2021 MERCEDES-BENZ GLS SUV trailer

R
Off-road leve l+3: thre eindicat orlam ps
2 light upcon tinuousl ywhen theve hicle
has finis hed rising.
Yo ur sele ction issave d. The off-r oad leve lse t
re mains stor ed eve naf te rth eignition hasbeen
switc hedoff.
The vehicle islowe redag ain inthefo llo wing sit‐
uation s:
R Off-ro ad leve l+3: when drivin gfa ster than
12 mp h(20 km/h) orwhen there ar foglam p
is switc hedon.
The vehicle islowe redto off-r oad leve l+2.
R Off-ro ad leve l+2:
- When drivin gfa ster than 50 mph
(80 km/ h).
- When driving brief lybe tween 40mph
(65 km/ h)and 50mph(8 0km/h).
The vehicle islowe redto off-r oad leve l+1 .
R Off-ro ad leve l+1:
- When drivin gfa ster than 71 mp h
(1 15 km/h) . -
Whe ndr ivi ng briefly be tween 62mph
(1 00 km/ h)and 71mp h(115 km/h) .
The vehicle islowe redto thenor mal leve l.
R Aftersele cting adif fere nt drive pr ogr am
us ing theDY NA MIC SELE CTswitc h.
The vehicle isadjus tedto theheight ofthe
act ive dr ive pr ogram.
Lo we ring theve hicl e(v ehic leswith Off-road
pac kage) #
Pull rock er switc h1.
R Off-road leve l+3: theve hicle islowe red
to off-r oad leve l+2. Twoindicat orlam ps
2 light upcont inuously whentheve hicle
has finis hed lowe ring.
R Off-roa dleve l+2: theve hicle islowe red
to off-r oad leve l+1 .One indic ator lam p
2 light sup con tinuousl ywhen theve hi‐
cle has finis hed lowe ring.
R Off-roa dleve l+1: theve hicle islowe red
to thenor mal leve l.No indic ator lam p2
light sup when theve hicle hasfinis hed
lo we ring. Yo
ur sele ction issave d. The off-r oad leve lse t
re mains stor ed eve naf te rth eignition hasbeen
switc hedoff.
Oper ation withatrailer orbicy clerack
If th eelectr icalconnect iontothetra iler orbicy‐
cle rack ises tablished correctl y:
R Uptoappr oximat ely12 mp h(20 km/h): off-
ro ad leve ls +1 ,+2 and +3can beselec ted
re ga rdless ofthedr ive pr ogr am.
R Uptoappr oximat ely19 mp h(30 km/h): off-
ro ad leve ls +1 and +2can beselec ted
re ga rdless ofthedr ive pr ogr am.
R From appr oximat ely19 mp h(3 0km/h) :th e
ve hicle issetto thenor mal leve lre ga rdless
of thedr ive pr og ram.
Se tting theent ering/e xiting leve l(AIRMA TIC)
Re quirement s:
R The engin eis running .
R The vehicle ismo ving atspeeds lessthan
20 mph(3 0km/h) . 23
4
Driving andparking

Multimedia
system:
4 © 5
Set ting s
5 Sch nellzugrif f(Quic kaccess) #
Select LowerWhenGettingIn On .
The vehicle islowe redto low leve l-2 tofacil i‐
ta te ent ering and exitin g.
% The availabilit yof this func tion depen dson
th eve hicle equipment.
% Further information onAIRMA TIC
(/ page229).
Lo we ring and raising there ar oftheve hicl e &
WARNIN GRisk ofentr apment from vehi‐
cle lowe ring
Whe nlowe ring theve hicle, people could
become trapped ifth eir limbs arebe tween
th eve hicle body andthetir es orunder neath
th eve hicle. #
Mak esur eno one isunder neathth e
ve hicle orintheimmediat evicinit yof
th ewheel arch es when theve hicle is
being lowe red. Re
quirement s:
R Allvehicle doorsar eclosed
R Ther eis no trailer coupled
R Ther eis no bicy clerack installed
R The batteryis suf ficie ntly charge d; ifnec es‐
sar y,star tth eengine
Lo we ring there ar oftheve hicl e #
Apply theelectr icpar king brak e. #
Shif tth etra nsmiss iontoposition 005D
(/ page18 6). #
Pullsw itch 1 intheright-h andcargocom‐
par tmen ttr im brief ly.
Indicat orlam p2 flashes untilth eve hicle
has been lowe red.
The vehicle islowe redat there ar axle by
appr ox.1. 5 in (40 mm) .When theve hicle has
been lowe red, indicat orlam p2 remains lit.
When there ar oftheve hicle hasbeen com‐
ple tely lowe red, indicat orlam p2 remains
lit.
Lo we ring isint erru pte din thefo llo wing situa‐
tion s:
R Ave hicle doorisopened
R Switc h1 ispulle dag ain
R The vehicle isbeing driven faster than
1. 2 mp h(2 km/h).
% The vehicle isaut omaticall yse tto theleve l
of themos tre cently select eddrive pr ogr am
if yo udr ive at spee dsgreat erthan 1.2 mp h
(2 km/ h). Dr
iving andparking235

