The Rear Cross Traffic Alert (RCTA) system is designed to assist the driver in checking the area to the rear of the vehicle on both sides while the vehicle is reversing by alerting the driver to the presence of vehicles approaching the rear of the vehicle.
The Rear Cross Traffic Alert (RCTA) system detects vehicles approaching from the left and right sides of the vehicle while the vehicle is being reversed out of a parking space, and notifies the driver of possible danger using the Blind Spot Monitoring (BSM) warning indicator lights and the warning buzzer.
Rear Cross Traffic Alert (RCTA) operation
The Rear Cross Traffic Alert (RCTA) system operates when the selector lever is shifted to the reverse (R) position.
If there is the possibility of a collision with an approaching vehicle, the Blind Spot Monitoring (BSM) warning indicator lights flashes and the warning beep is activated simultaneously.
(With rear view monitor)
The Rear Cross Traffic Alert (RCTA) warning indication in the rearview monitor also synchronizes with the Blind Spot Monitoring (BSM) warning indicator light on the door mirrors.
Always check the surrounding area visually before actually putting the vehicle in reverse:
The system is only designed to assist you in checking for vehicles at the rear when putting the vehicle in reverse. Due to certain limitations with the operation of this system, the Blind Spot Monitoring (BSM) warning indicator lights may not flash or it might be delayed even though a vehicle is behind your vehicle. Always make it your responsibility as a driver to check the rear.
In the following cases, the Blind Spot Monitoring (BSM) warning indication/warning light turns on and operation of the system is stopped. If the Blind Spot Monitoring (BSM) warning indication/warning light remains illuminated, have the vehicle inspected at an Authorized Mazda Dealer as soon as possible.
Some problem with the system including the Blind Spot Monitoring (BSM) warning indicator lights has occurred.
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).
Driving on snow-covered roads for long periods.
The temperature near the radar sensors becomes extremely hot due to driving for long periods on slopes during the summer.
The battery voltage has decreased.
Under the following conditions, the radar sensors (rear) cannot detect target objects or it may be difficult to detect them.
The vehicle speed when reversing is about 15 km/h (9 mph) or faster.
The radar sensor (rear) detection area is obstructed by a nearby wall or parked vehicle. (Reverse the vehicle to a position where the radar sensor detection area is no longer obstructed.)
A vehicle is approaching directly from the rear of your vehicle.
The vehicle is parked on a slant.
Directly after pressing the Blind Spot Monitoring (BSM) OFF switch and the system becomes operable.
In the following cases, it may be difficult to view the illumination/flashing of the Blind Spot Monitoring (BSM) warning indicator lights equipped on the door mirrors.
Snow or ice adheres to the door mirrors.
The front door glass is fogged or covered in snow, frost or dirt.
Turn off the Rear Cross Traffic Alert (RCTA) system while pulling a trailer or while an accessory such as a bicycle carrier is installed to the rear of the vehicle. Otherwise, the radio waves emitted by the radar will be blocked causing the system to not operate normally.
Make sure that the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch indicator light is turned off. When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch indicator light is turned on, press the switch and make sure that the switch indicator light turns off.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) indication (white) is displayed in the multi-information display, and the system goes on stand-by.
Drive the vehicle in the center of the vehicle lane while the system is on standby. When all of the following conditions are met, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) indication (green) is displayed in the multi-information display, and the system becomes operational.
The engine is running.
The vehicle speed is about 60 km/h (37 mph) or faster.
The system detects white (yellow) lane lines on both the right and left sides.
The driver is operating the steering wheel.
The driving lane is neither narrow nor wide.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) goes on stand-by status in the following cases:
The system cannot detect white (yellow) lane lines.
The vehicle speed is less than about 60 km/h (37 mph).
The ABS/TCS/DSC is operating.
The TCS is turned off.
(If the TCS is turned off while the system is operational, a warning beep is heard and the system goes on standby.)
The vehicle is making a sharp curve.
The vehicle is making a curve at an inadequate speed.
The driver takes his or her hands off the steering wheel (not holding the steering wheel).
Sudden acceleration/deceleration.
Driving on winding roads.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) does not operate until the system detects white (yellow) lane lines on either the left or right.
When the system detects a white (yellow) lane line on one side only, the system will not operate the steering wheel operation assist for the lane line on the side that is not being detected. The warning is only for a lane deviation on the side that is being detected.
If the driver takes his or her hands off the steering wheel (not holding the steering wheel), the warning sound is activated and an alert is indicated in the multi-information display.
If the steering wheel is held lightly, or depending on the road conditions, the system may detect that you have released the steering wheel (not holding the steering wheel) even if you are holding it, and display a message in the multi-information display.
The timing at which the lane departure warning is activated and the steering wheel operation assist is performed varies.
The following settings for the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) can be changed. Refer to Personalization Features (Search).
Steering operation assist operational/non-operational
Cancel sensitivity (likelihood of steering assist)
Vehicle lane line display
When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) becomes operational while on standby, the vehicle lane lines are displayed in the multi-information display and the active driving display. In the vehicle lane lines display indicating the operation status, the color of the vehicle lane lines being detected changes to white.
