Mercedes-Benz GLS 2023, Operator'S Manual

Page: 54 / 538

PRE-SAFE
®
system
Function of PRE-SAFE
®
(anticipatory occupant
protection)
PRE-SAFE
®
is able to detect certain critical driv-
ing situations and implement pre-emptive meas-
ures to protect the vehicle occupants.
PRE-SAFE
®
can implement the following meas-
ures independently of each other:
R
Tightening the seat belts on the driver's seat
and front passenger seat.
R
Closing the side windows.
R
Vehicles with sliding sunroof: closing the slid-
ing sunroof.
R
Vehicles with memory function: moving the
front passenger seat to a more favorable seat
position.
R
Vehicles with memory function in the rear
passenger compartment: moving the outer
rear passenger compartment seats to a more
favorable seat position.
R
Vehicles with multicontour seat: increasing the
air pressure in the seat side bolsters of the
seat backrest.
R
PRE-SAFE
®
Sound: provided that the multime-
dia system is switched on, generating a brief
noise signal to stimulate the innate protective
mechanism of a person's hearing.
*
NOTE Damage caused by objects in the
footwell or behind the seat
The automatic adjustment of the seat position
may result in damage to the seat and/or the
object.
#
Stow objects in a suitable place.
Backing up 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 yourself.
#
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 occu-
pant protection plus)
PRE-SAFE
®
PLUS can detect certain impacts, par-
ticularly an imminent rear impact, and take pre-
emptive measures to protect the vehicle occu-
pants. These measures cannot necessarily pre-
vent 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 canceled
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
or
52 Occupant safety