2020 MERCEDES-BENZ GLS SUV Owners Manual

Key
Overview of
key functions &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unsupervised in theve hi‐
cle, they could, in pa rticular:
R open doors, thereby endangering other
persons or road users.
R get out and be stru ck byoncoming traf‐
fi c.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of reach of
ch ildren. *
NO
TEDama getotheke y caused by
magnetic fields #
Keep theke yaw ay from strong mag‐
netic fields. Ve
hicle key
1 Locks
2 Indicator lamp 3
Unloc ks
4 Opens/closes theta ilgate
% If indicator lamp 2does not light up af ter
pressing theÜ orß button, the bat‐
te ry iswe ak or possibly dischar ged. Re place
th e battery as soon as possible.
Re place theke y bat tery ( / page 80).
The key loc ksand unlo cksth efo llowing compo‐
nents:
R doors
R Fuelfiller flap
R tailgate
If th eve hicle is not opened within appr oximately
40 seconds af ter unlocking, it loc ksagain. Anti-
th eft pr otection is primed again.
Do not keep theke yto ge ther with electronic
devices or me tal objects. This can af fect the
ke y's functionalit y.
Do not keep theke y in thete mp erature-contro l‐
led cup holder. Otherwise, theke y will not be
re liably de tected. 78
Opening and closing

Ac
tivating/deactivating the acoustic lo cking
ve rification signal Multimedia sy
stem:
4 © 5
Settings 5
Vehicle #
Activate or deacti vate Acoustic lock .
% Please no
te:
The selected setting forth e acoustic locking
ve rification signal must comply wi th there le‐
va nt national road and traf fic re gulations. In
some countri es, including German y,using
th e acoustic locking verification signal is for‐
bidden bytraf fic la ws(in accordance with
§16 Para. 1 and §30 Para. 1 of the German
national road traf fic re gulations). The driver
of theve hicle must comply with these regu‐
lations. In countri es wherethe use of this
function is forbidden, this function is not
activated in theve hicle and must not be acti‐
va ted. Changing
the unlocking settings Po
ssible unlocking functions of theke y:
R Central unlocking R
Unlocking the driver's door and fuel filler flap #
Toswitch between settings: pressthe
Ü andß buttons simultaneously for
appr oximately six seconds until the indicator
lamp flashes twice.
Options if the unlocking function forth e driver's
door and fuel filler flap has been selec ted:
R Tounlo cktheve hicle centrall y:press the
Ü button twice.
R Vehicles with KEYLESS-GO: ifyo uto uch
th e inner sur face of the door handle on the
driver's door, only the driver's door and fuel
fi ller flap are unlo cked. Deactivating
theke y functions If
yo u do not use theve hicle or a keyfo r an
ex tended pe riod of time, you can reduce the
energy consum ption of there spective key.Todo
so, deactivate theke y functions. #
Todeactivate: presstheß button on the
ke y twice in quick succession.
The key indicator lamp flashes twice brief ly
and lights up once. #
Toactivate: press any button on thekey.
% When theve hicle is star ted with theke y in
th estow age compartment of the cent recon‐
sole, theke y functions are automatical ly
activated (/ page189). Re
moving/inserting the eme rgency key Re
moving the eme rgency key Opening and closing
79

#
Press release knob 1.
Emer gency key2 is pushed out slight ly.#
Pull out emer gency key2 until it en gage s in
th e intermediate position. #
Press release knob 1again and fully
re mo veemer gency key2.
Inserting the emer gency key #
Press release knob 1. #
Insert emer gency key2 tothe intermediate
position or fully until it engages.
% You can use the intermediate position of
emer gency key2 toattach theke yto akey
ri ng. Re
placing the key battery &
DANG ER Serious damage tohealth
caused byswallowing batteries
Batteries contain toxic and cor rosive sub‐
st ances. Swallowing bat teries may cause
serious damage tohealth.
There is a risk of fata l injur y. #
Keep batteries out of there ach of chil‐
dren. #
If batteries are swallo wed, seek medical
attention immediately. +
ENVIRONMEN
TALNO TEEnvironmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
in pollutants. It is
illegal todispose of them with the household
ru bbish. #
Dispose of batteries in an
environmen tally responsible manner.
Ta ke dischar ged batteries toaqu alified
specialist workshop or toa collection
point for used batteries. Re
quirements:
R Yourequ ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a qualified specialist work‐
shop. #
Remo vethe emer gency key ( / page 79). #
Press release knob 2down fully and slide
co ver1 inthe direction of the ar row. #
Fold out co ver1 inthe direction of the
ar row and remo ve. #
Remo vebattery compartment 3and take
out the dischar ged batter y. 80
Opening and closing

