2021 MERCEDES-BENZ GLS SUV warning

#
Do not uncouple trailers with an engaged
ove rrun brake. *
N
NOOTE
TE Damage when uncoupling in a state
of ove rrun Uncoupling in a state of
overrun can damage
th eve hicle. #
Do not uncouple trailers with an engaged
ove rrun brake. &
W
WARNING
ARNING Risk of becoming trapped when
disconnecting the trailer cable
V
V ehicles wit
ehicles wit h lev
h level contr
el contr ol syst
ol system:
em:Thevehicle
may lo wer when the trailer cable is disconnec-
te d.
This could result in you or other people
becoming trapped if your or their limbs are
between theve hicle body and the tyres or
underneath theve hicle. #
Make sure that nobody is underneath the
ve hicle or in the immediate vicinity of the wheel ar
ches when you disconnect the
trailer cable. *
N
NOOTE
TE Damage tothere ar bumper from
ins talling adap ter cables or adap ter plugs The
following parts could be damaged when
swiveling the ball neck fully electricall y:
R Bumper
R Adapter cable
R Adapter plug #
Alwaysre mo vethe adap ter cable or
adap ter plug before swiveling the ball
neck fully electricall y. #
Secure the trailer against rolling away. #
Disconnect the electrical connection between
th eve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver cap on the ball head.
% T
Tr
railer
ailer s wit
s wit h LED lighting:
h LED lighting: aTer uncoupling the
traile r,switch theve hicle on and then o.
again. Bicy
Bicy
cle r
cle r ac
ack function
k function &
W
WARNING
ARNING Risk of an accident if the bicy-
cle rack is used incor rectly
The bicycle rack may become de tach ed from
th eve hicle in thefo llowing cases:
R the permissible load capacity of the trailer
hitch is exceeded.
R the bicycle rack is used incor rectl y.
R the bicycle rack is secured tothe ball neck
beneath the ball head.
Obser vethefo llowing foryo ur ow n sa fety and
th at of other road users:
R always adhere tothe permissible load
capacity of the trailer hitch.
R always obser vethe permissible rear axle
load of theto wing vehicle.
R use the bicycle rack only totransport bicy-
cles. 304
304
Driving and parking

N
N
o
ot
tes on t
es on t he ins
he instrtrument displa
ument displa y and on-board
y and on-board
com
com put
puter
er &
W
WARNING
ARNING Risk of accident if the inst ru-
ment display fails
If th e inst rument display has failed or is mal-
functioning, function restrictions in systems
re leva nt tosaf ety cann otbe de tected.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y.#
Have theve hicle checked immediately at
a qu ali/ed specialist workshop. If
th e operating saf ety of your vehicle is impaired,
park theve hicle immediately and safel y.Contact a
qu ali/ed specialist workshop. &
W WARNING ARNING Risk of distraction due toinfor-
mation systems and communications
equipment
If yo u operate information systems and com-
munications equipment integ rated in theve hi- cle when driving,
you could be distracted from
th e tra1c situation. This could also cause you
to lose control of theve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle in accordance with the tra1c
conditions and operate the equipment
with theve hicle stationar y. *
N NO
OTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Yo
u must obser vethe legal requ irements forthe
count ryin which you are cur rently driving when
ope rating the on-board computer.
The on-board computer sho wsonly display mes-
sages and warnings from speci/c systems on the
inst rument displa y.Yo u must therefore ensure
th at your vehicle is alw aysre liable. If
th e operating saf ety of your vehicle is impaired,
park theve hicle immediately and in accordance
with the tra1c conditions. Contact a quali/ed
specialist workshop. 308
308
Instrument display and on-board computer

R
Navigation #
Onthe cor responding menu, use the leT-hand
To uch Control toscroll tothe end of the list. #
Press the leT-hand Touch Control.
The selected menu will be displa yed full-
screen. Ov
Ov
er
ervie
vie w of display
w of display s in t
s in the ins
he ins tr
trument display
ument display
Displa yson the inst rument displa y:
u Active Parking Assist (/ page 293)
é Parking Assist PARKTRONIC deactivated
(/ page 290)
î DSR (/ page 249)
h Cruise control (/ page 238)
È Limiter (/ page 239)
ç Active Distance Assist DISTRONIC
(/ page 241)
æ Active Brake Assist (/ page 253)
à Active Steering Assist (/ page 251)
¬ Active Stop-and-Go Assist (/ page 249)Ã
Active Lane Keeping Assist (/ page 264)
è ECO start/s top function (/ page 201)
ë HOLD function (/ page 235)
_ Adaptive Highbeam Assist Plus
(/ page 165)
ð Maximum permissible speed exceeded (for
cer tain countries only)
V
V ehicles wit
ehicles wit h Speed Limit Assist:
h Speed Limit Assist: detected
instructions and tra1c signs (/ page 258).
V
V ehicles wit
ehicles wit h
hTr
Tra1c
a1c Sign Assist:
Sign Assist: detected instruc-
tions and tra1c signs (/ page 259).
Fo r an overview of the indicator and warning
lamps, see (/ page 504). Head-up display
Head-up display
F
F
unction of t
unction of t he head-up display
he head-up display *
N
NO OTE
TE Mercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The head-up display projects
thefo llowing infor-
mation into the driver's /eld of vision abo vethe
cockpit, forex ample:
R The vehicle speed
R Information from the navigation system
R Information from the driving systems and driv-
ing saf ety sy stems
R Some warning messages
Depending on theve hicle's equipment, di.erent
content can be shown in theth re e areas of the
head-up displ ay (/page 313). 312
312
Inst
rument display and on-board computer

