Get Occupant safety -> PRE-SAFE system Guide for Mercedes GLC Class SUV First Generation (2015-2021)

Occupant safety 47

with a build corresponding to that of an adult

should not use the front passenger seat.

Instead, they should use a rear seat.

If the front passenger seat is occupied by a

person of smaller stature (e.g. a teenager or

small adult), the PASSENGER AIR BAG OFF

indicator lamp either lights up continuously

or remains off, depending on the result of the

classification.

The person is seated properly with a cor‐

rectly fastened seat belt.

The front passenger seat has been moved

as far back as possible.

WARNING Risk of injury or death when

the PASSENGER AIR BAG OFF indicator

lamp is lit

If the PASSENGER AIR BAG OFF indicator

lamp remains lit after the system self-test,

the front passenger air bag is deactivated. It

will not be deployed in the event of an acci‐

dent. In this case, the front passenger air bag

cannot perform its intended protective func‐

tion, e.g. when a person is seated in the front

passenger seat.

That person could, for example, come into

contact with the vehicle interior, especially if

the person is sitting too close to the cockpit.

If the front passenger seat is occupied,

always ensure that:

Be sure to also observe the following further

related subjects:

Child restraint system on the front passenger

seat (/ page 60).

If the PASSENGER AIR BAG OFF indicator

lamp is off: move the front passenger

seat as far back as possible, or the per‐

son of smaller stature should use a rear

seat.

PRE-SAFE^®system

PRE-SAFE^®(anticipatory occupant protec‐

tion)

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:

If the PASSENGER AIR BAG OFF indicator

lamp is lit continuously: the person of

smaller stature should not use the front

passenger seat.

The classification of the person in the

front passenger seat is correct and the

front passenger air bag is enabled or

deactivated in accordance with the per‐

son in the front passenger seat.

Tightening the seat belts on the driver's seat

and front passenger seat.

Closing the side windows.

48 Occupant safety

Reversing the PRE-SAFE^®system measures

Vehicles with sliding sunroof: Closing the

celed automatically when the vehicle pulls

away.

sliding sunroof.

If an accident did not occur, the pre-emptive

measures that were taken are reversed.

You will need to perform certain settings your‐

self.

Vehicles with memory function: Moving

the front passenger seat to a more favorable

seat position.

Vehicles with multicontour seat: Increas‐

ing the air pressure in the seat side bolsters

of the seat backrest.

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.

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:

If the seat belt pre-tensioning is not reduced,

move the seat backrest back slightly.

The locking mechanism releases.

when backing up

when the vehicle is towing a trailer and there

is a risk of a rear impact

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.

The system will not initiate any braking applica‐

tion in the following situations:

NOTE Damage caused by objects in the

footwell or behind the seat

whilst driving

when entering or exiting a parking space

while using Active Parking Assist

The automatic adjustment of the seat posi‐

tion may result in damage to the seat and/or

the object.

PRE-SAFE^®PLUS can implement the following

measures independently of each other:

Stow objects in a suitable place.

Tightening the seat belts on the driver's seat

and front passenger seat.

Increasing brake pressure when the vehicle

is stationary. This brake application is can‐

Occupant safety -> PRE-SAFE system for Your Mercedes GLC Class SUV First Generation (2015-2021)

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Occupant safety