2020 MERCEDES-BENZ GLS SUV towing

Symbols
........................................................ 5 At
agl ance ....................................................6
Coc kpit ....... ..................... ..................... ..........6
Indica torand warning lam ps.........................1 0
Ov erhead controlpanel ................................ 12
Doo rcontr olpa nel and seatad jus tment .......14
Con trol setting sin there ar passe nger
com partment ................................................ 16
Emerg enciesand brea kdo wns ............ .......... 18 Digita
lOp erator' sMa nua l......................... 20
Callin gup theDigit alOper ator's Manual ...... 20 Gener
alno tes... .......................................... 22
Pr otect ing theen vironmen t... ....................... 22
Mer cedes- BenzGenuineP arts ......... .............. 23
Oper ator's Manual ........................... .............2 3
Ser vice andvehicle operation ......... .............. 24
Oper ating safety...........................................2 5
Decl arati on ofconf ormity forwireless
ve hicle component s... ................................... 27
Dia gno stics con nection ................................ 27 Qua
lified speci alistwo rkshop ....................... 28
Cor rect useof theve hicle ............................2 8
No tesfo rper sons withelectr onicmedi‐
cal aids..... ........................................ ............ 29
Pr oble mswithyo ur vehicle ............... ............ 29
Re por tingsaf etydef ects ...............................2 9
Limit edWarrant y.......................................... 30
QR cod efo rre scue card... ............... .............3 0
Dat ast or ag e... ..............................................3 0
Cop yright ...................................................... 34 Occup
antsafety.... .....................................35
Re stra int system .............................. .............3 5
Sea tbel ts<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 38
Airb ags<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 42
PR E-S AFE ®
sy stem ....................................... 49
Saf elytranspor tingchildr enintheve hi‐
cle ...... ........................................................... 51
No teson pets intheve hicle ............ .............6 8 Opening
andclosing .................................. 69
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 69
Door s<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 74
Ru nning boards <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>78Car
gocomp artm ent .....................................7 9
Sid ewi ndo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 85
Sli ding sunroof <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 89
Ro ller sun blinds ...........................................9 4
Anti-t heftpr otect ion .....................................9 7 Seats
andstowing .................................... 101
No teson thecor rect driver's seatpos i‐
tion <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011>.....101
Sea ts<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 101
St eer ing wheel ............................................ 119
Eas yentr yand exitfeatur e.........................1 21
Oper ating thememor yfunc tion .................. 122
Memor yfunct ioninthere ar passe nger
com partment .............................................. 123
St ow agear eas ............................................ 127
Cup holder.................................................. 143
Soc kets ........... ............................................ 146
Re frig er ator box...... .................................... 149
Wi reless chargin gof themobile phone
and connect ionwithth eex terior ant enna ...151
Ins talling/ remo ving thefloor mats .............1 53 2
Contents

Light
andvisibili ty................................... 155
Ext eriorlighti ng............ ..............................155
Int erior lighti ng........ ......................... .......... 160
Wi ndsh ield wipe rand windsh ield wa sher
sy stem .................. ...................................... 162
Mir rors <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 166
Oper ating thesun visor s... .......................... 169
Ar ea perm eable toradio wav eson the
winds hield.................................................. 170
Infr ared-r eflectiv ewindshi eldfunction ........ 170 Clim
atecontr ol......................................... 171
Ov ervie wof climat econt rolsy stems ..........1 71
Oper ating theclimat econ trol system ......... 172 Dr
ivin gand parking .................................. 181
Dr iving ............ ............................................181
DY NA MIC SELE CTswitc h... .........................1 96
