Vauxhall Astra Owner's Manual page 182

Parking distance se nsors
Parking distance sensors make rev erse
parking easier by measuring the distance
between the rear of the vehicle a nd an
obstacle through ultrasonic reflection a nd
warning you with an a coustic signal in the
passenger com partment.
The system record s the distance using four
sensors in the rear bumper.
When the ig nition is sw itched on, the
parking distance sensors are autom atically
enab led w hen reverse gear is selected or
the selector lev er is moved to R in vehicles
with a utoma tic transm ission. Readiness for
opera tion is indicated by brief acoustic
alarm.
If the vehicle slowly gets close to an
obstacle w hile rev ersing, an intermittent
acoustic signal is audible in the passenger
compartment when the vehicle tail is less
than one m etre from the obstacle. The
interval between the signals becomes
shorter as the distance is reduced. If the
distance is less than 30 c m, a continuous
signa l is aud ible.
180
3
Under certain circumstances, v arious
reflective surfaces on objects or clothing
as well as ex ternal noise sources may
cause the system to fail to d etec t
obstacles. For this reason, care must be
taken w hen reversing even if the parking
distance sensors a re opera tional. This is
of particular importance when in the
vicinity of p edestrians.
Towi ng eq uipment, c arav an / trailer
tow ing
If towing equipment is retroa ctiv ely fitted
on the vehicle, the system must be set to
the appropriate v ehicle length by a
workshop. We recommend a Vauxhall
Authorised Repa irer.
Fitti ng rear load racks 3
Rear load rack s, e. g. bicy cle ra cks, fitted
nea r the sensors could disrupt the system .
Fault
If a sy stem fault occurs, a continuous
acoustic signal is sounded at a dista nce of
one metre from the obstacle. Hav e the
cause of the fault remedied . We
recommend that you consult a Vauxhall
Authorised Repa irer. The sy stem's
integrated self-diagnostics allows faults to
be quickly remedied .
In order to avoid operationa l problems or
erroneous information, the sensors m ust be
undamag ed a nd free of soiling, snow and
ice.