Get Occupant safety Guide for Mercedes GLA SUV Second Generation (2020-2026)

Brief overview of most important points

Basic information

Make sure that the following prerequisites in par-

ticular have been met so that the components of

the restraint system are able to provide the inten-

ded level of protection:

Sit correctly (/ page 97).

Fasten the seat belt correctly (/ page 98).

Function of the ü seat belt warning

lamp (/ page 100).

Function of the rear seat belt status dis-

play (/ page 100).

The 6 restraint system warning lamp has

gone out aer the self-test (/ page 99).

The PASSENGER AIR BAG indicator lamps dis-

play the correct status of the front passenger

airbag (/ page 101).

For clear understanding

The chapter "Occupant safety" includes informa-

tion on equipment, functions and behaviours that

contribute directly to safety of vehicle occupants.

The information is structured as follows:

The most important information in brief: in this

chapter, you are provided with an overview of

the relationship between the restraint system

and the correct behaviour of all vehicle occu-

pants.

Specic information: in further sections of the

chapter "Occupant safety", you can nd spe-

cic information on the equipment and func-

tions of the restraint system.

Keyword directory: you can also nd certain

subjects in this Owner's Manual using the key-

word directory.

Information on the following subjects, among oth-

ers, are not provided in the chapter "Occupant

safety":

Children in the vehicle (/ page 113)

Driving and driving safety systems

(/ page 321)

Stowage areas (/ page 186)

Dening generic terms clearly

In this Owner's Manual, the following generic

terms are used:

Occupant safety: comprises the components

and system functions which help to minimise,

as much as possible, the stresses on and con-

sequences for vehicle occupants during an

accident.

Restraint system: comprises those compo-

nents which, along with the vehicle structure,

help prevent vehicle occupants from poten-

tially coming into contact with parts of the

vehicle interior. The seat belts and airbags, for

example, are components of the restraint sys-

tem.

Child restraint system: you can nd all infor-

mation on this subject in the chapter "Children

in the vehicle" (/ page 113).

Be diligent

For the components of the restraint system to

provide the intended level of protection, it is

essential that your posture is correct and that the

seat belt is correctly fastened.

Occupant safety – Brief overview of most important points

F247 0074 02

Bear in mind that negligence when adjusting your

sitting position and fastening the seat belt may

have serious consequences. Be diligent and make

sure that all vehicle occupants are sitting cor-

rectly and have fastened their seat belts properly

before starting every journey (/ page 97).

Information on the correct seat position

The seat position must be correct in order for the

components of the restraint system to provide the

intended level of protection.

The seat position inuences both the protection

provided by the seat belt and the additional pro-

tection provided by the airbag.

A correct seat position in which the seat is nearly

perfectly upright and a correctly fastened seat

belt reduce the risks posed by the airbag when it

is deployed.

Keep space considerations in mind when choos-

ing a seat. With the seat in the correct, nearly

upright position, your head should not touch the

roof.

WARNING Risk of injury or death due to

an incorrect seat position

If you deviate from the correct seat position,

the airbag cannot provide its intended protec-

tive function.

Each vehicle occupant must make sure of the

following.

Put the seat in the correct position.

Fasten seat belts correctly. Pregnant

women must take particular care to

ensure that the lap belt never lies across

the abdomen.

Observe the following information.

In order for the restraint system to provide the

intended level of protection, observe the following

information:

Before starting your journey, adjust your seat

correctly (/ page 164).

When doing so, make sure you are able to fas-

ten your seat belt correctly. The shoulder belt

strap must be routed forward from the seat

belt outlet over the centre of your shoulder.

Keep your distance from the airbags, espe-

cially the front airbags. Set the driver's seat

and front passenger seat as far back as possi-

ble while making sure the seat belt is fastened

correctly.

If persons are sitting on the rear seats, vehicle

occupants should maintain an sucient dis-

tance to the parts of the vehicle interior in

front of them.

Make sure there are no people, animals or

objects between the vehicle occupants and an

airbag.

If you are the driver, observe the following

information on the correct position of the driv-

er's seat (/ page 164).

Only hold the steering wheel by the steering

wheel rim. This allows the driver's airbag to

fully deploy.

Assume a nearly upright sitting posture, with

your buttocks positioned as far back as possi-

ble in the gap between the seat cushion and

the seat backrest.

Your back must lie as atly and as rmly as

possible against the seat backrest.

