warning lights MERCEDES-BENZ GLA 2020 Owner's Manual

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 0075
SRS Malfunction SRS
Malfunction
Ser viceReq uired Ser
viceReq uired The
restrain tsyst emismalf unction ing .The 0075 warninglamp also
ligh tsup intheins trumen tclus ter.
G WAR
NING
The airbags orEm erg ency Ten sion ingDevic es may either betrig-
ger eduninten tion ally or,intheeve ntofan acc iden t,may notbe
tr igge red.
The reisan increas edriskof injury.
X Vis itaqualif iedspecialistwor kshop immediat ely.
Fur ther inform ation about theres train tsyst em(Ypage 39). 0075
Fro ntLeftMal fun c‐ Fro
ntLeftMal fun c‐
tio nSer vice tio
nSer vice
Req uired Req
uired orFront Fro
nt
Rig htMalfunction Rig
htMalfunction
Ser viceReq uired Ser
viceReq uired The
restrain tsyst emismalf unction ing atthefron ton thelef tor
rig ht.The 0075 warninglamp alsolightsup intheins trumen tclus -
te r.
G WAR
NING
The airbags orEm erg ency Ten sion ingDevic es may either betrig-
ger eduninten tion ally or,intheeve ntofan acc iden t,may notbe
tr igge red.
The reisan increas edriskof injury.
X Vis itaqualif iedspecialistwor kshop immediat ely. 0075
Rea rLef tMal func‐ Rea
rLef tMal func‐
tio nSer vice tio
nSer vice
Req uired Req
uiredorRea r Rea
r
Rig htMalfunction Rig
htMalfunction
Ser viceReq uired Ser
viceReq uired The
rear left-han dor right-hand restrain tsyst emismalf unction ing .
The 0075 warninglamp alsolightsup intheins trumen tclus ter.
G WAR
NING
The airbags orEm erg ency Ten sion ingDevic es may either betrig-
ger eduninten tion ally or,intheeve ntofan acc iden t,may notbe
tr igge red.
The reisan increas edriskof injury.
X Vis itaqualif iedspecialistwor kshop immediat ely. 0075
Lef tSid eCur tain Lef
tSid eCur tain
Air bag Malfunction Air
bag Malfunction
Ser viceReq uired Ser
viceReq uired
or Rig htSideCur ‐ Rig
htSideCur ‐
tai nAir bag Mal‐ tai
nAir bag Mal‐
fun ctionService fun
ctionService
Req uired Req
uired The
left-han dor right-hand window curtainair bag ismalf unction ing .
The 0075 warninglamp alsolightsup intheins trumen tclus ter.
G WAR
NING
The leftor right win dow curtainair bag may either betrigge redunin-
te nt ion ally or,intheeve ntofan acc iden t,may notbe trigge red.
The reisan increas edriskof injury.
X Vis itaqualif iedspecialistwor kshop immediat ely. 212
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00E9
0051
The redseat beltwar ning lamp lights upafter theengine starts,assoon as
the drive r'sorthe front-passenge rdoor isclosed .
The drive ror front passenger hasnotfastened theirseatbelt.
X Fasten yourseat belt(Y pag e43).
The warning lamp goesout.
There areobjects onthe front-passenge rseat.
X Remo vethe objects fromthefront-passenge rseat andstow them inasecure
pla ce.
The warning lamp goesout. 00E9
0051
The redseat beltwar ning lamp flashes and anintermittent audib lewarni ng
sound s.
The drive ror front passenger hasnotfastened theirseatbelt.The vehicl eis
bei ng drive nfaster than15mph (25km/h )or has brieflybeen drivenfaster
than 15mph (25km/h) .
X Fasten yourseat belt(Y pag e43).
The warning lamp goesoutand theintermittent warningtone cease s.
There areobjects onthe front-passenge rseat. Thevehicl eis bei ng drive nfaster
than 15mph (25km/h )or has brieflybeen drivenfaster than15mph
(25 km/h) .
X Remo vethe objects fromthefront-passenge rseat andstow them inasecure
pla ce.
The warning lamp goesoutand theintermittent warningtone cease s. 232
Warning
andindic atorlamps inthe instrum entclusterOn-bo ardcomput erand displays

