2021 MERCEDES-BENZ GT 4-DOOR COUPE 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,
wit hth eSmar tKey insid 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 thestor ag ecom partmen tof thecen‐
te rconsole, theSmar tKey functions are
au tomatical lyact ivat ed (/ page14 0). 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 81). If
yo uopen theta ilg atefrom outs ide,itis aut o‐
matic allyunloc ked. Pr
oblems withKEYLE SS-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.
R The Smar tKey batt eryis we ak ordisc harged.
R The Smar tKey isfaulty . #
Activateth eke yfun ction s(/ page68). #
Chec kth ebatt eryusing theindicat orlam p
(/ page67 ). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page69). #
Use theemer gency keyto loc kor unloc k
(/ page73 ). #
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. 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 .The Smar tKey mus tbe inthe
vicinity oftheve hicle.
Ve hicl eswith HANDS -FREEACCESS #
Mak eakic kin gmo vement withyo ur foot
belo wthebum per(/ page77 ).
Au tomatic reve rsing funct ionforthe tailga te
The tailg ateis eq uipped withaut omat icbloc kage
de tection with are ve rsing func tion.If an obs ta‐
cle stops theta ilg atedur ing theaut omatic clos‐
ing procedur e,itwill automatic allyopen again.
Au tomatic blockage detection with there ve rsing
func tion isonl yan aid and isno ta subs titutefo r
yo ur att entiven ess . #
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
R Towa rdsth eend oftheclosing procedur e 76
Opening andclosing

%
Con venie nce closing also func tions with
KEYLESS- GO(/ page71 ). Pr
oblems withth eside windo ws &
WARNIN GRisk ofbeco ming trap ped or
fa tal lyinju re difre ve rsing protect ion is
no tactiv ated
If yo uclo seaside windowagain imm ediat ely
af te rit has been blocked, theside windo w
will close withincr eased ormaximum forc e.
The reve rsing func tion isthen notactiv eand
body partsma ybecome trapped. #
Mak esur eth at no par tsof thebody are
in theclosing area. #
Tostop theclosing process, release the
butt onorpress thebutt onagain to
re open theside windo w. A
sid ewind owcann otbe closed andyoucan‐
no tsee thecaus e. #
Chec kto see whether anyobjec tsarein the
windo wguide. #
Adjus tth eside windo ws.
Ad jus tingthe side windo ws
If aside windo wisobs truct eddur ing closing and
re opens again immediat ely: #
Immediat elyaf te rth is, pull and hold thecor‐
re sponding buttonagain until theside win‐
do whas closed andhold thebutt onforat
lea stone moresecond (re-adjus tment).
The side windo wwill beclosed without the
aut omat icreve rsing func tion.
If th eside windo wisobs truct edagain and
re opens again immediat ely: #
Immediat elyaf te rth is, pull and hold thecor‐
re sponding buttonagain until theside win‐
do whas closed andhold thebutt onforat
lea stone moresecond (follo w-up adjust‐
men t).
The side windowwill beclos edwithout the
aut omat icreve rsing func tion. Th
eside windo wscann otbe opened or
closed usingthecon venience opening fea‐
tur e.
Po ssible cause:
R The Smar tKey batt eryis we ak ordisc harged. #
Chec kth ebatt eryusing theindicat orlam p
(/ page67 ). #
Replace theSmar tKey batt ery, ifnec essar y
(/ page69). Slidin
gsunr oof Opening
andclosing theslidi ngsunr oof %
The term "slidin gsun roof" refers to thepan‐
or amic roof. &
WARNIN GRisk ofbeco ming trap ped
whe nth esliding sunroofisbeing opened
and closed
Body partsma ybecome trapped inthera ng e
of mo vement. 82
Opening andclosing

ATA
(anti-thef tala rm system) Fu
nction oftheATA system
If th eATA system isarmed, avisual andaudible
alar mistrigg ered inthefo llo wing situat ions:
R When adoor isopen ed
R When theta ilg ateis open ed
R When thehood isopened
R When theint erior motion sensor istrigg ered
(/ page88)
R When theto w- aw ay alar mistrigg ered
(/ page88)
The ATA system isarmed automaticall yaf te r
appr oximat elyte nseco ndsinthefo llo wing situa‐
tion s:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO Indicat
orlam p1 flashes whentheAT Asy stem
is armed.
The ATAsy stem isdeactiv ated aut omaticall yin
th efo llo wing situat ions:
R Afterunloc kingtheve hicle withth eSmar t‐
Ke y
R Afterunloc kingtheve hicle using KEYLES S-
GO R
Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestor ag ecom partmen t
(/ page14 0)
% 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 260) .
% Inthecase ofsevere batt erydisc harging,
th eanti- theftalar msystem isaut omatic ally
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 (/page14 0)
Dea ctivat ingth eala rm using KEYLESS-GO #
Grasp theoutside doorhandle withth e
Smar tKey outside theve hicle. Opening
andclosing 87