Au tomatic transmiss ion.............................. 199
Tr ans fercase ........... ................................... 204
Fu nctio nof 4MA TIC<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ...........206
Re fuel ing...... .............................................. 206
Pa rking .......................................................2 08
Dr iving anddriving safetysy stems .............. 218 Tr
ailer hitch <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 296
Ve hicle towing instruct ions .............. ...........3 00 Ins
trument Displa yand on-b oard
co mp uter ...... ............................................301
Ins trument Displayove rview ............ ...........3 01
Ov ervie wof thebutt ons onthesteer ing
wheel ..........................................................3 02
Oper ating theon- boar dcom puter.............. 303
Ad jus ting thedesign oftheIns trument
Displa y... .......................................... ..........3 04
Sho wing display cont entontheins tru‐
ment cluster..... .............................. ............ 305
Ov ervie wof disp lays on themultifunc ‐
tion displa y... .................................... ..........3 06
Ad jus ting theins trument lighting ................3 07
Menus andsubmenus ................................ 307
Head-up Display... ....................................... 314 Vo
ice Contr olSy stem ............................... 31 6
No teson oper ating safety...........................3 16
Oper ation .......................................... ..........3 17
Using theVo ice Cont rolSy stem effec‐
tiv ely <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011>...319 Esse
ntialvo ice com mand s.........................3 20 MBUX
multimedia system ...................... 334
Ov ervie wand oper ation .............................. 334
Sy stem settings .......................................... 369
Na vig ation .................................................. 380
Te lephon e...................................................4 21
Online andInterne tfunctions ..................... 449
Media ......................................................... 456
Ra dio .......................................................... 463
Sound .........................................................4 71
MBUX rear table t........................................ 473 Maint
enanc eand care..... ........................ 476
ASS YSTPL US service interva ldispla y.........4 76
Engi necompar tment............ ...................... 477
Clean ingand care.......................................4 83 Br
eakdo wnassi stance ............................ 494
Flat tire....... ................................................ 494
Batt ery(v ehi cle) ....... .................................. 499
To w star tin gor towing away <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 505
Elec trica lfus es<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 510 Con
tents 3

1
QRcode foraccessi ngthere scue card →
30
2 mebutt onand SOS button →
442
3 Haza rdwa rning light s →
157
4 Chec kingand refilling operatingfluids →
554
St artin gassis tance →
503
5 Tow- star tin gand towing away →
506 6
Flat tire →
494
7 Fuelfiller flap withins truct ion labels fortir e
pr essu re,fuel type andQRcode foraccessi ng
th ere scue card →
206
8 Tow- star tin gand towing away →
506
9 TIREFIT kit →
495 At
aglanc e– Em erge ncie sand brea kdo wns 19

R
Vehicl eswith sliding sunroof:Clo sethe
sliding sunroof.
R Vehicl eswith memor yfuncti on:Movethe
fr ont passeng ersea tto amor efa vo rable
seat position .
R Vehicl eswith memor yfuncti oninthe
re ar passe nger comp artment :mo vethe
out errear seat sto amor efa vo rable seat
position .
R Vehicl eswith multico ntour seat :Incr ease
th eair pressur ein theseat sidebolsters of
th eseat backres t.
R PRE-S AFE®
Sound: prov ided that themulti‐
media system isswitc hedon,gener ates a
br iefnoi sesigna lto stimulat eth einnat epr o‐
te ctiv emec hanism ofaper son's hearing.
* NO
TEDama gecau sed byobject sin the
fo ot we llor behin dth eseat The
automatic adjustmentof theseat posi‐
tion mayre sult indamag eto theseat and/or
th eobjec t. #
Stow object sin asuit able place. Re
versing thePRE- SAFE®
sy stem mea sures If
an acc iden tdid notocc ur,th epr e-em ptive
measur esthat we retake nar ere ve rsed.
Yo uwill need toper form certainse ttings your‐
self . #
Ifth eseat beltpre-t ension ingisno tre duced,
mo vetheseat backres tbac kslightl y.
The locking mechanism releases. Fu
nction ofPRE-S AFE®
PL US (anticipat ory
occupant protection plus) PRE-
SAFE®
PL US can detect cer tain im pact s,
par ticular lyan imm inentrear impact ,and take
pr e-em ptive measur estoprotect theve hicle
occupants. Thesemeasur escanno tnecessar ily
pr eve ntan imm inentimpact.