Safety
systems Warning/
indicator
lamp 00510051
Signal type
Possible causes/co nsequences and0050 0050
Solutions 00C6
0051
The yellow brakesystem warning lamplights upwhile theengine isrunning.
The brake system ismalfunction ing.
G WARNING
The braking characterist icsmay beaffected.
There isarisk ofan accident.
X Drive ontaking extracare.
X Visit aquali fiedspecialist workshop immediately. 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampis
lit while theengine isrunning. Awarning tonealsosounds.
G WARNING
The brake boosting effectismalfunction ingand thebraking characterist icsmay
be affected.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 145).
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampis
lit while theengine isrunning. Awarning tonealsosounds.
There isnot enough brakefluidinthe brake fluidreservoir.
G WARNING
The braking effectmaybeimpaired.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 145).
X Do not add brake fluid.Adding morewillnotcorrect themalfunction .
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . War
ning andindicator lampsin the instrum entcluster
233On-board computerand displays Z

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 0025
0051
The yellow ABS warning lamp islit whi lethe engine isrunning.
ABS istempora rilyunava ilable .There fore,BAS, Active BrakeAssist, ESP®
,EBD
(el ectronic brakeforcedistributio n),the HOLD function andhillstart assist,for
exampl e,are alsodea ctivated.
Possi blecaus esare:
R Self-di agnosi sis not yetcomple te
R The on-board voltagemay beinsuffi cient
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions lis-
ted above.The front andrear whee lscoul dtherefore lockifyou perform afull
brake application, forexampl e.
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebrak-
ing dista nceinan emerge ncybraki ngsitua tioncanincreas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isarisk ofan accide nt.
X Ca reful lydrive asui table distance,making slightsteering movements ata
spee dabo ve12 mph (20km/h) .
The functions mentioned aboveare available againwhen thewarni nglamp
goes out.
If the warning lamp isstill on:
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. 0025
0051
The yellow ABS warning lamp islit whi lethe engine isrunning. Awarni ng
tone alsosound s.
EBD ismalfu nctioning. Therefore,ABS, BAS, Active BrakeAssist, ESP®
,the
HOLD function andhillstart assist,for exampl e,are not available either.
ATTENTION ASSISTisdea ctivated.
G WARNING
The brake system continues tofunction normally,but witho utthe functions lis-
ted above.The front andrear whee lscoul dtherefore lockifyou perform afull
brake application, forexampl e.
The steerab ility and braki ngchara cteristics maybesevere lyaffected. Thebrak-
ing dista nceinan emerge ncybraki ngsitua tioncanincreas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. Warning
andindic atorlamps inthe instrum entcluster
235On-boardcomput erand displays Z

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00E500BB
0051
The yellow ESP®
and ESP®
OFF warning lamp sare litwhi lethe engine isrun-
ning.
ESP ®
,BAS, theHOLD function andhillstart assistare tempora rilyunava ilable .
Active BrakeAssist mayhave alsofail ed.
ATTENTION ASSISTisdea ctivated.
Self-di agnosi sis not yetcomple te
G WARNING
The brake system continues tofunction normally,but witho utthe functions lis-
ted above.
The braki ngdista nceinan emerge ncybraki ngsitua tioncanthus increas e.
If ESP ®
is not opera tional,ESP ®
is unab leto stabi lizethevehicl e.
There isan increas edrisk ofskiddi ngand anaccide nt.
X Ca reful lydrive asui table distance,making slightsteering movements ata
spee dabo ve12 mph (20km/h) .
The functions mentioned aboveare available againwhen thewarni nglamp
goes out.
If the warning lamp isstill on:
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Visi ta qua lified speci alist worksho pimmed iately. 00240049
0051
0049 (USAonly),0024 (Canada only):the red indica torlamp forthe electric
parki ngbrake flashes orlights upand/or theyellow warni nglamp forthe elec-
tric parki ngbrake lights up.
X Observe theadditiona ldisp laymessa gesinthe multi function display. 0075
0051
The redrestrai ntsystem warning lamp islit whi lethe engine isrunning.
The restrai ntsystem ismalfu nctioning.
G WARNING
The airbag sor Emergency TensioningDevices mayeither betriggere duninten-
tional lyor, inthe event ofan accide nt,may notbetriggere d.
There isan increas edrisk ofinjury .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Drive oncarefu lly.
X Contact aqua lified speci alist worksho pand have therestrai ntsystem
checked.
For further informati onabo utthe restrai ntsystem, see(Ypag e39). 238
Warning
andindic atorlamps inthe instrum entclusterOn-bo ardcomput erand displays

