
PARKING SENSORS
The HSV Park ing sensor s ys tem as sists the driver wh ile reversing i nto a park ing space by warnin g of obstacles at
the rear of the vehicle. Please remember that there is no substitute for driver care while reversing. The
responsibility for recognising and assessing obstacles remains with the driver. Reversing safely can only
be achieved by adopting a responsible driving style. A prompt warning is only possible if the vehicle is
reversed slowly.
The parking sensor system switches on automatically when the ignition is on and reverse gear is selected . This is
indicated by a single, brief tone when reverse is selected. An obstacle is recognised from approximately 120 cm
between t he obs tacle a nd the r ear bumper . If this dist ance is r educed the f reque nc y of warn ing ton es will inc rease.
The tone will rep eat f aster and f aster until it b ecom es a contin uous tone a t wh ich poi nt the dist ance t o the ob stacle
will be less than 30 cm.
An overri de s witch has b ee n provid ed to s witch of f the s ystem to avoid f alse a larm ing when a tr ailer or b icyc le rack
is attached to the vehicle. The override switch is located in the centre console.
PARKING SENSOR SYSTEM DIAGNOSTICS
Normal Operation
In norm al operation, with no obstacles within two m etres of the rear of the vehicle, the parking sensor will issue a
single short tone (0.5 sec) when reverse gear is first selected with ignition on. If there are obstacles behind the
vehicle then the audible will be a series of beeps or a continuous tone dependant on distance to object. Refer to
table 1.
Tone on Tone off duration depending on distance to obstacle Tone on
75 ms 75 ms
Obstacle Distance Tone frequency Tone On Tone Off
30 cm 1200 Hz Continuous
40 cm 1200 Hz 75 ms 75 ms
60 cm 1200 Hz 75 ms 150 ms
80 cm 1200 Hz 75 ms 225 ms
100 cm 1200 Hz 75 ms 300 ms
120 cm 1200 Hz No tone
Table 1
Fault Diagnosis
1. No Tone At Switch On
If no tone is heard when reverse gear selected with ignition on, check park sensor override switch located in the
centre console. If changing switch position does not result in switch on tone, check operation of reverse lights –
parking sensor is powered from the reverse lamp circuit. If park lamps OK, then check condition of park sensor
harness connection at right hand tail lamp connector. The red lead connects to the reverse lamp circuit (for 12V
into park sensor module) and the brown lead connects to the lamps ground circuit.
2. Short High Tone Followed By Continuous Low Tone
W hen reverse gear is selec ted with ignition on, a shor t high to ne ma y be heard f ollowed b y a contin uous low tone .
This indicates that the park sensor system self diagnosis has detected a problem. Switch off the ignition and
remove the system coding plug from its socket to enter s ystem diagnostics. T he system coding plug is located on
the park sensor wiring har ness between the left hand tail lam p and the park sensor module. The plug is sim ilar in
appearance to an automotive fuse but contains a resistor. Do not replace this plug with a fuse.