Yo
ur sele ction issave d. The off-r oad leve lse t
re mains stor ed eve naf te rth eignition hasbeen
switc hedoff.
The vehicle islowe redag ain inthefo llo wing sit‐
uation s:
R When drivin gfa ster than 50 mph(80 km/h).
R When driving brief lybe tween 40mph
(65 km/ h)and 50mph(80 km/h).
R Aftersele cting adif fere nt drive pr ogr am
us ing theDY NA MIC SELE CTswitc h.
The vehicle isadjus tedto theheight ofthe
act ive dr ive pr og ram.
Lo we ring theve hicl e(v ehic leswithout Off-
ro ad pac kage) #
Pull rock er switc h1.
The vehicle isadjus tedto theheight ofthe
act ive dr ive pr ogram.
Oper ation withatrailer orbicy clerack If
th eelectr icalconnect iontothetra iler orbicy‐
cle rack ises tablished correctly:
R Uptoappr oximat ely18 .7 mp h(3 0km/h) :
th eof f-r oad leve l+1 can beselec tedre ga rd‐
less ofthedr ive pr og ram.
R From appr oximat ely18 .7 mp h(3 0km/h) :
th eve hicle issetto thenor mal leve lre ga rd‐
less ofthedr ive pr og ram. Ra
ising theve hicl e(v ehic leswith Off-road
pac kage) #
Push rock er switc h1 forw ards.
R Off-ro ad leve l+1: one indic ator lam p2
light sup con tinuousl ywhen theve hicle
has finis hed rising.
R Off-road leve l+2: twoindic ator lam ps2
light upcon tinuousl ywhen theve hicle
has finis hed rising. 24
2
Driving and parking

R
Off-road leve l+3: thre eindicat orlam ps
2 light upcon tinuousl ywhen theve hicle
has finis hed rising.
Yo ur sele ction issave d. The off-r oad leve lse t
re mains stor ed eve naf te rth eignition hasbeen
switc hedoff.
The vehicle islowe redag ain inthefo llo wing sit‐
uation s:
R Off-ro ad leve l+3: when drivin gfa ster than
12 mp h(20 km/h).
The vehicle islowe redto off-r oad leve l+2.
R Off-ro ad leve l+2:
- When drivin gfa ster than 50 mph
(80 km/ h).
- When driving brief lybe tween 40mph
(65 km/ h)and 50mph(8 0km/h).
The vehicle islowe redto off-r oad leve l+1 .
R Off-ro ad leve l+1:
- When drivin gfa ster than 71 mp h
(1 15 km/h) . -
Whe ndr ivi ng briefly be tween 62mph
(1 00 km/ h)and 71mp h(115 km/h) .
The vehicle islowe redto thenor mal leve l.
R Aftersele cting adif fere nt drive pr ogr am
us ing theDY NA MIC SELE CTswitc h.
The vehicle isadjus tedto theheight ofthe
act ive dr ive pr ogram.
Oper ation withatrailer orbicy clerack
If th eelectr icalconnect iontothetra iler orbicy‐
cle rack ises tablished correctl y:
R Uptoappr oximat ely12 mp h(20 km/h): off-
ro ad leve ls +1 ,+2 and +3can beselec ted
re ga rdless ofthedr ive pr ogr am.
R Uptoappr oximat ely19 mp h(30 km/h): off-
ro ad leve ls +1 and +2can beselec ted
re ga rdless ofthedr ive pr og ram.
R From appr oximat ely19 mp h(30 km/h): the
ve hicle issetto thenor mal leve lre ga rdless
of thedr ive pr og ram. Lo
we ring theve hicl e(v ehic leswith Off-road
pac kage) #
Pull rock er switc h1.
R Off-road leve l+3: theve hicle islowe red
to off-r oad leve l+2. Twoindicat orlam ps
2 light upcont inuously whentheve hicle
has finis hed lowe ring.
R Off-roa dleve l+2: theve hicle islowe red
to off-r oad leve l+1 .One indic ator lam p
2 light sup con tinuousl ywhen theve hi‐
cle has finis hed lowe ring.
R Off-roa dleve l+1: theve hicle islowe red
to thenor mal leve l.No indic ator lam p2
light sup when theve hicle hasfinis hed
lo we ring.
Yo ur sele ction issave d. The off-r oad leve lse t
re mains stor ed eve naf te rth eignition hasbeen
switc hedoff.
Se tting Off-road Assis t
Re quirement s:
R theve hicle isstatio nary
R theve hicle issetto off-r oad leve l1 or 2 Dr
ivin gand parking24
3

