2021 MERCEDES-BENZ GLS tires

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

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0077 Please Correct TirePres-
sure *T
hetirepr essur eis toolow in at leas tone ofthetir es, orthedif fere nce intirepr ess urebe twee nth eindividual
wheels istoogr eat. #
Chec kth etir epr essur eand add air,if neces sary. #
When thetir epr essur eis cor rect, restar tth etir epr essur emonit oring system (/ page362).
0077
Warning TireMalfunct ion *T
hetirepr essur ein one ormor etir es has dropped suddenly .The wheel position willbedispla yed. &
WARNIN GRisk ofan acci dent from drivi ng with aflat tire
R The tires can overheat and cause afire .
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. #
Donotdr ive on withaflat tire. #
Obse rveth eno teson flat tires. No
teson flat tires (/ page33 8). #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir es.
Tires Overheat ed *A
tle as tone tireisov erheating. Theaffect ed tires aredispl ayed inred. At temp eratur esclose tothelimit value, the
tir es aredisp laye din yello w. Dis
play messa gesand warning/ indic ator lam ps 45
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions &
WARNIN GRisk ofan acci dent from drivi ng with ove rheat edtires
Ov erheat edtires can burst. #
Reduce speed sothat thetir es cool down. Dec
rease Speed *A
tle as tone tireisov erheating. Theaffect ed tires aredispl ayed inred. At temp eratur esclose tothelimit value, the
tir es aredisp laye din yello w. &
WARNIN GRisk ofan acci dent from drivi ng with ove rheat edtires
Ov erheat edtires can burst. #
Reduce speed sothat thetir es cool down. Engine
oil Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilLevel
(Add 1quart) *D
ispla ymess ageonl yfo rcer tainengi nes:
The engineoille ve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. 458
Display mess ages and warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
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. 0077
Ti re pressur emonit oring
sy stem warning lam plight s
up The
yello wtirepr essur emon itor ing system warning lam p(pr essur eloss/ malfun ction) islit.
*The tirepr essur emon itor ing system has detected tirepr ess urelos sin at leas tone ofthetir es. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
R The tires can burst.
R The tires canwearexc essiv elyand/or unevenly .
R The drivi ng 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 eand thetir es. Displa
ymessag esand warning/ indic ator lam ps 47
3

D
Dash board
see Cockpit
Data acquisition
Ve hicle ................................................... 31
Data storage
Ele ctroni ccontr oluni ts ............ ..............31
Online services ...................................... 33
Ve hicle ............................................. ...... 31
Da ytim eru nning lampmode
see Daytime running lights
Da ytime running lights ........................... 147
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 147
Deact ivat ing theala rm (ATA ).................... 91
Deale rship
see Qualified speci alist wo rkshop
Dec laration ofconf ormity
Wi reless vehicle component s................2 7
Decor ative fo il(cleaning instructions)
.. .............. ...................................................3 32
De finitions (tiresand loading) ................3 72 Des
tinat ion entry<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 295
Ent ering aPOI oraddress <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 295
De tectin ginat tentiv eness
see ATTENTION ASSIST
Diagnos ticsconnec tion............................2 7
Digita lOp erator' sMa nua l........................ 20
Dingh yto wing
see Tow- bar system
DIRECT SELECT leve r............ ...................185
Eng aging drive po sitio n............. ........... 187
Eng aging neu tral ............. .....................186
Eng aging park position .................. ...... 186
Eng aging park position automatic ally .. 186
Eng aging reve rsege ar .................... .....1 86
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>185
Disp lay(Car e).......................................... 334
Disp lay(MB UXmultim edi asy stem)
Hom escr een .......................................2 82
Di spla y(multime diasystem) .................2 83
Oper ating ............................................283
Di spla y(on -boar dco mp uter)
Displ ayson themultifunc tiondispla y.. 278 Disp
laymes sage.....................................4 08
Ca lling up (on-boa rdcom puter) ..... ......4 08
No tes .................................................. 408
Displa ymessag es
00B2 ---mp h.....................................4 46
ç ---mp h.....................................4 44
003D 12VBatt erySee Oper ator's
Manual ................................................ 452
00D7 48VBatt erySee Oper ator's
Manual ................................................ 454
: ActiveHea dlamps Inoperati ve .... 415
é ATTENTION ASSISTInoper ative
... ..........................................................4 33
é ATTENTION ASSIST: Take a
Br ea k! <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>........433
: Automatic HeadlampMode
Inoper ative..... ...................................... 414
0027 CheckBr ak eFluid Level.............4 32
0026 CheckBrak ePa ds See Oper a‐
to r's Manua l..... ................................... 433 Inde
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1

