BMW X3 2013 Owner's Manual page 121

System limits
Limits of ultrasonic measurement
The detection of objects can reach the physi‐
cal limits of ultrasonic measurement, e.g.:
▷ With tow bars and trailer hitches.
▷ With thin or wedge-shaped objects.
▷ With low objects.
▷ With objects with corners and sharp edges.
Low objects already displayed, e.g., curbs, can
move into the blind area of the sensors before
or after a continuous tone sounds.
High, protruding objects such as ledges may
not be detected.
False warnings
PDC may issue a warning under the following
conditions even though there is no obstacle
within the detection range:
▷ In heavy rain.
▷ When sensors are very dirty or covered in
ice.
▷ When sensors are covered in snow.
▷ On rough road surfaces.
▷ In large buildings with right angles and
smooth walls, e.g., in underground ga‐
rages.
▷ In heavy exhaust.
▷ Due to other ultrasound sources, e.g.,
sweeping machines, high pressure steam
cleaners or neon lights.
Malfunction
A Check Control message, refer to page 78, is
displayed in the instrument cluster.
On the Control Display, the areas in front of
and behind the vehicle are shaded. PDC has
failed. Have the system checked.
To ensure full operability:
▷ Keep the sensors clean and free of ice.
Online Edition for Part no. 01 40 2 926 047 - XI/13
Online Edition for Part no. 01 40 2 911 041 - VI/13
Driving comfort
▷ When using high-pressure washers, do not
spray the sensors for long periods and
maintain a distance of at least 12 in/30 cm.
Backup camera
The concept
The backup camera provides assistance in
parking and maneuvering backwards. The area
behind the vehicle is shown on the Control
Display.
Hints
Check the traffic situation as well
Check the traffic situation around the ve‐
hicle with your own eyes. Otherwise, an acci‐
dent could result from road users or objects lo‐
cated outside the picture area of the backup
camera.◀
At a glance
Button in the vehicle
Rearview camera
Controls
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