2020 MERCEDES-BENZ GLA start stop button

Problem
Possible
causes/co nsequences and0050 0050
Solutions You
cannolonger lock
or unlock thevehicle
using KEYLE SS-GO. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 72)and replace itifneces-
sary (Ypage 72).
If this does notwork:
X Unlock (Ypage 76)orlock (Ypage 77)thevehicle usingthe
mechanical key. There
isinterf erence fromapowerful sourceofradio waves.
X Unlock (Ypage 76)orlock (Ypage 77)thevehicle usingthe
mechanical key. KEYLE
SS-GO ismalfunctionin g.
X Lock/ unlock thevehicle usingtheremote controlfunct ionofthe
SmartK ey.
X Have thevehicle andSmartK eycheck edataqual ified specialist
workshop.
If the vehicle canalso notbelocked/unlock edusing theremote
cont rolfunct ion:
X Unlock (Ypage 76)orlock (Ypage 77)thevehicle usingthe
mechanical key.
X Have thevehicle andSmartK eycheck edataqual ified specialist
workshop. The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary
(Y page 295).
or
X Jump-start thevehicle (Ypage 296).
or
X Consult aquali fiedspecialist workshop. The
engine cannot be
started usingtheStart /
Stop button. TheSmart-
Key isin the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 72)and replace itifneces-
sary (Ypage 72).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. 74
Smar
tKeyOpening andclosing

G
WARNING
If objects, luggage orloa dsare not secure d
or not secure dsuffi ciently ,they couldslip ,
tip over orbe flung aroundand thereby hit
vehicl eoccupa nts.There isarisk ofinjury ,
particu larlyin the event ofsud den braki ng
or asud den change indire ction.
Alwa ysstore objects sothat they cannot be
flung around.Secure objects, luggage or
loa dsaga inst slipping ortippi ngbefore the
journey .
! The
tailgate swings upwards andtothe
rear when opened .There fore,make sure
that there issuffi cient clearance aboveand
behi ndthe tailgate.
The openi ngdime nsions ofthe tailgate canbe
found inthe "Veh icledata "section
(Y pag e341) .
You shou ldprefera blyplacelug gage orloa ds
in the cargo compartment. Observetheload-
ing guidel ines (Ypag e251).
Do not leavethe SmartKey inthe cargo com-
partment. Youcouldotherwi selock yourself
out.
The tailgate canbe:
R opened andclosed manuallyfrom outside
R vehi cleswith EASY-PA CKtailgate :
opened /closed automatica llyfrom theout-
side
R vehi cleswith EASY-PA CKtailgate :
opened /closed automatica llyfrom the
insid e
R vehi cleswith EASY-PA CKtailgate and
with KEYLESS-GO orKEYLESS-GO start
functio n:closed withtheremote operating
swi tch onthe SmartKey
R rele ased withtheemerge ncyrelease from
the insid e Tailgate
obstruction detectionwith
reversi ngfeature
On vehicl eswith anEASY-PACK tailgate, the
tail gate isequ ipped with automatic obstacle
recognitio nwith areversi ngfeatu re.Ifasoli d
object blocks orrestricts thetailgate when
au tomatica llyopeni ngorclosi ng,this proce-
dure isstoppe d.Ifthe tailgate isstoppe ddur- ing
the closi ngprocess ,the tailgate automati-
call yopens againslig htly. Theautomatic
obstructio ndetection withreversi ngfeatu reis
only anaid.It is not asub stitute foryou ratten-
tiveness whenopeningand closi ngthe tail-
gate. G
WARNING
The reversi ngfeatu redoes notrespo nd:
R to soft, light and thin objects, e.g.fingers
R over thelast1/3 in(8 mm) ofthe closi ng
movement
The reversi ngfeatu recannot prevent some-
one from becomi ngtrappe din these situa-
tions inparticu lar.There isarisk ofinjury .
Make surethatnobody parts areinclose
proximi tyduri ngthe closi ngproced ure.
If someb odybecomes trapped:
R press the0054 button onthe SmartKey ,
or
R pul lor press theremote operatingswitch
on the drive r'sdoor or
R press theclosi ngbutton/STOP buttonin
the tailgate or
R pul lthe handl eon the tailgate
Vehic leswith HANDS -FREEACCES S:itis
als opossi bletostop theclosi ngprocess by
performi ngakicking movement undertherear
bump er. Openi
ngand closing manually
Openi ng 78
Cargo
compar tmentOpeni ngand closi ng

X
To clos e:pre ssbutton 0043onthe tailgate .
or X Vehi
cles with EASY-PA CK tailgate and
KE YLES S-GO orKEYLES S-GO startfunc-
tio n:ifthe Sma rtKey islocate din the imm e-
di ate vicinity ofthe vehicle, pre ssthe 0054
bu tton onthe Sma rtKey .
