BMW 550i xDrive Gran Turismo 2010 - Manual (Page 112)

Radar sensor
Position
Radar sensor
Dirty or covered sensor
A dirty or covered sensor may hinder the detec‐
tion of vehicles.
▷ If necessary, clean the radar sensor. Re‐
move layers of snow and ice carefully
▷ Do not cover the view field of the radar sen‐
sor.
Malfunction
The system cannot be activated if the sensor is
not aligned correctly. This may be caused by
damage incurred during parking, for example.
A message is displayed if the system fails.
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communication
Commission regulations. Operation is governed
by the following:
FCC ID:
▷ OAYARS3-A
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
▷ This device may not cause harmful interfer‐
ence, and
▷ this device must accept any interference re‐
ceived, including interference that may
cause undesired operation.
Any unauthorized modifications or changes to
these devices could void the user's authority to
operate this equipment.
Collision warning with
braking function*
The concept
The system issues a two-phase warning of a
danger of collision at speeds above approx.
10 mph/15 km/h.
The collision warning is available even if cruise
control has been deactivated.
It responds to stationary or moving objects that
are within the detection range of the radar sys‐
tem.
When the vehicle is intentionally brought into
contact with an object, the collision warning is
delayed to avoid false warnings.
Warning stages
Prewarning
This warning is issued, for example, when there
is the impending danger of a collision or the dis‐
tance to the vehicle ahead is too small.
Acute warning with braking function
Warning of the imminent danger of a collision
when the vehicle approaches another object at
a relatively high differential speed.
The acute warning prompts the driver to inter‐
vene and, if there is the danger of a collision, is
accompanied by a braking intervention.
The braking intervention is executed with lim‐
ited braking force and for a brief period only. The
intervention cannot bring the vehicle to a com‐
plete standstill.
The braking intervention is executed only if
DSC
Dynamic Stability Control, refer to page 101, is
switched on.
Adapting your speed and driving style
The acute warning does not relieve the
driver of the responsibility to adapt his or her
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Driving comfort