2021 MERCEDES-BENZ GT 4-DOOR COUPE cruise control

If
AT TENTION ASSISTis unable tocal cul ateth e
att ent ion leve land cannotissue awa rning, the
Sys tem Suspend edmes sage appear s.
If awa rning isgiv en intheIns trument Display,
th emultimedia system offers to sear chfora re st
ar ea. Youcan selectare st area and star tna vig a‐
tio nto this rest area. This function can beact iva‐
te dand deactiv ated inthemultimedia system.
If AT TENTION ASSISTis deactiv ated, theÛ
symbol appearsin theassis tance grap hicin the
Ins trument Displaywhen theengine isrunning .
AT TENTION ASSISTis activ ated aut omaticall y
when theengine isre-sta rted. The lastselect ed
sensit ivityleve lre mains stor ed.
Sy stem limit s
AT TENTION ASSISTis activ ein the37 mph
(60 km/ h)to 124mp h(2 00 km/h) speedra ng e.
Pa rticular lyin thefo llo wing situat ions,AT TEN‐
TION ASSISTonl yfunct ionsinare strict ed man‐
ner and warnings maybe dela yedor notocc ur:
R Ifyo uha ve been driving forless than appr ox‐
imat ely30 min utes. R
Ifth ero ad con dition ispoor (unevenro ad
sur face orpotholes).
R Ifth er eis ast ro ng side wind.
R Ifyo uadop ta spor tydrivin gst yle (high cor‐
ner ing speeds orhigh ratesof acceler ation).
R Ifth eSt eer ing Assis tfunc tion ofActiveDis ‐
ta nce AssistDIS TRONI Cis acti ve.
R Ifth etime hasbeen setincor rectly .
R Ifyo uch ang elane sand vary your spee dfre‐
qu ent lyIn activ edr iving situations.
The ATTENTION ASSISTdr ow siness oraler tness
assessment isrese tand restar tedwhen continu‐
ing thejour neyin thefo llo wing situat ions:
R Ifyo uswit choffth eengine.
R Ifyo uunf astenyo ur seat beltandopen the
dr iver's door (e.g.tochang edr iver sor take a
br eak). Se
tting ATTENTI ONASSIST
Multimedia system:
4 © 5
Set ting s5
Assist ance
5 Atten tion Assist
Se tting options #
Select Standard, Sensitive orOff.
Sugg esting are st area #
Select SuggestRes tArea. #
Activateor deacti vate thefunc tion.
If AT TENTION ASSISTde tects fatig ue or
incr easing lack ofatt ention ,it sugg ests a
re st area inthevicin ity. #
Select thesugg estedre st area.
Yo uar eguided totheselect edrest area. Spe
edcont rolcr uise contr ol Fu
nction ofcruise contr ol
Cr uise controlre gulat esthespeed totheva lue
selec tedby thedr iver .
If yo uacc elerat eto ove rtak e, forex am ple, the
st or ed speed isno tdele ted. Ifyo ure mo veyour Dr
ivin gand parking 17
5

fo
ot from theacceler ator pedal afte rove rtakin g,
cr uise control will resume speed regulation back
to thestor ed speed.
Yo ucan stor ean yspeed above15 mp h
(20 km/ h)up tothemaximum designspeed.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 166).
Di spla yson themu ltifunct iondisp lay
R h (gra y): cruise contro lis selec tedbut
no tye tacti vated.
R h (green): cruise control isactiv e.
A stor ed speed appear salong withth eh dis‐
pla y.
% The segment sbe tween thestor ed speed and
th eend ofthesegment displaylight upin
th espeedome ter.
Sy stem limit s
Cr uise control ma ybe unable tomaint ainthe
st or ed speed onuphill gradients. Thestor ed
speed isresumed whenthegr adient evensout. Ch
ang eint oalowe rge ar ingood timeon long
and steep downhill gradients. Take par ticular
no te ofthis when drivin galaden vehicle. By
doing so,youwill mak euse oftheengine' sbr ak‐
ing effect. Thisre lie vesth eload onthebr ak e
sy stem and preve nts thebr ak es from overheat‐
ing and wearing tooqu ickl y.
Do notus ecr uise contr olinthefo llo wing situa‐
tion s:
R Intraf fic situ ations whichrequ ire freq uent
ch ang esofspee d,e.g .in hea vytraf fic, on
wi nding roads.
R Onslippe ryroads. Accel erati ng can cause
th edr ive wheels tolose tract ion and the
ve hicle could then skid.
R Ifyo uar edr ivin gwhen visibilit yis poor .
Ope ratin gcr uis eco ntr ol &
WARNIN GRisk ofacci dent dueto stor ed
speed
If yo ucall upthestor ed speed andthis is
lo we rth an your cur rent spe ed,th eve hicle
deceler ates. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. Re
quirement s:
R ESP®
mus tbe act ivat ed, but notint erve ning .
R The vehicle speed isat leas t15 mp h
(20 km/ h).
R The transmis sionisin positio n005B. 17
6
Driving and parking