Yo ucan release the button assoo nas the
tai lgate starts toclo se.
X To sto pthe clos ingproc ess: pre ssbut-
ton 0043onthe tailgate again.
or
X Pu llthe handl ein the tailgate .
or X Pre ssthe 0054 button onthe Sma rtKey
unti lthe tailgate stop s.
or X Pre ssorpullthe rem oteopera ting switch on
the driver 'sdo or. HA
NDS -FRE EAC CESS
Impo rtant safetynotes G
WAR
NING
The vehicleexha ustsy stem canbecome
ver yhot. Ifyo uus eHANDS-FR EEACC ESS,
yo ucou ldbu rn yoursel fby tou ching the
exha ustsy stem .The reisaris kof inju ry.
Alw aysensu retha tyo uma kethe kicki ng
move ment onlywi thi nthe detecti onrang eof
the sens ors.
! If
the Sma rtKey iswithi nthe rearde tecti on
rang eof KEYL ESS-GO ,the followi ng situa -
tio ns, forexa mpl e,cou ldlead tothe unin-
tenti onalop eni ng ofthe tailgate :
R wh en using anautoma ticcar wash
R wh en using apo we rwa she r
Ma kesure tha tthe Sma rtKey isat leas t
10 ft(3 m) awa yfrom the vehicle.
i Yo
ucan also deacti vate KEY LESS-G O.Fur -
the rinf orm ation ondeacti vating andactivat-
ing KEY LESS-G O(Y page 70). Ge
neral notes Wi
th KEY LESS-G Oand HANDS-FR EEACC ESS,
yo ucan open orclo sethe tailgate orstop the
pro ced urewi thou tus ing your hands .Thi sis
us efu lif yo uha ve your hands full. To do this,
ma keakicki ngmov eme ntund erthe bumpe r
wi th your foo t.
Ob serve the followi ng points :
R Ca rry your KEY LESS-G Okey abou tyo ur per-
son .The Sma rtKeymu stbe atthe rearof
the vehiclein the detecti onrange ofKEY -
LESS-G O.
R Wh enma king thekicki ngmov eme nt,make
su re tha tyo uar esta ndi ng firml yon the
gro und andthatthe reissu fficie ntcle arance
to the rearof the vehicle. Yo ucou ldothe r-
wi se lose your balance, forexa mpl eon ice. R
Alw aysens uretha tyo uonl yma kethe kick-
ing mov eme ntwithi nthe detecti onrange of
se nso rs0043.
R Stand atleas t12 in(30 cm)aw ay fromthe
rea rar ea while do ing so.
R Do not come intoconta ctwith the bumpe r
wh ile ma king thekicki ngmov eme nt.Othe r-
wi se ,the senso rsma ynot functio ncor-
rectl y.
R HANDS-FR EEACC ESS does not functio n
du rin geng inestart.
R Dir tcau sedby roa dsa ltor sno warou nd
se nso rs0043 mayres tric tfu nctio nality.
Usi ngthe HANDS-FR EEACC ESS with a
pro sthe ticleg ma yres tric tfu nctio nality.
R IfaKEY LESS-G Okey isat the rearof the
veh iclein the detecti onrange ofKEY LESS-
GO ,HANDS-FR EEACC ESS couldbe trig - 80
Ca
rgo compartmen tOpening and clos ing

or
restric tsaside window fromtraveling
upwards duringtheautomatic closingprocess,
the side window opensagainautomatically.
During themanual closingprocess, theside
window onlyopens againautomatically after
the correspon dingswitch isreleased. The
automatic reversingfeatureisonly anaid and
does notrelieve youofthe responsibility to
pay atten tionwhen closing aside window. G
WARNING
The reversing featuredoesnotreact:
R to soft, lightandthin object s,e.g. fingers
R while adjusting
This means thatthereversing featurecan-
not prevent someone beingtrapped inthese
situations. Thereisarisk ofinjury.
Make surethatnobody parts areinclose
proximity duringtheclosing procedure. If
someone becomestrapped,pressthe0062
button toopen theside window again. Opening
andclosi ngthe side win-
dows
The switches forallside windows arelocated
on the driver's door.There isalso aswitch on
each doorforthe correspon dingsidewindow.
The switches onthe driver's doortakeprece-
dence. 0043
Fron tleft
0044 Fron tright
0087 Rear right
0085 Rear left X
Turn theSmart Keytoposition 0047or0048 in
the ignition lock(Ypage 125).
