Mercedes-Benz GLC 2017 Operator's Manual page 59

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PRE-SAFE takes the following measures
depending on the hazardous situation detected:
the front seat belts are pre-tensioned.
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if the vehicle skids, the side windows and the
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sliding sunroof are closed.
vehicles with the memory function for the
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front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable posi-
tion.
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
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when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
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the PRE-SAFE convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" (
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PRE-SAFE PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
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PRE-SAFE PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
®
uations, PRE-SAFE PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE
prevent an imminent collision.
The driver is not warned about the intervention
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of PRE-SAFE PLUS.
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PRE-SAFE PLUS does not intervene:
if the vehicle is backing up
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when the vehicle is towing a trailer and there
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is a risk of a rear-end collision
When driving, or when parking or exiting a park-
ing space with assistance from Active Parking
Assist, PRE-SAFE
brakes.
Function
PRE-SAFE
tions if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE
depending on the hazardous situation detected:
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slackens the belt
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The PRE-SAFE
celed:
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page 46).
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If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
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Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
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PLUS cannot
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Occupant safety
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PLUS will not apply the
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PLUS intervenes in certain situa-
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PLUS takes the following measures
if the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
if the radar sensor system detects that a rear-
end collision is imminent:
the brake pressure is increased if the driver
-
applies the brakes when the vehicle is sta-
tionary.
the seat belts are pre-tensioned.
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®
PLUS braking application is can-
if the accelerator pedal is depressed when a
gear is engaged
if the risk of a collision passes or is no longer
detected
if DISTRONIC PLUS indicates an intention to
pull away
Automatic measures after an acci-
dent
the hazard warning lamps are activated
the emergency lighting is activated
the vehicle doors are unlocked
the front side windows are lowered
vehicles with a memory function: the electri-
cally adjustable steering wheel is raised
the engine is switched off and the fuel supply
is cut off
vehicles with mbrace: automatic emergency
call
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