2020 MERCEDES-BENZ GT R ROADSTER lane assist

Ov
ervie wof driving systems anddriving
saf etysy stems In
this sect ion, youwill find informa tionab ou t
th efo llo wing drivin gsy stems anddriving safety
sy stems:
R ABS (Anti-loc kBra king System)
(/ page13 9)
R ActiveDis tance AssistDIS TRONI C
(/ page 147)
R AMG adaptive spor tsuspen sionsystem
(/ page15 7)
R ActiveBr ak eAssi st(/ pag e14 2)
R Lane Keeping Assist(/ page16 7)
R ATTENTION ASSIST(/ page16 3)
R BAS(Bra keAssis tSys tem) (/ page13 9)
R Hill StartAs sis t(/ page15 1)
R EBD (Ele ctronic Brakefor ce Dis tribution)
(/ page14 2)
R ESP ®
(Electr onicStability Program)
(/ page14 0)
R HOLD function (/page15 1) R
Parking AssistPA RK TRONI C(/ page15 8)
R Front and rear vie wcam era(/ page16 1)
R RACE STAR T(/ page 152)
R Cruis econtr ol(/ page 145)
R Blind SpotAssis t(/ page16 6)
R Traf fic Sign Assist(/ pag e16 4) Fu
nction ofABS The
Anti-loc kBr ak eSy stem (ABS )re gulat esthe
br ak epr essur ein critical driving situation s:
R Dur ing braking, e.g.atfull brak eapplication
or insuf ficie nttiretracti on, thewheels are
pr eve nted from lock ing.
R Vehicle steer ability whilebraking isensur ed.
If ABS interve nes when braki ng, youwill feel a
pulsing inthebr ak epedal. Thepulsating brak e
pedal canbeanindicat ionofhazar dous road
con dition sand canserveas are minder totake
ex tra care while dr ivi ng. Sy
stem limit s
R ABSis act ive from speeds ofappr ox.5 mp h
(8 km/ h).
R ABSma ybe impair edorma yno tfunc tion ifa
malfunc tionhasoccurredand theye l‐
lo w 0025 ABSwa rning lam plight sup con tin‐
uousl yin theins trument clusteraf te rth e
engine isstar ted. Fu
nction ofBA S(Br akeAssis tSy stem) &
WARNIN GRisk ofan acci dent caused by
a malf unctionin BA S(Br akeAssi stSys‐
te m)
If BA Sis mal functi oning,th ebr aking distance
in an eme rgency braking situation is
incr eased. #
Depr essthebr ak epedal withfull forc e
in emer gency braki ng situa tions. ABS
pr eve nts thewheels from locking . BA
Ssu ppo rts yo ur eme rgency braking situation
wit hadditional brak efo rc e. Dr
iving andparking 13
9

R
Onbends withatight radius. Se
tting Activ eBr ak eAs sist Multimedia
system:
4 Vehicle 5
k Assist ance
5 Act ive Brak eAssist #
Activateor deacti vate thefunc tion.
% Itis recomme ndedthat youalw ayslea ve
Ac tiveBr ak eAssi stact ivat ed.
% IfAc tiveBr ak eAssi stisdeact ivat ed, the
00D4 symbol appearsinthest atus barofthe
multifu nctiondisplay. Speed
controlcruise 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
fo ot from theacceler ator pedal afte rove rtakin g,
cr uise control will resume speed regulation back
to thestor ed speed. Cr
uise controlis oper ated using thecor respond‐
ing steer ing wheel buttons. Youcan stor ean y
speed above19 mp h(30 km/h) uptothemaxi‐
mum speed.
If yo ufa ilto adap tyo ur drivin gst yle, cruise con‐
tr ol can neither reduce therisk ofan accident
nor override thelaws ofphysics. Itcan notta ke
int oacc ount road, weather ortraf fic condi tions.
Cr uise contr olisonly anaid. The driver is
re sponsible forth edis tance totheve hicle in
fr ont, forve hicle speed, forbr aking ingood time
and forst ay ing inlane.
Displa yson themu ltifunct iondisp lay
The status ofcruise control and thestor ed
speed aresho wninthemultifunc tiondispla y. 1
Cruise contro lis selec ted
2 Spee dis save d, cruise control isdeactiv ated
3 Speed issave d, cruise control isactiv ated
% The segmen tsbetween 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 Dr
iving andparking 14
5