X To open manua lly:press andhold thecor-
responding switch.
X To open fully: press theswitch beyond the
pressure pointandrelease it.
Automat icoperation isstart ed.
X To close manua lly:pull thecorrespon ding
switch andhold it.
X To close fully:pulltheswitch beyond the
pressure pointandrelease it.
Automat icoperation isstart ed.
X To interr uptautom aticoperat ion:press/
pull thecorrespon dingswitch again.
i If
you press/pull theswitch beyond the
point ofresistanc e,automatic operationis
start edinthe correspon dingdirection .You
can stop automatic operationbypressing/
pulling theswitch again.
i You
cancont inue tooperate theside win-
dows afteryouswitch offthe engine or
remove theSmart Key.Thisfunct ionremains
active forfive minutes oruntil thedriver's or
front -passenger doorisopened.
i When
theoverride featureforthe side win-
dows isactivated (Ypage 59),theside win-
dows cannotbe operated fromtherear. Conveni
enceopening
Vehicles withKEYL ESS-GO orKEYL ESS-GO
star tfunction: youcan vent ilate thevehicle
before youstart driving.
The Smart Keycanalso beused tocarry out
the following functionssimultaneously:
R unlock thevehicle
R open theside windows
R open thepanorama roofwith power tilt/slid-
ing panel andtheroller sunblind
The conv enienc eopening featurecanonly be
operated usingtheSmart Key.
The "conven ienceopening" featureisalso
availa blewhen thevehicle isunlocked.
i Vehicles
withKEYL ESS-GO orKEY-
LESS-GO startfunction: theSmart Key
must beinclose proximity tothe vehicle. 84
Side
window sOpening andclosing

!
Only
open thesliding sunroof ifit is free of
snow andice.Otherwise, malfunctions may
occur.
Do not allow anything toprotrude fromthe
sliding sunroof. Otherwise, theseals could
be damage d.
! The
weather canchange abruptly .It could
start torain orsnow. Makesurethatthe
sliding sunroof isclosed whenyouleave the
vehicle. Thevehicle electronics canbedam-
aged ifwater enters thevehicle interior.
i Resonance
noisescanoccur inaddition to
the usua lairflow noiseswhenthesliding
sunroof isopen. Theyarecaused byminor
pressure fluctuations inthe vehicle interior.
Change theposition ofthe sliding sunroof or
open aside window slightlytoreduce or
eliminate thesenoises. Sliding
sunroof reversing feature
In the followi ngsection, theterm "slidingsun-
roof" refers tothe panorama roofwith power
tilt/sliding panel.
The sliding sunroof isequip pedwith anauto-
matic reversing feature.Ifasolid object blocks
or restrict sthe sliding sunroof duringtheclos-
ing process, thesliding sunroof opensagain
automaticall y.However, theautomatic revers-
ing feature isonly anaid and does notrelieve
you ofthe responsibili tyof payi ngattent ion
when closing thesliding sunroof. G
WARNING
The reverse function doesnotreact inpar-
ticular:
R to soft, lightandthin objects, e.g.fingers
R over thelast 1/6 in(4 mm) ofthe closing
path
R while adjusting
R when closing thesliding sunroof again
manuall yimmediately afterautomatic
reversing
This means thatthereversing featurecan-
not prevent someone beingtrapped inthese
situations. Thereisarisk ofinjury.
Make surethatnobody parts areinclose
proximity duringtheclosing procedure. If
somebody becomestrapped:
R release thebutton immediately ,or
R briefly pushthebutton inany direction
during automatic closing.
The closing process isstopped. G
WARNING
If you close thesliding sunroof againimme-
diately afterithas been blocked orreset,
the sliding sunroof closeswithincreased
force.
Parts ofthe body could betrapped inthe
closing areainthe process. Thereisarisk of
injury orbecoming trapped.
Make surethatnoparts ofthe body arein
the closing area.
If somebody becomestrapped:
R release thebutton immediately ,or
R briefly pushthebutton inany direction
during automatic closing.
The closing process isstopped. Operating
thepanoram aroof with
power tilt/sliding panel
Opening andclosing 0043
Toraise
0044 Toopen
0087 Toclose/lower
The panorama roofwith power tilt/sliding
panel canonly beoperated whentheroller
sunblind isopen. 88
Panorama
roofwith powe rtilt/sliding panelOpeningandclosing

G
WARNING
The reverse function doesnotreact inpar-
ticula r:
R to soft, light and thin objects, e.g.fingers
R when closingthe rollersunbl indagain
manua llyimmed iatelyafter automatic
reversi ng
This means thatthereversi ngfeatu recan-
not prevent someone being trappe din these
situa tions. There isarisk ofinjury .
