warning MERCEDES-BENZ GLS 2020 Workshop Manual

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Á Replace KeyBattery *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(/ page71 ).
Á
Ke yNot Detected (whit e
disp lay mes sage) *T
heSmar tKey iscur rently undetect ed. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Ifth eSmar tKey isstill no tre cogni zed,place itin themar kedspace forst ar tin gwit hth eSmar tKey
( / pag e18 2).
Á Ke yNo tDete cted (red dis‐
pl ay messa ge) *T
heSmar tKey canno tbe detected and mayno long erbe intheve hicle.
The Smar tKey isno long erintheve hicle andyouswit choffth eengine:
R Youcan nolongerst ar tth eengine.
R Youcan notcen trall yloc kth eve hicle. #
Ensur eth at theSmar tKey isin theve hicle.
If th eSmar tKey detection functi onhasa mal functi ondueto ast ro ng radio signal source: #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
PlacetheSmar tKey inthemar kedspace forst ar tin gth eengine withth eSmar tKey (/ pag e18 2). 57
2
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Place theKey inthe
Marked SpaceSeeOpera-
tor's Manual *S
mar tKey detection ismal functi oning. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Place theSmar tKey inthemar kedspace forst ar tin gth eengine withth eSmar tKey (/ pag e18 2).
Á Don't ForgetYour Key *A
warning tone also sou nds. Thismes sage reminds youto take your keywit hyo uwhen youlea vetheve hicle. Lights
Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
0049 Check LeftLow
Beam (exa mp le) *T
hecor responding lightsourceisfaulty . #
Drive on car efull y. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
% LED lightbul bs: thedispla ymessag efo rth ecor responding lampappea rsonl ywhen allthelight- emitt ingdiodes
in thelam par efa ulty . Dis
playmes sagesand warning/ indic ator lam ps 57
3

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 Malfunct ionSee Opera-
tor’s Manual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Act ive Headla mpsInopera-
tive *T
heactiv eheadla mpsar emalfunctioning. #
Consult aqu alif ied spec ialistwo rkshop.
0049 Switch OnHeadla mps *Y
ouaredr iving without low- beam headlam ps. #
Turn thelight switc hto the0058 or0058 position . 57
4
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0049 Switc hOff Lights *Y
ouarelea ving theve hicle andthelights arest ill switc hedon. #
Turn thelight switc hto the0058 position .
0049 Int ell. Light System Inoper-
ative *T
heIntellig entLight System isfaulty .The light ingsystem continues tofunction proper lywit hou tth efunc tionsof
th eInt ellig entLight System. #
Consult aqu alif ied spec ialistwo rkshop.
Adaptive Highbeam Assist
Currently UnavailableSee
Operator's Manual *A
dap tiveHighbeam Assistis temp orarily una vailable.
The system limits have been reac hed (/page15 8). #
Drive on.
Once thecause ofthepr oblem isno long erpresent ,th esy stem will beavailable again. TheAdap tiveHig hbeam
As sist Now Available displaymes sagewill appear .
Adap tiveHig hbeam Assist
In oper ative *A
daptiveHighbeam Assistis malfunc tioning. #
Consult aqu alif ied spec ialistwo rkshop.
Hazard Warning Flashers
Malfunctioning *T
hehazar dwa rning lam pswitc his malfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 57
5