#
Accel erateth eve hicle tothedesir edspeed. #
Press rock er switc h2 up(SET +). #
Todeac tivatecr uis eco ntr ol:
pr ess rock er switc h3 down (CNCL). #
Todeac tivatecr uis eco ntr ol:pr ess rock er
switc h1 down.
% 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
19 mp h(30 km/h) and120mp h(2 00 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 efficie nt, com‐
fo rtable ordynam ic)(/ page12 1)
R Initiat es accel erati on tothestor ed speed if
th etur nsignal indicat orisswitc hedonto
ch ang eto theov ertaking lane.
Ac tiveDis tance AssistDIS TRONI Cis only anaid.
The driver isresponsible forke eping asaf edis‐
ta nce totheve hicle infront, forve hicle speed
and forbr aking ingood time. Sy
stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Insno w,rain, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringreat lyvarying
ambien tlight .
R The windsh ieldinthear ea ofthecamer ais
dir ty,fo gg ed up, damag edorcovered.
R Ifth era dar sensor sar edir tyor covered.
R Inpar kingga rage sor on roads withsteep
uphill ordownhill gradients.
R Ifth er ear enar row vehicles infront, suchas
bicy cles ormo torcyc les.
In addition ,on slipper yro ads, brakin gor acc el‐
er atin gcan caus eon eor severalwheels tolose
tr act ion and theve hicle could then skid.
Do notuse ActiveDis tance AssistDIS TRONI Cin
th ese situation s. Dr
iving andparking 14
7

&
WARNIN GRisk ofacci dent from acce ler‐
ati on orbraki ng byActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cma yacc el‐
er ateor brak ein thefo llo wing cases ,fo r
ex am ple:
R Ifth eve hicle pullsaway usin gAc tiveDis ‐
ta nce AssistDIS TRONI C.
R Ifth estor ed speed iscalled upand is
consider ablyfa ster or slo werth an the
cur rently driven spe ed.
R IfAc tiveDis tance AssistDIS TRONI Cno
lo ng er detects ave hicle infront ordoes
no tre act toreleva nt objects. #
Alw ayscar efully observethetraf fic con‐
di tions andbeready tobrak eat all
times. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntdece lera tio nby ActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cbrak es
yo ur vehicle withup to50% ofthemaximum
possible deceleration.Ifth is decele ratio nis
no tsu fficien t,Ac tiveDis tance Assist
DIS TRONI Caler ts youwit havis ual and
aco ustic warning. #
Inthese cases, adjustyo ur spee dand
ke ep asuf ficie ntdist anc e. #
Brak eth eve hicle yourself and/or take
ev asiv eact ion. &
WARNIN GRisk ofacci dent ifde tection
functi onofActiveDis tan ceAssi st
DIS TRONI Cis impai red
Ac tiveDis tance AssistDIS TRONI Cdo es not
re act orhas alimit edreact ion:
R when drivin gon adif fere nt lane orwh en
ch ang inglane s R
topedes trians, animals, bicycles orsta‐
tio nar yve hicles, orune xpect edobs tacle s
R tocom plex traf fic condi tions
R tooncom ingvehicles andcrossing traf fic
As are sult, ActiveDis tance Assist
DIS TRONI Cma ynei ther giv ewa rnings nor
int erve ne insuch situations. #
Alw aysobser vethetra ffic con dition s
car efull yand react accordin gly. Oper
ating Activ eDi stance AssistDI ST RO NIC
Re quirement s:
R The vehicle hasbeen star ted.
R The elect ric pa rking brak eis released.
R ESP®
is act ivat ed and isno tint erve ning .
R The trans mis sion isin po sitio n005B.
R Allthedoor sar eclosed.
R The checkof thera dar sensor system has
been success fullycom pleted(vehicle travel‐
ing faster than 12 mp h(20 km/h)) 14
8
Driving and parking

