Mercedes-Benz GLA 250, Operator'S Manual

Page: 47 / 402

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PRE-SAFE
®
Sound: provided that the multi‐
media system is switched on, generates a
brief noise signal to stimulate the innate pro‐
tective mechanism of a person's hearing.
*
NOTE Damage caused by objects in the
footwell or behind the seat
The automatic adjustment of the seat posi‐
tion may result in damage to the seat and/or
the object.
#
Stow objects in a suitable place.
Reversing the PRE-SAFE
®
system measures
If an accident did not occur, the pre-emptive
measures that were taken are reversed.
You will need to perform certain settings your‐
self.
#
If the seat belt pre-tensioning is not reduced,
move the seat backrest back slightly.
The locking mechanism releases.
Function of PRE-SAFE
®
PLUS (anticipatory
occupant protection plus)
PRE-SAFE
®
PLUS can detect certain impacts,
particularly an imminent rear impact, and take
pre-emptive measures to protect the vehicle
occupants. These measures cannot necessarily
prevent an imminent impact.
PRE-SAFE
®
PLUS can implement the following
measures independently of each other:
R
Tightening the seat belts on the driver's seat
and front passenger seat.
R
Increasing brake pressure when the vehicle
is stationary. This brake application is can‐
celed automatically when the vehicle pulls
away.
If an accident did not occur, the pre-emptive
measures that were taken are reversed.
System limits
The system will not initiate any action in the fol‐
lowing situations:
R
when backing up
The system will not initiate any braking applica‐
tion in the following situations:
R
whilst driving
or
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when entering or exiting a parking space
while using Active Parking Assist
Automatic measures after an accident
Depending on the type and severity of the acci‐
dent, and depending on the vehicle's equipment,
the following measures can be implemented, for
example:
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Automatic braking (post-collision brake)
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Activating the hazard warning lights
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Triggering an automatic emergency call
(
/
page 222)
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Switching off the engine
To restart the vehicle, switch the ignition off
and switch it back on (
/
page 133).
Depending on the type and severity of the
accident, it is possible that the vehicle can
no longer be started.
Occupant safety 45