Rear Cross Traffic Alert (RCTA)
Rear Cross Traffic Alert (RCTA) (Some Models)
The RCTA assists the driver in checking the area to the rear of the vehicle, such as while reversing out of a parking space. When a vehicle approaching from the rear on the left or right is detected, various screen displays and warning sounds notify the driver of the danger.

Warnings and Cautions for Using the Rear Cross Traffic Alert (RCTA)
Do not rely completely on the RCTA.
The RCTA is a system to assist the driver in checking the area to the rear of the vehicle while reversing. Due to certain limitations with the operation of the system, the BSM warning light may not flash or it might be delayed even though a vehicle is at the rear of your vehicle. Always make it your responsibility as a driver to check the rear.
How to Use the Rear Cross Traffic Alert (RCTA)
Operating the RCTA
The RCTA operates when all of the following conditions are met.
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The vehicle is about to be driven in reverse.
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The system detects an approaching vehicle.
When the RCTA operates, the driver is notified of the danger by flashing of the BSM warning lights, a warning indication, and a warning sound.

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The system may operate even if a vehicle is not approaching depending on the conditions around your vehicle.
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The RCTA may not operate normally if any of the following conditions is met.
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The rear side radar sensors cannot detect an object.
Refer to Radar Sensors (Search).
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The vehicle speed when reversing is about 15 km/h (9 mph) or faster.
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A vehicle is approaching directly from the rear of your vehicle.
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A vehicle is approaching at an angle from the rear of your vehicle.
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If a Mazda genuine trailer hitch is used, the RCTA is automatically turned off when the trailer's electrical connector is connected.
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When pulling a trailer other than with a Mazda genuine trailer hitch, or while an accessory such as a bicycle carrier is installed to the rear of the vehicle, turn off the RCTA. Otherwise, the radar’s radio waves will be blocked causing the RCTA to not operate normally.
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The brightness of the BSM warning lights is linked to the panel light control.
Refer to Dashboard Illumination (Search).
Turning off the warning sound
There are 2 ways to turn off the warning sound while the RCTA is operating.
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Turn off the warning sound using Mazda Connect.
Refer to the Settings section in the Mazda Connect Owner's Manual.
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Turn off the warning sound using the i-ACTIVSENSE mute switch.
Refer to How to Use the i-ACTIVSENSE mute switch (Search).
Turning off the RCTA
The RCTA can be turned off using the Mazda Connect.
Refer to the Settings section in the Mazda Connect Owner's Manual.