ESP
®
(Electr onicStabil ityProg ram) ...... 203
Ac tivati ng/d eactiv ating ........... ........... .205
Fu nctio n/no tes ................................... 203
Ext endable running boards....................... 74
Ext enda blestep
see Running boards
Ex terior light ing
see Light s
Ext erior light ing(Car e)...........................3 32
Ext erior mir rors <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 155, 156
Anti-glar emod e(a ut oma tic) ................ 156
Au tomatic mirrorfo lding function ........ 157
Fo lding in/out .....................................1 55
Oper ating thememor yfunc tion ........... 115
Pa rking posit ion...................................1 56
Se tting ................................................. 155 F
Fa tig ue detection
see ATTENTION ASSIST
Fi rs t-aid kit(sof tsi ded) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> ....337
Fl aco n
Inse rting/ remo ving ............................. 163 Flat
tire .....................................................3 38
Cha nging awhe el....... ..................... .... 379
MOExt ended tires ................................ 338
No tes .................................................. 338
TIREFIT kit...........................................3 39
Flat towing
see Tow- bar system
Floor mats................................................ 141
Fo ilco vering
Ra dar and ultrasonic sensors.............. 201
Fo lding table ............................................ 122
Fr ag rance
see Perfume atomiz er
Fr ee driving mode
St artin g...............................................2 43
Fr ee sof tware ............................................ 34
Fr eq uencies
Tw o-w ayradio ................................ ...... 391
Fr ont airbag (driver ,fr ont passeng er).....4 2
Fr ont passeng erseat ................................ 96
Ad jus ting from thedr iver's seat ...... ...... 96 Ad
jus ting from there ar passe nger
com partment .........................................9 7
Fr ont passeng erseat
see Seat
Fu el ...........................................................3 96
Ad ditiv es.............................................3 96
E1 0 ....... ............................................... 395
Fu elreser ve <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 396
Ga sol ine <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 395
Qua lity (gas oline )<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 395
Re fuel ing .............................................. 191
Sul fur cont ent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 395
Ta nk cont ent <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ...............396
Fu nction seat
see Door controlpanel
Fu nction seat(rear passeng ercom‐
par tment)
see Seat (rear passeng ercom partmen t)
Fu ses ........................................................ 353
Bef orere placing afuse ........................ 353
Dashboar dfuse box............................ 355
Fu se assignment diagram...................3 53
Fu se boxin thecar gocom partmen t....3 55
Fu se boxin theengine compartmen t.. 354 488
Index

Kic
kdow n......... ........................................1 88
Using .............. .....................................188
Knee airbag ...... .......................................... 42 L
Label ing(tires)
see Tire labeling
Lam p
see Interior light ing
Lam ps(Ins trum ent Displa y)
see Warning/ indic ator lam ps
Lane detection (automatic )
se eAc tiveLa ne Keeping Assist
Lane Keeping Assist
see ActiveLa ne Keeping Assist
LA TC H-type (ISOFI X)child seat secur‐
ing system
In stallin g................................................ 57
Leg rest
At tach ing/ remo ving theadditional
cushion ................................................ 100
Le velcontr olsystem
see AIRMA TIC see
E-AC TIVE BODY CONTR OL
Light switch
Ov ervie w ........................................ .....1 43
Lig hting
see Interior lighting
see Ligh ts
Lig hts ........................................................ 143
Ad aptiveHig hbeam Assis t.............. .....1 46
Au tomatic driving lights..... .................. 144
Comb inationswit ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 144
Cor nering light <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ...........146
Haza rdwa rning light s.................... ...... 145
High beam............ ...............................144
High -beamflasher ...............................1 44
Light switch..... .............................. ......1 43
Lo w-beam headlam ps.................... .....1 43
Pa rking light s.................................. .....1 43
Re ar foglam p................................. ..... 143
Re sponsibili tyforlig hting systems ...... 143
Se tting theex terior lighting switch-
of fdela ytime ................................. ...... 147
St andi nglight s................................ .....1 43
Switc hingthesur round lighting
on /of f.................................................1 48
Tu rn signal light................................... 144 Limit
edWa rranty
Ve hicle ................................................... 31
Limit ingtheopenin gang le(tailg ate) ...... 80
Liv eTr af fic Inf orma tion
Swit ching thetra ffic inf ormatio ndis‐
pla yon ................................................ 298
Load index(tir es) .................................... 370
Load protection net
At tach ing .............................................1 30
Lo ad-bear ingcapaci ty(tir es) .................370
Load ing.....................................................1 31
Bag hook<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>....131
Car gotie-do wn rings <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ....131
Coat hook ............................................ 132
Def initio ns ............ ...............................372
No tes ................................................... 119
Ro oflugg agera ck <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 133
Load ingguid elines ...................................1 19
Load inginforma tion table ...................... 363
Load s
Sec uring ...............................................1 19 Inde
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1

Wi
reless chargin g(rear passe nger
com partment )...................................... 140
Mobi lephone
see Smar tphone integr ation ®
see Telephon e
Model series
see Vehicle identif ication plate
MOExt ended tires ................................... 338
Multifunction camera
RO AD SUR FACE SCAN ........................ 239
Mu ltifu nct ion displa y
Ov ervie wof thedispla ys<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 278
Multifunc tionsteer ing wheel
Ov ervie wof butt ons .............................2 76
Multifunc tionsteer ing wheel
see Steer ing wheel
Mult imedia system
Ac tivati ng/d eactiv ating DSR ........... .....215
Collis iondetection (parked vehicle) ..... 200
Ext ending/r etra cting theru nning
bo ards <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ..75
Multimedia system
see Display(mult imedia system) see
MBUX Interior Assis tant (mu lti‐
med iasystem)
see MBUX multimedia system
see Touc hpad N
Na vig ation
No tes .................................................. 292
Ov ervie w .......................................... ... 294
Sho wing/hiding themenu ...................2 93
Switc hingon....... ................................ 293
Na vig ation
see Destination entry
see Map
see Route
Ne utr al
Inser ting.......................................... .... 186
No tes ........................................................ 172
Op timized acceleration........................ 172
No teson breaking-in ane wve hicl e...... .171 O
Occupant safety
see Airbag see
Automatic front pass engerfront
airb agshut off
see Automatic measu resaf te ran accide nt
see Pets intheve hicle
see Post-col lisi on brak e
see PRE-S AFE ®
(antici patory occu‐
pant protect ion)
see PRE-S AFE®
Im pulse Side
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus)
see Restra int system
see Seat belt
Of f-road Assis t
Se tting .................................................2 43
Of f-road drivi ng ....... ................................. 176
Of f-road driving
see Off-road driving
Of f-road ESP®
(Electr onicStabil ity
Pr og ram)
Swi tching on/o ff<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 205
Oi l
see Engine oil 49
4
Inde x