When closingthe rollersunbl ind,make sure
that nobody parts areinthe range ofmove-
ment.
If someb odybecome strappe d:
R rele ase thebutton immediately,or
R brie flypus hthe button inany direction
duri ngautomatic closing.
The closi ngprocess isstoppe d.
Openi ngand closing 0043
Opens
0044 Opens
0087 Closes
X Turn theSmartKey toposi tion 0047or0048 in
the ignitio nlock (Ypag e125) .
X Press orpul lthe 0057 switch inthe corre-
spondi ngdire ction.
If you press/p ullthe 0057 switch beyond the
point ofresis tance, automatic operationis started
inthe correspo ndingdirection. You
can stop automatic operationbypressi ng/
pul ling theswitch again.
After openingthe panora maroof with power
tilt/sli dingpanel ,the rollersunbl indautomati-
call ycloses slightly. Thisreducesdrafts inthe
vehicl einterior.
Rese tting thepanorama roofwith
powe rtilt/s lidingpanel orthe rolle r
sunbl ind Res
etthe panora maroof with powertilt/sli d-
ing panel orthe rollersunbl indifthe panora ma
roof with powertilt/sli dingpanel orthe roller
sunbl inddoes notmove smoothly .
X Turn theSmartKey toposi tion 0047or0048 in
the ignitio nlock (Ypag e125).
X Pul lthe 0057 switch repea tedlytothe point
of resis tance inthe direction ofarrow 0043
until thepanora maroof with powertilt/sli d-
ing panel isfull yclosed .
X Keep the0057 switch pulled foranadd i-
tional second.
X Pul lthe 0057 switch repea tedlytothe point
of resis tance inthe direction ofarrow 0043
until therollersunbl indisfull yclosed .
X Keep the0057 switch pulled foranadd i-
tional second.
X Make surethatthepanora maroof with
pow ertilt/sli dingpanel andtherollersun-
bli nd can befullyopened andclosed again.
X Ifthis isnot thecase, repeatthe steps
abo ve. 90
Pano
rama roofwith pow ertilt/s lidingpanelOpeni ngand closi ng

0084
Switches coolingwith airdeh umidifica tion on/off (Ypage 118 )
006B Switches therearwi ndow defroste ron/off (Ypage 122 ) Note
son using the air-c onditi oning
sys tem
Ai r-co nditioning sys tem Bel
ow,yo ucan find anumb erofnotes and
reco mmend ations tohel pyo uus ethe air-con-
di tioni ngsystem optimally.
R Swi tch onthe air-cond itioning system by
turni ngcontrol knob0083clockwi setothe
des iredpos ition (except position 0).
R Set thetemp erature to72 ‡(22 †).
R Rec omme ndationfor avo iding miste d
wi ndo wsatlow exte riortempe ratures
or inrain :swi tch onthe 005A coolingwith
deh umidifica tion functi on(Ypage 118 ).
Set airdi stri bution to0061 andifpos sible
swi tch off009C and009B (Ypage 120).
Dea ctiva teair-reci rculation mod e008A
(Y page 122 ).
Set airflo wcontrol 0083toasetti ngbetw een
3 and 6(Y page 120).
R Rec omme ndationfor rapid coolin gor
heati ngofthe vehicle interi or:brieflyset
ai rflo wcontrol 0083toasetti ngbetw een3
and 6(Y page 120).
R Rec omme ndationfor aco nstan tveh icle
in teri ortempe rature: setairflo wcontrol
0083 toasetti ngbetw een1and 3
(Y page 120 ).
R Rec omme ndationfor airdistribu tionin
wi nte r:sel ect the 009B and0061 settings
(Y page 120).
Rec omme ndationfor airdistribu tionin
summe r:sel ect the 009C or009C and0061
setti ngs(Ypage 120 ).
R Only usethe "Wind shield def rosti ng"func-
tion brieflyunti lthe windsh ield iscle ar
ag ain. R
Only useair-reci rculation mod ebri efly,e.g.
if there areunpleas ant outsid eodo rsor
wh en inatunnel .The window scou ldothe r-
wi se fog up,since nofres hairis dra wn into
the vehiclein air-reci rculation mod e.
R Ifyo ucha nge thesetti ngsofthe climate
control system, theclimate statusdi spl ay
ap pea rsfor appro xima telythree secondsat
the botto mof the scre enon the multime dia
sy stem displ ay;see DigitalOpe rator'sMan-
ua l.You willsee thecurr entsetti ngsofthe
var ious climate control functions.
