2023 MERCEDES-BENZ GLA Owners Manual

check engine horn open bonnet width transmission fluid warning light

Page 49 of 454

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�d�e�n�t
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Overview of the automatic measures aser an acci-
dent
Depending on the type and severity of the acci-
dent, and depending on the vehicle\bs equipment, the following measures may be implemented, for
example:
= automatic braking (post-collision brake)
= activating the hazard warning lamps
= triggering an automatic emergency call
( page 266)
= switching oM the engine
To start the vehicle again, switch the vehicle
oM and on once more ( page 144). Depend-
ing on the type and severity of the accident,
you may no longer be able to start the vehicle.
= switching oM the fuel supply
= unlocking the vehicle doors
= lowering the side windows
= displaying the emergency guide on the multi-
media system display
= switching on the interior lighting
Function of the post-collision brake aser an acci-
dent
Depending on the accident situation, the post-col- lision brake can minimise the severity of a further
collision or even avoid it.
If an accident is detected, the post-collision brake
can initiate automatic braking. When the vehicle has come to a standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking by taking
the following actions:
= Braking more strongly than automatic braking
= Fully depressing the accelerator pedal with
force
Purpose and function of the restraint system
Overview of deployment situations (restraint sys- tem)
Make sure that the following prerequisites in par-
ticular have been met so that the components of the restraint system are able to provide the inten-ded level of protection:
= Sit correctly ( page 39).
= Fasten the seat belt correctly ( page 40).
- Function of the seat belt warning lamp
( page 42).
= The u restraint system warning lamp is not
lit up aser the self-test ( page 41).
= The PASSENGER AIR BAG indicator lamps dis-
play the correct status of the front passenger air bag ( page 42).
Depending on the detected deployment situation, the components of the restraint system can beactivated or deployed independently of each
other:
= Emergency Tensioning Device: frontal impact,
rear impact, side impact, rollover
Occupant safety47

Page 50 of 454

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=Driver\bs air bag, front passenger air bag: fron-
tal impact
= Knee bag: frontal impact
= Side impact air bag: side impact
= Window curtain air bag: side impact, rollover,
frontal impact
The installation location of an air bag is identiNed
by the AIRBAG symbol ( page 53).
Observe the information on the function of the restraint system ( page 48).
Information on how the restraint system works
How the restraint system functions depends on
the severity of the impact detected and the appa- rent type of accident.
For more information about types of accidents,
see "Overview of deployment situations"
( page 47).
The activation thresholds for the components of
the restraint system are determined based on the evaluation of the sensor values measured at vari-
ous points in the vehicle. This process is pre-emp-
tive in nature. The triggering/deployment of the
components of the restraint system must take place in good time at the start of the collision.
Factors that can be seen and measured only aser
a collision has occurred cannot play a decisive
role in air bag deployment. Nor do they provide an indication of air bag deployment.
The vehicle may be deformed signiNcantly without
an air bag being deployed. This is the case if only
parts that are relatively easily deformed are aMec-
ted and the rate of vehicle deceleration is not
high. Conversely, an air bag may be deployed
even though the vehicle suMers only minor defor-
mation. If very rigid vehicle parts such as longitu-
dinal members are hit, this may result in suP-
ciently high levels of vehicle deceleration.
Depending on the apparent type of accident and
the detected deployment situation, Emergency
Tensioning Devices and/or air bags supplement
the protection oMered by a correctly worn seat
belt.
When enabled, an air bag can provide additional
protection for the respective vehicle occupant.Potential protection provided by each air bag:
= Knee bag: thigh, knee and lower leg
= Driver\bs air bag, front passenger air bag: head
and ribcage
= Window curtain air bag: head
= Side impact air bag: ribcage and pelvis*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.
However, no system available today can com-
pletely eliminate injuries and fatalities in every
accident situation. In particular, the seat belt and
air bag generally do not protect against objects penetrating the vehicle from the outside. It is alsonot possible to completely rule out the risk ofinjury caused by the air bag deploying.
Mercedes-Benz recommends that you have the
vehicle towed to a qualiNed specialist workshop
aser an accident. Take this into account, particu-
larly if a Emergency Tensioning Device is triggered
or an air bag deployed.
48Occupant safety

Page 51 of 454

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�o�r� �a�n� �a�i�r� �b�a�g� �i�s� �d�e�p�l�o�y�e�d�,� �y�o�u� �w�i�l�l� �h�e�a�r� �a� �b�a�n�g�,
�a�n