Occupant safety – Brief overview of most important points

F247 0074 02

While driving, do not lean forward and do not

lean against the door or side window. You may

otherwise be in the deployment area of the

airbags.

Sit with their feet resting on the oor, if possi-

ble. Your thighs are slightly supported by the

seat cushion

Do not put your feet on the cockpit, for exam-

ple. Your feet may otherwise be in the deploy-

ment area of the airbag.

Fasten the seat belt correctly (/ page 98).

Notes on wearing the seat belt correctly

Always fasten your seat belt correctly before

starting a journey. A seat belt can only provide

the best level of protection if it is worn correctly.

WARNING Risk of injury or death due to

incorrectly fastened seat belt

If the seat belt is not worn correctly, it cannot

perform its intended protective function.

In addition, an incorrectly fastened seat belt

can also cause injuries, for example, in the

event of an accident or when braking or

changing direction suddenly.

Always ensure that all vehicle occupants

have their seat belts fastened correctly

and are sitting properly.

WARNING Risk of injury or death when

additional restraint systems are not used

for persons with a smaller stature

Persons under 1.50 m tall cannot wear the

seat belt correctly without a suitable addi-

tional restraint system.

Always secure persons under 1.50 m tall

in a suitable restraint system.

Observe the following information on the correct

seat position and posture (/ page 97).

Each vehicle occupant must observe the following

notes in particular:

The seat belt must not be twisted.

The shoulder belt strap must be routed

forward from the seat belt outlet over the

centre of your shoulder.

The shoulder belt strap should neither touch

your neck nor be routed under your arm or

behind your back.

The lap belt must be routed as low down

across the hips as possible.

In addition, push the lap belt down as far as

possible across your hips and pull tight with

the shoulder belt strap. Never route the lap

belt across your abdomen.

Pregnant women must also take particular

care with this.

Aer being tightened, the shoulder belt strap

and lap belt must t snugly against the body.

Avoid wearing bulky clothing, e.g. a winter

coat.

Never route the seat belt across sharp, poin-

ted, abrasive or fragile objects.

Only one person should use each seat belt at

any one time.

Occupant safety – Brief overview of most important points

F247 0074 02

Never secure objects with a seat belt if the

seat belt is also being used by one of the vehi-

cle's occupants.

Also ensure that no objects, e.g. a cushion,

are ever placed between a person and the

seat.

If you are driving with a child in the vehicle,

observe the information in the chapter "Children

in the vehicle" (/ page 113)

Observe the instructions for loading the vehicle

when securing objects, luggage or loads

(/ page 186).

Fastening seat belts

If the seat belt is pulled quickly or sharply, the

seat belt retractor locks. The seat belt strap can-

not be pulled out any further.

Always engage seat belt tongue 2 of the seat

belt into seat belt buckle

1 of the corre-

sponding seat.

NOTE Deployment of components of the

restraint system when the front passenger

seat is unoccupied and a seat belt is

buckled

When the front passenger seat is unoccupied

and the seat belt tongue of the seat belt is

engaged in the seat belt buckle, components

of the restraint system may deploy unnecessa-

rily on the front passenger side, e.g. the seat

belt tensioner.

Only buckle the seat belts as intended.

Function of the restraint system warning lamp

When the vehicle is switched on, a self-test is per-

formed, during which the 6 restraint system

warning lamp lights up. It goes out no later than a

few seconds aer the vehicle is started. The com-

ponents of the restraint system are then func-

tional.

Occupant safety – Brief overview of most important points

F247 0074 02

A malfunction has occurred in the restraint sys-

tem if:

the 6 restraint system warning lamp does

not light up or is lit continuously when the

vehicle is switched on

the 6 restraint system warning lamp lights

up continuously or repeatedly during a journey

If components of the restraint system have been

deployed, the 6 restraint system warning lamp

lights up continuously.

WARNING Risk of injury due to malfunc-

tions in the restraint system

Components in the restraint system may be

activated unintentionally or not deploy as

intended in an accident.

Have the restraint system checked and

repaired immediately at a qualied spe-

cialist workshop.

Plug-in hybrid: if the restraint system is malfunc-

tioning, the automatic high voltage emergency

shuto may not function.

DANGER Risk of fatal injury due to mal-

functioning automatic high-voltage emer-

gency shuto

In the event of an accident, the high-voltage

on-board electrical system may not be deacti-

vated as intended.

