Mercedes-Benz GLA Series Operator's Manual page 169

If you do not react to the warning, autonomous
braking can be initiated in critical situations.
In especially critical situations, Active Brake
Assist can initiate autonomous braking directly.
In this case, the warning lamp and warning tone
occur simultaneously with the braking applica‐
tion.
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.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recog‐
nize dangers ( page 161).
/
If autonomous braking or situation-dependent
braking assistance has occurred, display
appears in the multifunction display and then
automatically 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 ) may also be initiated.
Driving and parking 167
& WARNING Risk of an accident caused by
limited detection performance of Active
Brake Assist
Active Brake Assist cannot always clearly
identify objects and complex traffic situa‐
tions.
Always pay careful attention to the traf‐
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fic situation; do not rely on Active Brake
Assist alone. Active Brake Assist is only
an aid. The driver is responsible for
maintaining a sufficiently safe distance
1
to the vehicle in front, vehicle speed
and for braking in good time.
Be prepared to brake or swerve if nec‐
#
essary.
Also observe the system limits of Active Brake
Assist.