Kic
kdow n............... ..................................1 56
Using ............................ .......................156
Knee airbag ................................................ 44 L
Labelin g(tir es)
see Tire labeling
Lam p
see Interior light ing
Lam ps(Ins trum ent Displa y)
see Warning/ indic ator lam ps
Lane detection (automatic )
se eAc tiveLa ne Keeping Assist
Lane Keeping Assist
see ActiveLa ne Keeping Assist
LA TC H-type (ISOFI X)child seat secur‐
ing system
In stallin g................................................ 58
Light switch
Ov ervie w .......................................... ....1 18
Light ing
see Inte rior lighting
see Lights Lights
........................................................ 118
Ad aptiveHig hbeam Assis t.............. .....1 21
Au tomatic driving lights..... .................. 119
Comb inationswit ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 119
Cor nering light <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ...........121
Haza rdwa rning light s.................... ...... 120
High beam............ ................................119
High -beamflasher ................................ 119
Light switch..... .............................. ......1 18
Lo w-beam headlam ps.................... ...... 118
Pa rking light s.................................. .....1 18
Re ar foglam p................................. ...... 118
Re sponsibili tyforlig hting systems .......1 18
Se tting theex terior lighting switch-
of fdela ytime ................................. ..... 122
St andi nglight s................................ .....1 18
Swi tching thesur round lighting
on /of f............................................ .....1 23
Tu rn signal light.................................... 119
Limit edWa rranty
Ve hicle ............................................. ...... 31
Limit er
Maxim umdesign speed .................. .....1 50
Limi ting theopenin gang le(tailg ate) .......7 8 Liv
eTr af fic Inf orma tion
Swit ching thetra ffic inf ormatio ndis‐
pla yon .................................................2 47
Load index(tir es) .................................... 320
Load -bearing capacit y(tir es) ................. 320
Loading ..................................................... 107
Bag hook<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ....108
Car gotie-do wn rings <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ...107
Def initio ns ............. ..............................322
No tes ................................................... 102
Ro oflugg agera ck <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 110
Load ing
see EASY-PAC Kloa d-secur ingkit
Loadin gguidel ines.................................. 102
Load inginforma tion table ...................... 312
Load s
Sec uring .............................................. 102
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 .............................. 74 430
Index

Tu
rn signal light
Ac tivati ng/d eactiv ating ........... .............119
Tw o-w ayradio s
Fr eq uencies ......... ................................ 336
No teson installation ...........................3 35
Tr ans miss ionoutput (max imum ).........3 36 U
Un loc king setting ...................................... 68
Up dat es
Im por tant system updat es.................. 239
USB port
Re ar passe nger com partment .............. 113 V
Ve hicl e...... ................................................ 140
Ac tivati ng/d eactiv ating standb y
mode .... ...............................................1 66
Col lision detection (parking) .......... ...... 165
Cor rect use <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> ..............29
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>333
Ma intena nce <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ................24
Medical aids.................................... ...... 29
Pa rking foran extende dpe riod ............ 165
Pr oblem notification ........................ ...... 30
QR code rescue card..................... ........ 31
Qua lified speci alistwo rkshop ................2 9
Ra ising ................................................ 329
Ro cking free ........................................ 154
St andb ymode function .................. .....1 65
St artin g(eme rgency operation
mode) .................................................. 140
St artin g(Em otion Start) .................. .....1 39
St artin g(R emo teOnline) ............... .......1 41
St artin g(sta rt/s topbutt on) ............ .....1 39
Switc hingoff(s ta rt/s topbutt on) .... .... 159
To wing .................................................2 25
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) ......... 81Ve
hicl edata
Displ aying (DYN AMI CSE LECT) ............ 152
Maximum speeds................................ 347
Ro ofload ............................................. 347
Tu rning circle .......................................3 46
Ve hicle height ...................................... 346
Ve hicle length...................................... 346
Ve hicle width....................................... 346
Wheelbase ...........................................3 46
Ve hicl edata stor ag e
Ev ent data recor der s<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> .35
MBUX multimedia system/Mer cedes
me connect ...........................................3 5
Ve hicl edimens ions...... ...........................346
Ve hicl eele ctroni cs
No tes .................................................. 335
Tw o-w ayradios .................................... 335
Ve hicl eiden tificati onnumber
see VIN
Ve hicl eiden tificati onplat e...... ..............337
Pa int code ...........................................3 37
VIN ...................................................... 337
Ve hicl eint erior
Coo ling orhea ting (Remo teOnline) ..... 140 44
2
Inde x