reset MERCEDES-BENZ GLS SUV 2021 Owners Manual

Connecting and using ano
ther device with the
diagnostics connection can ha vethefo llowing
e.ects:
R Malfunctions in theve hicle system
R Perm anent damage tovehicle components
Please referto thewa rranty term s and conditions
fo rth is matter. Moreo
ver,connecting equipment tothe diagnos-
tics connection can lead toemissions monitoring
information being reset, forex ample. This may
lead totheve hicle failing tomeet there qu ire-
ments of the next emissions inspection during the
main inspection. Quali/ed
Quali/ed
specialis
specialist w
t work
ork shop
shop
A qu ali/ed specialist workshop has the necessary
special skills, tools and quali/cations tocor rectly
car ryout any necessary workon your vehicle.
This particular lyapplies tosaf ety-re leva nt wo rks.
Alw ays ha vethefo llowing workcar ried out on
yo ur vehicle at a quali/ed specialist workshop:
R Safety-re leva nt wo rks
R Service and maintenance work
R Repair work
R Modi/cations as well as installations and con-
ve rsions
R Workon electronic components R
V Vehicles wit ehicles wit h 48 V on-boar
h 48 V on-boar d electr
d electrical syst
ical syst em:
em:
wo rkon the high-voltage component of the 48
V on-board electrical system
Mercedes‑Benz recommends a Mercedes‑Benz
service cent re. V
V
ehicle r
ehicle r egis
egistrtration
ation
Mercedes-Benz may ask its service centres to
car ryout tech nical inspections on cer tain vehi-
cles. The quality or saf ety of theve hicle is
impr oved as a result of the inspection.
Mercedes-Benz can only inform you about vehicle
ch ecks if Mercedes-Benz has your registration
data.
It is possible that your vehicle has not yetbeen
re gistered in your name in thefo llowing cases:
R ifyo ur vehicle was not pur chased at an author-
ised specialist deale r.
R ifyo ur vehicle has not yetbeen examined at a
Mercedes-Benz service cent re.
It is advisable toregister your vehicle with a
Mercedes-Benz service cent re.36 36
General no
tes

uses operational data from
theve hicle, forex am-
ple, forre calls. These data can also be used to
ex amine the customer's warranty and guarantee
claims.
Fa ult memories in theve hicle can be reset by a
service outl etor at your requ est as part of repair
or maintenance work.
Conv
Conv enience and inf ot
enience and inf otainment functions ainment functions
Yo u can store con venience settings and individual
settings in theve hicle and change or reset them
at any time.
Depending on theve hicle equipment, this
includes thefo llowing settings, forex ample:
R seat and steering wheel positions
R suspension and climate cont rol settings
R individual settings, such as interior lighting
Depending on the selected equipment, you can
import data into vehicle inf otainment functions
yo urself. Depending on
theve hicle equipment, this
includes thefo llowing data, forex ample:
R multimedia data, such as music, /lms or pho-
tosfo r playback in an integ rated multimedia
system
R address book data for use in connection with
an integ rated hands-free system or an integ ra-
te d navigation system
R entered navigation destinations
R data about the use of Internet services
These data for con venience and inf otainment
functions may be sa ved locally in theve hicle or
th ey may be located on a device which you ha ve
connected totheve hicle, such as a smartphone,
USB 0ash drive or MP3 pla yer.Ifyo u ha veentered
th ese data yourself, you can dele tethem at any
time.
This data is transmitted from theve hicle tothird
parties only at your requ est. This applies, in par-
ticular, when you use online services in accord-
ance with the settings that you ha veselected. Smar Smar
tphone int tphone int egr
egration (e.g. Andr
ation (e.g. Andr oid A
oid Aut
uto or
o or
Apple CarPlay
Apple CarPlay ®
®
)
)
If yo ur vehicle is accordingly equipped, you can
connect your smartphone or ano ther mobile end
device totheve hicle. You can then control them
by means of the control elements integ rated in
th eve hicle. Images and audio from the smart-
phone can be output via the multimedia system.
Cer tain information is simultaneously transfer red
to your smartphone. Depending on the type and
integ ration, this includes position data, day/night
mode and other general vehicle statuses. For
more information please consult the Owner's
Manual of theve hicle/inf otainment system.
This integ ration allo ws the use of selected smart-
phone apps, such as navigation or music pla yer
apps. There is no fu rther interaction between the
smartphone and theve hicle; in particular, vehicle
data is not directly accessible. The type of addi-
tional data processing is de term ined bythe pro-
vider of the app being used. Which settings you
can make, if an y,depends on the speci/c app and
th e operating system of your smartphone. 40 40
General no
tes