If the Emergency Tensioning Devices are triggered
or an air bag is deployed, you will hear a bang,
and a small amount of powder may also be released:
= The bang will not generally aMect your hearing.
= In general, the powder released is not hazard-
ous to health but may cause short-term breathing diPculties to persons suMering from
asthma or other pulmonary conditions.
Provided it is safe to do so, leave the vehicle
immediately or open the window in order to
prevent breathing diPculties.
Air bags and pyrotechnic Emergency Tensioning
Devices contain perchlorate material, which may require special handling or environmental protec-
tion measures. National guidelines regarding waste disposal must be observed. In California,
see https://dtsc.ca.gov/. Using the search func- tion, you will Nnd information on perchlorate, for
example.Information on the limited protection provided by the restraint system
Risk due to the incorrect behavior of vehicle occu-
pants
Every vehicle occupant must make sure of the fol- lowing in particular:
= They observe the information on the correct
seat position ( page 39).
= There are no heavy, sharp-edged or fragile
objects in the pockets of their clothing. Store
such objects in a suitable place.
&WARNING Risk of injury or death due to
an incorrect seat position
The seat belt does not oMer the intended level
of protection if you have not moved the seat backrest to an almost vertical position.
In particular, you could slip beneath the seat- belt and become injured.
Adjust the seat properly before begin-
ning your journey.Always ensure that the seat backrest is
in an almost vertical position and thatthe shoulder belt is routed across the center of your shoulder.
Risk due to objects in the vehicle interior
Every vehicle occupant must make sure of the fol-
lowing in particular:
= They observe the information on the correct
seat position ( page 39).
= There are no objects between the seat, door
and door pillar (B-pillar).
= There are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks.
= There are no heavy, sharp-edged or fragile
objects in the pockets of their clothing. Store
such objects in a suitable place.
&WARNING Risk of injury or death due to
blocked seat belt buckle or seat belt
anchorage
Objects next to the front seat that block the seat belt buckle or the moving seat belt
anchorage on the front seat impair the func- tion of the Emergency Tensioning Devices.
Occupant safety49

Page 52 of 454

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�t�h�a�t� �t�h�e�r�e� �a�r�e� �n�o� �o�b�j�e�c�t�s� �a�r�o�u�n�d� �t�h�e� �s�e�a�t
�b�e�l�t� �b�u�c�k�l�e� �o�r� �b�e�t�w

Before starting the journey, make sure
that there are no objects around the seat
belt buckle or between the front seat
and door.&WARNING Risk of injury from objects in
the deployment area of an airbag
Objects in the deployment area of an airbag
can hinder or prevent the correct deployment
of the airbag.
The airbag may then deploy in an uncontrolled manner and may even cause additional inju-
ries to the vehicle occupants by deploying.
This may be the case in particular if the airbag is integrated into the seat.
Always stow and secure objects cor-
rectly.Before commencing your journey, make
sure that no objects are stowed in the
deployment area of an airbag.
The installation location of an air bag is identiNed
by the AIRBAG ( page 53) symbol.
Risk due to installing accessories
Do not attach accessories such as mobile naviga-
tion devices, mobile phones or cup holders, within the deployment area of an air bag, e.g. on the
cockpit, on the door, on the side window or on the side trim.
In addition, no connecting cables, tensioning
straps or retaining straps must be routed or attached to the vehicle within the deployment
area of an air bag. Always comply with the acces- sory manufacturer\bs installation instructions and,
in particular, the notes on suitable places for installation.&WARNING Risk of injury or death due to
unsuitable protective covers
Unsuitable protective covers mean that air
bags can no longer protect vehicle occupants as they are designed to do.
Use only protective covers approved by
Mercedes-Benz for the seat in question.
In addition, the function of the automatic
passenger air bag deactivation may be restricted
by an unsuitable protective cover. If the front
passenger seat is occupied, ensure that the PASSENGER AIR BAG indicator lamps display thecorrect status of the front passenger air bag
( page 42).
Risk due to pets in the vehicle interior&WARNING Risk of accident and injury due
to animals les unsecured or unattended in
the vehicle
If you leave animals in the vehicle unattended or unsecured, they could possibly press but-
tons or switches.
An animal may: = Activate vehicle equipment and become
trapped, for example
= Switch systems on or oM and endanger
other road users
Unsecured animals may be thrown around in
the vehicle in the event of an accident or sud-
den steering and braking maneuvers and injure vehicle occupants in the process.
50Occupant safety

Page 53 of 454

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�d�r�i�v�i�n�g�,� �e�.�g�.

Page 54 of 454

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Page 55 of 454

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�i�n�g� �D�e�v�i�c�e�s
�P�y�r�o�t�e�c�h�n�i�c�

Page 56 of 454

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