R
theOf f-road orOff-road Plus (onlyve hicles
wit hOf f-road package )dr ive pr ogr am has
been select ed
R theignition isswitc hedon
R alldoor sand thehood areclosed
R thetransmission isno teng aged inposition
005D
R ther eis no trailer coupled
R theve hicle isoutdoor s
R thede tected late ra linc linat ionoftheve hicle
mus tno texc eed appr ox.15 °
R thesy stem iswit hin itsoper ating temp era‐
tur e
R theon- boar dvo ltag eis suf ficie ntly high
Mu ltimed iasystem:
4 © 5
Set ting s5
Assist ance
5 Offr oad Assist ant
Re covery mode
Re covery mode assiststh edr iver when pulling
aw ay on rough terrain, suchas san dor snow . #
Select Recove ryMod e. #
Select Start .
Re covery mode isactiv ated. #
Select Stoptostop reco very mode.
Re covery mode isau tomatical lydeactiv ated in
th efo llo wing situat ions:
R youar eact uall ytrave ling faster than 9mp h
(1 5 km/ h)
R afte ra ru nning timeof30 seco nds
R itis de tected that an obj ect has hitthe
und erbody oftheve hicle hard
R notall conditions areme t
% Further information onreco very mode
(/ page239) .
Indiv idual wheelcon trol
Individ ualwhee lcontr olenabl estheve hicle leve l
to be setsepar ately foreac hwhee l. #
Select IndividualWheel Ctrl.. #
Setth eve hicle leve lfo rth edesir edwheel.
% Youcan also usetheto uc hdispl aytosetth e
le ve lfo rtw oor mor ewhee lsat thesame
time. #
Select Resettosetall wheels tothedef ault
se tting.
Individual wheelcontrol isaut omatic allydeacti‐
va tedin thefo llo wing situat ions:
R youar etra veling faster than 9mp h
(1 5 km/ h)
R itis de tected that an obj ect has hitthe
und erbody oftheve hicle hard
R notall conditions areme t
% Further information onindividua lwheel con‐
tr ol (/ page24 0). Pa
rking Assis tPA RK TRONI C Fu
nction ofParking Assis tPA RK TRONI C
Pa rking AssistPA RK TRONI Cis an elec tron ic
par kingassi stanc esy stem withultr asound. It
monit orsth ear ea around your vehicle using mul‐
tiple sensor son thefront bum perand onthe
re ar bum per.Pa rking AssistPA RK TRONI Csho ws
yo uth edis tance betwee nyo ur vehicle anda
de tected obs tacle visually and audibly . 24
4
Driving and parking

R
Orang esegments: obstacle sat adi st anc e
be tween appr ox.1. 0 ft (0.3 m)and 2.0ft
(0.6 m)
R Redse gme nts: obstacle sat ave ry shor t
dis tance ofapprox .1. 0 ft (0.3 m)orless
Displa yof Parking Assis tPA RK TRONI Cin the
Head-u pDi spla y Op
tiona lly,obs tacle sde tected byParking Assist
PA RK TRONI Cfrom adis tance ofapprox imat ely
3. 3ft (1.0 m) infront 2and 2.0ft(0.6 m)on
th esides 3can also bedispla yedin theHead-
up Displa y. Sy
stem limit s
Pa rking AssistPA RK TRONI Cdoes notne cessa‐
ri ly take intoacc ount thefo llo wing obstacle s:
R Obs tacle sbel ow thede tection rang e, e.g .
pe rsons, animals orobject s.
R Obs tacle sab oveth ede tection rang e, e.g .
ove rhang ingloads, overhang sor loadin g
ra mp sof truc ks.
The sensor smus tbe free ofdir t,ice and slush.
Ot her wise, they ma yno tfunction correctly .
Cl ea nth esensor sre gular ly,especially afte rdr iv‐
ing off-r oad ,ta king careno tto scr atc hor dam‐
ag eth em.
Ve hicl eswith traile rhitc h:Parking Assist
PA RK TRONI Cis deac tiva tedfo rth ere ar zone
when youes tablish anelect rical connecti on
be tween your vehicle andatrailer . Pr
oblems withParking Assis tPA RK TRONI C Ex
am ple: vehicles withsur round viewcam era
When rear segm ents1 orall-r oundsegm ents
2 light upredand theé symbol appearsin
th emultifunc tiondispla y,Pa rking Assist
PA RK TRONI Cma yha ve been deactiv ated due to
signal interfere nce. Startth eve hicle again and
ch eckif Pa rking AssistPA RK TRONI Cis wo rking
at adif fere nt locati on. 24
6
Driving and parking