Selecting what t
Selecting what t
he head-up displa
he head-up displa y shows
y sho ws (Example)
1
Switching the head-up display on/o.
2 LeT display area
Navigation system
Inclination, gradient and compass
Av erage consum ption
G-me ter
3 Central display area
Speedome ter
Set speed in the driver assistance system,
e.g. cruise control Wa
rnings from driver assistance systems, e.g.
distance warning
4 Right display area
Tra1c Sign Assist
Ve hicle le vel
Di.erential
Dist ribution of the drive torque s, 4MATIC
(/ page 215)
Assis tant display
5 Toadjust the position, brightness and lo wer
display area
6 Index points
7 Lowe r display area (e xample: leT display area)
Display areas 2to4 that are not requ ired can
be hidden.
% In audio mode, the station name or track will
be shown temp orarily when the audio source
is being actively operated. In addition, the lat-
est calls will be displa yed when thete lephone
list on the inst rument display is actively oper-
ated. #
Swipe upwards on the leT-hand Touch Con-
trol. #
Press the leT-hand Touch Control. Switc Switc
hing t
hing t he head-up displa
he head-up displa y
yon/o.
on/o. via t
via the mul-
he mul-
timedia syst
timedia syst em
em Multimedia system:
4 © 5
Settings 5
Quick access #
Select HUD.
The head-up-display is activated. 314
314
Instrument display and on-board computer

#
Press rock er switch 1up.
or #
Say "Hello Mercedes". Ov
Ov
er
ervie
vie w of t
w of t he MBUX Int
he MBUX Int er
erior Assist
ior Assist ant
ant &
W
WARNING
ARNING Risk of injury from the cam-
era's laser radiation
This product uses a classi/cation 1 laser sys-
te m. If the housing is opened or damaged,
laser radiation may damage your retina. #
Do not open the housing. #
Always ha vemaintenance workand
re pairs car ried out byaqu ali/ed special-
ist workshop. This device is a class 1 laser product in accord-
ance with IEC 60825-1:2014 and DIN EN
60825-1:2014. The camera is located in
theove rhead control
panel.
If th eve hicle is /tted with the MBUX Interior
Assistant, selected functions of the multimedia
system can be operated contact-free. The MBUX
Interior Assistant can di.erentiate between driver
and front passenger interactions and de tects spe-
ci/c hand positions (poses).
Syst Syst em limits, displa
em limits, displa y messag
y messages and not
es and not es f
es for
or
r
r ecti/cation
ecti/cation
The system may be impaired or may not function
in thefo llowing situations:
R The camera in theove rhead control panel may
heat up due tooperating conditions. As a
re sult the camera may switch o. temp oraril y,
particular lyduring longer periods of operation
and at high outside temp eratures. Do not
touch or co verth e camera and wait
until the camera has cooled down and is avail-
able again.
R The camera is co vered, dirty, misted up or
scratched.
Wa it until the camera has cooled down before
cleaning the camera lens.
Clean the outside of the camera lens with a
dry or damp cotton clo th. Do not use micro/-
bre clo ths. Do no not tre mo vethe co ver when
cleaning.
R Recognition can be impaired byre0ective
clo thing, an adverse colour of clo thing or by
accessories, forex ample.
R Clothing being worn(hat, sha wl, scarf) may be
limiting the de tection area of the camera.
Ke ep the camera's /eld of vision clear.
R The camera is not operational.
Consult a Mercedes-Benz service centre. 320 320
MBUX multimedia system

Switc
Switc
hing t
hing t he r
he reading light on and
eading light on and o.
o.#
Brie0y mo vea hand up or down beneath the
inside rearview mir ror.
The reading light is switched on or o. forthe
driver or the front passenger. Switc
Switc hing t
hing t he searc
he searc h light on and
h light on and o.
o. #
T
T o switc
o switc h on:
h on:reach across the front
passenger seat with a hand.
The sear chlight is switched on forth e driver. #
T
T o switc o switc h
ho.:
o.: take a hand back away from the
front passenger seat.
The search light is switched o. again. Inf
Inf
or
ormation on
mation on pr
pro/les,
o/les, t
themes, sugg
hemes, sugg es
estions andtions and
fav
fav our
our it
ites
es Fo
r electrically adjustable seats obser vethefo l-
lowing no tes. &
W
WARNING
ARNING Risk of becoming trapped dur-
ing adjustment of the driver's seat aTer
calling up a driver pro/le
Selecting a user pro/le may trigger an adjust-
ment of the driver's seat tothe position sa ved
under the user pro/le. You or other vehicle
occupants could be injured in the process. #
Make sure that when the position of the
driver's seat is being adjus ted via the
multimedia system, no people or body
parts are in the seat's range of mo ve-
ment.
If th ere is a risk of someone becoming trap-
ped, stop the adjustment process immedi-
atel y: #
a)Tapth ewa rning message onthe
media displa y.
or #
b) Press a memory function position but-
ton or a seat adjustment switch on the
driver's door.
The adjustment process will be stopped. 322 322
MBUX multimedia system

