Chery A1 2008 Operating Instructions Manual page 52

INTRODUCTION OF FUNCTIONS AND DESCRIPTION OF INDICATIONS OF THE VEHICLE
0.9m, the continuous alarm sound similar
to a whistle will be heard. When the
distance is between 0.8 and 0.6m, a
pressing alarm sound will be heard; when
the distance is between 0.6 and 0.4m, the
alarm sound will be more pressing than
ever. If further backing up the vehicle, the
English letter "P" will be seen to appear
through the rear view mirror and the alarm
sound will become more and more
pressing, which reminds the driver that
there is an obstacle behind only less than
0.4m from the vehicle tail and he/she
should stop safely.
Tip: the button on the buzzer of the
reversing radar can be used to adjust
volume of the buzzer.
Note: when backing up, it is safe to
maintain driving speed under 5km/h.
Sound alarm
Method
Range of
of Alarm sound
alarm
alarm
First Buzzer sounds for 40ms and
1.49m~0.9m
stage then stops for 500ms.
Second Buzzer sounds for 80ms and
0.89m~0.6m
stage then stops for 300ms.
Third Buzzer sounds for 380ms and
0.59m~0.3m
stage then stops for 120ms.
Fourth
<0.3m Buzzer constantly sounds.
stage
The object that the probe of the reversing
radar senses is the one most close to it.
Note that the bumper on a vehicle that has
high body may not be sensed.
Due to modifications in specifications, the
content in this manual may disagree with
actual vehicles, in which case, we thank
for your understanding.
Use a cloth to wipe or use water (low
pressure water) to wash off the snow or
mud adhered to surface of probe of the
reversing radar.