2020 MERCEDES-BENZ GLS SUV sunroof

The
tow- aw ay alar misaut omat icallydeac tiva‐
te d:
R Afterpr essing theÜ or008B buttonon
th eSmar tKey
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthemar kedspace (/page18 2)
R Afterunloc kingtheve hicle using KEYLES S-
GO
Inf ormation ondetecting damag eon apa rked
ve hicle (/page21 7). Ar
min g/dis armin gthe tow- aw ay alar m Mul
timedi asy stem:
4 © 5
Set ting s5
Quick Access #
Activateor deacti vate Tow-away Protection.
The tow- aw ay alar misarmed again inthefo llo w‐
ing cases :
R The vehicle isunloc kedag ain.
R Adoor isopened.
R The vehicle isloc kedag ain. %
Ifqu ick acc ess isuna vailable, selectth e
Vehicle submenu intheSet ting smain menu
to arm or disar mtheto w- aw ay alar m. Fu
nction oftheint erior motion sensor %
This function mayno tbe available inall
coun tries.
When theint erior motion sensor isactiv ated, a
visual andaudible alarmistrigg ered ifmo ve‐
ment isde tected intheve hicle interior .
The interior motion sensor isactiv ated aut omati‐
cally afte rapp roxima tely tenseco nds:
R afte rloc king theve hicle withth eSmar tKey
R afte rloc king theve hicle using KEYLES S-GO
The interior motion sensor isonl yactiv ated
when thefo llo wing compone ntsar eclos ed:
R thedoor s
R theta ilg ate The
interior motion sensor isaut omat icallydeac‐
tiv ated:
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
(/ page18 2)
R afte runloc kingtheve hicle using KEYLES S-
GO
The follo wing situat ionscanlead toafa lse
alar m:
R movingobje ctssuc has masc otsin theve hi‐
cle interior
R when theside windo wisopen
R when thesliding sunroofisopen
R when thepanor amicsliding sunroofisopen Openin
gand closing 99

#
Turn theemer gency keya qu artertur ncloc k‐
wise 0048(to loc k)or count er-cloc kwise 0047(to
unloc k). At
tac hin garo of rack &
WARNIN GRisk ofinju ryifth emaximum
ro of load isexc eeded
When youload thero of, thecent erofgrav ity
of theve hicle rises and theusual driving
ch aract eristic sas wellas thesteer ing and
br aking charact eristic sch ang e.Dur ing cor‐
ner ing,th eve hicle tiltsmorest ro ng lyand
ma yre act mor eslugg ishlyto steer ing move‐
ments.
If yo uexc eed themaximum roof load, the
dr iving charact eristic s,as wellas thesteer‐
ing and braking charact eristic s,will be
gr eat lyim pair ed. #
Alw ayscom plywit hth emaximum roof
load andadjus tyo ur drivin gst yle. Yo
uwill find informa tionon themaximum roof
load inthe"T ec hnical data"sect ion. *
NO
TEVehicle damag efrom non-
appr ovedro of rack s The
vehicle could bedamag edbyroof rack s
whic hha ve notbe en tested and appr ovedby
Mer cedes-Ben z. #
Use onlyro of rack ste sted and
appr ovedfo rMer cedes-Benz. #
Dependi ngon theve hicle equipment,
ensur eth at when thero of rack isins tal‐
led, thesliding sunroofcan befully
ra ised. #
Depe ndingon theve hicle equipment,
ensur eth at when thero of rack isins tal‐
led, theta ilg atecan befullyopen ed. #
Position theload onthero of rack in
suc hawa yth at theve hicle willnotsus‐
ta in damag eev en when itis in mo tion . *
NO
TEDama getothepanor amaroof wit h
po we rtilt/sli dingpanel causedbyano n-
appr ovedro of rack The
panor amaroof wit hpo we rtilt/sli ding
panel maybe dama gedby thero of rack if
yo uatt em pttoopen itwhen usingaro of
ra ck notte sted and appr ovedfo rMer cedes-
Benz. #
When aro of rack isins talled, open the
panor amaroof wit hpo we rtilt/sli ding
panel onlyif th is has been tested and
appr ovedfo rMer cedes-Benz.
The panor amaroof wit hpo we rtilt/sli ding
panel maybe raised toallo wventil ation of
th eve hicle interior . #
Secur eth ero of rack tothero of railing. #
Obser vethemanuf acturer'sinstallation
ins truct ions . 14
2
Sea tsand stow ing

