Signal chimes
When the vehicle approaches an obstacle located in the range of the ultrasonic sensors, there are
audible signal chimes. An intermittent signal chime means that a sufficiently short distance between
the vehicle and an obstacle is detected. The shorter the distance, the shorter the intervals between the
chimes. The signal chime will sound continuously if the obstacle is very close.
When there is an imminent risk of collision at the front area of the vehicle, the signal chimes beep at
the front of the vehicle. When there is a risk of imminent collision at the rear area of the vehicle, the
signal chimes beep at the rear of the vehicle.
If you continue to drive the vehicle closer to the obstacle despite a continuous signal chime, the
system will no longer be able to measure the distance.
The intermittent signal chime volume decreases after a few seconds if the distance remains the same.
The volume remains constant if the signal chime is continuous. As soon as the vehicle moves away
from an obstacle again, the intermittent signal chime switches off automatically. If the vehicle moves
towards an obstruction again, the intermittent signal chimes beep automatically.
Display
The graphic on the screen displays the scanned areas in several segments. The closer the vehicle
drives towards an obstacle, the closer the segment will move to the vehicle in the display. The collision
area has been reached at the latest when the second to last segment is displayed. Do not keep
driving!
Vehicles with PDC at the front and rear
Area of the vehicle
Distance of the
vehicle from an
obstacle
Signal tone Segment color if an
obstacle has been
detected
color display only)
(A)
(B)
(A)
(B)
Rear center
Rear side
Obstacle
not in the
vehicle’s
path
about 12 – 63 in.
(31 – 160 cm)
–
Grey
about 12 – 23 in.
(31 – 60 cm)
Front center
Front side
Rear center
Rear side
about 12 – 47 in.
(31 – 120 cm)
about 12 – 23 in.
(31 – 60 cm)
Obstacle in
the
vehicle’s
path
about 12 – 63 in.
(31 – 160 cm)
Intermittent
tone
Yellow
about 12 – 23 in.
(31 – 60 cm)
Front center
Front side
about 12 – 47 in.
(31 – 120 cm)
about 12 – 23 in.
(31 – 60 cm)
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