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions X
Make surethattheairsup plytothe engine radiator isnot blocked ,e.g. by
snow, slush orice.
X At coola nttempera turesbelow 248 ‡(120 †),drive tothe neares tqua lified
speci alist worksho p.
X Avoid heavyloa dson the engine asyou doso, e.g. drivinginmountai nouster-
rain andstop-and-go traffic. Drivi
ngsystems Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00BA
0051
The reddista ncewarning lamp lights upwhi lethe vehicl eis in motion. A
war ning tone alsosound s.
You areapproachi ngavehicl eor astationa ryobstacl ein you rline oftravel at
too high aspee d.
X Be prepa redtobrake immed iately.
X Pay carefu lattention tothe traffic situation. Youmay have tobrake ortake
evasi veaction.
Further informati onon the dista ncewarni ngfunction ofActive BrakeAssist
(Y pag e61). Warning
andindic atorlamps inthe instrum entcluster
241On-boardcomput erand displays Z

Gene
ralnotes
The multime diasystem section inthis Opera -
tor's Manua ldescrib esthe basi cprincipl esfor
opera tion.More information canbefound in
the Digital Operator'sManua l. Important
safetynotes G
WARNING
If you opera teinformation systemsandcom-
municatio nequ ipment integrated inthe
vehicle whendriving, youmay bedistracted
from thetraffic situation. Youcould also
lose control ofthe vehicle .There isarisk of
an accide nt.
Only opera tethis equipment whenthetraffic
situa tionpermits. Ifyou arenot sure that
this ispossi ble,park thevehicle paying
attention totraffic conditions andopera te
the equipment whenthevehicle isstation-
ary .
You must observe thelega lrequ irements for
the country inwhich youarecurrently driving
when operatingthemultime diasystem.
The multime diasystem calculates theroute to
the destinati onwithou ttaking thefollo wing
into account, forexampl e:
R traffic lights
R stop andyieldsigns
R parking orstopping restrictions
R road narrowi ng
R other roadandtraffic rulesand regul ations
The multime diasystem maygiveincorrect nav-
iga tion recommendati onsifthe actual street/
traffic situationdoes notcorrespond withthe
digi talmap's data.
For exampl e:
R adiverted route
R the road layout orthe direction ofaone-way
street hasbeen changed
For this reaso n,you must alwaysobserve road
and traffic rulesand regul ations duringyou r
journey. Roadand traffic rulesand regul ations
alw ayshave priorityover multime diasystem
driving recommendati ons. Navig
ation announcements areintended to
direct youwhiledriving withoutdiverting your
attention fromtheroad anddriving.
Plea sealw aysuse this feature instead ofcon-
sul ting themap displayfordirections. Looking
at the icons ormap displaycan distract you
from traffic conditions anddriving, and
increase therisk ofan accide nt.
This equipment complieswith FCCradiation
exposu relimi tsset forth foruncontrolled
equ ipment andmeets theFCC radiofreque ncy
(RF) Exposure Guideli nes inSuppl ement Cto
OET65.
This equipment hasvery lowlevel sof RF
energy thatisdeeme dto comply withoutmaxi-
mum permis siveexposu reeval uation(MPE).
However, itis recommended toinstall itat a
distance ofat lea st8inches (approx. 20cm)
betwee nthe radiation source andaperson's
body (notinclud inglimb ssuch ashands,
wrists, feetandlegs) . G
WARNING
Modi fications toelectronic components,
their software aswel las wiri ngcan impa ir
their function and/orthefunction ofother
networked components. Inparticu lar,sys-
tems releva ntto safety couldalsobeaffec-
ted. Asaresul t,these maynolonger func-
tion asintended and/orjeopardizethe oper-
ating safety ofthe vehicle .There isan
increase drisk ofan accide ntand injury.
Never tamper withthewiringaswel las elec-
tronic components ortheir software .You
shoul dhave allwork toelectrica land elec-
tronic equipment carried outataqua lified
specia listworkshop . Func
tionrestrictio ns
For safety reasons,some functions arerestric-
ted orunava ilable whil ethe vehicle isin
motion. Youwillnotice this,forexampl e,
becau seeither youwillnot beableto sele ct
certain menuitemsoramessag ewil lapp ear
to this effect. Func
tionrestrictio ns
243Multimedia system Z

