BMW Z4 ROADSTER Owner's Manual page 180

CONTROLS
Depending on the national-market version, the
steering intervention is automatically active af-
ter every driving off.
Display in the instrument cluster
Different system statuses are displayed on
the instrument cluster, depending on vehicle
equipment and national-market version.
Icon Meaning
Indicator light illuminates green: Sys-
tem is switched on. A lane boundary
has been detected on at least one
side of the vehicle and the system
is ready to intervene. Warnings will
be issued. The system can perform
steering interventions.
Indicator light flashes green: System
is performing a steering intervention.
Warning function
If you leave the lane
If you leave the lane and if a lane boundary
has been detected, the steering wheel vibrates
in accordance with the steering wheel vibration
setting.
When the turn signal is switched on in the cor-
responding direction before changing the lane,
a warning is not issued.
Steering intervention
Depending on the equipment and national-
market version: if, in the speed range up to
130 mph/210 km/h a lane boundary is crossed,
the system may intervene with a brief active
steering intervention in addition to vibrating.
The steering intervention supports the driver in
keeping the vehicle within the lane. The steer-
ing intervention can be noticed on the steering
wheel and can be manually overridden at any
time. During an active steering intervention,
the display in the instrument cluster will flash.
180
Safety
Online Edition for Part no. 01405A88B63 - VI/23
For instance, the steering intervention will be
suppressed in the following situations:
▷ With hard accelerating or braking.
▷ When flashing.
▷ With hazard warning system switched on.
▷ In driving situation with high driving dynam-
ics.
▷ While Dynamic Stability Control regulates
driving stability.
▷ Immediately following a steering interven-
tion by the vehicle systems.
▷ When actively merging back to your own
lane after passing.
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 inter-
vention. Beginning with the third steering inter-
vention, a continuous warning will sound.
In addition, a Check Control message is dis-
played.
The warning signal and Check Control mes-
sage are an encouragement to pay closer at-
tention 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.
▷ With hard accelerating or braking.
▷ With hazard warning system switched on.
▷ When flashing.
▷ While Dynamic Stability Control regulates
driving stability.
▷ While Dynamic Stability Control is disabled.
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