BMW X1 Owner's Handbook Manual page 128

Controls
Dynamic brake lights
Principle
▷ Normal braking: brake lights illuminate.
▷ Severe braking: brake lights flash.
Shortly before the vehicle comes to a stand‐
still, the hazard warning lights are activated.
Deactivating the hazard warning lights:
▷ Accelerating.
▷ Press the hazard warning lights button.
Attentiveness assistant
Principle
The system can detect increasing inattentive‐
ness or tiring of the driver on long monotonous
drives, for example on motorways. In this situa‐
tion, it is recommended that you take a break.
Note
WARNING
The system does not take your personal
responsibility from you when you are estimat‐
ing your physical condition. Increasing inatten‐
tion or fatigue might not be detected, or not in
good time. Danger of accidents. Make sure
that the drive is rested and alert. Adapt driving
style to the driving conditions.◀
Function
The system is switched on every time the en‐
gine is started and cannot be switched off.
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After the start of the drive, the system is adap‐
ted to the driver so that an increase in inatten‐
tion or fatigue can be detected.
This process considers the following criteria:
▷ Personal driving style, for example, steer‐
ing.
▷ Drive conditions, for example, time of day,
duration of drive.
The system is active from approxi‐
mately. 70 km/h, 43 mph and can display a rec‐
ommendation to take a break
Recommendation to take a break
With increasing inattention or tiredness of the
driver, an instruction is shown on the control
display with the recommendation to take a
break.
A recommendation to take a break will only be
displayed once during an uninterrupted trip.
After a break, at the earliest another break rec‐
ommendation may be displayed after approxi‐
mately 45 minutes.
System limits
The function may be restricted in situations
such as the following and no warning or a
wrong one is triggered:
▷ If the time is wrongly set.
▷ If the speed driven falls considerably below
70 km/h, 43 mph.
▷ For sporty driving style, for example, with
heavy acceleration or fast cornering.
▷ In active drive situations, for example, fre‐
quent lane change.
▷ With bad road conditions.
▷ With high side-wind.
PostCrash
The system can automatically bring the vehicle
to a standstill in certain accident situations
without the involvement of the driver. The risk