1
Closing
2 Toopen
The buttons on the driver's door take precedence. #
T
To st
o st ar
art aut
t aut omatic oper
omatic oper ation:
ation:presstheW
button be yond the point of resis tance or pull
and release it. #
T
To int
o int err
errup
upt aut
t aut omatic oper
omatic oper ation:
ation:press or pull
th eW button again. When
theve hicle is switched o., you can con-
tinue tooperate the side windo ws.
This function is available for around four minutes
or until a front door is opened.
% V
V ehicles wit
ehicles wit h electr
h electric r
ic roller sunblinds on t
oller sunblinds on t he
he
leT
leT and r
and r ight r
ight r ear door
ear door s:
s:the buttons forthe
re ar side wind ows also open and close the
ro ller sunblinds (/ page 104).
A
A ut
ut omatic rev
omatic rever
ersing function of t
sing function of t he side windows
he side wind ows
If an obs tacle impedes a side window during the
closing process, the side window will open again
automaticall y.The automatic reve rsing function is
only an aid and is not a substitute foryo ur atten-
tiveness. #
During the closing process, make sure that no
body parts are in the closing area. &
W
WARNING
ARNING Risk of becoming trapped
despite there being reve rsing pr otection
on the side window
The reve rsing function does not react:
R tosoT, light and thin objects, e.g. /n gers. R
during resetting.
The reve rsing function cannot pr event some-
one from becoming trapped in these situa-
tions. #
During the closing process, make sure
th at no body parts are in the closing
area. #
If someone becomes trapped, press the
W button toopen the side window
again. A
A
ut
ut omatic function of t
omatic function of t he side windows
he side wind ows In
thefo llowing cases, the side windo wswill be
closed automatically when theve hicle is switched
o.:
R if it starts torain
Ra in is de tected byara in sensor on the wind-
screen.
R inextreme temp eratures
R aTer a cer tain time (depending on the on-
board electrical system voltage) Opening and closing
97
97

If
yo u press or pull button 1beyond the point of
re sis tance, you will start automatic operation in
th e direction in question. You can stop automatic
operation bypushing or pulling the button again.
A
A ut
ut omatic rev
omatic rever
ersing function of t
sing function of t he sliding sun-
he sliding sun-
r
r oof
oof
If an obstacle obstructs the sliding sunroof during
th e closing process, the sliding sunroof will open
again automaticall y.The automatic reve rsing func-
tion is only an aid and is not a substitute foryo ur
attentiveness. #
During the closing process, make sure that no
body parts are in the closing area. &
W
WARNING
ARNING Risk of becoming trapped
despite there ve rsing function being active
In particular, there ve rsing function does not
re act:
R tosoT, light and thin objects, e.g. /n gers.
R towa rdsth e end of the closing procedure.
R during resetting. #
During the closing process, make sure
th at no body parts are in the closing
area. #
Release the button immediately if some-
body becomes trapped.
or #
Brie0y press the button in any direction
during automatic operation.
The closing process will be stopped. A A
ut
ut omatic rev
omatic rever
ersing function of t
sing function of t he r
he r oller sunblind
oller sunblind
If an obstacle obstructs thero ller sunblind during
th e closing process, thero ller sunblind will open
again automaticall y.The automatic reve rsing func-
tion is only an aid and is not a substitute foryo ur
attentiveness. #
When closing thero ller sunblind, make sure
th at no body parts are in thera nge of mo ve-
ment. &
W
WARNING
ARNING Risk of becoming trapped
despite reve rsing function
In particular, there ve rsing function does not
re act tosoT, light and thin objects, e.g. /n-
ge rs. #
When closing thero ller sunblind, make
sure that no body parts are in thera nge
of mo vement. #
Release the button immediately if some-
body becomes trapped.
or #
Brie0y press the button in any direction
during the automatic closing process.
The closing process will be stopped. A
A
ut
ut omatic functions of t
omatic functions of t he sliding sunr
he sliding sunroof
oof %
The term "sliding sunroof" also refers to the
panorama sliding sunroof.
The sliding sunroof will be closed automatically
when theve hicle has been switched o. in thefo l-
lowing situations:
R if it starts torain 102
102
Opening and closing