#
Insert the new battery into battery compart‐
ment 3. Obser vethe positive pole marking
in the battery compartment and on the bat‐
te ry when doing this. #
Push in battery compartment 3.#
Re-attach co ver1 and push it until it
engages. Problems with
theke y,troublesho oting Yo
u can no lon ger lo ckor unlock theve hicle
Po ssible causes:
R The key bat tery iswe ak or dischar ged.
R The key is faulty. #
Check the battery using the indicator lamp
(/ page 78). #
Replace theke y bat tery, if necessary
(/ page 80). #
Use the emer gency keyto lock or unlock
(/ page 84). #
Have theke ych ecked at a qualified specialist
wo rkshop. There is inter
fere nce from a po werful radio
signal source
The key function is impaired by,fo rex ample:
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 gatesystems or auto‐
matic bar riers #
Make sure that there is suf ficient di stance
between theke y and the po tential sou rce of
inter fere nce.
Yo u ha velost a key #
Have theke y deacti vated at a qualified spe‐
cialist workshop. #
If necessar y,ha ve the mechanical lock
re placed as well. Doors
Note
s onthe additional door lock The additional door lock is only
available for
ve hicles forth eUni ted Kingdom. &
WARNING Risk of inju ryto persons
inside theve hicle when the additional
door lock is activated
If th e additional door lock is activated, the
doors can no longer be opened from the
inside. #
Never lea vepersons, in particular chil‐
dren, unat tended in theve hicle. #
Ifth ere are persons in theve hicle, do
not activate the additional door loc k. The additional door lock is automatically activa‐
te d in thefo llowing situations:
R The vehicle is loc ked using thekey.
R The vehicle is loc ked using KEYLESS-GO. Opening and closing
81

If
th eve hicle has been loc ked via Mercedes me
connect, the additional door lock is not activa‐
te d.
If th e additional door lock is activated, the doors
cann otbe opened from the inside.
% After locking you can issue a signal with the
horn.
Yo u can pr eventthe additional door lock from
being activated bydeactivating interior pr otec‐
tion before locking theve hicle (/ page104). Un
locking/opening the doors from the inside #
United Kingdom onl y:obser vethe no tes on
th e additional door lock (/ page81). #
Pull door handle 2.
Locking pin 1pops up when the door is
unloc ked. Centrally locking and unlocking
theve hicle
from the inside Mercedes-Mayba
chvehicles: the buttons are
also located on there ar doors. #
Tounlo ck:press button 1. #
Tolock: press button 2.
This does not lock or unlock the fuel filler flap.
The vehicle is not unloc ked:
R Ifyo u ha veloc kedth eve hicle using thekey.
R Ifyo u ha veloc kedth eve hicle using KEY‐
LESS-GO. 82
Opening and closing

Locking/unlocking
theve hicle with KEY‐
LESS-GO Re
quirements:
R The key is outside theve hicle.
R The dis tance between theke y and theve hicle
does not exceed 1 m.
R The driver's door and the door at which the
door handle is used are closed. #
Tounlo cktheve hicle: touch the inner sur‐
fa ce of the door handle. #
Tolock theve hicle: touch sensor sur face
1 or2. #
Convenience closing: touch recessed sen‐
sor su rface 2until the closing process has
been comple ted.
% Further information on con venience closing
(/ page 95).
If yo u open theta ilgate from outside, it is auto‐
matically unloc ked. Problems with KEYLESS-GO, troubleshooting
Yo
u can no lon ger lo ckor unlock theve hicle
using KEYLESS-GO
Po ssible causes:
R The key functions ha vebeen deactivated.
R The key bat tery iswe ak or dischar ged.
R The key is faulty. #
Activate theke y functions (/ page 79). #
Check the battery using the indicator lamp
(/ page 78). #
Replace theke y bat tery, if necessary
(/ page 80). #
Use the emer gency keyto lock or unlock
(/ page 84). #
Have theve hicle and keych ecked at a quali‐
fi ed specialist workshop.
There is inter fere nce from a po werful radio
signal source
The KEYLESS-GO function is impaired by,for
ex ample:
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 auto‐
matic bar riers #
Make sure that there is suf ficient di stance
between theke y and the po tential sou rce of
inter fere nce. Opening and closing
83

Ac
tivating/deactivating the automatic lo ck‐
ing feature The
vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace. #
Toactivate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds. #
Todeactivate: press and hold button 1for
appr oximately five 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/
pushed.
R Ifth eve hicle is being tested on a roller dyna‐
mome ter. Po
we r closing function &
WARNING Risk of becoming trapped
when the 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. If
yo u push the door into the lock tothefirst
de tent position, the po wer closing function will
auto matical lypull the door into the loc k. Locking/unlocking
the driver's door with the
emer gency key %
Ifyo u wish tolock theve hicle entirely using
th e emer gency key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the emer gency key. 84
Opening and closing

#
Remo vethe emer gency key ( / page 79). #
Insert the emer gency key as far as it will go
into opening 1inthe co ver. #
Pull and hold the door handle. #
Pull the co ver on the emer gency key as
st ra ight as possible away from theve hicle
until it releases. #
Release the door handle. #
Tounlo ck:turn the emer gency key anti-
clo ckwise toposition 1. #
Tolock: turnthe emer gency key clo ckwise to
position 1. #
Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly. Ru
nning boards Operation of
theru nning boards Mercedes-Maybach
vehicles: theve hicle is
equipped with electrically extendable running
boards. If you ha veselected the automatic mode
in the multimedia sy stem, (/ page 86) the
ru nning board will extend au tomatical lyon the
re spective side when a door is opened. When
th eru nning boards are extended, check the
exc ess width of theve hicle.
Yo u can extend or retract theru nning boards
manually for cleaning (/ page 86).
% The running boards will extend and retract
only if theve hicle is stationar y.
In thefo llowing cases, theru nning boards will
re tract au tomatical ly:
R Ifyo u select an off- road drive program
(/ page 201).
R Ifyo u activate car wash mode (/ page 366).
R Ifth e outside mir rors fold in automatically
(/ page 172). Opening and
closing85