Vauxhall Astra 2021 Owner's Manual page 147

The adaptive cruise control
automatically decelerates the vehicle
when approaching a slower moving
vehicle. It then adjusts the vehicle
speed to follow the vehicle ahead at
the selected following distance. The
vehicle speed increases or decreases
to follow the vehicle ahead, but will
not exceed the set speed. It may
apply limited braking with activated
brake lights.
If the vehicle ahead accelerates or
changes lane, the adaptive cruise
control progressively accelerates the
vehicle to return to the stored set
speed. If the driver operates the turn
lights to overtake a slower vehicle, the
adaptive cruise control allows the
vehicle to temporarily approach the
vehicle ahead to help passing it.
However, the set speed will never be
exceeded.
If the vehicle ahead is moving too
slowly and the selected following
distance cannot be maintained
anymore, a warning chime is given
and a message is displayed. The
message prompts the driver to take
back control of the vehicle. On
vehicles with manual transmission,
the system can brake the vehicle until
19 mph. On vehicles with automatic
transmission, the system can brake
the vehicle until a full stop. Depending
on version, the system can
automatically accelerate the vehicle
after a full stop.
9 Warning
The brake lamps come on if the
vehicle is slowed down by active
emergency braking.
If the brake lights fail, the system
does not operate.
Switching on the system
Press _ and make sure the Drive
Assist is activated in the Info Display.
Driving and operating
Press , successively until the
adaptive cruise control mode is
selected.
The adaptive cruise control screen is
displayed. The system is still not
activated.
Operation conditions
The system can be activated if the
following conditions are met:
● vehicle speed between 19 mph
and 112 mph for vehicles with
manual transmission, between
0 mph and 112 mph for vehicles
with automatic transmission
● driver's door closed
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