Ra
in is de tected byara in sensor on the wind-
screen.
R inextreme temp eratures
R aTer a cer tain time (depending on the on-
board electrical system voltage)
R ifth ere is a malfunction in the po wer supply
The sliding sunroof will rise at there ar in order to
continue ventilating theve hicle interior.
If th e sliding sunroof is obstructed during an auto-
matic closing procedure, thero of will be opened
again slightl y.The automatic function forth e slid-
ing sunroof and the side windo wswill then be
deactivated.
R
R ain-closing f ain-closing f eatur
eature when dr
e when dr iving
iving
V
V ehicles wit
ehicles wit h a panor
h a panorama sliding sunr
ama sliding sunr oof:
oof: if it
starts torain, thera ised sliding sunroof will auto-
matically be lo wered while theve hicle is in
motion.
A
A ut ut omatic low
omatic low er
ering function
ing function
V
V ehicles wit
ehicles wit h a panor
h a panorama sliding sunr
ama sliding sunr oof:
oof:ifthe
sliding sunroof is raised at there ar, it will auto-
matically be lo wered slightly at higher speeds. At
low speeds, it will be raised again automaticall y. &
W
WARNI NG
ARNI NGRisk of becoming trapped by
automatic lo wering of the sliding sunroof
At higher speeds, thera ised sliding sunroof
will automatically be lo wered slightly at the
re ar. #
Make sure that nobody reaches into the
sliding sunroof's range of mo vement
while theve hicle is in motion. #
If somebody becomes trapped, brie0y
push the sliding sunroof button forw ards
or backwards. %
By pushing or pulling the3 button, you
can inter rupt the automatic functions "Rain
closing function when driving" and "Automatic
lo we ring". R R
ectifying pr
ectifying pr oblems wit
oblems with t
h the sliding sunr
he sliding sunroof oof &
W
WARNI NG
ARNI NGRisk of becoming trapped or
fata l injuries when the sliding sunroof is
closed again
If th e sliding sunroof is closed again immedi-
ately aTer it has been bloc ked or reset, it will
close with increased forc e. #
Make sure that no parts of the body are
in the closing area. #
Release the button immediately if some-
body becomes trapped.
or #
Brie0y press the button in any direction
during the automatic closing process.
The closing process will be stopped. The sliding sunr
The sliding sunr
oof canno
oof cannot be closed and y
t be closed and y ou can-
ou can-
no
no t see t
t see t he cause.
he cause.
% The term "sliding sunroof" also refers to the
panorama sliding sunroof.
If th e sliding sunroof is obstructed during closing
and reopens again slightl y: Opening and closing
103
103

#
Immediately aTer automatic reve rsing, pull
and hold the3 button down again tothe
point of resis tance until the sliding sunroof is
closed.
The sliding sunroof will be closed with
increased forc e.
If th e sliding sunroof is obstructed again and
opens again slightl y:#
Repeat the pr evious step.
The sliding sunroof will be closed again with
increased forc e.
V
V ehicles wit ehicles wit hout a panor
hout a panor ama sliding sunr
ama sliding sunr oof: t
oof: the
he
sliding sunr
sliding sunr oof is no
oof is not oper
t operating smoot
ating smoot hly
hly.
. #
Reset the sliding sunroof.
R
R ese
ese tting t
tting t he sliding sunr
he sliding sunr oof
oof#
Push the3 button up tothe point of resist-
ance repeatedly until the sliding sunroof is
fully open. #
Press the3 button for ano ther second. #
Close the sliding sunroof. V
V
ehicles wit
ehicles wit h a panor
h a panorama sliding sunr
ama sliding sunr oof: t
oof: the slid-
he slid-
ing sunr
ing sunr oof or t
oof or the r
he roller sunblind is no
oller sunblind is no t oper
t operating
ating
smoot
smoot hly
hly.
. #
Reset the sliding sunroof and thero ller sun-
blind.
R
R ese
ese tting t
tting t he sliding sunr
he sliding sunr oof and t
oof and the r
he roller sun-
oller sun-
blind
blind #
Pull and hold the3 button little bylittle
until the sliding sunroof is fully closed. #
Pull and hold the3 button little bylittle
until thero ller sunblind is fully closed. #
Use automatic operation tofully open and
th en close the sliding sunroof. R
R
oller sunblinds
oller sunblinds Ext
Ext
ending or re
ending or retr
tracting t
acting t he r
he roller sunblinds on t
oller sunblinds on t he
he
r
r ear side windo ws
ear side windo ws &
W
WARNI NG
ARNI NGRisk of becoming trapped when
ex tending or retracting thero ller sunblind
Body parts could become trapped in the
sweep of thero ller sunblind when it is being
ex tended or retracted. #
Make sure that no body parts are in the
sweep of thero ller sunblind when it is
being extended or retracted. #
If someone becomes trapped, brie0y
press the button in the opposite direc-
tion.
The opening or closing process will
brie0y be stopped. The roller sunblind
will then return toits starting position. *
N NOOTE
TE Damage caused byobjects Objects can cause
thero ller sunblind tomal-
function. 104
104
Opening and closing

