2021 MERCEDES-BENZ GLS SUV sensor

In
addi tion, thetir egr ip isgreatl yre duced at
a low outside temp eratur eand tireru nning
te mp eratur e. #
ActivateESP ®
and adaptyo ur drivin g
st yle accor dingly. #
Use M+S tires atoutside temp eratur es
belo w50 °F(10 °C). #
Onlyuse thetir es forth eir intended pur‐
pose. Obser
vethefo llo wing when selecting,ins talling
and replacing tires:
R Further mor e,theuse ofcer tain tiretypes in
cer tain regions andareas ofoper ation can
be highl ybenef icial.
R Onlyuse tires and wheels ofthesame type
(summer tires, wint ertires, MOEx tende d
tir es) and thesame make.
R Onlyins tallwheels ofthesame sizeonone
axle (leftand right).
It is onl yper missible toins talla dif fere nt
wh eelsi ze intheeve ntofaflat tirein order
to drive to thespecialis two rkshop. R
Vehicl eswith atir epr ess uremonit oring
sy stem: Allinstalled wheels mustbe equip‐
ped withfunc tioningsensorsfo rth etir e
pr essur emonit oring system.
R Attemp eratur esbelo w45 °F(7°C) use win‐
te rtir es orall-seaso ntir es mar kedM+S for
all wheels .
Wi nter tires bearing the004D snowflak esym‐
bol inaddition totheM+S marking prov ide
th ebes tpossible grip inwintr yro ad con di‐
tio ns.
R ForM+S tires, onlyuse tires wit hth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tires installed.
If th etir e's maximum speedisbelo wthat of
th eve hicle, this mus tbe indic ated byan
appr opriatelabel inthedr iver's field of
vision.
R Break inne wtires atmoder atespeeds for
th efirs t60 miles(1 00 km) .
R Replace thetir es afte rsix yearsat thelat est,
re ga rdless ofwe ar. R
Wh enreplac ingwith tires that donotfe a‐
tur eru n-flat charact eristics :ve hicles with
MOExt ended tires areno teq uipped witha
TIREFIT kitatthefa ct or y. Eq uip th eve hicle
wit haTIREFIT kitafte rre placing withtir es
th at do notfe atur eru n-f latch aract eristic s,
e.g .wint ertires.
Fo rmor einf ormation onwhee lsand tires, con‐
ta ct aqu alif ied spec ialistwo rkshop.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page35 7)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page36 3)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e37 0)
R Tire pressur eta ble (/ page359 )
R Noteson theemer gency sparewheel
(/ page38 5) Wheels
andtires 37
7

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

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
ç
00B0
00C7
¸ Currently Unavailable
Radar SensorsDirty *T
heradar sensor system ismalfunct ioning.Possible causes:
R dirton thesensor s
R hea vyrain or sno w
R extende dcou ntrydr ivi ng without other traf fic, e.g. inthedeser t
Dr iving systems anddriving safetysy stems maybe malfunct ioningortemp orarily una vailable.
Onc eth ecause ofthepr oblem isno long erpresent ,th edr iving systems anddriving safetysy stems willbeavailable
ag ain.
If th edispla ymessag edoes notdisappear : #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions. #
Clea nallsenso rs(/ pag e332) . #
Restar tth eengine. 44
2
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Connec ta suit able charge rapp rove dfo rMer cedes-Benz withsuf ficie ntcharge output tothejum p-start connec‐
tion pointofthe12 Vbatt ery(/ page34 7).
The 48Vbatt eryis ch arge dvia thevo ltag econ verter intheve hicle.
Engin eCan Now BeStart ed *T
he48 Vbatt eryhas been charge daut omatic allyviathevo ltag econ verter . #
Startth eengine anddrive th eve hicle fora whi leto charge the12 Vbatt eryand the48 Vbatt ery. Ti
re pres sur emoni tor Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Tire Press. MonitorCur-
rent lyUnavailable *T
her eis int erfere nce from apo we rful radio signal source.Asare sult, nosignals from thetir epr essur esensor are
being recei ved. The tirepr essur emonit oristemp orarily una vailable. #
Drive on.
The tirepr essur emon itor will restar taut omat icallyas soon asthecause hasbeen rectif ied.
Tir ePre ss. Moni torInope ra-
tive *T
hetirepr essur emonit orismalfunctionin g. &
WARNIN GThe reisarisk ofan accident ifth etir epr essur emonit oring system ismalfunct ioning
The tirepr essur emonit oring system cann otissue awa rning ifth er eis pressur eloss inone ormor eof thetir es.
Ti re swit hinsuf ficie nttirepr ess urema yim pa irth edr iving charact eristic sas wellas steer ing and braking. #
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 455

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Tire Pressure MonitorInop-
erative NoWheel Sensors *T
hewheels installed donotha ve suit able tirepr essur esensor s.The tirepr essur emonit orisdeactiv ated. #
Installwheels withsuit able tirepr essur esen sors.
0077 Wheel Sensor(s )Missin g *T
her eis no signal from thetir epr essur esensor ofone ormor ewheels. Nopressur eva lue isdispla yedfo rth eaf fec‐
te dtir e. #
Have thefa ulty tirepr ess uresen sor replaced ataqu alif ied spec ialistwo rkshop.
0077 Check Tires *T
hetirepr essur ein one ormor etir es has dropped significantl y.The wheel position willbedispla yed. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
R The tires can burst.
R The tires can wearexc essiv elyand/or unevenly.
R The driving charact eristic sas wellas thesteer ing and braking maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ures. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur e(/ page35 7) and thetir es. 456
Displa ymessag esand warning/ indic ator lam ps

