Will Pre Sense City Brake While Reversing?

[Ujw]

My A4 B9 Sport has front and rear parking sensors and the triangle camera thing on the windshield.
I've had the pre sense beep and symbol come on the gauge cluster a few times.
What I'm wondering is, can the A4's of this specification brake if we get too close to an object whilst reversing?

Thank you

 

[Fozzie1960]

That’s part of the Driver Assistant Pack - City
Rear cross traffic assist
The system helps the driver when reversing out of bay parking spaces by notifying them of detected approaching vehicles in the MMI display. In recognised critical situations, the system can warn the driver using a warning tone and, if necessary, give a brief jolt of the brakes.