has any body parts in
the sweep of the
seat. #
If someone becomes trapped, press a
preset position button or seat adjust-
ment switch immediatel y.&
W
W ARNI NG
ARNI NGRisk of entrapment if the mem-
ory function is activated bychildren
Children could become trapped if they acti-
va te the memory function, particular lywhen
unat tended. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. Yo
u can use the memory function when the igni-
tion is switched o..
Seat adjustments for up tothre e people can be
stored and called up using the memory function.
Yo u can sa vesettings forth efo llowing systems:
R Front seat
R Outside mir rors R
Head-up display
R Steering column
R Seat contour Oper Oper
ating t
ating t he memor
he memor y function
y function S
S
t
tor
or ing
ing #
Set the desired position for all systems. #
Brie0y press theV memory button and
th en press preset position button 4,T
or U within thre e seconds.
An acoustic signal sounds. The settings are
stored. #
T To call up:
o call up: press and brie0y hold preset posi-
tion button 4,TorU.
ATer releasing the button, all systems are
mo ved into the stored position. Memor
Memor
y function in t
y function in t he r
he rear com
ear com par
partment
tment F
F
unction of t
unction of t he memor
he memory function in t
y function in t he r
he rear
ear
passeng
passeng er com
er compar
partment
tment Oper
Oper
ating t
ating t he r
he rear seat
ear seat
Seat adjustments forth ere ar seat can be stored
and called up using the memory function in the
re ar passen ger compartment.
R Driver's side: two persons
R Front passenger side: one person Seats and st
owing
131
131

Yo
u can sa vethefo llowing settings forth ere ar
seat:
R Position of the seat, backrest and head
re straint
R Seat heating: distribution of the heated sec-
tions of the seat cushion and seat backrest
Oper
Oper ating t
ating t he fr
he front passeng
ont passeng er seat and r
er seat and r ear seat
ear seat
Seat adjustments forth e front passenger seat and
th ere ar seat can be stored and called up using
th ere ar seat memory function.
Yo u can sa vethefo llowing settings forth e front
passenger seat:
R Position of the seat, backrest and head
re straint
Yo u can sa vethefo llowing settings forth ere ar
seat:
R Position of the seat, backrest and head
re straint
R Seat heating: distribution of the heated sec-
tions of the seat cushion and seat backrest Oper
Oper
ating t
ating t he r
he rear seat via t
ear seat via t he memor
he memory function
y function
in t
in t he r
he r ear passeng
ear passeng er com
er compar
partment
tment S S
t tor
or ing
ing #
Press button 1.
The rear seat is selected if the indicator lamp
in the button does not light up. #
Adjust there ar seat using the buttons in the
door control panel (/ page 113). #
Brie0y press memory button M and, within
thre e seconds, press either preset position
button 4orT.
The settings forth ere ar seat are stored in the
cor responding preset position.
% You cannot store any settings on the button
fo r straightening the fully reclined position. 132 132
Seats and st
owing

Calling up
Calling up
#
Press button 1.
The rear seat is selected if the indicator lamp
in the button does not light up. #
Press cor responding preset position button
4 orT.
The rear seat will mo vetothe stored position. Oper
Oper
ating t
ating t he fr
he front passeng
ont passeng er seat and r
er seat and r ear seats
ear seats
via t
via t he memor
he memor y function in t
y function in t he r
he rear com
ear com par
partment
tment R R
eq eq uir
uir ements:
ements:
R For selecting the front passenger seat: the
po we r supply is switched on
St
St or
oring
ing Seats and st
owing
133
133

#
Press button 1.
The rear seat is selected if the indicator lamp
in the button does not light up. #
Adjust there ar seat using the buttons in the
door control panel (/ page 113).#
Press button 1.
When the indicator lamp lights up, the front
passenger seat is selected. #
Adjust the front passenger seat using the but-
to ns on the door operating unit in there ar
passen ger compartment (/ page 108).#
Ensure that the indicator lamp in button 1
lights up. #
Press memory button M and, within thre e sec-
onds, press preset position button 4.
The settings forth e front passenger seat and
th ere ar seat are stored in the preset position.
% You cannot store any settings on the buttons
fo r setting and straightening the fully reclined
position. Calling up
Calling up #
Press button 1.
When the indicator lamp lights up, the front
passenger seat is selected. 134
134
Seats and st
owing