Oper
ating cruise contr ol #
Press thero ck er switc hesonthesteer ing
wheel control panel upordown tothe
desir edposition .
Ac tiv atin gcr uis eco ntr ol #
Select M with theright rock er switc h.
Ac tiv atin gcr uis eco ntr ol #
Press rock er switc h1 upM ordown
N.
The current spe edisstor ed and maint ained
by theve hicle.
or #
Select Jwithth elef tro ck er switc h.
The lastst or ed speed iscalled upand main‐
ta ined bytheve hicle.
If th elas tst or ed speed hasprev iousl ybeen
dele ted, thecur rent vehicle speed isstor ed.
% When youswit choffth eve hicle, thelas t
speed stor ed isdele ted.
Incr easing ordecr easing thesto redspe ed #
1mp h(1 km/h) :pr ess rock er switc h1 up
M ordown N tothepr essur epoint .
or #
5mp h(1 0 km/h) :pr ess rock er switc h1 up
M ordown N beyond thepr essur e
point .
or #
Accel erateth eve hicle tothedesir edspeed
and press rock er switc h1 upM.
Ad opting ade tected spee d #
Activatecr uise contr ol. #
Ifatraf fic sig nha sbee nde tected and isdis‐
pl ay ed intheins trument cluster: select J
wit hth elef tro ck er switc h.
The maximum permissible speedshownby
th etraf fic sig nis stor ed and theve hicle
maint ainsordoes notexc eed this speed.
Deactiv ating cruise contr ol #
Selec tO withth elef tro ck er switc h.
Switc hingoffcr uise contr ol #
Select Nwithth eright rock er switc h. %
Ifyo ubr ak e, deac tivateES P®
or ifES P®
int erve nes, cruise contr olisde acti vated. Ac
tiv eDi stance AssistDI ST RO NIC Fu
nction ofActiv eDi stance Assist
DI ST RO NIC
Ac tiveDis tance AssistDIS TRONI Cma intains the
se tspeed onfree-f lowing roads. Ifve hicles in
fr ont arede tected, these tdis tance isma in‐
ta ined, ifnec essar y,unt ilth eve hicle comes toa
halt. Thevehicle acceler ates orbrak es depend‐
ing onthedis tance totheve hicle infront and
th ese tspeed. Thespeed (inthera ng ebe twee n
15 mp h(2 0km/h) and130mp h(210 km/h) )
and thedis tance totheve hicle infront arese t
and save don thesteer ing wheel.
Ot her featur esofActiveDis tance Assist
DIS TRONI C:
R Adjus tsthedr iving style depending onthe
select eddrive pr ogr am (fuel-sa ving,comfort‐
able ordynamic) (/page15 0)
R React sto statio naryve hicles detected in
urb anspe edrang es (exc ep tbicy cles and
mo torcyc les) Dr
ivin gand parking 17
7

Selec
tingwhat theHead -upDispla ysho ws (Ex
am ple)
1 Toswitc hth eHead-up Displayon/ off
2 Leftdispla yar ea
Na vig ation system
Av erag econ sum ption
G-me ter
3 Centraldispl ayarea
Spe edom eter
Se tspeed inthedr iver assis tance system,
e.g. cruise control
Wa rnings from driver assis tance systems,
e.g. distance warning 4
Right displa yar ea
Tr af fic Sign Assist
Assi stant displa y
5 Toadjus tth eposition ,br ightn essand lowe r
displa yar ea
6 Inde xpoint s
7 Lowe rdisp lay ar ea (exa mp le:leftdispla y
ar ea)
Disp lay ar eas 2to4 that areno tre qu ired can
be hidden .
% Inaudio mode, thest atio nnam eor trac kwill
be sho wntemp orarily when theaudio source
is being activelyoper ated. Inaddition, the
lat estcalls willbedispla yedwhen thete le‐
phon elis ton theIns trument Displayis
activ elyoper ated. #
Toselect adispla y:swipe upwards on the
lef t-hand Touc hCon trol. #
Press thelef t-hand Touc hCon trol. Swit
ching theHead -upDispla yon/of fvia the
mu ltim edia system Multi
media system:
4 © 5
Set ting s5
Quick Access #
Select HUD.
The Head-up Displayis activ ated. 232
Instrument Displayand on-boar dcom puter

