2021 MERCEDES-BENZ GLS SUV keyless

Ac
tiv atin g/deac tivatin gthe acoustic lock ing
ve rificat ion signa l Mult
imed iasystem:
4 © 5
Set ting s5
Vehicle #
Activateor deacti vate Acou sticLock . Ac
tiv atin g/deac tivatin gthe pani calar m Re
quirement s:
R The ignit ionisswitc hedoff. #
Toactiv ate: press butt on1 forapp rox‐
ima tely one second.
A visual andaudibl ealar mistrigg ered. #
Todeac tivate: briefly pr ess button1 again.
or #
Press thest ar t/ stop butt ononthecoc kpit
(t he Smar tKey isinsid eth eve hicle). Changing
theunloc kingsettings Po
ssible unlockingfunctions oftheSmar tKey :
R Cen tralunlo cking
R Unloc kin gth edr iver's door andfuel filler flap #
Toswitc hbe tw een settings: press the
Ü andß buttonssimul taneousl yfo r
appr oximat elysix seco ndsuntilth eindicat or
lam pflashes twice.
Op tions ifth eunloc kingfunction forth edr iver's
door andfuel filler flap has been selected:
R Tounlo cktheve hicl ece ntr ally:press the
Ü buttontwice.
R Vehicl eswith KEYLESS-GO :if yo uto uc h
th einner surface ofthedoor handle onthe
dr iver's door ,onl yth edr iver's door andfuel
fi ller flap areunlo cked. Deactiv
atingtheSmar tKey functio ns If
yo udo notuse theve hicle oraSmar tKey for
an extende dpe riod oftime, youcan reduce the
ener gycon sum ption ofthere spectiv eSmar tKey .
To do so, deactiv ateth eSmar tKey functions. #
Todeac tivate: press theß buttononthe
Smar tKey twi ce inqu ick succ ession .
The Smar tKey indic ator lam pflashes twice
br ief lyand light sup once. #
Toactiv ate: press anybutt onontheSmar t‐
Ke y.
% When theve hicle isstar tedwit hth eSmar t‐
Ke yin themar kedspace ofthecent ercon ‐
sole, theSmar tKey functions areau tomati‐
cally activated (/ page16 9). 68
Opening an dclos ing

#
Tounlo cktheve hicl e:touc hth einner sur‐
fa ce ofthedoor handle. #
Toloc kth eve hicl e:touc hsen sor surface
1 or2. #
Convenience closing:touc hre cess edsen‐
sor surface 2untilth eclosing process has
been completed.
% Further information oncon venie nce closing
(/ page 83) .
If yo uopen theta ilg atefrom outs ide,itis aut o‐
matic allyunloc ked. Pr
oblems withKEYLESS-GO Yo
ucan nolon gerlo ck orunloc kth eve hicl e
using KEYLESS-GO .
Po ssible causes:
R The Smar tKey functions have been deactiv a‐
te d(/ page68).
R The Smar tKey batt eryis we ak ordisc harged.
R The Smar tKey isfaulty . #
Activateth eSmar tKey functions
(/ page68). #
Che ckthebatt eryusing theindicat orlam p
and replace ifnec essar y(/ page69). #
Use theemer gency keyto unlo ckorloc kth e
ve hicle (/page69). #
Have theve hicle andSmar tKey checkedat a
qu alif ied spec ialistwo rkshop.
Ther eis int erfere nce from apo we rful radio
sig nal source
The KEYLESS-G Ofuncti onisim pa ired by,fo r
ex am ple:
R Highvo ltag epo we rlines
R Mobi lephones
R Electr onicdevices (notebook s,table ts)
R Shielding duetome talobje ctsor induc tion
loops forelectr icalgate systems oraut o‐
matic barrier s #
Mak esur eth at ther eis asuf ficie ntdist anc e
be tween theSmar tKey and thepo tentia l
sou rceof interfere nce. Ac
tiv atin g/deac tivatin gthe automati clo ck ‐
ing featur e The
vehicle isloc kedaut omatic allywhen the
ignit ionisswitc hedonand thewheels aretur n‐
ing faster than walkin gpace. #
Toactiv ate: press and hold button2 for
appr oximat elyfive seconds untilanacous tic
signal sounds. 72
Opening andclosing

#
Swi tchon thepo we rsupp lyor theignition . #
Press remo teoper ating switch1 forth e
ta ilg ate. #
Press clos ingbutt on1 ontheta ilg ate.
Ve hicl eswith KEYLESS-GO #
Press locking button2 ontheta ilg ate.
If aSmar tKey isde tected outsid eth eve hicle,
th eta ilg atewill clos eand theve hicle willbe
loc ked. #
Press and hold the008B buttononthe
Smar tKey (wit hth eSmar tKey inthevicin ity
of theve hicle).
Ve hicl eswith HANDS -FREEACCESS #
Mak eakic kin gmo vement withyo ur foot
belo wthebum per(/ page78 ).
Au tomatic reve rsing funct ionforthe tailga te
The tailg ateis eq uipped withaut omat icobje ct
re cogni tionwith are ve rsing func tion.If asolid
obje cthinde rsor restricts theta ilg atewhen itis
clos ingautomat ically,theta ilg atewill automat i‐
call yopen again slight ly.Au tomatic object recog‐
nitio nwi th reve rsing func tion isonl yan aid. Itis
no ta subs titutefo ryo ur att entiven ess when you
ar eclo singth eta ilg ate. #
Dur ing theclosing process, makesur eth at
no body partsarein theclosing area. &
WARNIN GRisk ofbeco ming trap ped
des pite reve rsing func tion
The reve rsing func tion willnotre act :
R Tosof t,light andthin obje cts, e.g. fing ers Ope
ning andclosing 77