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.
The func tional ity ofATTENTION ASSISTis
re strict ed, and warnings maybe dela yedor not
occ uratall inthefo llo wing situat ions:
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 etime hasbeen setincor rectl y. R
Inactiv edr iving situations, ifyo uch ang e
lane sand vary your spee dfreq uen tly.
The ATTENTION ASSISTtir edness oraler tnes s
assessment isdele tedand restar tedwhen con‐
tin uing 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.chang ingdriver sor taking
a br ea k).
Se ttin gAT TENTI ONASSIST
Multimedia system:
4 Vehicle 5
k Assist ance
5 ATTE NTION ASSIS T
Se tting options #
Select Standard, SensitiveorOff.
Sugg esting are st area #
Select SuggestRes tArea. #
Activate0073 ordeacti vate thefunc tion 0053.
If AT TENTION ASSISTde tects fatig ue or
incr easing lack ofatt ention ,it sugg ests a
re st area inthevicinit y. #
Selec ta sugg estedre st area: youar egui‐
ded totheselect edrest area. Tr
af fic Sign Assis t Fu
nction ofTraf fic Sign Assis t Tr
af fic Sign Assistdetects traf fic sig ns with mul‐
tifunction camera1. Itassi stsyo uby displa y‐
ing detected spe edlimits andovertakin gre stric‐
tions intheins trument cluster. 16
4
Driving and parking

R
Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions.
R Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth etra ffic sign sar ehar dto detect, e.g. due
to dir tor sno w,orbecause they areco vered
or due toinsuf ficie ntlighti ng.
R Ifth einf ormation inthena vig ation system's
digit almap isincor rect or out-of-da te.
R Ifth esigns areambiguous, e.g.traffic sign s
on con stru ction sites orinad jacent lanes.
R Ifyo utur nshar ply, when passin gtraf fic sig ns
ou tsid eth ecamer a'sfield ofvision.
Se tting Traf fic Sign Assis t
Mult imed iasystem:
4 Vehicle 5
k Assist ance
5 Traffic SignAssist
Displa yingdetected traf fic signs inthe
me diadispla y #
Select DisplayinCOM AND. #
Activate0073 ordeacti vate 0053 thefunc tion. Blind
SpotAssis t Fu
nction ofBlind SpotAssis t
At speeds aboveappr oximat ely18 mp h
(30 km/ h),Blind SpotAss istuses twolat eral,
re ar-facin gra dar sensor sto monit orthear ea up
to 10 ft(3 m) behind your vehicle anddirectl y
ne xt to your vehicle. Below18 mp h(30 km/h),
th esy stem isno tactiv eand vehicles inthemon‐
it or ing rang ear eno tde tected.
If Bli nd Spo tAssi stisact ivat ed, thewa rning
lam pin theoutside mirrorlig hts upyello wat
speeds ofup to18 mp h(30 km/h). Atspeeds
abo veappr oximat ely18 mp h(30 km/h), the
wa rning lam pgoes outand BlindSpo tAss istis
opera tional.
If ave hicle isde tected within themonit oring
ra ng eat spe edsab ove 18mp h(30 km/h), the
wa rning lam pin theoutside mirrorlig hts upred.
If ave hicle isde tected clos eto your vehicle in
th elat eral monit oring rang eand youswit chon
th etur nsignal indicat orinthecor responding
dir ection, awa rning tone sou nds once andthe
wa rning lam pin theoutside mirrorflashes red. If
th etur nsignal indicat orremains switchedon,all ot
her detected vehicles areindicat edonlyby the
fl ashin gof there dwa rning lam p.
If yo uove rtak eave hicle quickl y, no warning is
giv en. &
WARNIN GRisk ofacci dent despite Blind
Spo tAssi st
Bli nd Spo tAssi stdoes notre act tovehicles
appr oaching andovertakin gyo uat agr ea tly
di ffer ent speed.
As are sult, Blind SpotAssis tcanno twa rn
dr iver sin this situat ion. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. Blind
SpotAssis tis onl yan aid. Itma yfa ilto
de tect some vehicles andisno ta subs titutefo r
att ent ive dr ivin g.Alw aysensur eth at ther eis suf‐
fi cie ntdist anc eto theside forot her road user s
and obstacle s. 16
6
Driving and parking

