warning MERCEDES-BENZ GLS SUV 2021 Owner's Guide

W
W
eight cat
eight cat egor
egory 0+: up t
y 0+: up t o 13 k
o 13 kgg
Fr ont passenger airbag enabled 1
X
Fr ont passenger airbag disabled 1, 2
U, L
W
W eight cat
eight cat egor
egory I: 9 t
y I: 9 t o 18 kg
o 18 kg
Fr ont passenger airbag enabled 1
UF
Fr ont passenger airbag disabled 1, 2
U, L
W
W eight cat
eight cat egor
egory II: 15 t
y II: 15 t o 25 k
o 25 kgg
Fr ont passenger airbag enabled 1
UF
Fr ont passenger airbag disabled 1, 2
U, L
W
W eight cat
eight cat egor
egory III: 22 t
y III: 22 t o 36 kg
o 36 kg
Fr ont passenger airbag enabled 1
UF
Fr ont passenger airbag disabled 1, 2
U, L
1 Ad just the seat cushion inclination so that the front
edge of the seat cushion is in the highest position and
th ere ar edge of the seat cushion is in the lo west posi-
tion. 2 The
vehicle is equipped with automatic front
passenger airbag shuto.. The PASSENGER AIR BAG
OFF indica tor lamp must be lit.
X Not suitable forch ildren in this we ight categor y.
U Sui table forch ild restraint systems of the "Universal"
category in this we ight categor y.
L Suitable for semi-universal child restraint systems
acco rding totheta ble in "Recommended child restraint
systems", or if theve hicle and the seat are listed in the
ch ild restraint system manufacturer's vehicle model list.
UF Suitable forfo rw ard-facing child restraint systems of
th e "Universal" category in this we ight categor y. Secur
Secur
ing t
ing the c
he child r
hild r es
estrtraint syst
aint syst em wit
em with t
h t he seat
he seat
belt on t
belt on t he r
he rear seat
ear seat &
W
WARNING
ARNING Risk of accident if there ar
ben chseat, rear seat and seat backrest
are not engaged
The rear ben chseat, rear seat and seat bac k-
re st ma yfo ld forw ards, even while theve hicle
is in motion.
R As a result, theve hicle occupant will be
pressed into the seat belt with increased
fo rc e. The seat belt will not be able topro-
te ct as intended and could cause addi-
tional injur y.
R Objects or loads in the boot or load com-
partment cannot be restrained bythe seat
backrest. #
Make sure that there ar ben chseat, the
re ar seat and the seat backrest are
engaged before every trip. If
th e seat backrest is not engaged and loc ked in
place, this will be shown on the display on the
inst rument cluster (folding there ar seat back 74
74
Occupant saf
ety

N
N
o
ot
tes on v
es on v ehicles wit
ehicles wit hout aut
hout automatic fr
omatic fr ont
ont
passeng
passeng er airbag
er airbag shut
shuto.
o. St
icke r visible when the front passenger door is
open
Ve hicles without automatic front passen ger airbag
shuto. ha vea special stic ker a1xed tothe side of
th e cockpit on the front passenger side. Make sure
you obser vethefo llowing information:
R Never /t a rear wa rd-facing child restraint sys-
te m to the front passenger seat
R Always /t a rear wa rd-facing child restraint sys-
te m to a suitable rear seat
- Seats suitable for attaching belted child
re straint systems (/ page 72).
- Secure thech ild restraint system wi th the
seat belt on there ar seat (/ page 74).
R Notes on rear wa rd-facing and forw ard-facing
ch ild restraint systems on the front passenger
seat (/ page 76)
N
No ot
tes on r
es on r earw
earw ar
ard-f
d-f acing and f
acing and f orw
orwar
ard-f
d-f acing c
acing c hild
hild
r
r es
estr traint syst
aint syst ems on t
ems on t he fr
he front passeng
ont passeng er seat
er seat &
W
WARNING
ARNING Risk of injury or death when
using a rear wa rd-facing child restraint sys-
te m while the front passenger airbag is
enabled
If yo u secure a child in a rear wa rd-facing child
re straint system on the front passenger seat
and thePA SSENGER AIR BAG OFF indicator la
mp is o., the front passenger airbag can
deploy in theev ent of an accident.
The child could be struck bythe airbag. #
Always ensu rethat the front passenger
airbag is disabled. The PASSENGER AIR
BAG OFF indicator la mpmust be lit. #
NEVER use a rear wa rd-facing child
re straint system on a seat wi than ENA-
BLED FRONT AIR BAG. This can result in
th e DEATH of or SERIOUS INJURY tothe
CHILD. Obse
rveth e speci/c inst ructions forth ere ar-
wa rd-facing and forw ard-facing child restraint sys-
te ms (/ page 77). 76
76
Occupant saf
ety