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
é ATTE NTION ASSIST: Take a
Break! *A
TTENTION ASSISThas detected fatig ue oran incr easing lack ofconc entration onthepar tof thedr iver
(/ page17 4). #
Ifnecessa ry,ta ke abr eak .
00B2
- -- mph *C
ruise con trol can notbe act ivat ed asnotall act ivation condition sar efulf illed. #
Obser vetheactiv ation conditions forcr uis econtr ol(/ page17 6).
Cr uis eCon trol Inop erative *C
ruise con trol ismalfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
Cruise Control Off *C
ruise con trol has been deact ivat ed.
If th er eis an additional warning tone, cruise contr olha sbe en deacti vatedaut omatic ally(/ page17 5).
ç
- -- mph *A
ctiveDis tan ceAssi stDIS TRONI Ccanno tbe acti vatedas notall activ ation condition sar efulf illed. #
Com plywithth eactiv ation conditions ofActiveDis tance AssistDIS TRONI C(/ page 180). 37
4
Display messa gesand warning/ indic ator lam ps

Opening
(from inside) ............................7 1
Po we rclosing function ........... ............... 73
Un loc kin g(emer gency key) .................... 73
Un loc kin g(fr om inside ).......................... 71
Door controlpan el.....................................1 6
DO T,Tire Iden tificat ionNumbe r(TI N) ... 318
Doub le-clutch functio n..... ...................... 154
Dr aw bar
see Tow- bar system
DRIFT MODE
Ac tivati ng ........... ................................. 207
Ac tivati on cond itions ........... ................207
Dea ctivating ........... .............................207
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>206
Dr inkin gand drivin g <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .......142
Dr ive Awa yAssis t.... ................................ 224
Dr ive Awa yAssis t
see Protect ion agains tcollision
Dr ive position
En gaging ...... ........................................1 54
Dr ive pr og ram dis pla y........... ..................151 Dr
ive pr og rams
se eDY NA MIC SELE CT
Dr iver's seat
see Seat
Dr iving safetysy stem .............................1 66
ABS (Anti-loc kBr aking System) ........... 168
Ac tiveBr ak eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 188
BA S(Br akeAssi stSystem) ............... ... 168
Cameras ........................................ ...... 166
EBD (electr oni cbr ak efo rc edis tribu‐
tion )..................................................... 172
ESP ®
(El ectr onicSt abilit yPr og ram) ..... 169
ESP ®
Cr oss wind Assi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 171
Ov ervie w .......................................... ....1 67
Ra dar and ultrasonic sensors.............. 166
Re sponsibili ty...................................... 166
ST EER CONTR OL............. ....................172
Dr ivin gsy stem
AMG adaptivespor tsuspen sionsys‐
te m + ..... ..............................................2 02
Dr ivi ng system
see 360° Camer a
see ActiveBli nd Spo tAssi st
see ActiveDis tance AssistDIS TRONI C see
ActiveEmerg encyStop Assis t
see ActiveLa ne Chang eAssi st
see ActiveLa ne Keeping Assist
see ActivePa rking Assist
see ActiveSpe edLimi tAssi st
see ActiveSt eer ing Assis t
see ATTENTION ASSIST
see Blind SpotAssis t
see Cruise control
see Driving safetysy stem
see HOLD function
see Parking AssistPA RK TRONI C
see Rear vie wcam era
see Traf fic Sign Assist
Dr ivin gtips
AM Gce ramic high-pe rfor mance
com posit ebr ak esy stem ......................1 45
Dr inking anddriving ............................ 142
Gene raldr ivin gtips .............................1 42
No teson breaking-in ane wvehicle ..... 141
Dr ows iness detection
see ATTENTION ASSIST
DY NA MIC SELECT ....................................1 50
Conf iguring drive pr ogr am I<0011001100110011001100110011001100110011001100110011001100110011
0011> 151
Dis play ing engin edat a........................ 152 Inde
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