Con
venience opening (ventilating theve hicl e
bef orest ar ting ajour ney) &
WARNIN GRisk ofentr apment when
ope ning asid ewi ndo w
Whe nope ning asid ewi ndo w,par tsof the
body could bedraw nin or become trap pe d
be twee nth eside windo wand windo wframe. #
When opening ,mak esur eth at nobody
is touc hin gth eside windo w. #
Release thebutt onimmediat elyif
somebody becomestrapped. #
Press and hold theÜ buttononthe
Smar tKey .
The follo wing functionsar eper form ed:
R The vehicle isunloc ked.
R The side windo wsareopen ed.
R The slidin gsun roof isopened.
R The panor amicsliding roof isopened.
R The seat ventil ation ofthedr iver's seat is
switc hedon. %
Ifth ero ller sunblin dof thepanor amicsliding
sunr oofisclosed, thero ller sunblin dis
open edfirs t.
% Ifth ero ller sunblin dsofthere ar door sar e
clo sed, thero ller sunblin dsareopen edfirs t. #
Tointerru pt con venience opening: release
th eÜ button. #
Tocont inue convenience opening: press
and hold theÜ buttonagain. Con
venience closing (closing theve hicl e
fr om outside ) &
WARNIN GRisk ofentr apment dueto not
pa ying attenti onduring con venie nce
clo sing
Whe nth econ venie nce closing featur eis
oper ating,par tsof thebody could become
tr apped intheclosing area oftheside win‐
do wand thesliding sunroof. #
When thecon venie nce closing featur e
is operatin g,mon itor theent ire closing pr
ocess andmakesur eth at no body
par tsarein theclosing area. #
#
Press and hold theß buttononthe
Smar tKey .
The follo wing functionsar eper form ed:
R The vehicle isloc ked.
R The side windo wsareclo sed.
R The slidin gsun roof isclosed.
R The panor amicsliding roof isclosed. #
Tointerru pt con venience closing: release
th eß button. #
Toclose thero ller sunblind s:press and
hold theß buttonagain.
% Con venie nce closing can also be operated
wi th KEYLESS- GO(/ page71 ). Openin
gand closin g83

Indicat
orlam p1 flashes whentheAT Asy stem
is armed.
The ATAsy stem isdeactiv ated aut omaticall yin
th efo llo wing situat ions:
R afte runloc kingtheve hicle withth eSmar tKey
R afte runloc kingtheve hicle using KEYLES S-
GO R
afte rpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestow agecom partment
(/ page16 9)
% WhentheMer cedes‑ Benzemergency call
sy stem isactiv eand thealar mstay son for
mor eth an 30 sec onds, ames sageis aut o‐
mat icall ysen tto theCus tomer Assis tance
Ce nter (/ page 310).
% Inthecase ofsevere batt erydisc harging,
th eanti- theftalar msystem isaut omaticall y
deactiv ated tofacil itat eth ene xt engine
st ar t.
Deact ivat ing theATA #
Press theÜ, ßor008B buttononthe
Smar tKey .
or #
Press thest ar t/ stop butt onwithth eSmar t‐
Ke yin themar kedspace (/page16 9)
Dea ctivat ingth eala rm using KEYLESS-GO #
Grasp theoutside doorhandle withth e
Smar tKey outside theve hicle. Fu
nction oftheto w- aw ay alar m %
This function mayno tbe available inall
coun tries.
An audible andvisual alarmistrigg ered ifan
alt eratio nto your vehicle's angleof inclination is
de tected whi letheto w- aw ay alar misarmed.
The tow- aw ay alar misaut omat icallyar med afte r
appr oximat ely60 seco nds:
R afte rloc king theve hicle withth eSmar tKey
R afte rloc king theve hicle using KEYLES S-GO
The tow- aw ay alar mison lyarmed when thefo l‐
lo wing compone ntsar eclos ed:
R thedoor s
R theta ilg ate
The tow- aw ay alar misaut omat icallydeac tiva‐
te d:
R afte rpr essing theÜ or008B buttonon
th eSmar tKey
R afte rpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestow agecom partment
(/ page16 9) Op
ening an dclos ing 91