You may receive an electric shock if you touch

the damaged components of the high-voltage

on-board electrical system.

Have the automatic high-voltage emer-

gency shuto checked and repaired

immediately at a qualied specialist

workshop.

Aer an accident, switch o the vehicle

immediately.

Mercedes-Benz recommends that you have the

vehicle towed to a qualied specialist workshop.

Function of the seat belt warning lamp

The ü seat belt warning lamp in the Instru-

ment Display is a reminder that all vehicle occu-

pants must wear their seat belts correctly.

In addition, a warning tone may sound.

As soon as the driver and front passenger fasten

their seat belts, the seat belt warning goes out.

Function of the rear seat belt status display

The rear seat belt status display is only available

for certain countries.

When the vehicle is switched on, the rear seat

belt status display informs you for a certain

amount of time which rear seat belt is not fas-

tened.

100

Occupant safety – Brief overview of most important points

F247 0074 02

The status of the rear seat belt can be recognised

by the colour of the symbol in the driver's display:

Grey: the seat belt tongue of a rear seat belt is

not engaged in the seat belt buckle of the cor-

responding seat.

Green: the seat belt tongue of a rear seat belt

is engaged in the seat belt buckle of the corre-

sponding seat.

Every vehicle occupant must always fasten

their seat belt correctly before starting a jour-

ney.

Red: a vehicle occupant in the rear passenger

compartment has released the seat belt

buckle using the release button and may not

be properly secured.

If a vehicle occupant unfastens a seat belt in the

rear, the rear seat belt status display appears

again.

In addition, a warning tone may sound.

Function of the PASSENGER AIR BAG indicator

lamps (front passenger airbag)

Vehicles without automatic front passenger airbag

shuto have a special sticker axed to the side of

the cockpit on the front passenger side

(/ page 120).

The PASSENGER AIR BAG indicator lamps display

the status of the front passenger airbag.

If the front passenger seat is occupied or a child

restraint system is tted on the front passenger

seat, you must make sure both before, and also

during the journey, that the status of the front

passenger airbag is correct for the situation.

WARNING Risk of potentially fatal injuries

due to objects trapped under the front

passenger seat

Objects trapped under the front passenger

seat may interfere with the function of the

automatic front passenger airbag shuto or

damage the system.

Do not stow any objects under the front

passenger seat.

When the front passenger seat is occu-

pied, ensure that no objects have

become trapped beneath the front

passenger seat.

Self-test: when the vehicle is switched on, both

the PASSENGER AIR BAG ON and OFF indicator

lamps light up simultaneously for several seconds.

Occupant safety – Brief overview of most important points

101

F247 0074 02

Aer the self-test, you can determine the status of

the front passenger airbag as follows:

Front passenger airbag disabled: PASSENGER

AIR BAG OFF lights up continuously.

The front passenger airbag will not be

deployed in the event of an accident. If

PASSENGER AIR BAG OFF is lit, no one may

use the front passenger seat.

If a rearward-facing child restraint system is

tted on the front passenger seat,

PASSENGER AIR BAG OFF must be lit continu-

ously.

Front passenger airbag enabled: PASSENGER

AIR BAG ON lights up for up to 60 seconds or

until both the PASSENGER AIR BAG ON and

OFF indicator lamps go out.

The front passenger airbag may be deployed

during an accident. If the front passenger air-

bag is in this status, no rearward-facing child

restraint system may be tted on the front

passenger seat.

If you are driving with a child in the vehicle,

observe the information in the chapter "Chil-

dren in the vehicle" (/ page 113)

WARNING Risk of injury or death due to a

disabled front passenger airbag

The front passenger airbag is disabled when

the PASSENGER AIR BAG OFF indicator lamp

is lit.

A person in the front passenger seat could

then, for example, come into contact with the

vehicle interior, especially if the person is sit-

ting too close to the cockpit.

If the front passenger seat is occupied, always

ensure that:

the classication of the person in the front

passenger seat is correct and the front

passenger airbag is enabled or disabled in

accordance with the person in the front

passenger seat.

the front passenger seat has been moved

as far back as possible.

the person is seated correctly.

Both before and during the journey,

ensure that the status of the front

passenger airbag is correct.

Malfunction of the automatic front passenger air-

bag shuto

The PASSENGER AIR BAG OFF indicator lamp and

the 6 restraint system indicator lamp light up

simultaneously.

