BMW Coupe 4 Series Owner's Manual page 119

▷ When using the turn signal.
System limits
The system may not be fully functional in the
following situations:
▷ In heavy fog, rain or snowfall.
▷ In the event of missing, worn, poorly visi‐
ble, merging, diverging, or multiple lane
markings such as in construction areas.
▷ When lane markings are covered in snow,
ice, dirt or water.
▷ In tight curves or on narrow lanes.
▷ When the lane markings are covered by
objects.
▷ When driving very close to the vehicle in
front of you.
▷ When driving toward bright lights.
▷ When the windshield in front of the interior
rearview mirror is fogged over, dirty or cov‐
ered with stickers, etc.
▷ During calibration of the camera immedi‐
ately after vehicle shipment.
Active Blind Spot Detection
The concept
Two radar sensors below the rear bumper
monitor the area behind and next to the vehicle
at speeds above approx. 30 mph/50 km/h.
The system indicates whether there are vehi‐
cles in the blind spot, arrow 1, or approaching
from behind on the adjacent lane, arrow 2.
I n f o r ma t i o n P r o v i d e d b y :
Online Edition for Part no. 01 40 2 960 520 - II/15
Safety
The lamp in the exterior mirror housing is dim‐
med.
Before you change lanes after setting the turn
signal, the system issues a warning in the sit‐
uations described above.
The lamp in the exterior mirror housing flashes
and the steering wheel vibrates.
Hints
Personal responsibility
The system does not serve as a substi‐
tute for the driver's personal judgment of the
traffic situation.
Be aware of the traffic situation and the vehi‐
cle's surroundings at all times, otherwise acci‐
dents are still possible despite all warnings.◀
At a glance
Button in the vehicle
Active Blind Spot Detection
Controls
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