilitate unnecessary detection. In such cases, the Smart City Brake Support [Reverse] (SCBS R) may or may not operate.
The Smart City Brake Support [Reverse] (SCBS R) system will operate under the following conditions.
The engine is running.
The selector lever is in the R (reverse) position.
“SCBS Reverse malfunction” is not displayed in the multi-information display.
The vehicle speed is between about 2 to 8 km/h (2 to 4 mph).
The Smart City Brake Support (SCBS) is not turned off.
The DSC is not malfunctioning.
The Smart City Brake Support [Reverse] (SCBS R) operates using ultrasonic sensors (rear) which detect obstructions at the rear by emitting ultrasonic waves and then receiving the returning waves reflected off the obstructions.
In the following cases, the ultrasonic sensors (rear) cannot detect obstructions and the Smart City Brake Support [Reverse] (SCBS R) may not operate.
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 small.
The obstruction is thin such as a signpost.
The obstruction is positioned away from the centre of the vehicle.
The surface of the obstruction is not pointed vertically relative to the 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.
In the following cases, the ultrasonic sensors (rear) cannot detect obstructions correctly and the Smart City Brake Support [Reverse] (SCBS R) may not operate.
Something is stuck on the bumper near an ultrasonic sensor (rear).
The steering wheel is turned sharply, or the brake or accelerator pedal is operated.
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.
Heavy luggage is loaded in the luggage compartment or on the rear seat.
Objects such as a wireless aerial, fog light, or illuminated number plate is installed near an ultrasonic sensor (rear).
The orientation of an ultrasonic sensor (rear) has deviated for reasons such as a collision.
The vehicle is affected by other sound waves such as the horn, engine noise, ultrasonic sensor of another vehicle.
In the following cases, an ultrasonic sensor (rear) may detect something as a target obstruction which could cause the Smart City Brake Support [Reverse] (SCBS R) system to operate.
Driving on a steep slope.
Wheel blocks.
Hanging curtains, gate poles such as at toll gates and railroad crossing.
When travelling near objects such as foliage, barriers, vehicles, walls, and fences along a road.
When driving off-road in areas where there is grass and forage.
When passing through low gates, narrow gates, car washing machines, and tunnels.
A towing bar is installed or a trailer is connected.
“SCBS Automatic Brake” is displayed in the multi-information display or the active driving display (with active driving display) while the SCBS brakes or the brake assist (SCBS brake assist) is operating.
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 one time after about 2 seconds and the SCBS brake is automatically released.
The Smart City Brake Support [Reverse] (SCBS R) system can be temporarily deactivated.
Refer to Personalisation Features (Search).
When the Smart City Brake Support [Reverse] (SCBS R) system is turned off, the Smart City Brake Support (SCBS) OFF indicator light turns on.
When the engine is restarted, the system becomes operational.