In this case, no one may use the front passenger

seat and no child restraint system may be tted

on the front passenger seat.

Have the automatic front passenger airbag shuto

checked and repaired immediately at a qualied

specialist workshop.

Disabling or enabling the front passenger airbag

The automatic front passenger airbag shuto can

disable or enable the front passenger airbag

according to the situation.

102

Occupant safety – Brief overview of most important points

F247 0074 02

This happens automatically as a result of the clas-

sication of the person or child restraint system

on the front passenger seat.

You cannot manually disable or enable the front

passenger airbag.

Information on the child restraint system

When tting a child restraint system, observe the

notes in "Children in the vehicle" (/ page 113).

Notes on the child restraint system on the front

passenger seat

WARNING Risk of injury or death due to

an enabled co-driver airbag

If the co-driver airbag is enabled, a child on

the co-driver seat may be struck by the co-

driver airbag during an accident.

NEVER use a rearward-facing child

restraint system on a seat with an ENA-

BLED FRONT AIRBAG. DEATH or SERI-

OUS INJURY to the CHILD can occur.

Also pay particular attention to the notes on rear-

ward-facing or forward-facing child restraint sys-

tems on the front passenger seat (/ page 118).

Information on the automatic functions of the

restraint system

Function of the automatic front passenger airbag

shuto

A person on the front passenger seat must

observe the following information:

Sit correctly (/ page 97).

Fasten the seat belt correctly (/ page 98).

The automatic front passenger airbag shuto can

disable or enable the front passenger airbag

according to the situation.

Make sure you observe the following information:

The status of the front passenger airbag, see

"Function of the PASSENGER AIR BAG indica-

tor lamps"(/ page 101).

When tting a child restraint system to the

front passenger seat, observe the vehicle-spe-

cic information (/ page 118).

Status of the front passenger airbag in relation to

the stature of the person:

Front passenger airbag disabled: PASSENGER

AIR BAG OFF lights up continuously.

Occupant safety – Information on the automatic functions of the restraint system

103

F247 0074 02

The front passenger airbag will not be

deployed in the event of an accident. If

PASSENGER AIR BAG OFF is lit, no one may

use the front passenger seat.

Front passenger airbag enabled: PASSENGER

AIR BAG ON lights up for up to 60 seconds or

until both the PASSENGER AIR BAG ON and

OFF indicator lamps go out.

The front passenger airbag may be deployed

during an accident. Observe the following

information on the correct seat position

(/ page 97).

Vehicles with rear seats: a person of smaller

stature should use a rear seat.

System limits

The front passenger airbag may otherwise be dis-

abled by mistake, for example, in the following sit-

uation:

The front passenger transfers their weight by

supporting themselves on a vehicle armrest.

The front passenger sits in such a way that

their weight is raised from the seat surface.

NOTE Deployment of components of the

restraint system when the front passenger

seat is unoccupied

In an accident, the components of the

restraint system may deploy unnecessarily on

the front passenger side if:

There are heavy objects on the front

passenger seat.

The seat belt tongue is engaged in the seat

belt buckle of the front passenger seat and

the front passenger seat is unoccupied.

Stow objects in a suitable place.

Only one person should use each seat

belt at any one time.

Depending on the detected accident situation, the

window airbag on the front passenger side may

deploy. The airbag is deployed regardless of

whether the front passenger seat is occupied.

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:

Tightening the seat belts on the driver's seat

and front passenger seat.

Closing the side windows.

Vehicles with sliding sunroof: closing the slid-

ing sunroof.

Vehicles with memory function: moving the

front passenger seat to a more favourable seat

position.

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.

104

Occupant safety – Information on the automatic functions of the restraint system

F247 0074 02

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.

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 yourself.

If the seat belt pre-tensioning is not reduced,

move the seat backrest slightly backwards.

The seat belt pre-tensioning releases.

Seat belt adjustment function

Vehicles with PRE-SAFE

: aer you have fastened

the seat belt of the front seat, it may adjust itself

against your body by pulling at the shoulder until

somewhat tight. Do not hold the seat belt tightly

while it is adjusting.

This function is a reminder that all vehicle occu-

pants must wear their seat belts correctly.

You can activate and deactivate the seat belt

adjustment function using the multimedia system

(/ page 105).

Activating/deactivating seat belt adjustment via

the multimedia system

Multimedia system:

Settings

Vehicle

Occupant protection

Activate or deactivate Belt adjustment.

