Even if the driver intentionally changes lanes using a turn signal without noticing another vehicle approaching, the function can provide assistance.
The function is active at speeds between 60-140 km/h (37-87 mph) on roads with clearly visible traffic lane markings/lines.
The lights in the door mirrors will flash while steering assistance is being provided, whether or not BLIS*2 is activated. An audible signal will also sound.
When the function is intervening, a message is displayed in the instrument panel.
Warning
Warnings and steering assistance due to an imminent collision always come very late.
Note
The function uses the vehicle's camera and radar sensor, which has certain general limitations.