Mazda CX-5 2021 Owner's Manual page 400

When Driving
i-ACTIVSENSE
When driving on roads with little traffic and few vehicles ahead or obstructions for the

radar sensor (front) to detect, "Front Radar Sensor Blocked" may be temporarily
displayed, however, this does not indicate a problem.
The radar sensors are regulated by the relevant radio wave laws of the country in which

the vehicle is driven. If the vehicle is driven abroad, authorization from the country in
which the vehicle is driven may be required.
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