PR E-S AFE ®
PL US can implem entthefo llo wing
measur esindepe ndently of eac hot her :
R Tight ening theseat belts onthedr iver's seat
and front passeng erseat.
R Increasin gbr ak epr essur ewhen theve hicle
is statio nary.This brak eapplication iscan‐ celed
automaticall ywhen theve hicle pulls
aw ay.
If an accident didnotoccur ,th epr e-em ptive
measur esthat we retake nar ere ve rsed.
Sy stem limit s
The system will notinitiat ean yaction inthefo l‐
lo wing situat ions:
R when backingup
or
R when theve hicle istowing atrailer andther e
is arisk ofare ar impact
The system will notinitiat ean ybr aking applica‐
tion inthefo llo wing situat ions:
R whils tdr ivin g
or
R when entering orexitin gapar kingspace
while using ActivePa rking Assist Fu
nction ofPRE-S AFE®
Im pulse Side If
an imminen tside impact isde tected, PRE-
SA FE®
Im pulse Side canpre-emp tively movethe 50
Occupant safety

The
driven speed isadjus tedwhen theve hicle is
le ve lwit hth etraf fic sig nat thelat est.In the
case ofsig ns indi cati ngentr yint oan urb anarea ,
th espeed isadap tedaccor dingtothespeed
per mitt edwithin theurban area. The speed limit
displa yin theIns trument Displayis alw aysupda ‐
te dwhen theve hicle isleve lwit hth etra ffic sign .
If th er eis no speed restriction onanunlimited
st re tchof road (e.g.on afree wa y), there com‐
mend edspe edisau tomatical lyadop tedas the
st or ed speed. Thesystem uses thespeed stor ed
on anunlimit edstre tchof road asthere com‐
mend edspe ed. Ifyo udo notalt er thestor ed
speed onanunlimit edstre tchof road, there c‐
omme ndedspeedis80 mph(1 30 km/h) .
If Ac tiveDis tance AssistDIS TRONI Cha sbe en
pu tint opa ssi ve mode bypressing theacceler a‐
to rpeda l,onl yspee dlimi tswhi charehigh er
th an these tspeed areadop ted.
Ac tiveSpe edLimi tAssi stisonl yan aid. The
dr iver isresponsible forke eping asaf edis tance
fr om theve hicle infront, forve hicle speed and
fo rbr aking ingood time. Themaximu mper missi ‐
ble spee dals odepe ndsonfact or ssu ch asthe
ro ad sur face and traf fic condi tions. Sy
stem limit s
Te mp orar yspeed restrictions (e.g.fo ra cer tain
tim eor due towe ather condition s)can notbe
pr oper lyde tected bythesy stem. Themaximum
per missible speedapplying toave hicle witha
tr ailer isno tde tected bythesy stem. Inthese sit‐
uations youmus tadj ustyo ur spee dyo urself . &
WARNIN GRisk ofacci dent dueto Active
Spe edLimi tAssi stadap tingth eve hicle's
speed
The speed adoptedby ActiveSpe edLimi t
Assi stma ybe toohigh orincor rect insome
indi vidualcase s,su ch as:
R Inthewe tor infog
R When towing atrailer #
Ensur eth at thedr iven speed complies
wit htraf fic re gulations. #
Adjus tth edr iving speed tosuit current
tr af fic and weather condition s. Fu
nction ofrout e-base dspee dadap tation %
The follo wing function iscoun try- dependen t
and onlyav ailable incon junction withth e
Dr iving Assi stanc ePa ckag e.
When ActiveDis tance AssistDIS TRONI Cis acti ‐
va ted, theve hicle speed willbeadjus tedaccor d‐
ing lyto thero uteev ent sahead. Dependingon
th edr ive pr og ram sele cted, theve hicle negoti‐
at es aro uteeve ntaheadin afue l-saving, com ‐
fo rtable ordynam icman ner.When thero ute
eve nthasbe en passe d,theve hicle acceler ates
ag ain tothestor ed speed. Thesetdis tance to
th eve hicle infront, vehicles detected aheadand
spe edrestrictions aheadar eta ke nint oacco unt.