Ensu
rethefo llo wing beforest ar tin gth eengine:
R The legalstipulation sin thear ea wher eyo ur
ve hicle ispar kedallo wengin est ar tin gvia
smar tphon e.
R Itis saf eto star tand runth eengine where
yo ur vehicle ispar ked.
R The fuel tank issu fficien tly filled.
St arting theve hicl e(R emo teOnline) &
WARNIN GRisk ofcrus hing orentr ap‐
ment dueto unin tentio nalstar tin gof the
engine
Limbs couldbecrushed ortrapped ifth e
engine isstar tedunint entionall ydur ing
ser vice ormaint enanc ewo rk. #
Alw ayssecur eth eengine agains tunin‐
te ntio nalstar tin gbef orecar rying out
maint enanceorrepair work. Re
quirement s:
R Park position 005Disselect ed.
R The anti- theftalar msystem isno tactiv ated. R
The panic alarmisno tactiv ated.
R The hazar dwa rning light system isswitc hed
of f.
R The hood isclosed.
R The door sar eclosed andlocked.
R The windo wsand slidin gsun roof areclosed. #
Startth eve hicle using thesmar tphon e.
Af tereve ryvehicle star t,th eengine runs for
te nminu tes.
Yo ucan carryout amaximum oftwoconsec u‐
tiv est ar tin gatt em pts. The vehicle mustbe star‐
te donc ewit hth eSmar tKey bef oretrying to
st ar tth eve hicle again withth esmar tphon e.you
can stop theve hicle again atanytime.
% Further information canbefound inthe
smar tphone app.
Secur ingtheengine agains tst ar ting before
car rying out maintenance orrepair work: #
Swi tchon thehazar dwa rning light system.
or #
Unloc kth edoor s. or #
Open aside windo wor thesliding sunroof. Br
eaking-in notes To
preser vetheengine during thefirs t
1, 000 miles(1 ,500 km):
R Drive at varying road spee dsand engine
spee ds.
R Drive th eve hicle indrive pr ogr am A
or ;.
R Shif tto thene xt highes tge ar attheve ry lat‐
es twhen theneedle reac hes thelas tth ird
bef oreth ere dar ea intheta ch ome ter.
R Donotshi ftdo wn age ar man uallyin order to
br ak e.
R Avoid overstrai ning theve hicle, e.g.driving at
full thro ttle .
R Donotde press theaccelera torpeda lpas t
th epr essur epoint (kickdo wn).
R Onlyincr ease theengine speedgradually and
accelera tetheve hicle tofull spee daf te r
1, 000 miles(1 ,500 km). 18
4
Driving and parking

