BMW X3 2.5i SAV 2005 - Manual (Page 47)

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46
Technology for comfort, convenience and
safety
PDC Park Distance Control*
The concept
PDC provides extra safety and convenience
during parking maneuvers. Signal tones indi-
cate the current distance to an object behind or
in front of your vehicle. Four ultrasonic sensors
in both the bumpers monitor the distance to the
nearest object.
The front and rear sensors on the corners have
a range of approx. 2 ft/60 cm. The two rear mid-
dle sensors have a range of approx. 5 ft/1.50 m
and the two front middle sensors of approx.
2.6 ft/80 cm.
PDC is a parking aid that can indicate
objects when they are approached
slowly, as is usually the case when parking.
Avoid approaching objects too fast, otherwise
the system may give warning of physical obsta-
cles too late.
<
If you tow a trailer, the rear sensors cannot take
any practical measurements. Therefore, they
do not switch on.
Automatic mode
In ignition key position 2, the system is auto-
matically activated after approx. one second
each time you shift into reverse or move the
selector-lever into position R. Wait for this short
time span before moving. The system switches
off when you shift out of reverse.
You can have a signal tone programmed
into the system to verify that the PDC is
active. <
Manual mode
In ignition key position 2, press the button; the
indicator lamp lights up.
Deactivating manual mode
Press the button again; the indicator lamp goes
out.
After driving a distance of more than approx.
160 ft/50 m or exceeding a speed of approx.
20 mph/30 km/h, the system switches off and
the indicator lamp goes out. You can reactivate
the system manually as needed.
Signal tones
The distance to an object behind the vehicle is
signaled, in accordance with the position, by an
intermittent tone from a speaker in the rear.
The distance to an object in front of the vehicle
is signaled by an intermittent tone from a loud-
speaker beneath the instrument cluster.
As the distance between vehicle and object
decreases, the intervals between the tones
become shorter. The signal tone becomes con-
tinuous once the distance to the nearest object
falls to below roughly 1 ft/30 cm.
The signal tone is canceled after approx. 3 sec-
onds when the distance to an object remains
constant during this time, if you are moving par-
allel to a wall, for instance.
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