Ro ute-based speedadap tatio ncan beconf ig‐
ur ed inthemultimedia system (/ page24 1).
The follo wing routeeve nts areta ke nint o
acco unt:
R Bend s
R T-int ersect ions,tr af fic cir cle sand tollst a‐
tio ns
R Turnsand exits 24
0
Driving and parking

R
The driver presses ast eer ing wheel buttonor
oper ates Touc hCon trol.
If Ac tiveSt eer ing Assis tde tects that asy stem
limit hasbeen reac hed, avisual warning is
issued andawa rning tone sou nds.
Ac tiveSt eer ing Assis tis onl yan aid. Thedriver is
re sponsible forth edis tance totheve hicle in
fr ont, forve hicle speed, forbr aking ingood time
and forst ay ing inlane. Beforech ang inglane s,
th edr iver mus tmak esur eth at theneighbor ing
lane isfree (glance over theshoulder).
Sy stem limit s
Ac tiveSt eer ing Assis thas alimit edsteer ing tor‐
qu efo rlat eral gui dance. Insome cases, the
st eer ing interve ntio nis no tsu fficien tto keep the
ve hicle inthelane ortodrive th ro ugh exits.
The system maybe impair edorma yno tfunc tion
in thefo llo wing instances:
R The reispoor visibilit y,e.g. due tosno w,rain,
fo g, hea vyspr ay,gr ea tly varying ambien t
light orstro ng sha dows onthero adw ay.
R Ther eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions. R
Insuf ficie ntroad illumin ation.
R The wind shieldisdir ty,fo gg ed up, damag ed
or coveredin thevicinit yof thecamer a,e.g.
by ast icke r.
R No, orseveral,unc lear lane markingsare
pr esen tfo rone lane, orthemar kings chang e
qu ickl y, e.g. inacon stru ction area orinter‐
secti ons.
R The lane mar kings arewo rnaw ay,dar kor
co veredup, e.g. bydirtor sno w.
R The distance totheve hicle infront istoo
small andthelane marking sth us can notbe
de tected.
R The road isnar row and windin g.
R Ther ear eobs tacle son thelane orprojec ting
out intoth elane, suchas objec tmar kers.
The system does notpr ov ide assis tance inthe
fo llo wing condition s:
R Ontigh tbends andwhen turnin g.
R When crossin gint ersect ions.
R Attraf fic cir cle sor tollst atio ns.
R When towing atrailer . R
When activel ych ang inglane without switch‐
ing onthetur nsignal indicat or.
R When thetir epr essur eis toolow.
Dep endingontheselect edvehicle settin gs,
Ac tiveSt eer ing Assis tma ybe una vailable.
Obser vethest atus displa yof ActiveSt eer ing
Assis tin themultifunc tiondispla y
(/ page24 7). &
WARNIN GRisk ofacci dent ifAc tive
St eer ing Assis tune xpect edlystops func‐
tionin g
If th esy stem limits ofActiveSt eer ing Assis t
ar ere ac hed ther eis no guar anteethat the
sy stem will remain activeor wil lke ep the
ve hicle inlane. #
Alw ayske ep your han dson thesteer ing
wheel andobser vethetra ffic car efull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic condi tions. Dr
iving and parking 24
3

HOLD
functio n HOLD
functio n
The HOLD function holdsth eve hicle atast and‐
st ill wit hout requ iring youto depr essthebr ak e
pedal, e.g.while waitin gin traf fic.
The HOLD functionisonly anaid. The responsi‐
bility forth eve hicle safely standi ngstill remains
wit hth edr iver .
Sy stem limit s
The HOL Dfun ction isonl yint end edtoprov ide
assis tance when drivi ng and isno ta su fficien t
mean sof saf eguar dingtheve hicle agains tro lling
aw ay when statio nary.
