MERCEDES-BENZ GLE 2023 Workshop Manual

Function of the rear seat belt status display
The rear seat belt status display on the driver\bs
display is a reminder that all vehicle occupants must wear their seat belts correctly.
In addition, a warning tone may sound.
If a person unfastens a seat belt in the rear
passenger compartment while the vehicle is
motion, the rear seat belt status display will appear again.
Indicator on the driver\bs display
Every time the vehicle is switched on, the rear
seat belt status display will provide information for
a certain amount of time indicating which rear
seat belt is not fastened.
Example: vehicle with three rear seats
You can determine the status of the rear seat belt
by the color of the seat symbol on the driver\bs dis- play as follows:
= Grey: the rear seat belt is not fastened.
= Green: the seat belt tongue of a rear seat belt
is engaged in the seat belt buckle of the dis- played seat.
= Red: the person in the rear seat has unfas-
tened his/her seatbelt.
Function of the PASSENGER AIR BAG indicator
lamps (front passenger air bag)
The PASSENGER AIR BAG indicator lamps display
the status of the front passenger air bag.
If the front passenger seat is occupied or a child
restraint system is installed on the front
passenger seat, you must make sure, both before
and during a journey, that the status of the front
Occupant safety !

passenger air bag is correct for the current situa-
tion.&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 air bag shuto"M 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.
A"ser the self-test, you can determine the status of
the front passenger air bag as follows:
= Front passenger air bag disabled: PASSENGER
AIR BAG OFF lights up continuously.
The front passenger air bag 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 installed on the front passenger seat,
PASSENGER AIR BAG OFF must be lit continu-
ously.
= Front passenger air bag enabled: PASSENGER
AIR BAG ON lights up for up to 60 seconds or
both the PASSENGER AIR BAG ON and OFF
indicator lamps do not light up.
The front passenger air bag may be deployed during an accident. If the front passenger air
bag has this status, no rearward-facing child restraint system may be installed on the front
passenger seat.\bIf you are driving with a child in the vehicle, observe the information in the chapter "Chil-
dren in the vehicle" (  page 61)&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"Ncation 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.50Occupant safety !

Malfunction of the automatic front passenger air
bag shuto"M
The PASSENGER AIR BAG OFF indicator lamp and
the restraint system indicator lamp u light up
simultaneously.
In this case, no one may use the front passenger seat and no child restraint system may be instal-
led on the front passenger seat.
Have the automatic front passenger air bag shut-
o"M checked and repaired immediately at a quali-
"Ned specialist workshop.
Be sure to also observe the following further rela-
ted subjects:
= Child restraint system on the front passenger
seat (  page 65)
Deactivating or activating the front passenger air
bag
The automatic front passenger air bag shuto"M can
activate or deactivate the front passenger air bag
according to the situation.
This happens automatically as a result of the clas-
si"Ncation of the person or child restraint system
on the front passenger seat.
You cannot manually activate or deactivate the front passenger air bag.
Also observe the following information:
= Status of the front passenger air bag: see
"Function of the PASSENGER AIR BAG indica-
tor lamps" (  page 49)
= Notes on using the front passenger seat: see
"Information on automatic front passenger air
bag shuto"M" ( page 52)
= If you are driving with a child in the vehicle,
observe the chapter "Children in the vehicle"(  page 61)
Information on the child restraint system
When installing a child restraint system, observe
the notes in "Children in the vehicle"
(  page 61).
Notes on the child restraint system on the front
passenger seat&WARNING Risk of injury or fatal injuries if
the front passenger air bag is enabled
If the front passenger air bag is enabled, a
child on the front passenger seat may be struck by the front passenger air bag in theevent of an accident.
NEVER use a rearward-facing childrestraint system on a seat with an ENA-
BLED FRONT AIR BAG. This can result in
the DEATH of or SERIOUS INJURY to the CHILD.
Also pay particular attention to the notes on rear-
ward-facing or forward-facing child restraint sys- tems on the front passenger seat (  page 65).
Occupant safety !

Information on the automatic functions of therestraint system
Function of the automatic front passenger air bag
shuto"M
A person on the front passenger seat must
observe the following information:
= Sit correctly (  page 45).
= Fasten the seat belt correctly (  page 46).
The automatic front passenger air bag shuto"M can
activate or deactivate the front passenger air bag
according to the situation.
Make sure you observe the following information: = Status of the front passenger air bag: see
"Function of the PASSENGER AIR BAG indica-
tor lamps" (  page 49).
= When installing a child restraint system on the
front passenger seat, observe the vehicle-spe-ci"Nc information (  page 65).
Status of the front passenger air bag in relation to
the stature of the person:
= Front passenger air bag deactivated:
PASSENGER AIR BAG OFF lights up continu-
ously.
The front passenger air bag 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 air bag activated:
PASSENGER AIR BAG ON lights up for up to
60 seconds or neither the PASSENGER AIR BAG ON nor OFF indicator lamps light up.
The front passenger air bag may be deployed
in the event of an accident. Observe the infor- mation on the correct seat position
(  page 45).
Vehicles with rear seats: a person of smaller
stature should use a rear seat.System limits
The front passenger air bag may be deactivated
by mistake, for example, in the following situation:
= 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 therestraint 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.
Store objects in a suitable place.Only one person should use each seat
belt at any one time.52Occupant safety !