Overview of the automatic measures aer an acci-

dent

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:

automatic braking (post-collision brake)

(/ page 105)

activating the hazard warning lights

triggering an automatic emergency call

(/ page 58)

switching o the engine

To start the vehicle again, switch the vehicle

o and on once more (/ page 247). Depend-

ing on the type and severity of the accident,

you may no longer be able to start the vehicle.

switching o the fuel supply

Plug-in hybrid: switching o the hybrid system

and high-voltage on-board electrical system

unlocking the vehicle doors

lowering the side windows

displaying the emergency guide in the central

display (/ page 59)

switching on the interior lighting

Function of the post-collision brake aer an acci-

dent

Depending on the accident situation, the post-col-

lision brake can minimise the severity of a further

collision or even avoid it.

Occupant safety – Information on the automatic functions of the restraint system

105

F247 0074 02

If an accident is detected, the post-collision brake

can initiate automatic braking. When the vehicle

has come to a standstill, the electric parking

brake is automatically applied.

The driver can cancel automatic braking by taking

the following actions:

braking more strongly than automatic braking

fully depressing the accelerator pedal with

force

Purpose and function of the restraint system

Overview of deployment situations (restraint sys-

tem)

In particular ensure the following conditions to

enable the components of the restraint system to

deploy their protective potential:

Seat correctly (/ page 97).

Fasten seat belts correctly (/ page 98).

Function of the seat belt warning lamp

(/ page 100).

Function of the rear seat belt status dis-

play (/ page 100).

The restraint system warning lamp 6 does

not light up aer the self-check (/ page 99).

The indicator lamps PASSENGER AIR BAG dis-

play the correct status of the front passenger

airbag (/ page 101).

Depending on the detected deployment situation,

the components of the restraint system can be

activated or deployed independently of each

other:

Seat belt tensioner: frontal impact, rear

impact, side impact, rollover

Driver's airbag, front passenger airbag: frontal

impact

Knee airbag: frontal impact

Side airbag: side impact

Window airbag: side impact, rollover, frontal

impact

The installation location of an airbag is identied

by the symbol AIRBAG (/ page 112).

Observe the information on how the restraint sys-

tem works (/ page 106).

Information on how the restraint system works

How the restraint system functions depends on

the severity of the impact detected and the appa-

rent type of accident.

For more information about types of accidents,

see "Overview of deployment situations"

(/ page 106).

The activation thresholds for the components of

the restraint system are determined based on the

evaluation of the sensor values measured at vari-

ous points in the vehicle. This process is pre-emp-

tive in nature. The triggering/deployment of the

components of the restraint system must take

place in good time at the start of the collision.

Factors which can only be seen and measured

aer a collision has occurred cannot play a deci-

sive role in airbag deployment. Nor do they pro-

vide an indication of airbag deployment.

The vehicle may be deformed signicantly without

an airbag being deployed. This is the case if only

106

Occupant safety – Purpose and function of the restraint system

F247 0074 02

parts which are relatively easily deformed are

aected and the rate of vehicle deceleration is

not high. Conversely, an airbag may be deployed

even though the vehicle suers only minor defor-

mation. If very rigid vehicle parts such as longitu-

dinal members are hit, this may result in su-

ciently high levels of vehicle deceleration.

Depending on the apparent type of accident and

the detected deployment situation, seat belt ten-

sioners and/or airbags supplement the protection

oered by a correctly worn seat belt.

When enabled, an airbag can provide additional

protection for the respective vehicle occupant.

Potential protection provided by each airbag:

Knee airbag: thigh, knee and lower leg

Driver's airbag, front passenger airbag: head

and ribcage

Window airbag: head

Side airbag: ribcage and pelvis

Vehicles with AMG Performance seat: the side air-

bag provides possible protection for the ribcage.

However, no system available today can com-

pletely eliminate injuries and fatalities in every

accident situation. In particular, the seat belt and

airbag generally do not protect against objects

penetrating the vehicle from the outside. It is also

not possible to completely rule out the risk of

injury caused by the airbag deploying.

Mercedes-Benz recommends that you have the

vehicle towed to a qualied specialist workshop

aer an accident. Take this into account, particu-

larly if a seat belt tensioner is triggered or an air-

bag deployed.