Ad
jus tingthe warning tones ofParking
Assis tPA RK TRONI C
Mu ltimed iasystem:
4 © 5
Set ting s5
Assist ance
5 Camera &Parkin g
Ad jus tingthe volum eof thewa rning tones #
Select Warning ToneVolume. #
Seta va lue.
Ad jus tingthe pitchof the warning tones #
Select Warning TonePitch. #
Seta va lue.
Specif yingthest ar ting pointfo rthe warning
to nes
Yo ucan spec ifywhe ther thePa rking Assist
PA RK TRONI Cwa rning tones should comm ence
wh en theve hicle isfur ther aw ay from anobs ta‐
cle . #
Sele ctWa rnEarl yAll Arou nd. #
Activateor deacti vate thefunc tion. Ac
tiv atin g/deac tivatin gaudi ofa deo ut
Yo ucan spec ifywhe ther thevo lume ofamedia
sour ceinthemultimedia system isto be
re duced whenParking AssistPA RK TRONI C
soun dsawa rning tone. #
Select Aud ioFad eou tDuri ngWa rning Tones. #
Activateor deacti vate thefunc tion. Re
versing camer a Fu
nction ofthere ar vie wcamer a
When youen gage reve rsege ar,th eimag efrom
th ere ar vie wcam erais sho wninthemedia dis‐
pla y.Dyna micguide lines showthepat hth e
ve hicle willtake wit hth ecur rent steer ing ang le.
This helps youto orient yourself and toavoid
obs tacle swhe nba cking up.
The rear vie wcam erais on lyan aid. Itis no ta
subs titutefo ryo ur att entio nto thesur round ings.
The responsibili tyforsaf emaneu vering and
pa rking remains withyo u. Mak esur eth at ther e
ar eno per sons, animals orobjec tsetc., inthe
maneu vering area while ma neu vering and park‐
ing. %
Youcan open theco verof there ar vie wcam ‐
er aman ually(/ page25 5).
The guide linesin themedia displaysho wthe
dis tances toyour vehicle. Thedistances dis‐
pl aye donl yapply toroad leve l.
Depe ndingon theve hicle equipment, youcan
sele ctfrom thefo llo wing views:
R Normalvie w
R Wide-ang levie w
R Trailer view
The area behin dth eve hicle isdispla yedas a
mir rorimag e,as intheinside rear vie wmir ror.
Ve hicl eswithout Activ ePa rking Assis t
The follo wing camer avie ws areav ailable inthe
multime diasystem: Dr
iving andparking 24
9

Nor
mal view
1 Yello wguide line,vehicle width(dr iven sur‐
fa ce) dep endi ngon thecur rent steer ing
ang le(dynamic)
2 Yello wguide lineatadis tance ofapprox ‐
imat ely3. 3ft (1.0 m) from there ar area
3 Yello wlanes markingth ecour sethetir es
will take wit hth ecur rent steer ing ang le
(dynamic)
4 Bum per
5 Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from there ar area Wi
de-ang levie w Tr
ailer view(vehic leswithatrailer hitch)
1 Yello wguide line,locat ingaid 2
Redguide lineatadis tance ofapprox imat ely
1. 0 in (0.3 m)from theball head ofthe
tr ai le rhi tc h
3 Ballhe ad ofthetrailer hitch
Ve hicl eswith Activ ePa rking Assis t
The follo wing camera views areav ailable inthe
multime diasystem: Nor
mal view
1 Yello wlanes markingth ecour sethetir es
will take wit hth ecur rent steer ing ang le
(dynamic) 250
Driving andparking