O
Thechild restraint system must not be put
under strain bythe head restraint. Adjust the
head restraints as appropria te.
O Never place objects (e.g. cushions) under or
behind thech ild restraint system. &
W
WARNING
ARNING Risk of injur y or death due to
objects between the seat sur face and the
ch ild restraint system
Objects between the seat sur face and the
ch ild restraint system could a.ect the function
of the automatic front passenger airbag shut-
o.. #
Do not place any objects between the
seat sur face and thech ild restraint sys-
te m. #
Always make sure that thech ild restraint
system is co rrectly /t ted. #
Set the front passenger seat as far back as
possible and mo vethe seat into the highest
position if possible. #
Fully retract the seat cushion length adjust-
ment. #
Adjust the seat cushion inclination so that the
front ed geofthe seat cushion is in the highest
position and there ar edge of the seat cushion
is in the lo west position. #
Set the seat backrest tothe most vertical
position possible. #
Install thech ild restraint system.
The entire base of thech ild restraint system
must al ways rest on the sitting sur face of the
front passenger seat. #
Always make sure that the shoulder belt strap
is cor rectly routed from the seat belt outlet of
th eve hicle tothe shoulder belt guide on the
ch ild restraint system.
The shoulder belt strap must be routed for-
wa rds and down wards from the seat belt out-
let. #
If necessar y,adjust the seat belt outlet and
th e front passenger seat accordingl y. Child safe
Child safe
ty locks
ty loc ks A
A
ctiv
ctiv ating or deactiv
ating or deactiv ating t
ating the c
he child safe
hild safe ty loc
ty lock f
k for
or
t
t he r
he r ear doors
ear doors &
W WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. 78 78
Occupant saf
ety

A
A
ctiv
ctiv ating and deactiv
ating and deactiv ating t
ating the c
he child safe
hild safe ty lock
ty lock
f
f or t
or t he r
he r ear side windo ws
ear side windo ws#
T
To activ
o activ at
ate/deactiv
e/deactiv at
ate:
e: press button 2.
The rear side wind owcan be opened or closed
in thefo llowing cases:
R indicator lamp 1is lit: via the switch on
th e driver's door R
indicator lamp 1is o.: via the switch on
th e cor responding rear door or driver's
door N
No
ot
tes on pe
es on pe ts in t
ts in the v
he vehicle
ehicle &
W
WARNING
ARNING Risk of accident and injury due
to animals leT unsecured or unat tended in
th eve hicle
If yo u lea veanimals in theve hicle unat tended
or unsecured, they could press buttons or
switches, for instance.
An animal ma y:
R activate vehicle equipment and become
trapped, forex ample
R switch systems on or o. and endanger
other road users
Unsecured animals may be thro wn about the
ve hicle in theev ent of an accident, or sudden
steering and braking manoeuvres, and injure
ve hicle occupants. #
Never lea veanimals unat tended in the
ve hicle. #
Always cor rectly secure animals while
driving, e.g. using a suitable animal car-
ri er. 80 80
Occupant saf
ety

#
Replace theke y batter y,if necessary
(/ page 83). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 88). #
Have theve hicle and keych ecked at a quali-
/ed specialist workshop.
Ther
Ther e is int
e is int erf
erfer
erence fr
ence fr om a pow
om a pow er
erful r
ful r adio signal
adio signal
sour
sour ce
ce
Po ssible causes if the function of KEYLESS-GO is
impaired:
R high voltage po wer lines
R mobile phones
R electronic devices (no tebooks, tablets)
R shielding due tome tal objects or induction
loops for electrical gate systems or automatic
bar riers #
Make sure that there is su1cient distance
between theke y and the po tential sou rce of
inter fere nce. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the aut
he automatic loc
omatic loc king f
king fea-
ea-
ture
ture The
vehicle is loc ked automatically when theve hi-
cle is switched on and the wheels are turning
fa ster than walking pace. #
T
To activ
o activ at
ate:
e: press and hold button 2for
appr oximately /ve seconds until an acoustic
signal sounds. #
T
To deactiv
o deactiv at
ate:
e: press and hold button 1for
appr oximately /ve seconds until an acoustic
signal sounds.
In thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
R while theve hicle is being tow- star ted or
pushed
R ifth eve hicle is being tested on a roller dyna-
mome ter P
P
o
ow
w er closing function
er closing function &
W
WARNING
ARNING Risk of becoming trapped when
th e doors close automatically
Body parts or objects can become trapped,
causing injuries. #
Ensure that no body parts or objects are
in the closing area. #
Automatic closing of the doors can be
cancelled bypulling the outer or inner
door handle. Opening and closing
87
87