Sy
stem limit s
The system maybe limit edinthefo llo wing situa‐
tion s:
R The sensorsar edir tyor covered.
R Poor visibility ,e.g. due tofog, hea vyrain,
sno wor spr ay.
R Narrow vehicles, e.g.bicycles, arewit hin the
monit oring rang e.
R Ifth elanes areve ry nar row or very wide,
espec iallyif ve hicles areno tdr iving inthe
middl eof their lane.
Wa rnings maybe issued inerro rwhen driving
close tocrash barrier sor similar solidlanebor‐
der s.Wa rnings maybe interru pte dwhen driving
alongside longvehicles, forex am ple truc ks,fo ra
pr olong edtime.
Blind SpotAssis tis no toper ationa lwhen reve rse
ge ar iseng aged. Ac
tiv atin g/deac tivatin gBli nd Spo tAs sist or
Ac tiv eBli nd Spo tAs sist
Multimedia system:
4 Vehicle 5
k Assist ance
5 Blind SpotAssist #
Activate0073 ordeacti vate 0053 thefunc tion. Lane
Keeping Assist Fu
nction ofLane Keeping Assist Lan
eKe eping Assistmonit orsth ear ea infront of
yo ur vehicle bymeans ofmultifu nctioncamera
1. Itser vesto protect youag ains tunin tentio n‐ al
ly leav ing your lane .Yo uwill bewarned by
means ofavibr ation inthesteer ing wheel.
Yo uar ewa rned byvibr ation pulses inthesteer‐
ing wheel inthefo llo wing circums tances:
R Lane Keeping Assistde tects lane mar kings .
R Afront whe elpa sse sov er thelane marking s.
Whe ther awa rning isissued andwhen this
occ ursalso depen dson theselect edsensit ivity
se tting (sta nda rdoradap tive).
Lane Keeping Assistcan neither reduce therisk
of an accident ifyo ufa ilto adap tyo ur drivin g
st yle nor override thelaws ofphysics. Itcan not
ta ke intoacc ount road, weather ortraf fic condi ‐
tions .Lane Keeping Assistis onl yan aid. Youar e
re sponsible forth edis tance totheve hicle in
fr ont, forve hicle speed, forbr aking ingood time
and forst ay ing inyour lane .
Lan eKe eping Assistis available inthespeed
ra ng ebe twee n40 mph(60 km/h) and120mp h
(200 km/h). Dr
iving andparking 16
7

Sy
stem limita tions
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.
Sensi tivity ofLane Keeping Assist
Wi th theSt andar dor Adaptivese tting ,yo ucan
inf luen cewhen thewa rning vibration ofLane
Ke eping Assistta ke splace.
In both theSt andar dand Adaptivese tting s,no
wa rning vibration occursin thefo llo wing situa‐
tion s:
R Youha ve switc hedonthetur nsignal indica‐
to r.
R Adr ivi ng safety system interve nes, such as
AB S,BA Sor ESP ®
.
In theAd aptivese tting ,th er ewill also beno
wa rning vibration inthefo llo wing situat ions:
R The vehicle isacceler ated orbrak ed consid‐
er ably .
R Yousteer activ ely, e.g. swerve toavo idan
obs tacle orchang elane quickl y.
R Youcut thecor ner onashar pbend. Ve
hicl eto wing instruct ions
The vehicle isno tsuit able forth euse oftow bar
sy stems that areused forflat towing ording hy
to wing, forex am ple. Attach ing and using tow bar
sy stems canlead todamag eon theve hicle.
When youar eto wing ave hicle withto w bar sys‐
te ms, safedr iving charact eristic scan notbe
guar anteed forth eto wing vehicle ortheto we d
ve hicle. Thevehicle-tr ailercombination may
sw erve from side toside. Complywithth eper‐
mitt edtowing methods (/page32 4) and the
ins truct ions forto wing withbo th axle son the
gr ou nd (/ page 325). 16
8
Driving and parking