#
Bring theve hicle toast ands tillby appl ying
th ebr ak epedal. #
Onuphill ordownhill gradients, turnth efront
wheels sothat theve hicle rolls towa rdsth e
curb ifit star ts mo ving. #
App lytheelectr icpar king brak e. #
Engage trans missi on positio n005D inast atio n‐
ar yve hicle withth ebr ak epedal applied
(/ page200). #
Switc hof fth eengine andtheignition by
pr essing button1. #
Release theser vice brak eslo wly. #
Getout oftheve hicle andlockit.
% When youpar kth eve hicle, youcan still
opera tetheside windo wsand thepanor amic
sliding sunroofforapp roxima tely five
minut esifth edr iver's door isclosed.
% When youpar kth eve hicle, youcan still
opera tetheside windo wsand thesliding
sunr oofforapp roxima tely five minut esifth e
dr iver's door isclosed. Gar
agedoor opener Pr
og rammin gbutt onsfo rthe garage doo r
ope ner &
DANG ER Risk ofdeat hcause dby
ex haus tga ses
Combus tionengines emitpoisonous exhaus t
ga ses suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisonin g. #
Neverlea vetheengine or,if pr esent ,
th eauxiliar yheating running inan
encl osedspa cewithout sufficie ntventi‐
la tio n. &
WARNIN GRisk ofinju rywhen opening
or clos ingadoor withth ega rage door
opener
When youoper ateor program thedoor with
th eint egr ated garage door opener ,people in
th era ng eof mo vement ofthedoor may
become trapped orstru ck bythedoor . #
When usingtheint egr ated garage door
opener ,alw aysmak esur eth at nobody
is wit hin thera ng eof mo vement ofthe
door . Onl
yoper ateth efo llo wing doorsusing the
ga rage door opener :
R Door swit hasaf etyst op and reve rsing fea‐
tur e
R Doorswhic hcon form tothecur rent U.S.
sa fety standar ds
Re quirement s:
R The vehicle hasbeen parkedoutside the
ga rage oroutside thera ng eof mo vement of
th edoor .
R The engine isswitc hedoff.
R The ignition isswitc hedon.
% The garage door opener function isalw ays
av ailable whentheignition isswitc hedon. 21
0
Driving and parking

1
Front roof area
2 Rear roof area
3 Rear fende rs
On vehicles withapanor amicsliding sunroof,
ins talling anant enn ato thefront orrear roof
ar ea isno tper mitt ed. On
there ar fende rs,it is recomme ndedthat you
ins tallth eant enn aon theside oftheve hicle
closes tto thecent erofthero ad.
Use Tech nica lSpe cifica tionISO/T S21 609 (Road
Ve hicles –"EMCs forins tallation ofafte rm arke t
ra dio freq uency transmit tingeq uipment ")when
re trof itti ng two-w ayradios. Complywithth e
leg alrequ iremen tsforde tach able parts.
If yo ur vehicle hasinstalling fortw o-w ayradio
eq uipment ,use thepo we rsupp lyand antenn a
con nectors prov ided inthepr e-ins tallation .Be
sur eto obser vethemanuf acturer'ssupplement s
when installing.
Tw o-w ayradio transmi ssion output
The maxi mum transm ission outpu t(PEAK) atthe
base oftheant enn amus tno texc eed theva lues
in thefo llo wing table. Fr
eq uency bandandmaxim um transm ission
out put Fr
eq uency band Maximumtransm is‐
sion output
Sho rtwa ve
3 -54 MHz (1
00 W)
4 m freq uency band
74 -88 MHz (30
W)
2 m frequency band
14 4-17 4MHz (50
W)
tr unk edradio sys‐
te m/T etra
380 -460 MHz (1
0 W)
70 cm freq uency
band
420 -450 MHz (35
W)
Tw o-w ayradio
(2G/3G/ 4G) (1
0 W) Te
ch nica lda ta 55
1

