The system is only available for vehicles with Blind Spot Assist.
The system uses the radar sensors in the bumper. This way the area adjacent to the vehicle is continually monitored. If the radar sensors are obscured by vehicles or other objects, detection is not possible.
Also read the notes on Blind Spot Assist More.
The system can warn of crossing traffic when reversing out of a parking space. If the system detects a vehicle, the warning lamp in the outside mirror on the corresponding side lights up red. In a critical situation, an additional warning tone sounds.
Blind Spot Assist is activated.
Reverse gear is engaged or the vehicle is reversing at walking pace.
The Rear Cross Traffic Alert function is unavailable when driving with a trailer.