R
R
unning boar
unning boar ds
ds Oper
Oper
ation of t
ation of t he r
he running boar
unning boar ds
ds Mer
Mer
cedes-Ma
cedes-Ma ybac
ybach v
h vehicles:
ehicles: theve hicle is equip-
ped with elect rically extendable running boa rds. If
yo u ha veselected the automatic mode in the mul-
timedia system, (/ page 90)theru nning boa rd
will extend automatically on there specti veside
when a door is opened. When theru nning boa rds
are extended, check theex cess width of theve hi-
cle.
Yo u can extend or retract theru nning boa rds
manually for cleaning (/ page 90).
% The running boa rds will extend and retract
only if theve hicle is stationar y.
In thefo llowing cases, theru nning boa rds will
re tract automaticall y:
R Ifyo u select an o.- road drive prog ram
( / page 205).
R Ifyo u activate car wash mode (/ page 373).
R Ifth e outside mir rors fold in automatically
(/ page 176). R
Ifyo u are driving at a speed greater than
4 km/h.
If yo u ha veselected the automatic mode in the
multimedia system and you manually extend the
ru nning boa rds when the doors are closed, the
ru nning boa rds will remain extended. Even if you
open a door and then close it again, theru nning
boa rds will remain extended. Automatic mode will
be reactivated only when you are driving at a
speed greater than 4 km/h. &
W WARNING
ARNING Risk of injury when extending
or retracting theru nning boa rds
The running boa rdsex tend at the side during
ex tension. During retraction, theru nning
boa rds are integ rated in the side skirt. Parts of
th e body could become trapped. There may
be people in thera nge of mo vement. There is
a risk of injur y. #
Always ensu rethat there are no people
within thera nge of mo vement of theru n-
ning boa rds. *
N
NOOTE
TE Damage totheru nning boa rds dur-
ing extension or retraction The
running boa rdsex tend at the side during
ex tension. During retraction, theru nning
boa rds are integ rated in the side skirt. #
Make sure that there is su1cient space
during extension and retraction. *
N
NOOTE
TE Damage totheve hicle body or
underbody due tolow ground clearance The
running boa rds are attached totheve hicle
body via the underbody. This limits thegr ound
clearance. #
Drive over obstacles, such as kerbs, par-
ticular lycarefully and slo wly. Obser
vethe cor responding displ aymessages in
th e inst rument cluster (/ page 442). Opening and closing
89
89

If an obs
tacle obstructs theta ilgate during the
automatic opening process, bloc kage detection
will stop theta ilgate. The automatic bloc kage
de tection function is only an aid. It is not a substi-
tute foryo ur attentiveness. Closing t
Closing t
he t
he tailg
ailgate
ate &
W
WARNING
ARNING Risk of injury from unsecured
items in theve hicle
If objects, lug gage or loads are not secured or
not secured su1cient ly,they could slip, tip
ov er or be thro wn around and thereby hit vehi-
cle occupants.
There is a risk of injur y,particular lyin the
eve nt of sudden braking or a sudden change
in direction. #
Always st owobjects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug-
ga ge or loads against slipping or tipping
ove r. Obser
vethe no tes on loading theve hicle. N No
ot tes on closing t
es on closing t he t
he tailg
ailgat
ate:
e: your vehicle is
equipped with automatic keyre cognition. If a key
belonging totheve hicle is de tected in theve hicle,
th eta ilgate will not be loc ked.
No tethat theta ilgate will not be loc ked in thefo l-
lowing situation:
R You ha veloc kedth eve hicle and close theta il-
ga te while a key belonging totheve hicle is
inside theve hicle.
and
R A second key belonging totheve hicle is not
de tected outside theve hicle.
Au tomatic keyre cognition is only an aid and is not
a substitute foryo ur attentiveness. #
Before locking, ensure that at least one key
belonging totheve hicle is outside theve hicle. #
T To close t
o close t he t
he tailg
ailgat
ate:
e: pull theta ilgate down-
wa rds slightl y.Re lease it as soon as it begins
to close. &
W
WARNING
ARNING Risk of becoming trapped dur-
ing automatic closing of theta ilgate
Body parts may become trapped. There may
be people in the closing area. #
Make sure that nobody is in the vicinity
of the closing area during the closing
process.
Use one of thefo llowing options tostop the
closing process:
R Press thep button on thekey.
R Press or pull there mo teoperating switch
on the driver's door.
R Press the closing or locking button on the
ta ilgate.
R Pull theta ilgate handle. V V
ehicles wit
ehicles wit h HANDS-FREE A
h HANDS-FREE A CCESS:
CCESS:it is also
possible tostop the closing process bymaking a
kicking mo vement below there ar bumper. Opening and closing
91 91