Decl
arati on ofconf ormity (wirel ess
ve hicle component s)........................ ..... 27
EQ boost............ ................................... 25
Inf orma tion............ ........................ ........25
Ope ratin gsy stem
see On-bo ardcom puter
Oper ator' sMan ual
Ve hicle equipment ................................. 23
Oper ator's Manual (digital) ......................2 0
Op timiz edacceler ation........................... 185
Ac tivati ng ........... ................................. 185
Ov erhead controlpanel
Ov ervie w .................. ........................ ...... 12 P
Pa int code ................................................ 552
Pa intw ork(cleaning instructions) .........4 87
Pa nel heating
Se tting .................. ........................... ....1 18
Pa nic alar m............... ................................. 70
Ac tivati ng/d eactiv ating ........... ..............70 Pa
nor amic roof
Ad jus ting thero ller sunblin d.......... ........ 96
Opera tingth ero ller sunblin d.......... .......9 5
Pa nor amic sliding sunroof
see Sliding sunroof
Pa rk pos ition
Inser ting<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> .............200
Sel ecting automatical ly<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 200
Pa rking
see Elec tric par kingbr ak e
Pa rking aid
see Parking AssistPA RK TRONI C
Pa rking Assis tPA RK TRONI C<0011001100110011001100110011001100110011001100110011001100110011
00110011> 269
Ac tivati ng ........... ................................. 273
Ad jus ting warning tones <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 274
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>269
Pr ob lems <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>271
Sid eim pa ct protect ion ..................... ... 272
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 273
Sy stem limit ations ........................... ....2 69
Pa rking assis tance systems
see ActivePa rking Assist Pa
rking brak e
see Elec tric par kingbr ak e
Pa rking foran extended period .............. 217
Pa rking light s...........................................1 55
Pa rking options
see Parking service
Pa rking posit ion
Ex terior mir rors <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 168
St or ing theposition ofthefront -
passeng eroutside mirrorusi ng
re ve rsege ar .........................................1 69
Pa rking service ........................................ 417
No tes ................................................... 417
Sel ecting parking option s.................... 417
Sho wing apa rking option onthe
map ..................................................... 418
PA RK TRONI C
Ma lfunction <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> .............271
PA SSEN GERAIRBAGstatus displa y
see Automatic front pass engerfront
airb agshut off
Pa yload
Calculat ionexam ple ............................ 524 662
Inde x

Sliding
sunroof......... ................................. 89
Au tomatic functions .............................. 91
Closin g............................................ ...... 89
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 87
Opening .......................................... .......8 9
Opening withth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 87
Pr oblem .................................................9 2
Ra inclos ingfunc tion ...................... .......9 1
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 69
Ac ous ticlocking verificati onsignal ....... 70
Batt ery <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>71
Energy consumption............ ..................70
Fe atur es................................................ 69
Ke yring attachme nt<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....71
Mec hanical key ...................................... 71
Ov ervie w ............................................... 69
Pa nic alar m <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>70
Pr ob lem <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 73
Un loc kin gse tting .................................. 70
Sma rtKe yfunctions
Deactiv ating.......................................... 70
Smar tphone
see Andr oidAuto
see Apple CarPla y®
see Mercedes-Benz Link see
Telephon e
Sno wch ains .............................................514
Soc ket(1 2 V) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 146
Car gocomp artm ent ............................ 148
Fr ont cent erconsole ........................... 146
Soc ket(1 15 V) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 146
Re ar passe nger com partment .............1 46
Sof twareupdat e....... ...............................377
Inf ormation ..................................... .....3 77
Pe rfor ming ...........................................3 78
Sy stem updat es................................... 378
Sound PRE-S AFE®
Sound ................................. 49
Wheels andtires .............................. ....5 13
Sound see Burmes ter®
sur round soun dsy stem
see Sound settings
Sound settings ......................................... 471
Ad jus ting thebalance/f ader............ ....4 72
Ad jus ting treb le,mid -rang eand bass
se tting s............. ...................................471
Au tomatic volume adjustment ........ .....4 71
Calls upthesound menu ............... ...... 471 Inf
ormation .......................................... 471
Spar ewheel
see Colla psible sparewheel
see Emer gency sparewheel
Specia lseat beltretract or <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 58
Spe ciali st wo rkshop ..................................2 8
Speec hdialog system
see Voice Cont rolSy stem
Speed index(tir es) ..................................5 29
Spee dome ter
Dig ital ............. .....................................308
St andb ymode
Ac tivati ng/d eactiv ating ........... ............218
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>217
St anding lights ........................................ 155
St art-of fassi st
see Optimized acceleration
St art/S topbutt on
Pa rking theve hicle .............................. 208
St artin gth eve hicle ............................. 182
Swi tching onthepo we rsupp lyor
ignitio n..... ............................................ 181 668
Index