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p The
redcoolant warning lam pis lit while theengine isrunning .
*P oss ible cau ses:
R The temp eratur esensor ismalfunct ioning
R The coolant leve lis toolow
R The airsupply tothera diat orisobs truct ed
R The radiat orfanis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. #
Pull overand stop theve hicle safely and switc hof fth eengine, paying attent ion toroad and traffic condi tions.Do
no tcontinu edr ivi ng. #
Notethemessag eson themultifunc tiondispla y.
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: 46
4
Displa ymessag esand warning/ indic ator lam ps

Pr
otect ion ..............................................4 3
Sid eairba g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 42
Wi ndo wcur tain airbag ...........................4 2
Air flow
Se tting ................ ............................ .....1 59
AI RMA TIC..................... ............................ 229
Se tting ................................................. 231
Suspe nsion .......................................... 229
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system)
All-wheel drive
see 4MA TIC
Ambient lighting
Se tting (multimedia system) ................1 49
Andr oidAuto
see Smar tphone integr ation ®
Animals Pets intheve hicle ................................. 66
Anti-loc kbr aking system
see ABS(An ti-loc kBraking System) Anti-skid
chains
see Snowch ains
Anti -thef tpr otection
Imm obiliz er............................................ 90
Anticip ator yoccupa ntprotection
see PRE- SAFE®
(anticip ator yoccu‐
pa nt protect ion)
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus)
Apple CarPla y
see Smar tphon eint egr ation ®
Assis tance systems
see Drivin gsaf etysy stem
ASS YSTPL US <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>321
Batt erydi sconne ctionpe riods .............3 22
Displ aying theser vice duedate........... 321
Fu nctio n/no tes ................................... 321
Re gular maint enance work <0011001100110011001100110011001100110011001100110011001100110011
00110011> 321
Spec ialser vice requ iremen ts.............. 321
ATA (anti-thef tala rm system) .................. 90
Ac tivati ng/d eactiv ating theint erior
mo tion sensor ....................................... 92 Ar
ming/ disarming theto w- aw ay
alar m.....................................................9 2
Dea ctivating thealar m........................... 91
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 90
Fu nctio nof theint erior motion sensor ..92
The tow- aw ay alar mfun ction .................9 1
AT TENTI ONASSIST <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 261, 26 2
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>261
Se tting <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 262
Sy stem limit ations ...............................2 61
At tention assistant
see ATTENTION ASSIST
Au thorized Mercedes- BenzCenter
see Qualif iedspec ialistwo rkshop
Au thorized workshop
see Qualif iedspecialis two rkshop
Au tomatic carwa sh mode
Ac tivati ng ........... ................................. 330
Au tomatic distanc eco ntr ol
se eAc tiveDis tance AssistDIS TRONI C
Au tomatic drivin glights ........... ..............144
Au tomatic engine star t(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> ........179 47
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Br
ak efo rc edis tribut ion
EB D(elec tronic brak efo rc edis tribu‐
tion )..................................................... 207
Br ak es
ABS (Anti-loc kBr aking System) ........... 203
Ac tiveBr ak eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 207
BA S(Br akeAssi stSystem) .................. 203
Dr iving tips.......................................... 173
EBD (electr oni cbr ak efo rc edis tribu‐
tion )........................ ............................. 207
HOLD function .....................................2 28
Limi tedbr aking effect (sa lt-tr eated
ro ads) .................................................. 173
Ne w/r epla ced brak epad s/brake
discs ........................ ............................ 171
No teson breaking-in ane wvehicle ..... 171
Po st-col lisi on brak e <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> .....51
Br akin gass ista nc e
see BAS(Br akeAssi stSystem)
Br eakdo wn
Changing awheel ................................ 379
Ov ervie wof thehelp functions...... ........ 18
Ro adside Assis tance <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .....24
To w- star tin g.................................... .... 353
To wing away <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 350Tr
ans portingth eve hicle ......................3 51
Br eak down
see Flattir e
Butt ons
St eer ing wheel .....................................2 76 C
Calls Mer cedesme ...................................... 304
Cam era .....................................................2 39
Camer a
see 360° Camer a
see Rear vie wcam era
Car key
see Smar tKey
Car wash
see Care
Car wash (car e)....................................... 328
Car -to-X -Commu nication
Displa yinghazar dwa rnings ............ .....2 98
Car e....... ...................................................334
Air -water duct ......................................328 Au
tomatic carwash ............................. 328
Car pet.................................................3 34
Decor ativefo il .....................................3 32
Displ ay<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 334
Ext eriorlighti ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 332
Hea dline r<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 334
Pa int wo rk <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 331
Pl as tic trim <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 334
Po we rwa sher ...................................... 330
Re alwo od/tr imelements ...................3 34
Re ar vie wcam era ................................ 332
Ru nning boards <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ...........332
Sea tbe lts <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>334
Sea tco ver..... ...................................... 334
Sensor s..... .......................................... 332
Sur round viewcam era ........................ 332
Ta ilpipes .............................................. 332
Tr ailer hitch <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 332
Wa shing byhand ................................. 331
Wheels/r ims....................................... 332
Wi ndo ws <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 332
Wi per blades .......................................3 32
Car gocomp artment cover
Ext end ing/retra cting <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 128
No tes ................................................... 128 47
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