The
tirepressure monitordoes notwarn youof
an incorr ectlysettire pressure. Observethe
not eson the recomm endedtirepressure
(Y page 308).
The tirepressure monitorisnot able towarn
you ofasudden lossofpressure, e.g.ifthe
tire ispenetr atedbyaforeign object.In the
event ofasudden lossofpressure, bringthe
vehicle toahalt bybraking carefully. Avoid
abrupt steeringmovemen ts.
The tirepressure monitorhas ayellow warning
lamp inthe instr ument cluster forindicatin g
pressure lossoramalfunct ion.Whether the
warning lampflashes orlights upindicates
whether atire pressure istoo low orthe tire
pressure monitorismalfunct ioning:
R ifthe warning lampislit cont inuously, the
tire pressure onone ormore tiresissignifi-
cant lytoo low. Thetirepressure monitoris
not malfunct ioning.
R ifthe warning lampflashes foraround a
minute andthen remains litconst antly, the
tire pressure monitorismalfunct ioning.
In addition tothe warning lamp,amessage
appears inthe multifunct iondisplay .Observe
the inform ationondisplay messages
(Y page 224).
It may take uptoten minutes foramalfunc-
tion ofthe tire pressure monitortobe indica-
ted. Amalfunct ionwill beindicated bythe tire
pressure warninglampflashing forapprox-
imately oneminute andthen remaining lit.
When themalfunct ionhas been rectified, the
tire pressure warninglampgoesoutafter a
few minutes ofdriving.
The tirepressure valuesindicated bythe on-
board computer maydiffer fromthose meas-
ured atagas station withapressure gauge.
The tirepressures shownbythe on-board
computer refertothose measured atsea level.
At high altitudes, thetire pressure valuesindi-
cated byapressure gaugearehigher than
those shown bythe on-board computer. Inthis
case, donot reduce thetire pressures.
The operation ofthe tire pressure monitorcan
be affect edbyinter ferenc efrom radio trans-
mitt ingequipment (e.g.radio headphones,
two-way radios)thatmay bebeing operated in
or near thevehicle. Checking
thetire pressur eelectroni-
cally X
Make surethattheSmart Keyisin position
0048 inthe ignition lock(Ypage 125).
X Press 0059or0065 onthe steerin gwheel
to select theServ. Serv.
menu.
X Press the0063 or0064 button toselect
Tire Pressure Tire
Pressure.
X Press the0076 button .
The current tirepressure ofeach tireis
shown inthe multifunct iondisplay .
If the vehicle wasparked forlonger than
20 minutes, theTire pressure willbe Tire
pressure willbe
displayed afterdriving afew minutes displayed
afterdriving afew minutes
message isshown.
Aft erateach- inprocess, thetire pressure
monit orautomatically detectsnew wheels or
new sensors. Aslong asaclear allocation of
the tire pressure valuetothe individual wheels
is not possible, theTire Pressure Monitor Tire
Pressure Monitor
Active Active
message isshown instead ofthe tire
pressure display.The tirepressures are
already beingmonitored.
If an emergenc yspare wheel ismounted, the
system maycontinue toshow thetire pressure
of the wheel thathasbeen removed forafew
minutes. Ifthis occurs, notethat thevalue dis-
played forthe position wherethespare wheel
is fitt ed isnot thesame asthe current tire
pressure ofthe emergenc yspare wheel.
Tire pressur emonitor warning mes-
sages If
the tire pressure monitordetect sa pressure
loss inone ormore tires,awarning message is
shown inthe multifunct iondisplay .The yellow
tire pressure warninglampthenlights up.
R Ifthe Please Correct TirePressure Please
Correct TirePressure
message appearsinthe multifunct iondis-
play, thetire pressure inat least onetireis
too low. Thetirepressure mustbecorrec ted
when theopportunit yarises.
R Ifthe Check TirePressure Check
TirePressure message
appears inthe multifunct iondisplay ,the tire
pressure inone ormore tireshasdropped
significant ly.The tires must becheck ed.
R Ifthe Tire Pressure WarningTire Tire
Pressure WarningTire
Failure Failure
message appears,thetire pressure
in one ormore tireshasdropped suddenly.
The tires must becheck ed. 314
Tir
epr essureWheels andtires