R The incline mustno tbe great erthan 30%. Ac
tiv atin g/deac tivatin gthe HOL Dfunc tion &
WARNIN GRisk ofan acci dent dueto the
HOLD functio nbei ng activ ated whe nyo u
lea vetheve hicle
If yo ulea vetheve hicle while onlyth eHOLD
func tion isbraking theve hicle, theve hicle
can rollaw ay inthefo llo wing situat ions:
R Ifth er eis amalfunct ioninthesy stem or
in thepo we rsupp ly.
R Ifth eHOLD function isdeactiv ated by
depr essing theacceler ator pedal orbrak e
pedal, e.g.byave hicle occupant. #
Alw aysdeactiv ateth eHOLD function
and secur eth eve hicle agains tro lling
aw ay bef orelea ving theve hicle. *
NO
TEDama gefrom automatic braking If
one ofthefo llo wing functionsis switc hed
on, theve hicle brak es aut omatically incer‐
ta in situat ions:
R ActiveBr ak eAssi st
R ActiveDis tance AssistDIS TRONI C
R HOLD functio n
R ActivePa rking Assist
To avo iddamag eto theve hicle, deactiv ate
th ese systems inthefo llo wing orsimilar sit‐
uation s: #
Dur ing towing #
Inacar wash Re
quirement s:
R The vehicle isstatio nary.
R The driver's door isclosed ortheseat belton
th edr iver's side isfastened.
R The engine isrunning orhasbe en automati‐
cally switc hedoffby theEC Ostar t/ stop
funct ion. Dr
iving andparking 24
9

The
system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e
highl yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
th esun orreflect ions.
R Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth er ear eno lane marking s,or several
unc lear lane markingsarepr esen tfo rone
lane, e.g.around roadw orks .
R Ifth elane marking sar ewo rn,dar kor cov‐
er ed.
R Ifth edis tance totheve hicle infront istoo
shor tand thus thelane marking scann otbe
de tected.
R Ifth elane marking sch ang equ ickl y, e.g.
lanes branc hof f,cr oss one another or
mer ge.
R Ifth ero adw ayisvery nar row and wind ing. Ve
hicl eswithout Drivin gAss istanc ePa ck‐
ag eor Drivi ng Ass istan cePlus Packag e:
Ac tiveLa ne Keeping Assistuses radar sensor s
to monit orseveralar eas around theve hicle. If
th era dar sensor sin there ar bum peraredir tyor
co veredwit hsno w,thesy stem maybe impair ed
or ma yno tfunc tion.If an obs tacle inthelane in
whic hyo uar edr ivin ghas been detected, no
la ne-cor recting brak eap plica tion occu rs.
Ac tiv atin g/deac tivatin gAc tiv eLan eKe eping
Assis t
Multi media system:
4 © 5
Set ting s5
Quick Access
5 Act ive Lane Keeping Assist #
Activateor deacti vate thefunc tion.
Se tting Activ eLan eKe eping Assist
Multi media system:
4 © 5
Set ting s5
Assist ance
5 Act ive Lane Keeping Assist
Se tting thesensit ivity
% The availabilit yof this func tion isdepen dent
on thecount ry. #
Select Stand ard,Sensi tiveorOff.
Ac tiv atin g/deac tivatin gthe hapticwarning #
Selec tWarnin g.
Ac tivateor deacti vate thefunc tion. Tr
aile rhitc h No
teson towing atrail er Mer
cede s‑AMG vehicl es:besur eto obser ve
th eno tesin theSupplement .Ot her wise, you
ma yfa ilto recogni zedangers. &
WARNIN GDang erofacci dent dueto
uns uitable ballcouplin g
If yo uins tallan unsuit ableballcouplin g,
ove rloading ofthetrailer hitchand rear axle
will bethere sult. Thisispar ticular lythecase
if th eball coupling isrelativ elylong orang led
dif fere ntl y.
The handling charact eristic sma ybe hea vily
im pair edand thetra iler can become
de tach ed. Ther eis arisk offata linj ury. 296
Driving andparking