(Stand-by status)
(Operational status)
Auto cancel
In the following cases, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is automatically canceled, the Lane-keep Assist System (LAS) and Lane Departure Warning System (LDWS) warning indication (amber) turns on, and an alert is displayed. When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) become operational, the system turns back on automatically.
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.
Auto cancel of warning/steering assist
When the following operations are performed, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) determines that the driver intends to make a lane change and the system operation is canceled automatically. The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) resumes automatically after the operation.
The steering wheel is operated abruptly.
The brake pedal is operated.
The accelerator pedal is operated.
(To cancel the automatic sensitivity cancel function, deselect “Cancel sensitivity” in the personalization features setting.)
The turn signal lever is operated.
The vehicle crosses a lane line.
After the operation, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) operation may not operate for a period of 5 seconds at the most until the lane lines are detected.
Under the following conditions, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) cancels the warning/steering assist automatically.
The driver takes his/her hands off the steering wheel.
(The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is designed to assist the driver's steering operation and it will resume operation automatically when the driver holds the steering wheel.)
The TCS OFF switch is pressed to cancel the TCS.
Steering operation assist OFF (non-operational)
The steering operation assist for the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) can be changed to non-operational (OFF).
Refer to Setting Change (Personalization Features) (Search).
When the steering operation assist has been changed to non-operational (OFF), the operation conditions and the display of the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) differ. Operate the system as follows:
System operation
Make sure that the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch indicator light is turned off. When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch indicator light turns on, press the switch and make sure that the switch indicator light turns off.
Drive the vehicle in the center of the driving lane while the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch indicator light is turned off.
The system becomes operational when all of the following conditions are met.
The system detects white (yellow) lane lines on both the right and left sides or on either side.
The vehicle speed is about 60 km/h (37 mph) or faster.
The vehicle is driven on a straight road or road with gentle curves.
The engine is running.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) goes on stand-by status in the following cases:
The system cannot detect white (yellow) lane lines.
The vehicle speed is less than about 60 km/h (37 mph).
The vehicle is making a sharp curve.
The vehicle is making a curve at an inappropriate speed.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) remains on stand-by until it detects white (yellow) lines on both the left and right sides, or on either side.
When the system detects a white (yellow) lane line on one side only, the system will not activate warnings for the lane line on the side that is not 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 Setting Change (Personalization Features) (Search).
Vehicle lane line display
When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) becomes operational while on standby, the vehicle lane lines are displayed in the multi-information display and the active driving display. The system changes to operational status display when the system detects a white (yellow) line on either the left or right.
(Stand-by status)
(Operational status)
Auto cancel
In the following cases, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is automatically canceled, the Lane-keep Assist System (LAS) and Lane Departure Warning System (LDWS) warning indication (amber) turns on, and an alert is displayed. When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) become operational, the system turns back on automatically.
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.
(Auto cancel of warnings)
When the following operations are performed, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) determines that the driver intends to make a lane change and the system operation is canceled automatically. The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is resumes automatically after the operation.
The steering wheel is operated abruptly.
The brake pedal is depressed.
The accelerator pedal is depressed.
(To cancel the automatic sensitivity cancel function, deselect “Warning sensitivity” in the personalization features setting.)
The turn signal lever is operated.
The vehicle crosses a lane line.
When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is turned off, press the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch.
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF switch indicator light turns on.
When the ignition is switched OFF, the system status before it was turned off is maintained. For example, if the ignition is switched OFF with the lane-keep system operable, the system will be operable when the ignition is switched ON the next time.
In the following cases, the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is canceled automatically and the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF indication is displayed in the multi-information display. Have your vehicle inspected at an Authorized Mazda Dealer.
There is a malfunction in the power steering.
There is a malfunction in the DSC.
There is a malfunction in the Forward Sensing Camera (FSC).
When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) is turned off, the vehicle lane line indication in the multi-information display and the active driving display turn off.
If the system determines that the vehicle may deviate from its lane, the lane departure warning (beep sound, rumble sound*1, or steering wheel vibration) is activated and the direction in which the system determines that the vehicle may deviate is indicated in the multi-information display and the active driving display.
If the system determines that the vehicle may deviate from its lane, the color of the lane line on the side being detected by the system changes from white to amber, and flashes.
If you have set the lane departure warning sound to the beep sound/rumble sound*1 setting, the warning sound may not be heard depending on the surrounding noise conditions.
If you have set the lane departure warning system to the steering wheel vibrations setting, the vibration may not be felt depending on the road surface conditions.
When the setting for the steering operation assist is changed to operational, the warnings can be set to activate/not activate. (When the setting for the steering operation assist is changed to non-operational, the warnings cannot be set to not activate.)
Refer to Setting Change (Personalization Features) (Search).
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) can be changed to the following settings regardless of whether the steering operation assist has been set to operational/non-operational. Always check the setting status when driving the vehicle and make setting changes if necessary.
Refer to Setting Change (Personalization Features) (Search).
Steering wheel vibration: Strong/weak
Warning sound volume
Types of warnings (steering wheel vibration/beep sound/rumble sound*1)
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.