If the seat belt tensioners are triggered or an air-

bag is deployed, you will hear a bang, and a small

amount of powder may also be released:

The bang will not generally aect your hearing.

In general, the powder released is not hazard-

ous to health but may cause short-term

breathing diculties to persons suering from

asthma or other pulmonary conditions.

Provided it is safe to do so, leave the vehicle

immediately or open the window in order to

prevent breathing diculties.

Information on the limited protection provided by

the restraint system

Risk due to the incorrect behaviour of vehicle

occupants

Every vehicle occupant must make sure of the fol-

lowing in particular:

They observe the information on the correct

seat position (/ page 97).

There are no heavy, sharp-edged or fragile

objects in the pockets of their clothing. Store

such objects in a suitable place.

WARNING Risk of injury or death due to

incorrect seat position

The seat belt will not oer the intended level

of protection if you have not moved the seat

backrest to an almost vertical position.

In particular, you may slip under the seatbelt

and injure yourself.

Adjust the seat properly before begin-

ning your journey.

Occupant safety – Purpose and function of the restraint system

107

F247 0074 02

Always ensure that the seat backrest is

in an almost vertical position and that

the shoulder section of your seat belt is

routed across the centre of your shoul-

der.

Risk due to objects in the vehicle interior

Every vehicle occupant must make sure of the fol-

lowing in particular:

They observe the information on the correct

seat position (/ page 97).

There are no objects between the seat, door

and door pillar (B-pillar).

There are no hard objects, e.g. coat hangers,

hanging on the grab handles or coat hooks.

There are no heavy, sharp-edged or fragile

objects in the pockets of their clothing. Store

such objects in a suitable place.

WARNING Risk of injury or death due to

blocked seat belt buckle or seat belt

anchorage

Objects next to the front seat that block the

seat belt buckle or the moving seat belt

anchorage on the front seat impair the func-

tion of the seat belt tensioners.

Before starting the journey, make sure

that there are no objects around the seat

belt buckle or between the front seat

and door.

WARNING Risk of injury from objects in

the deployment area of an airbag

Objects in the deployment area of an airbag

can hinder or prevent the correct deployment

of the airbag.

The airbag may then deploy in an uncontrolled

manner and may even cause additional inju-

ries to the vehicle occupants by deploying.

This may be the case in particular if the airbag

is integrated into the seat.

Always stow and secure objects cor-

rectly.

Before commencing your journey, make

sure that no objects are stowed in the

deployment area of an airbag.

The installation location of an airbag is identied

by the AIRBAG (/ page 112) symbol.

Risk due to tting accessories

Do not attach accessories such as mobile naviga-

tion devices, mobile phones or cup holders, within

the deployment area of an airbag, e.g. on the

cockpit, on the door, on the side window or on the

side trim.

In addition, no connecting cables, tensioning

straps or retaining straps must be routed or

attached to the vehicle within the deployment

area of an airbag. Always comply with the acces-

sory manufacturer's installation instructions and,

in particular, the notes on suitable places for

installation.

108

Occupant safety – Purpose and function of the restraint system

F247 0074 02

WARNING Risk of injury or death due to

unsuitable protective covers

Due to unsuitable protective covers, the air-

bags cannot protect vehicle occupants as they

are designed to do.

You should only use protective covers

that have been approved for the corre-

sponding seat by Mercedes-Benz.

In addition, the function of the automatic front

passenger airbag shuto could be restricted due

to an unsuitable protective cover. If the front

passenger seat is occupied, ensure that the

PASSENGER AIR BAG indicator lamps display the

correct status of the front passenger airbag

(/ page 101).

Risk due to pets in the vehicle interior

WARNING Risk of accident and injury due

to animals le unsecured or unattended in

the vehicle

If you leave animals in the vehicle unattended

or unsecured, they could press buttons or

switches, for instance.

An animal may:

activate vehicle equipment and become

trapped, for example

switch systems on or o and endanger

other road users

Unsecured animals may be thrown about the

vehicle in the event of an accident, or sudden

steering and braking manoeuvres, and injure

vehicle occupants.

Never leave animals unattended in the

vehicle.

Always correctly secure animals while

driving, e.g. using a suitable animal car-

rier.

Risk due to modication, damage or wear to the

components of the restraint system

WARNING Risk of injury or death due to

modications to the restraint system

Vehicle occupants may no longer be protected

as intended if alterations are made to the

restraint system.

