BMW M3 SEDAN Owner's Manual page 197

Warning function
If you leave the lane
If you leave the lane and if a lane marking has
been detected, the steering wheel vibrates in ac‐
cordance with the steering wheel vibration set‐
ting.
When the turn signal is switched on in the corre‐
sponding direction before changing the lane, a
warning is not issued.
Steering intervention
Depending on the equipment version: if, in the
speed range up to 130 mph/210 km/h a lane
marking is crossed, the system may intervene
with a brief active steering intervention in addi‐
tion to vibrating. The steering intervention helps
keep the vehicle in the lane. The steering inter‐
vention can be noticed on the steering wheel
and can be manually overridden at any time. Dur‐
ing an active steering intervention, the display in
the instrument cluster will blink.
Warning signal
Depending on the equipment version: in the
event of multiple active steering interventions by
the system within 3 minutes without the driver's
intervention at the steering wheel, an acoustic
warning will sound. A short warning signal will
sound at the second steering intervention. Be‐
ginning with the third steering intervention, an
continuous warning will sound.
In addition, a Check Control message is dis‐
played.
The warning signal and Check Control message
are an encouragement to pay closer attention to
the lane.
End of warning
For instance, the warning will be canceled in the
following situations:
▷ Automatically after a few seconds.
▷ When returning to your own lane.
Online Edition for Part no. 01405A1E4B0 - X/20
Safety
▷ When braking hard.
▷ When using the turn signal.
▷ If DSC Dynamic Stability Control intervenes.
System limits
Safety information
Warning
The system is designed to operate in certain
conditions and circumstances. Due to condi‐
tions or other factors, the system may not re‐
spond. There may be a risk of accident or risk
of damage to property. Actively intervene as
warranted. Refer to the information in this Own‐
er's Manual regarding the scope of the sys‐
tem's operation and limitations.
System limits of the sensors
Additional information:
▷ Cameras, refer to page 35.
Functional limitations
The system may not be fully functional in the fol‐
lowing situations:
▷ In the event of missing, worn, poorly visible,
merging, diverging, or multiple lane markings
such as in construction areas.
▷ When lane markings are covered in snow, ice,
dirt or water.
▷ In tight curves or on narrow lanes.
▷ When lane markings are covered by objects.
▷ When driving very close to the vehicle in front
of you.
▷ Up to 10 seconds after the start of the engine
via the Start/Stop button.
A Check Control message may be displayed
when the system is not fully functional.
CONTROLS
197