R
Activation of the downloaded system update
by restarting the system
% If automatic soTware updates are activated,
th e system updates will be downloaded auto-
maticall y.
The multimedia system pr ovides a message when
a system update is available.
Yo u ha vethefo llowing selection options:
R Accept and install
The system update will be downloaded in the
background.
R Information
Information about the pending system update
is displa yed.
R Later
The system update can be downloaded man-
ually at a later time.
Deep syst Deep syst em updat
em updates
es
Deep system updates access vehicle or system
settings and can therefore only be car ried out
when theve hicle is stationary and the ignition is
switched o.. If
th e download of a deep system update is com-
ple ted and the downloaded system update is
re ady for installation, you will be informed of this
aTer the next ignition cycle, forex ample.
% Park theve hicle safely in a suitable location
before starting the installation.
Re quirements forth e installation:
R The ignition is switched o..
R Notes and warnings ha vebeen read and
accep ted.
R The electric parking brake is applied.
If all requ irements ha vebeen ful/lled, the down-
loaded system update is installed. The multimedia
system cannot be operated while the downloaded
system update is being installed and vehicle func-
tions are restric ted.
If errors should occur during the installation, the
multimedia system automatically attem ptsto
re store the pr evious version. If restoration of the
pr ev ious version is not possible, a symbol appears
on the media displa y.Consult a quali/ed special-
ist workshop toresol vethe problem. Se
Se
tting up a W
tting up a W i-F
i-Fi ho
i ho tspot
tspot R
R
eq
eq uir
uir ements:
ements:
R T
To se
o se t up t
t up t he W
he Wi-F
i-Fi connection of t
i connection of t he multime-
he multime-
dia sy
dia sy st
stem wit
em wit h e
h ext
xter
er nal ho
nal ho tspo
tspots:
ts:your vehicle
does not ha vea permanent lyinstalled com-
munication module.
R The device tobe connected supports at least
one of the types of connection described.
Multimedia system: 4 © 5
Settings 5
System
5 Wi-Fi & Bluetooth
A
A ctiv
ctiv ating/deactiv
ating/deactiv ating W
ating Wi-Fi
i-Fi #
Select Wi-Fi.
Connecting t
Connecting t he multimedia syst
he multimedia syst em wit
em with an e
h an ext
xter-
er-
nal ho
nal ho tspo
tspot using W
t using W i-Fi
i-Fi
The type of connection established must be selec-
te d on the multimedia system and on the device
to be connected. MBUX multimedia system
325 325

#
Switch Motorway information on or o..Using ser
Using ser
vices
vices R
R
eq
eq uir
uir ements:
ements:
R Thereis an Internet connection.
R Mercedes me connect is available.
R You ha veset up a user account in the
Mercedes me Portal.
R The vehicle is connected toa user account
and you ha veaccep tedth e conditions of use
fo rth e service.
Fu rther information can be found at: https://
www.mercedes.me
R The service is available and has been activa-
te d.
R The following additional conditions apply to
th ePa rking service:
- The navigation services option is available,
subscribed toand activated in the
Mercedes me Portal.
- The Parking service is within the scope of
th eNa vigation Services. Multimedia system:
4 © 5
Navigation
Displa
Displa ying t
ying the
hetr
tra1c
a1c situation wit
situation wit h Liv
h Live
eTr
Tra1c
a1c
Inf
Inf or
ormation
mation #
Select Z. #
Activate Traffic . #
Select Advanced. #
Select View. #
Select Map elements . #
Switch on Traffic incidents, Free-flowing traf-
fic and Delay.
If tra1c information has been received, then
tra1c incidents such as roadwor ks,ro ad
bloc ks, local area reports (e.g. fog) and warn-
ing message s are displayed.
The tra1c delay is displa yedfo rth e cur rent
ro ute. Tra1c dela yslasting one minute or lon-
ge r are take n into consideration.
Displa
Displa ying hazar
ying hazar d w
d war
arnings wit
nings wit h Car
h Car-t
-to-X
o-X -Commu-
-Commu-
nication
nication
If hazard warnings are available these can be
shown as symbols on the map. The display depends on
the settings forth eTraffic andTraf-
fic incidents options. #
Set the options.
If Traffic is switched o. and Traffic incidents
is switched on, the symbols are shown on the
prospective route.
Displa Displa ying w
ying w eat
eather inf
her inf or
ormation and ot
mation and other map
her map
cont
cont ents
ents #
Select Z. #
Select Advanced. #
Select View. #
Select Map elements. #
Scroll up and show theONLINE MAP CON-
TENTS categor y. #
Switch on a se rvice, e.g. Weather.
Cur rent we ather information is displ ayed on
th e navigation map, e.g. temp erature or cloud
co ver. 334
334
MBUX multimedia system