Loc
king/u nlocking
Ac tivati ng/d eactiv ating theaut o‐
matic locking featur e.............................7 2
Emerg encykey ...................................... 73
KEYLESS- GO................................... .......71
Opening theta ilg ate .............................. 75
Un loc kin gand open ingdoor sfrom
th einside ..............................................7 0
LO WRAN GE
Shif ting .......................................... ...... 190
Lo w-beam headla mps
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 143
Lo we ring theve hicl e
Re ar oftheve hicle .............................. 235
Lu bricant additives
see Additiv es
Lu ggage
Sec uring ................ ...............................1 19
Lu mbar support
se eLu mbar support(4-w ay)
Lu mbar support(4 -w ay)...........................9 8 M
MA GIC VISIONCONTR OL
Wi ndsh ield wipe rs <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 153
Maint enanc e
Ve hicle ............................................. ...... 24
Maint enanc e
see ASSYSTPL US
Malfunct ion
Re stra int system .............................. ...... 37
Malfunc tionmessag e
see Displa ymessa ge
Map ........................................................... 297
Displa yingonline mapcontents .......... 298
Displa yingweather informat ion ...........2 98
Mo ving ................................................. 297
Selecti ngthemap orient ation .............2 97
Se tting themap scale ..................... ..... 297
Switc hingfree wa yin fo rm atio n
on /of f.................................................2 97
Massag epr og ram
Ov ervie w .......................................... ... 108
Re settin gth ese ttings .......................... 109 Massag
epr og rams
Sel ecti ngthefront seats ..................... 109
Massag ese ttings
Re settin g............................................. 109
Maximum loadratin g<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......369
Maxi mum permis sibl elo ad
Ca lcu latio nex am ple ............................ 365
De term inin g........................................ 364
Max imumtirepr essur e.......................... 369
MB UX Interior Assis tant
Swit ching there adin glight forth e
dr iver and front passeng eron/ off
con tact-fr ee<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> .............286
Swi tching thesear chlight forth e
dr iver on/ off.......................................2 86
MBUX Interior Ass istan t(multime dia
sy stem) .................................................... 285
Ov ervie w .............................................2 85
MBUX multimedia system ...................... 281
Ac tivati ng/d eactiv ating standb y
mode ...................................................2 01
Con figur ing drive pr ogr am I... .............. 184
No tes ................................................... 281 492
Index

Tw
o-w ayradio s
Fr eq uencies ......................................... 391
No teson installation ...........................3 90
Tr ans miss ionoutput (max imum ).......... 391 U
Un loc king setting ...................................... 68
Up dat es
Im por tant system updat es.................. 290
USB port
Re ar passe nger com partment .............1 37 V
Ve hicl e...... ................................................ 169
Ac tivati ng/d eactiv ating standb y
mode ...... .............................................2 01
Collis iondetection (parking) .......... ...... 200
Cor rect use <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> ..............28
Dat aacq uisiti on <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> ........31
Dat ast or ag e .......................................... 31
Dia gno stics con nection .................. .......2 7
Eq uipme nt............ ................................. 23
Li mit edWarrant y...................................3 1
Loc king (automatical ly)......................... 72 Loc
king (from inside )..... .................... .... 71
Loc king (KEYLESS-GO) .................... ......7 1
Loc king/unloc king(emerg encykey) ...... 73
Lo we ring <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>384
Ma intena nce <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ................24
Medical aids.................................... ...... 29
Pa rking foran extende dpe riod ........... 200
Pr oblem notification ........................ ...... 29
QR code rescue card..................... ........ 31
Qua lified speci alistwo rkshop ................2 8
Ra ising ................................................ 380
St andb ymode function .................. .....2 00
St artin g(eme rgency operation
mode) .................................................. 169
St artin g(R emo teOnline) ............... ...... 171
St artin g(sta rt/s topbutt on) ............ .....1 69
Switc hingoff(s ta rt/s topbutt on) .... .....1 94
To wing .................................................2 73
Un loc kin g(fr om insid e).................. ........ 71
Un loc kin g(KE YLE SS-GO) ................ .......7 1
Ve ntil ating (co nve nience openi ng) ......... 83
Ve hicl edata
Ang leof app roac h/d epar ture.............4 03
Displ aying (DYN AMI CSE LECT) ...... ...... 184
Fo rding dep th<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 403Ma
ximu mgrad ient-cli mbingcap abil‐
ity <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 403
Ro ofload ............................................. 403
Tu rning circle .......................................4 01
Ve hicle height ...................................... 401
Ve hicle length...................................... 401
Ve hicle width....................................... 401
Wheelbase ...........................................4 01
Ve hicl edata stor ag e
Ev ent datare cor der s<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> .33
MBUX multimedia system/Mer cedes
me connect ...........................................3 3
Ve hicl edimens ions...... ........................... 401
Ve hicl eele ctroni cs
No tes .................................................. 390
Tw o-w ayradios .................................... 390
Ve hicl eiden tificati onnumber
see VIN
Ve hicl eiden tificati onplat e...... ..............392
Pa int code ...........................................3 92
VIN ...................................................... 392
Ve hicl eint erior
Coo ling orhea ting (Remo teOnline) ..... 170 Inde
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