Mercedes-Benz S-Class 2020 Owner's Manual page 258

If you do not react to the warning, autonomous
braking can be initiated in critical situations.
In particularly critical situations, Active Brake
Assist can also initiate autonomous braking
directly. In this case, the warning lamp and warn‐
ing tone occur simultaneously with the braking
application.
If you apply the brake yourself in a critical situa‐
tion or apply the brake during autonomous brak‐
ing, situation-dependent braking assistance
occurs. The brake pressure increases up to max‐
imum full-stop braking if necessary.
If autonomous braking or situation-dependent
braking assistance has occurred, pop up
appears in the driver display and then automati‐
cally goes out after a short time.
If the autonomous braking function or the situa‐
tion-dependent braking assistance is triggered,
additional preventive measures for occupant
protection (PRE-SAFE
& WARNING Risk of accident due to limi‐
ted detection performance of Active
Brake Assist
Active Brake Assist cannot always clearly
identify objects and complex traffic situa‐
tions.
Active Brake Assist is only an aid. The driver
is responsible for maintaining a sufficiently
safe distance to the vehicle in front, vehicle
speed and for braking in good time.
Always pay careful attention to the traf‐
#
fic situation; do not rely on Active Brake
Assist alone.
Be prepared to brake or swerve if nec‐
#
essary.
1
®
) may also be initiated.
Driving and parking 255
% If Active Brake Assist is deactivated, æ
appears in the driver display.
If the system is unavailable or the functions
are restricted, Ä appears.
Also observe the system limits of Active Brake
Assist.
The individual subfunctions are available in
the following speed ranges:
The distance warning function issues a warning
in the following situations:
From approximately 30 km/h, if over several
R
seconds the distance maintained to the vehi‐
cle travelling in front is insufficient for the
driven speed, the L distance warning
lamp lights up in the driver's display.
From approximately 7 km/h, if your vehicle
R
is critically close to a vehicle, cyclist or
pedestrian, you will hear an intermittent
warning tone and the L distance warning
lamp lights up in the driver's display.
®
Vehicles with PRE-SAFE
the country, an additional haptic warning
: depending on