#
Switch on the po wer supply or theve hicle. #
Push remo teoperating switch 1until theta il-
ga te is fully closed. #
Press closing button 1ontheta ilgate.
V
V ehicles wit
ehicles wit h KEYLESS-GO
h KEYLESS-GO #
Press locking button 2ontheta ilgate.
If a key is de tected outside theve hicle, the
ta ilgate will close and theve hicle will be
loc ked. #
Press and hold thep button on thekey
(with theke y in the vicinity of theve hicle). V
V
ehicles wit
ehicles wit h HANDS-FREE A
h HANDS-FREE A CCESS
CCESS #
Make a kicking mo vement with your foot
below the bumper (/ page 93).
A
A ut
ut omatic rev
omatic rever
ersing function f
sing function f or t
or the t
he t ailg
ailgate
ate
The tailgate is equipped with automatic bloc kage
de tection with a reve rsing function. If a solid
object hinders or restricts theta ilgate when it is
closing automaticall y,theta ilgate will automati-
cally open again slightl y.Au tomatic bloc kage
de tection with reve rsing function is only an aid. It
is not a substitute foryo ur attentiveness when you
are closing theta ilgate. #
During the closing process, make sure that no
body parts are in the closing area. &
W
WARNING
ARNING Risk of becoming trapped
despite reve rsing function
The reve rsing function will not react:
R tosoT, light and thin objects, e.g. /n gers
R towa rdsth e end of the closing procedure
In these situations in particular, there ve rsing
function cannot pr event someone being trap-
ped. 92
92
Opening and closing

#
Ensure that no body parts are in the
closing area.
If someone is trapped, either: R Press thep button on thekey.
R Press or pull there mo teoperating switch
on the driver's door.
R Press the closing or locking button on the
ta ilgate.
R Pull theta ilgate handle. HANDS-FREE A
HANDS-FREE A
CCESS function
CCESS function Wi
th HANDS-FREE ACCESS you can open, close
or stop the closing process of theta ilgate byper-
fo rm ing a kicking mo vement under there ar
bumper.
The kicking mo vement triggers the opening or
closing process alternatel y. Obser
vethe no tes when opening (/ page 90)
and closing (/ page 91)theta ilgate.
% Twowa rning tones sound when theta ilgate is
opening or closing. &
W WARNING ARNING Risk of burns caused bya hot
ex haust system
The vehicle exhaust system can become very
hot. If you use HANDS-FREE ACCESS, you
could burn yourself bytouching theex haust
system. #
Always ensu rethat you only make a kic k-
ing mo vement within the de tection range
of the sensors. *
N
NOOTE
TE Vehicle damage due touninten-
tional opening of theta ilgate R
when using an automatic car wash
R when using a high pressure cleaner #
Deacti vate the function of theke y in
th ese situations.
or Opening and closing
93
93

R
The load compartment co ver has been
re mo ved. #
Remo vethe emer gency key (/ page 83). #
Inse rtemer gency key2 into opening 1in
th e trim and push it in.
The tailgate will be unloc ked. Side windo
ws
Side windo ws Opening and closing t
Opening and closing t
he side windows
he side wind ows &
W
WARNI NG
ARNI NGRisk of becoming trapped when
opening a side wind ow
When you open a side windo w,parts of the
body could be dr awn in or become trapped
between the side window and window frame. #
When opening, make sure that nobody is
to uching the side windo w. #
If someone is trapped, release the but-
to n immedia tely or pull it in order to
close the side window again. &
W
WARNING
ARNING Risk of becoming trapped when
closing a side window
When closing a side windo w,body parts could
be trapped in the closing area in the process. #
When closing, make sure that no body
parts are in the closing area. #
If someone is trapped, release the but-
to n immedia tely or press the button in
order toreopen the side windo w. &
W
WARNI NG
ARNI NGRisk of becoming trapped when
ch ildren operate the side windo ws
Children could become trapped if they operate
th e side windo ws,particular lywhen unat ten-
ded. #
Activate thech ild saf ety lock forth ere ar
side wind ows. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Never lea vechildren unattended in the
ve hicle. R
R
eq
eq uir
uir ements:
ements:
R The po wer supply or theve hicle has been
switched on. 96
96
Opening and closing