BMW X5 2018 Owner's Manual page 147

Acute warning
If the turn signal is set while a vehicle is in the
critical zone, the steering wheel vibrates briefly
and the light in the exterior mirror housing
flashes brightly.
The warning stops when the turn signal is
switched off, or the other vehicle leaves the
critical zone.
Brief flashing
A brief flashing of the light during vehicle un‐
locking serves as system self-test.
System limits
Safety information
WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the
system limits. There is a risk of accidents or
risk of damage to property. Follow the informa‐
tion regarding the system limits and actively
intervene, if needed.◀
Functional limitations
The system may not be fully functional in the
following situations:
▷ When a vehicle is approaching at a speed
much faster than your own.
▷ In heavy fog, wet conditions, or snowfall.
▷ In tight curves or on narrow lanes.
▷ If the bumper is dirty, iced up, or covered,
for instance by stickers.
▷ If cargo protrudes.
A Check Control message is displayed when
the system is not fully functional.
Online Edition for Part no. 01402983801 - X/17
Safety
Brake force display
Concept
Additional brake lights indicate emergency
braking to the traffic behind. This can reduce
the risk of a rear-end collision.
General information
▷ During normal brake application, the outer
and inner top brake lights light up.
▷ During heavy brake application, the inner
lower brake lights additionally light up.
Active Protection
General information
The Active Protection safety package consists
of systems that are independent of each other:
▷ Alertness assistant.
▷ PreCrash.
▷ PostCrash.
Alertness assistant
Concept
The system can detect decreasing alertness or
fatigue of the driver during long, monotonous
trips, for instance on highways. In this situa‐
tion, it is recommended that the driver takes a
break.
Controls
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