2021 MERCEDES-BENZ GLS SUV radio

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Á
Key not detected (red dis-
play message) *T
hekey cann otbe de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you switch o. theve hicle:
R You can no longer start theve hicle.
R You cannot centrally lock theve hicle. #
Ensu rethat theke y is in theve hicle.
If th eke y de tection function has a malfunction due toa st rong radio signal source: #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Place theke y in the slot for starting the engine with theke y (/ page 192).
Á Key being initialised Please
wait *T
hevehicle is processing in order to teach in the new key. #
Wait until processing is comple te.
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot for starting the engine with theke y (/ page 192). Display messages and
warning/indicator lamps
447 447

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Tryto start theve hicle. #
Ifth eve hicle does not start, consult a quali/ed specialist workshop.
Cannot start engine See
Owner's Manual *T
he state of charge ofthe 48 V battery is too lo w.You can no longer start theve hicle. #
Switch o. elect rical consume rsthat are not requ ired. #
Connect a suitable charge r appr ovedfo r Mercedes-Benz with su1cient charge output tothe jump-start connection
point of the 12 V battery (/ page 391).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *The 48 V battery has been charge d automatically via thevo ltage con verter. #
Start theve hicle and drive for a while tocharge the 12 V battery and the 48 V batter y. T T
yr
yr e pr
e pr essur
essur e monit
e monit or
or Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
being received. The tyre pressure monitoring system is temp orarily una vailable.
The tyre pressure monitoring system will restart au tomatically as soon as the cause has been recti/ed. #
Drive on.
Tyre press. monitor inoper-
ative *T
he tyre pressure moni toring system is malfunctioning. Display messa
ges and warning/indicator lamps
495 495

F
F
og light (enhanced)
og light (enhanced) .................................... .164
F
F oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s................. 229
F
F olding t
olding t able
able................................................ 138
Fr
Fr agr
agr ance
ance
see Frag rance system
Fr
Fr agr
agr ance syst
ance syst em
em
Inserting/ removing the 0acon................1 82
Setting................................................... 182
Fr
Fr ee dr
ee dr iving mode
iving mode
St arting................................................ .280
Fr
Fr ee
ee soTw
soTw are
are................................................. 41
Fr
Fr eq
eq uencies
uencies
Mobile phone......................................... 421
Tw o-w ayradio........................................ 421
Fr
Fr ont airbag (dr
ont airbag (dr iv
iver
er , fr
, fr ont passeng
ont passeng er)
er).............. 48
Fr
Fr ont passeng
ont passeng er seat
er seat
Ad justing from the driver's seat.............. 111
Ad justing from there ar.......................... 112
Fr
Fr ont passeng
ont passeng er seat
er seat
see Seat F
F
uel
uel
Additives................................................ 427
Diesel.................................................... 427
E10........................................................ 426
Fu elreser ve........................................... 429
Low outside temp eratures...................... 427
Pe trol..................................................... 426
Quality (diesel )....................................... 427
Quality (petrol)....................................... 426
Re fuellin g.............................................. .216
Sulphur content..................................... 426
Ta nk content.......................................... 429
F F uel consump
uel consump tion indicat
tion indicator
or
Calling up.............................................. 208
F
F unction seat
unction seat
see Door cont rol panel
F
F unction seat (r
unction seat (r ear)
ear)
see Seat (rear)
F
F uses
uses
Before replacing a fuse.......................... 397
Fu se assignment diag ram. ...................... 397
Fu se box in the engine compartment......3 98
Fu se box in the front passenger foot-
we ll........................................................ 399 Fu
se box in the load compartment......... 399
Fu se box on the dashboar d.................... 399
No tes..................................................... 397 G
G
Gar
Gar ag
age door opener
e door opener
Clea ring the memory.............................. 225
Gar
Gar ag
age door openers
e door openers
Opening/closing the door......................2 25
Prog ramming buttons............................. 223
Re solving problems................................ 225
Syn chronising thero lling code................ 224
Gear
Gear shiT
shiT r
recommendation
ecommendation........................... 212
Genuine par
Genuine par ts
ts................................................ 23
Glide mode
Glide mode.................................................. 212
Glov
Glov e box
e box
Air vent.................................................. 188
Gr
Gr oss mass
oss mass.................................................. 423 H
H
Handbr
Handbr ake
ake
see Electric parking brake
Handling c
Handling c har
haract
acter
eris
istics (unusual)tics (unusual) ................ 400 534
534
Ind
ex