Ve
hicl e Dis
playmessag es
Possible causes/conseq uencesand0050 0050
Solutions
Update Successfully Com-
pleted *I
nstallation ofthesof twareupdat ehas been success fullycompleted(/ page37 7).
Up dat eFa iledSoftw are
Re mai nsUncha nged *A
ner ro roccur reddur ing theins tallation ofthesof twareupdat e(/ page37 7).
Th epr ev ious softwareve rsion remains inpla ce.
Upda teFail ed *A
ner ro roccur reddur ing theins tallation ofthesof twareupdat e(/ page37 7).
Ma keaMer cedesme call viatheove rhead control panel (/page44 2).
0072
Vehi cleRea dytoDrive
Switch theIgnitio nOff
Before Exiting *Y
ouarelea ving theve hicle when itis in are ady -to- dr ive st at e. #
When youlea vetheve hicle, switchof fth eignition ,secur eth eve hicle agains tro lling away and taketh eSmar t‐
Ke ywit hyo u. #
Ifyo udo notlea vetheve hicle, switchof fth eelectr icalconsumer s,e.g. theseat heating. Other wise, the12 V
batt eryma ydisc hargeand itwill then be possible tostar tth eve hicle onlywit hth eaid ofasecon dbatt ery
(s ta rting assis tance) .
Ru nning BoardsNot Retrac -
ted PayAttentio nto
Excess Width ofVeh icle *M
ercedes- Maybac hve hicles: theru nning boards areno tre tract ed.
R The running boards canberetract edvia themultimedia system onlywhen theve hicle isstatio nary
(/ page79).
R The running boards andtheside skirtmus tbe free ofdir t,ice and snow.Other wise, they areunabl eto retract. #
Clea nth eru nning boards (/page 490). 57
6
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Repeat there tracti onoftheru nning boards (/page 78).
If th eru nning boards canno tbe retract edagain, cons ulta qu alif ied spec ialistwo rkshop. #
Ifth eru nning boards areno tre tract ed,ch eckth eex cess widthof theve hicle.
Running BoardNotExten-
ded *M
ercedes- Maybac hve hicles: theru nning boards areno tex tende d.
R The running boards extend only when theve hicle isstatio nary.
R The running boards andtheside skirtmus tbe free ofdir t,ice and snow.Other wise, they areunabl eto extend. #
Clea nth eru nning boards (/page 490). #
Repeat theex tensi on oftheru nning boards (/page 78).
If th eru nning boards failto extend again, consu ltaqu alif ied spec ialistwo rkshop. #
Ifth eru nning boards areno tex tende d,be particular lycar efu lwhe nget ting inor out.
Ù
Stee ringMa lfunctio n
Incre ased Physica lEffo rt
See Opera tor' sMa nua l *T
hepowe rst eer ing assis tance isma lfunctio ning. &
WARNIN GRisk ofan acci dent dueto altered steer ing charact eristic s
If th epo we rassi stanc eof thesteer ing fails par tiall yor com pletely,yo uwill need touse morefo rc eto steer . #
Ifsaf esteer ing ispossible, drive on car efully . #
Visit orconsult aqu alif ied spec ialistwo rkshop immediat ely. #
Ifsaf esteer ing ispossible, drive on car efully . #
Visit orconsult aqu alif ied spec ialistwo rkshop immediat ely. Dis
play messa gesand warning/ indic ator lam ps 57
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Ù St eering Malfunct ionStop
Immediately SeeOpera-
tor's Manual *T
hesteer ing ismalfunct ioning.Steer ing capability issignif icantlyim pair ed. &
WARNIN GRisk ofacci dent ifsteer ing capability isim pair ed
If th esteer ing does notfunc tion asintended, theve hicle's operating safetyis jeopar dized. #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.
Do notcontinu edr ivi ng und eranycir cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng und eranycir‐
cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop.
0051 *A
tle as tone door isop en. #
Close alldo ors.
0066 *T
hehood isopen. &
WARNIN GRisk ofacci dent ifth eengine hoodisunlatc hedwhile driving
An unloc kedengin ehood mayopen upwhen theve hicle isin mo tion andblockyo ur vie w. #
Neverunla tchth eengine hoodwhile driving. 57
8
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Beforeev erytrip, ensur eth at theengine hoodislatc hed. #
Stop theve hicle immediat ely,pa ying attention toroad and traf fic condi tions. #
Close thehood.
0065 *T
hetailg ateis open . &
DANG ER Risk ofexhaus tga spoisoning
Combus tionengines emitpoisonous exhaus tga ses suchas carbon monoxide.Exhaus tga ses can enterthe
ve hicle interior ifth eta ilg ateis open when theengine isrunning ,esp ecially ifth eve hicle isin mo tion. #
Alw aysswitc hof fth eengine beforeopening theta ilg ate. #
Neverdr ive wit hth eta ilg ateopen . #
Close theta ilg ate.
LOW RANGE OnlyWhen
Vehic leIsStation ary *O
neormor eshi fting con dition swe renotme t. #
Stop theve hicle. #
Eng ageneutr al005C. #
Repeat thege ar chang e.
LOW RANGEShift toPosi -
tio nN Briefly *O
neormor eshi fting con dition swe renotme t. #
Eng ageneu tral 005C. Disp
lay mes sage sand warning/ indic ator lam ps 57
9

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Repeat thege ar chang e.
LOW RANGENot inDrive
Pro gram "Sport" *Y
ouwill notbe able toselect theLO WRANGE off-r oad gear ifth edr ive pr ogr am C orB isswitc hedon.
The drive pr og ram ther efor eaut omaticall yswitc hestoA . #
Select theLO WRANGE off-r oad gear (/ page20 5).
LOW RANGEMalfun ction
To Park ,App lyBrake *T
hetransf ercase ismalfunctionin g. #
Donotshif tth etra nsf ercase. #
Use theelectr icpar king brak eto secur eth eve hicle agains tro lling away. #
Con sult aqu alif ied spec ialistwo rkshop.
LOW RANGE Shifting Can-
celed Please Reactivate *T
hetransf ercase didnotper form thege ar chang e. #
Repeat thege ar chang e. #
Ensur eall shif tingcon dition sar eme t(/ page20 5).
LOW RANGEMalfun ction *T
hetransf ercase ismalfunctionin g. #
Donotshif tth etra nsf ercase. #
Use theelectr icpar king brak eto secur eth eve hicle agains tro lling away. #
Con sult aqu alif ied spec ialistwo rkshop.
LOW RANGE StopApply
Parking Brake *T
hetransf ercase ismalfunctionin g. #
Stop theve hicle inaccor dance withth etra ffic con dition s. 580
Display mess ages and warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Appl yth eelectr icpar king brak e. #
Wher eneces sary,also secureth eve hicle agains tro lling away. #
Eng agepa rk position 005D.
LOW RANGE Max.Speed 6
mph *T
hemaximum speedof6mp h(1 0 km/h) forth ege ar chang ehas been exceed ed. #
Drive mor eslo wly . #
Repeat thege ar chang e.
LOW RANGEMax .Spe ed
25 mph *T
hemaximum speedof25 mph(4 0km/h) forth ege ar chang ehas been exceed ed. #
Drive mor eslo wly . #
Repeat thege ar chang e.
Gearbo xPro tection Limit
12 mph Disable LOW
RAN GE *T
heoiltemp eratur ein thetra nsf ercase istoohigh. #
Intheon- road posit ion,shif tto HIGH RANG E.
00B2
Che ckWa sher Fluid *T
hewasher fluid leve lin thewa sher fluid reser voirhas dropped belowtheminimum. #
Refill wa sher fluid (/ page48 2). Dis
playmes sagesand warning/ indic ator lam ps 58
1