BMW X1 Owner's Manual page 187

▷ In tight corners or on narrow roads.
▷ In the event of missing, worn, poorly visible,
merging, diverging, or multiple lane boun-
daries such as in construction areas.
▷ With lane boundaries that are covered in
snow, ice, dirt or water.
▷ With lane boundaries that are not white.
▷ With lane boundaries that are covered by
objects.
▷ When driving very close to the vehicle in
front of you.
▷ Up to 10 seconds after drive-ready state is
switched on via the Start/Stop button.
A Check Control message may be displayed
when the system is limited.
The system is inactive when the trailer power
socket is occupied or trailer towing is activated,
e.g., when using a trailer or rear bicycle rack. A
Check Control message is displayed.
Rear-end collision
preparation
Principle
Depending on the equipment and national-
market version, the rear-end collision prepara-
tion can react to vehicles approaching from be-
hind.
Depending on the national-market version, the
hazard warning flashers are switched on and
PreCrash functions are triggered where appli-
cable if a vehicle approaching at a certain
speed is detected.
Online Edition for Part no. 01405A8A536 - VI/23
Safety
The sensors monitor the area behind the vehi-
cle.
The rear-end collision preparation function is
activated automatically when you start driving
and is deactivated automatically in certain sit-
uations.
Safety information
Follow the safety information in the "Forward
Collision Mitigation" chapter.
Sensors
The rear-end collision preparation function is
controlled by the side, rear radar sensors.
Activating/deactivating the rear-
collision warning
The rear-collision warning is automatically ac-
tivated whenever you start driving.
The system is deactivated in the following sit-
uations:
▷ When driving in reverse.
▷ When the trailer power socket is occupied
or trailer towing is activated, e.g., when us-
ing a trailer or rear bicycle rack.
System limits
General information
Follow the system limits in the "Collision warn-
ing systems" chapter.
CONTROLS
187