Vauxhall Astra 2021, Owner'S Manual, Page: 169 / 259

Driving and operating 167
Detection zone
The system detects obstacles moving
at speeds faster than 2 mph and at a
maximum distance of 40 m.
Functionality
If an approaching obstacle is
detected while the vehicle is
reversing,
q
or
r
flashes in the Driver
Information Centre and an audible
signal is given.
System limitations
The system may not operate properly
in the following situations:
● towing trailer
● using a bicyle carrier on a towing
device
● extreme temperature changes
● the rear bumper damaged
● accumulation or projection of
external elements (e.g. mud, ice,
snow), application of stickers.
Fault
In the event of a fault,
C
appears in
the Driver Information Centre,
accompanied by a message and a
warning chime. Seek the assistance
of a workshop.
Traffic sign assistant
Speed limit
Using the camera at the top of the
windscreen and the speed limit
information of the vehicle's navigation
system, this system detects and
reads speed limit signs and end of
speed limit signs. Up to two speed
limit signs including supplementary
signs are displayed in the Driver
Information Centre. If several speed
limits are recognised, the vehicle may
analyse and display the valid speed
limit.
When a traffic sign for a certain area,
e.g. city or motorway, is recognised,
the corresponding speed limit will
also be displayed.
If the system is activated but does not
detect a speed limit sign, the following
sign is displayed:
If a speed limit is detected and the
vehicle exceeds it for the first time by
more than 3 mph, the speed is
displayed and flashes about ten
seconds.
Speed limiter
3
142.
Cruise control
3
140.