BMW 2 GRAN COUPE 2021 Series Owner's Manual page 188

CONTROLS
Overview
Sensors
The system is controlled by the following sen‐
sors:
▷ Radar sensors, side, rear.
Additional information:
Sensors of the vehicle, refer to page 37.
Switching on/off
The system is automatically active when the ve‐
hicle is turned on.
The system is deactivated in the following situa‐
tions:
▷ When driving in reverse.
System limits
System limits of the sensors
Additional information:
▷ Radar sensors, refer to page 38.
Functional limitations
The system may not be fully functional in the fol‐
lowing situations:
▷ When a vehicle is approaching at a speed
much faster than your own.
▷ The approaching vehicle is approaching
slowly.
PostCrash – iBrake
Principle
In the event of an accident, PostCrash can bring
the vehicle to a halt automatically without inter‐
vention by the driver in certain situations.
General information
PostCrash can reduce the risk of another colli‐
sion and subsequent consequences.
188
Safety
Online Edition for Part no. 01405A37F24 - VI/21
At standstill
After coming to a halt, the brake is released auto‐
matically.
Harder vehicle deceleration
In certain situations, it can be necessary to bring
the vehicle to a halt more quickly than the Brake
Assistant allows.
To do this, quickly apply extra force to the brake.
For a brief period, the braking pressure will be
higher than the braking pressure that is achieved
by the automatic braking function. Automatic
braking is interrupted.
Interrupting automatic braking
It can be necessary to interrupt automatic brak‐
ing in certain situations, for instance for an eva‐
sive maneuver.
Interrupt automatic braking:
▷ By pressing the brake pedal.
▷ By pressing the accelerator pedal.
Fatigue alert
Principle
The Fatigue Alert can detect decreasing alert‐
ness or fatigue of the driver during long, monoto‐
nous trips, for instance on highways. The system
recommends a break.
Safety information
Warning
The system cannot serve as a substitute for the
driver's personal judgment in assessing one's
physical state. An increasing lack of alertness or
fatigue may not be detected or not be detected
in time. There is a risk of accident. Make sure
that the driver is rested and alert. Adjust driving
style to traffic conditions.