DY NAMI CSE LECT butto n(e xc ept
Merc edes-AMG vehic les) You
canchoo sebetw eenvarious drive pro -
gra ms with the DYNAM ICSELECT button
(Y page 132 ).
If yo uha ve selected drive pro gramE:
R wh en hea ting, theelectri calhea terboo ster
is dea ctiva tedand inthe warming -upphase
hea tou tpu tis red uce d
R the rearwi ndow defroste rrunni ngtime is
red uce d
Depe nding on the confi gurati on, climate set-
tings mayalso be influenced inthe drive pro -
gra mI.
If yo uha ve selected drive pro gramCor S,cli-
mate settingsarenot influenced.
EC Ostart/s topfunc tion Duri
ngautoma ticengi neswi tch-off, thecli-
mate control system onlyoperate sat a
red uce dcap acity. Ifyo ureq uire the fullcli -
mate control outpu t,yo ucan switch offthe
ECO start/stop functionbypre ssing the ECO
bu tton (Ypage 130 ). Ove
rviewof climate control systems
115Climate control

ual.
You willsee thecur ren tset tings ofthe
var ious climatecontrol function s.
DYNAM ICSELECT button (excep t
Mer cedes -AMGvehi cles) You
canchoos ebet ween various drivepro -
gram swit hth eDYN AMICSELECT but ton
(Y page 132).
If you have selected driv epro gram E:
R when heating,th eelec trical heat erboos ter
is deac tivate dand inthewarm ing-up phase
heat output isred uced
R therear wind owdefrosterrun ningtim eis
red uced
De pen dingon theco nfigura tion,clim ateset-
tin gs may alsobeinfluen ced inthedriv epro -
gram I.
If you have selected driv epro gram Cor S,cli-
mat eset tings are notinf luen ced.
ECO star t/s top funct ion Dur
ing auto maticen gin eswit ch-off,th ecli-
mat eco ntrol syst emonlyoper atesat a
red uced capac ity.Ifyou require thefull cli-
mat eco ntrol out put ,you can switchoff the
ECO start /stopfun ction bypre ssin gth eECO
but ton(Y page 130). Ope
ratin gth eclim atecont rolsys-
tem s Activ
ating/d eactivatingclim atecon-
tr ol
Gener alnot es When
theclim atecontrol isswit ched off,th e
air supply andaircirculat ionare also switched
off .The wind owscould fog up.Ther efore,
swit choff clim atecontrol onlybrie fly
Air- cond itioning system X
Turn theSm artKey toposi tion0048 intheign i-
tio nloc k(Y page 125).
X To swit chon: turnco ntrol 0083 clockwise to
th edesir edposi tion(ex cep tposi tion0)
(Y page 114).
X To swit choff:tur nco ntrol 0083 count er-
clo ckwise toposi tion0 (Y page 114). Dua
l-zone autom atic clim atecont rol X
Turn theSm artKey toposi tion0048 intheign i-
tio nloc k(Y page 125).
X To act ivate: pressthe0058 button.
The indicat orlamp inthe0058 buttonlight s
up. Airflow andairdist ribut ionare setto
auto maticmod e.
or
X Pre ssthe0078 button.
The indicat orlamp inthe0078 buttongoes
out .The previous lysele cted settings are
res tored .
X To dea ctiv ate: pre ssthe0078 button.
The indicat orlamp inthe0078 buttonlight s
up.
i Dual-
zone auto maticclim atecontrol:
swit chon clim atecontrol prim arily usingth e
0058 button. Swit
ching cooling withairdeh umidi-
fica tion on/off
Gener alnot es If
you deac tivate the"Coolin gwit hair- dehu-
midi ficatio n"fun ction ,th eair inside theveh icle
will notbe cooled. Theairinside theveh icle
will also notbe dehum idified. Thewind owscan
fog upmor equic kly.Ther efore, onlydeac tivate
th e"Coolin gwit hair- dehum idificat ion"fun c-
tio nbrie fly.
The "Coolin gwit hair dehum idificat ion"fun c-
tio nis on lyavailab lewhen theen gin eis run -
nin g.The airinside theveh icle isco oled and
dehum idified according tothete mpe rature
sele cted.
Con densation may dripfrom theunde rside of
th eveh icle when itis in coolin gmod e.This is
no rm aland nota sign that there isamalf unc-
tio n.
Activ ating/d eactivating X
Pre ssthe005A button.
The indicat orlamp inthe005A buttonlight s
up orgoes out.
The indicat orlamp inthebut tonind icat es
th at theres pec tivefun ction isact ivat ed. The
"Coolin gwit hair dehum idificat ion"fun ction
has adelayed switch-off feat ure. 118
Op
era tingth eclim atecontr olsyst emsClim atecontr ol