Mercedes-Benz GL-Class: PRE-SAFE® (preventative occupantprotection) - Occupant safety - Safety - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: PRE-SAFE® (preventative occupantprotection)

WARNING The PRE-SAFE® system reduces the impact of 
The PRE-SAFE® system reduces the impact of an accident on vehicle occupants, as long as their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRESAFE ® system, the possibility of injury in the event of an accident cannot be ruled out. You should therefore always drive carefully and adapt your driving style to the prevailing road, weather and traffic conditions.

PRE-SAFE® takes preemptive measures to protect occupants in certain hazardous situations.

PRE-SAFE® intervenes:

in emergency braking situations when BAS intervenes
in critical driving situations, e.g. when physical limits are exceed and the vehicle understeers or oversteers severely PRE-SAFE® takes the following measures depending on the hazardous situation detected:

the front seat belts are pre-tensioned.
on vehicles with memory function for the front-passenger seat: the front-passenger seat is adjusted if it is in an unfavorable position.
if the vehicle skids, the side windows are closed so that only a small gap remains.
on vehicles with a sliding sunroof: if the vehicle skids, the sliding sunroof closes so that only a small gap remains.

If the hazardous situation passes without resulting in an accident, PRE-SAFE® slackens the belt pretensioning. All settings made by PRE-SAFE® can then be reversed.

If the seat belts are not released:

slightly, but Move the backrest or seat back slightly, but only when the vehicle is stationary.

The belt pretensioning is reduced and the locking mechanism is released.

WARNING Make sure that nobody can become trapped 
Make sure that nobody can become trapped as you adjust the seat.

footwell or behind the seats when resetting Make sure that there are no objects in the footwell or behind the seats when resetting the seats. There is a risk that the seats and/or the objects could be damaged.

More information about seat-belt adjustment, a convenience function integrated into PRE-SAFE®, can be found in the "Seat-belt adjustment" section.

    Problems with air bag deactivation system
    WARNING   If the indicator lamp illuminates and remains illuminated when the weight of a typical adult or someone larger than a small individual has been detected on the passenger s ...

    NECK-PRO head restraints
    The NECK-PRO head restraints increase protection to the driver's and front passenger's head and neck. To this end, the NECK-PRO head restraints on the driver's and front-passenger seats are moved ...

    See also:

    Connecting multiple devices
    NOTICE Do not plug non-audio devices into the USB port. You can connect multiple devices simultaneously to the portable media interface and switch between them using the touch screen. Select ...

    Replacing the vehicle battery
    WARNING Only install a battery of the same type and rating. Installing an incorrect battery may result in a fire and injury, or damage to the electrical system. If you are in any doubt when ...

    Towing your vehicle
    When towing your vehicle, all State (Provincial in Canada) and local regulations for towing must be followed. Incorrect towing equipment could damage your vehicle. Towing instructions are avai ...