Depending on the detected accident situation, thewindow curtain air bag on the front passenger
side may deploy. The air bag is deployed regard-
less of whether the front passenger seat is occu-
pied.
Function of PRE-SAFE n
(anticipatory occupant
protection)
PRE-SAFE n
is able to detect certain critical driv-
ing situations and implement pre-emptive meas-
ures to protect the vehicle occupants.
PRE-SAFE n
can implement the following meas-
ures independently of each other:
= Tightening the seat belts on the driver\bs 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 favorable seat
position.
= Vehicles with multicontour seat: increasing the
lateral support by in"Oating the seat side bol-
sters of the seat backrest.
= PRE-SAFE n
Sound: provided that the multime-
dia system is switched on, generating a brief
noise signal to stimulate the innate protective
mechanism of a person\bs 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.
Reversing the PRE-SAFE n
system measures
If an accident did not occur, the pre-emptive
measures that were taken will be 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 will release.Function of PRE-SAFE n
PLUS (anticipatory occu-
pant protection plus)
PRE-SAFE n
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 n
PLUS can implement the following
measures independently of each other:
= Tightening the seat belts on the driver\bs seat
and front passenger seat.
= Increasing brake pressure when the vehicle is
stationary. This brake application will be can-
celed automatically when the vehicle pulls
away.
If an accident did not occur, the pre-emptive
measures that were taken will be reversed.
System limits
The system will not initiate any action in the fol- lowing situations:
= when the vehicle is backing up
or
Occupant safety !

=when the vehicle is towing a trailer and there
is a risk of a rear impact
The system will not initiate any brake application
in the following situations:
= while you are driving
or
= when you are entering or exiting a parking
space while using Active Parking Assist
Function of PRE-SAFE n
Impulse Side
If an imminent side impact is detected, PRE-
SAFE n
Impulse Side can pre-emptively move the
front seat vehicle occupant\bs upper body towards
the center of the vehicle. It does this by rapidly
in"Oating an air cushion in the outer seat side bol-
ster of the seat backrest on the side on which the impact is anticipated. This increases the distance
between the door and the vehicle occupant.
If PRE-SAFE n
Impulse Side has been deployed or
is faulty, a display message reading PRE-SAFE
Pulse Side Inoperative See Operator's Man-
ual ( page 469)will appear.
Seat belt adjustment function
Vehicles with PRE-SAFE n
: a"ser 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 tightlywhile 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 54).
Activating/deactivating seat belt adjustment via
the multimedia system
Multimedia system:
4 © 5
Settings 5
Vehicle
5 Occupant Protection
Activate or deactivate Belt adjustment.Overview of the automatic measures a"ser an acci-
dent
Depending on the type and severity of the acci-
dent, and depending on the vehicle\bs equipment, the following measures may be implemented, for
example:
= automatic braking (post-collision brake)
= activating the hazard warning lamps
= triggering an automatic emergency call
(  page 360)
= switching o"M the engine
To start the vehicle again, switch the vehicle
o"M and on once more (  page 172). Depend-
ing on the type and severity of the accident,
you may no longer be able to start the vehicle.
= switching o"M the fuel supply
= Plug-in hybrid: switching o"M the hybrid system
and high-voltage on-board electrical system
= unlocking the vehicle doors
= lowering the side windows
= displaying the emergency guide on the central
display
54Occupant safety !

=switching on the interior lighting
Function of the post-collision brake a"ser 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.
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)
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 45).
= Fasten the seat belt correctly (  page 46).
- Function of the seat belt warning lamp
(  page 48).
- Function of the rear seat belt status dis-
play (  page 49).
= The u restraint system warning lamp is not
lit up a"ser the self-test (  page 47).
= The PASSENGER AIR BAG indicator lamps dis-
play the correct status of the front passenger air bag (  page 49).
Depending on the detected deployment situation,
the components of the restraint system can be
activated or deployed independently of each
other:
= Emergency Tensioning Device: frontal impact,
rear impact, side impact, rollover
= Driver\bs air bag, front passenger air bag: fron-
tal impact
= Knee bag: frontal impact
= Side impact air bag: side impact
= Window curtain air bag: side impact, rollover,
frontal impact
= PRE-SAFE n
Impulse Side: side impact
The installation location of an air bag is identi"Ned
by the AIRBAG symbol (  page 60).
Observe the information on the function of the
restraint system (  page 55).
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.
Occupant safety !

