Mercedes-Benz GLA 180 Owner's Manual page 58

If the restraint system control unit detects a side
impact, the applicable components of the
restraint system are activated independently of
each other.
On vehicles with off-road comfort suspension, a
side impact or vehicle overturn can be detected.
The applicable components of the restraint sys-
tem are activated independently of each other
depending on the apparent type of accident.
Sidebags on the side on which an impact
R
occurs, independently of the seat belt ten-
sioner and seat belt usage
Vehicles with the automatic front-passenger
front airbag deactivation system: the sidebag
on the front-passenger side deploys under the
following conditions:
an occupant is detected in the front-
-
passenger seat or
the seat belt buckle tongue is engaged in
-
the belt buckle of the front-passenger seat
Windowbag on the side on which an impact
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occurs, independently of seat belt usage and
regardless of whether the front-passenger
seat is occupied
Seat belt tensioners, if the system determines
R
that deployment can offer additional protec-
tion for the vehicle occupants in this situation
Vehicles with off-road comfort suspension:
R
windowbags on the driver's and front-
passenger side in certain situations if the
vehicle overturns and if the system deter-
mines that deployment can offer additional
protection to that provided by the seat belt
i
Not all airbags are deployed in an accident.
The different airbag systems work independ-
ently of each other.
How the airbag system works is determined
by the severity of the accident detected,
especially the vehicle deceleration or accel-
eration, and the apparent type of accident:
frontal collision
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side impact
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vehicles with off-road comfort suspension:
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overturn
Occupant safety
®
PRE-SAFE (anticipatory occupant
protection)
Introduction
In certain hazardous situations, PRE-SAFE
takes pre-emptive measures to protect the vehi-
cle occupants.
Important safety notes
!
Make sure that there are no objects in the
footwell or behind the seats. There is a risk
that the seats and/or the objects could be
damaged when PRE-SAFE
Although your vehicle is equipped with PRE-
®
SAFE , the possibility of injury in the event of an
accident cannot be ruled out. Always adapt your
driving style to suit the prevailing road and
weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
Function
®
PRE-SAFE intervenes:
in emergency braking situations, e.g. when
R
BAS is activated
in critical driving situations, e.g. when physi-
R
cal limits are exceeded and the vehicle under-
steers or oversteers severely
when Active Brake Assist intervenes power-
R
fully
®
PRE-SAFE takes the following measures
depending on the hazardous situation detected:
the front seat belts are pre-tensioned
R
if the vehicle skids, the side windows and the
R
panorama sliding sunroof are closed
vehicles with the memory function: the front-
R
passenger seat is adjusted if it is in an unfav-
ourable position
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE
pre-tensioning. All settings made by PRE-SAFE
can then be reversed.
If the seat belt pre-tensioning is not reduced:
Move the seat backrest or seat back slightly
X
when the vehicle is stationary.
Seat belt pre-tensioning is reduced and the
locking mechanism is released.
Seat-belt adjustment is an integral part of the
®
PRE-SAFE convenience function. Information
55
®
®
is activated.
®
slackens the belt
®
Z