Never alter the parts of the restraint sys-

tem.

Never tamper with the wiring or any elec-

tronic component parts or their so-

ware.

If it is necessary to modify the vehicle to accom-

modate a person with disabilities, contact a quali-

ed specialist workshop.

Mercedes-Benz recommends that you use driving

aids which have been approved for your vehicle by

Mercedes-Benz.

Occupant safety – Purpose and function of the restraint system

109

F247 0074 02

WARNING Risk of injury or death due to

damaged or modied seat belts

Seat belts cannot provide protection in the fol-

lowing situations:

the seat belt is damaged, has been modi-

ed, is extremely dirty, bleached or dyed

the seat belt buckle is damaged or

extremely dirty

modications have been made to the seat

belt tensioner, seat belt anchorage or seat

belt retractor

Seat belts may sustain non-visible damage in

an accident, e.g. due to glass splinters.

Modied or damaged seat belts could tear or

fail in the event of an accident, for example.

Modied seat belt tensioners could acciden-

tally trigger or fail to function as intended.

Never modify the seat belt system, for

example the seat belt, seat belt buckle,

seat belt tensioner, seat belt anchorage

and seat belt retractor.

Make sure that the seat belts are undam-

aged, not worn and clean.

Always have the seat belts checked

immediately aer an accident at a quali-

ed specialist workshop.

Mercedes-Benz recommends that you use seat

belts which have been approved for your vehicle

by Mercedes-Benz.

The seat is designed for the standard three-point

seat belt. If you t a dierent multipoint seat belt,

for example a four-point seat belt, the restraint

system cannot provide the intended level of pro-

tection.

Depending on the type of vehicle, there may be

openings in the seat backrest. These openings

have no function.

WARNING Risk of injury or fatal injury due

to modied seat belt systems

If you feed seat belts through the opening in

the seat backrest, the seat backrest may be

damaged or may even break in the event of an

accident.

Only use the standard three-point seat

belt.

Never modify the seat belt system.

WARNING Risk of injury due to modica-

tions to the cover of an airbag

If you modify the cover of an airbag or ax

objects such as stickers to it, the airbag can

no longer function as intended.

Never modify the cover of an airbag.

Do not attach any objects to the cover.

The installation location of an airbag is identied

by the AIRBAG symbol (/ page 112).

WARNING Risk of injury due to malfunc-

tioning sensors in the door

The function of the airbags can be impaired

due to modications or incorrect work per-

formed on the doors or door trim, or if the

doors are damaged.

110

Occupant safety – Purpose and function of the restraint system

F247 0074 02

Never modify the doors or parts of the

doors.

Always have work on the doors or door

trim carried out at a qualied specialist

workshop.

Risk due to components of the restraint system

which have already been deployed

Mercedes-Benz recommends that you have the

vehicle towed to a qualied specialist workshop

aer an accident.

WARNING Risk of burns from hot airbag

components

The airbag parts are hot aer an airbag has

been deployed.

Do not touch the airbag parts.

Have a deployed airbag replaced at a

qualied specialist workshop as soon as

possible.

WARNING Risk of injury due to deployed

airbag

A deployed airbag no longer oers any protec-

tion.

Have the vehicle towed to a qualied

specialist workshop in order to have the

deployed airbag replaced.

Have deployed airbags replaced immediately.

WARNING Risk of injury or death from

deployed pyrotechnic seat belt tensioners

Pyrotechnic seat belt tensioners that have

been deployed are no longer operational and

are unable to perform their intended protec-

tive function.

Therefore, have deployed pyrotechnic

seat belt tensioners immediately

replaced at a qualied specialist work-

shop.

Seat belts

Releasing the seat belts

Press the release button in the seat belt

buckle and guide the seat belt back with the

seat belt tongue.

NOTE Damage caused by trapping the

seat belt

If an unused seat belt is not fully retracted, it

may become trapped in the door or in the seat

mechanism.

Always ensure that an unused seat belt

is fully retracted.

Occupant safety

111

F247 0074 02

Airbags

Overview of airbags

Knee airbag

Driver's airbag

Front passenger airbag

Window airbag

Side airbag

The installation location of an airbag is identied

by the AIRBAG symbol.

Observe the information in "Overview of deploy-

ment situations" (/ page 106).

112

Occupant safety

F247 0074 02

Occupant safety for Your Mercedes GLA SUV Second Generation (2020-2026)

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