For more information about types of accidents,
see "Overview of deployment situations"
(  page 55).
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 that can be seen and measured only a"ser
a collision has occurred cannot play a decisive
role in air bag deployment. Nor do they provide an indication of air bag deployment.
The vehicle may be deformed signi"Ncantly without
an air bag being deployed. This is the case if only parts which are relatively easily deformed are a"Mected and the rate of vehicle deceleration is
not high. Conversely, an air bag may be deployed
even though the vehicle su"Mers only minor defor-
mation. If very rigid vehicle parts such as longitu- dinal members are hit, this may result in su"P-
ciently high levels of vehicle deceleration.Depending on the apparent type of accident and
the detected deployment situation, Emergency
Tensioning Devices and/or air bags can supple- ment the protection o"Mered by a correctly worn
seat belt.
When enabled, an air bag can provide additional
protection for the respective vehicle occupant.
Potential protection provided by each air bag:
= Knee air bag: thigh, knee and lower leg
= Driver\bs air bag, front passenger air bag: head
and ribcage
= Window air bag: head
= Side air bag: ribcage and pelvis
However, no system available today can com-
pletely eliminate injuries and fatalities in every
accident situation. In particular, the seat belt and
air bag 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 air bag deploying.
Mercedes-Benz recommends that you have the
vehicle towed to a quali"Ned specialist workshop
a"ser an accident. Take this into account, particu-larly if an Emergency Tensioning Device is trig-
gered or an air bag deployed.
If the Emergency Tensioning Devices 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"Mect your hearing.
= In general, the powder released is not hazard-
ous to health but may cause short-term
breathing di"Pculties to persons su"Mering 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"Pculties.
Air bags and pyrotechnic Emergency Tensioning Devices contain perchlorate material, which may require special handling or environmental protec-
tion measures. National guidelines regarding
waste disposal must be observed. In California,
see the https://dtsc.ca.gov/. Using the search function, you will "Nnd information on perchlorate,
for example.56Occupant safety !

Information on the limited protection provided bythe restraint system
Risk due to the incorrect behavior of vehicle occu-
pants
All vehicle occupants must make sure of the fol-
lowing in particular:
= They observe the information on the correct
seat position (  page 45).
= 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
an incorrect seat position
The seat belt does not o"Mer the intended level
of protection if you have not moved the seat backrest to an almost vertical position.
In particular, you could slip beneath the seat- belt and become injured.
Adjust the seat properly before begin-
ning your journey.Always ensure that the seat backrest is
in an almost vertical position and thatthe shoulder belt is routed across the center of your shoulder.
Risk due to objects in the vehicle interior
All vehicle occupants must make sure of the fol-
lowing in particular:
= They observe the information on the correct
seat position (  page 45).
= 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 Emergency Tensioning Devices.
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 air bag is identi"Ned
by the AIRBAG (  page 60) symbol.
Occupant safety !

Risk due to installing accessories
Do not attach accessories such as mobile naviga-
tion devices, mobile phones or cup holders within the deployment area of an air bag, 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 may be routed or attached to the vehicle within the deploymentarea of an air bag. Always comply with the acces-sory manufacturer\bs installation instructions and,
in particular, the notes on suitable places for
installation.&WARNING Risk of injury or death due to
unsuitable protective covers
Unsuitable protective covers mean that air
bags can no longer protect vehicle occupants as they are designed to do.
Use only protective covers approved by
Mercedes-Benz for the seat in question.
In addition, the function of the automatic
passenger air bag deactivation may be restricted
by an unsuitable protective cover. If the front
passenger seat is occupied, ensure that the PASSENGER AIR BAG indicator lamps display thecorrect status of the front passenger air bag
(  page 49).
Risk due to pets in the vehicle interior&WARNING Risk of accident and injury due
to animals le"s unsecured or unattended in
the vehicle
If you leave animals in the vehicle unattended or unsecured, they could possibly press but-
tons or switches.
An animal may: = Activate vehicle equipment and become
trapped, for example
= Switch systems on or o"M and endanger
other road users
Unsecured animals may be thrown around in
the vehicle in the event of an accident or sud-
den steering and braking maneuvers and injure vehicle occupants in the process.
Never leave animals in the vehicle unat-
tended.Always correctly secure animals while
driving, e.g. using a suitable animal car-
rier.
Risk due to modi"Ncation, damage or wear to the
components of the restraint system
&WARNING Risk of injury or death due to
modi"Ncations 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"s-
ware.If it is necessary to modify the vehicle to accom- modate a person with disabilities, contact an
authorized Mercedes-Benz Center for details.58Occupant safety !