Vauxhall VECTRA Owner's Manual page 212

Front and re ar parking distance
sensors
3
The front and rear parking d istance
sensors mak es rev erse p arking easier by
measuring the distance between the
vehic le and an obstacle, and giving an
acoustic signal in the passenger
compartment.
210
The sy stem registers distance b y means of
four sensors in each of the front and rear
bumpers.
To act ivat e:
With the ignition switched on and in
vehicles with automatic transmission or
C VTronic, the front and rear parking
distance sensors are a utomatically
ena bled when rev erse gear is selected or
the selector lever is mov ed to the R
position.
The front and rear parking distance
sensors can also be a ctiv ated a t speeds of
less than 16 mph (25 km/h) by p ressing the
r button on the instrument panel.
The functional read iness of the sy stem is
indicated by the LED in the button lighting
up.