2021 MERCEDES-BENZ GLS Owners Manual

Axle
load Mod
el Axleload
All mod els 4078 .5 lbs(1 850 kg) Mer
cede s‑Maybac hA xleload
All models Te
ch nica lda ta 40
7

Disp
laymes sages Int
roducti on No
tesabout displaymessag es
Displa ymessag esappear onthemultifunc tion
displa y.
Dis play messa geswit hgr aphic symbols aresim‐
plif ied intheOper ator's Manual andmaydif fer
fr om thesymbols onthemultifunc tiondispla y.
The multifunct iondispla ysho wshigh-pr iority dis‐
pla ymessag esinred. Cer tain displa ymess ages
ar eacc ompanied byawa rning tone.
Pl ea se act inacco rdanc ewit hth edispla ymes‐
sag esand follo wtheadditional notesin the
Oper ator's Manual .
Fo rsome display messa ges,asymbol willalso
be sho wn:
R Õ Further information
R 00A4 Hidedispla ymessag e
Wi th thelef t-hand Touc hCon trol, youcan select
th ere spectiv esymbol byswiping tothelef tor
ri ght. Press theÕ symbol tosho wfur ther infor‐ mation
onthemultifunc tiondispla y.Press the
00A4 symbol tohide thedispla ymessag e.
Yo ucan hide low- prior ity displa ymessag esby
pr essing theP buttonorthelef t-hand Touc h
Con trol. The displ aymessa geswill then be
st or ed inthemessag ememor y.
Re ctify thecause ofadispla ymessag eas
qu ickl yas possible .
High- prior ity displa ymess ages can notbe hid‐
den. Themultif unction displa ysho wsthese dis‐
pla ymessag escon tinuousl yuntil thecause of
th edispla ymessag ehas been rectif ied.
Cal ling up save ddispl aymes sages
On-b oard com puter:
4 Service5
1Mes sage
If th er ear eno displa ymessag es,NoMessages
will appear onthemultifunc tiondispla y. #
Scrollth ro ugh thedispla ymessag esby swip‐
ing upw ards ordown wardson thelef t-hand
To uc hCon trol. #
Toexitth emess agemem ory: press the
P button. 408
Displa ymessag esand warning/ indic ator lam ps

Occupant
safety Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0075 SRS Malfunct ionServic e
Required *T
herestra int system ismalfunct ioning(/page37 ). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Front LeftMalfunction
Service Required(exa mp le) *T
hecor responding restra int system ismalfunct ioning(/page37 ). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Left Side Curtain Airbag
Malfunction Service
Requ ired(exa mp le) *T
hecor responding windowcur tain airbag ismalfun ctionin g(/ page37 ). &
WARNIN GRisk ofinju ryor fata linj urydue toamalf unctionin thewindo wcur tain airbag
The windo wcur tain airbag mightbetrigg ered unin tentio nallyor might notbe trigg ered atall intheev ent ofan
acciden t. #
Have thewindo wcur tain airbag checkedand repair edimmediat elyat aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 409

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Fron tPassenger AirbagDis-
abled SeeOperator' sMan-
ual *T
hefront passeng erairbag hasbeen disabl edeve nth ough anadult oraper son ofadult statur eis on thefront
passeng erseat. Ifadditional forc es areapplied totheseat, thewe ight thesy stem detects maybe toolow. &
WARNIN GRisk ofinju ryor fata linj urydue toadisable dfron tpasse nger airbag
If th efront passeng erairbag isdisabled, thefront passeng erairbag willnotbe deplo yedin theev ent ofan acci‐
dent andcann otper form itsintended protect ive func tion.
A per son inthefront passeng erseat could then, forex am ple, com eint ocon tact with theve hicle's interior ,
especially ifth eper son issitt ing tooclose tothecoc kpit. #
Mak esur e,bo th bef oreand during thejour ney,that thest atus ofthefront passeng erairbag iscor rect. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Checkth est atus oftheaut omatic front passeng erairbag actuation (/page47 ). #
Ifnec essar y,consu ltaqu alif ied spec ialistwo rkshop immediat ely.
Front Passeng erAirb ag
Enabl edSee Operator 's
Manu al *T
hefront passeng erairbag isenabled whiletheve hicle isin mo tion:
R evenwh en ach ild, aper son ofsmaller statur eor an obj ect weighin gless than thesy stem weight thre shold is
locat edon thefront passeng erseat
R even when thefront passeng erseat isno toccupied
The system mayde tect obje ctsorforc es that areaddin gto thewe ight applied totheseat. 41
0
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions &
WARNIN GRisk ofinju ryor fata linj urywhen usingach ild restra int system while thefront passeng erairbag
is enabled
If yo usec ureach ild inach ild restra int system onthefront passeng erseat andthefront passeng erairbag is
enabled, thefront passeng erairbag maydeplo yin theeve ntofan acci dent.
The child could bestru ck bytheairbag. #
Both bef oreand during thejour ney,ensur eth at thest atus ofthefront passeng erairbag iscor rect.
NEVER useach ild restra int system facing tothere ar on aseat withan ACTIV ATED FRONT AIRBAG. DEATHor
SERIOU SINJU RYtothech ild can occur. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Checkth est atus oftheaut omatic front passeng erairbag actuation (/page47 ). #
Ifnec essar y,consu ltaqu alif ied spec ialistwo rkshop immediat ely.
PRE-S AFEInoperat iveSee
Operator's Manual *
The PRE‑S AFE®
funct ionsaremalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
PRE-SA FEImpulse Side
Inoperative SeeOperator's
Manual *
The PRE‑S AFE®
Im pulse Sidesystem ismalfunct ioningorinoper ativeaf te rha ving alread ybeen trigg ered. #
Consu ltaqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 41
1

Smar
tKey Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Á Obtain aNew Key *T
heSmar tKey nee dstobe replaced. #
Consult aqu alif ied spec ialistwo rkshop.
Á Repla ceKey Battery *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(/ page69).
Á Key NotDetected(whit e
displa ymessag e) *T
heSmar tKey iscur rentl yund etect 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 e16 9). 41
2
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Á Key NotDetected (red dis‐
pla ymessag e) *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 trally lockth 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 e16 9).
Pl ac ethe Key inthe
Ma rked SpaceSee Opera -
tor' sMa nua l *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 e16 9).
Á Don't ForgetYour Key *A
warning tone willal so sou nd. Thismes sage reminds youto take your Sm artK ey wit hyo uwhen youlea vethe
ve hicle. Displa
ymessag esand warning/ indic ator lam ps 41
3

Light
s Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
: 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 lightsour ces: thedispla ymessag efo rth ecor responding lightappea rsonl ywhen allthelight- emitt ing
diodes inthelight arefa ulty .
: Malf unctionSee Oper a-
to r’s Man ual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
: Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop. 41
4
Display messa gesand warning/ indic ator lam ps