Selecting............................................... 207
Inspection
Inspection see ASS YST PLUS
Ins
Instr trument clust
ument clust er
er
Fu nction/no tes.............................. 308, 309
Ins
Ins tr
trument display
ument display
Fu nction/no tes...................................... 309
Instrument clus ter.................................... 10
Overview of displa ys............................... 312
Wa rning/indicator lamps........................ 504
Ins
Instr trument displa
ument displa y and on-boar
y and on-boar d com-
d com-
put
put er
er
Fu nction/no tes...................................... 308
Int
Int ellig
ellig ent Light Syst
ent Light Syst em
em
Ac tivating/deactivating.......................... 165
Ac tive headlamps................................... 163
Ad aptive Highbeam Assist Plu s............... 165
Cornering light....................................... 163
Fo g light (enhanced).............................. 164
Mo torw ay mode.................................... .164
Overview................................................ 163
Int
Int er
erior lighting
ior lighting
Ad justing............................................... 167
Ambient lighting.................................... .167 Re
ading lamp......................................... 167
Switch-o. delay time.............................. 168
Int
Int er
erior pr ot
ior pr otection
ection
Fu nction................................................ 107
Priming/deactivating............................. 107
Int
Int er
erne
ne t r
t radio
adio
see TuneIn
Ionisation
Ionisation Activating/deactivating (MBUX multi-
media system)....................................... 182
iPhone
iPhone ®
®
see Smartphone integ ration
ISOFIX c
ISOFIX c hild seat anc
hild seat anc hor
hor
Seats suitable for attaching...................... 64
ISOFIX c
ISOFIX c hild seat secur
hild seat secur ing syst
ing syst em
em
Fi tting...................................................... 66 J
J
Jack
Jack Declaration of conformity......................... 34
Storage location.................................... .408
Jum Jum p-st
p-st ar
art connection
t connection
General no tes....................................... .389 K
K
K
K e
ey
y
Ac oustic locking veri/cation signal.......... .82
Battery..................................................... 83
Deacti vating a function............................ 82
Emer gency key......................................... 83
Energy consum ption................................ 82
Fu nction overview.................................... 81
Ke yring attachment................................. 83
Problem................................................... 84
Unlocking setting..................................... 82
KEYLESS-GO
KEYLESS-GO
Deactivating a function............................ 82
Locking/unlocking theve hicle................. 86
Problem................................................... 86
Unlocking setting.................................... .82
Kic Kic kdo kdo wn
wn
Using..................................................... 212
Knee airbag
Knee airbag.................................................... 48 L L
Lamp Lamp see Interior lighting 536
536
Ind
ex

N
N
eutr
eutr al
al
Engaging................................................ 210
N
Noise oise
Wheels and tyres................................... 400
Wheels/tyres......................................... 400 O
O
Occupant safe
Occupant safe ty
ty
see Airbag
see Automatic co-driver airbag shuto.
see Automatic measures aTer an accident
see Child seat
see Pets in theve hicle
see Post-collision brake
see PRE-SAFE ®
(anticipa tory occu-
pant pr otection)
see PRE-SAFE ®
Impulse Side
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restraint system
see Seat belt
O. -r
O.-r oad oadAssist
Assist
Setting................................................... 280
O. -r
O.-r oad
oaddr
driving
iving........................................... .198 O.-r
O.-r
oad
oaddr
driving
iving
see O.- road driving
O.-r
O.-r oad
oadESP
ESP®
®
(Electr
(Electr onicSt
onic Stability Pr
ability Pr o-
o-
gr
gr am)
am)
Switching on/o..................................... 234
O.-r
O.-r oad
oad light
light............................................... .164
O.r
O.r oad
oad Score
Score
Displaying.............................................. 208
Oil
Oil see Engine oil
On-boar
On-boar d com
d com put
puter
er
Displaying the service due dat e.............. 364
Head-up display menu............................ 313
Instrument display................................. 312
Menu overview.......................................3 10
Operating.............................................. 310
On-boar
On-boar d diagnos d diagnostics int tics interf
erface
ace
see Diagnostics connection
On-boar On-boar d electr d electrical syst
ical syst em batt
em batter
ery (12 V)
y (12 V)
Charging................................................ 391
Re placing.............................................. .392
St arting assis tance............................... .391 On-boar On-boar
d electr
d electronics
onics
Engine electronics................................. 420
No tes..................................................... 420
Tw o-w ayradios...................................... 420
on-demand f on-demand f eature
eature
Ac tivating................................................. 24
No tes...................................................... .24
Online ser
Online ser vices
vices
Data storag e............................................ 41
Online ser
Online ser vices
vices
see In-Car O1ce
Open-sour
Open-sour ce
cesoTw
soTw are
are.................................... 41
Opening t
Opening t he t
he tailg
ailgat
ate using y
e using y our f
our foot
oot
HANDS-FREE ACCESS............................. 93
Oper
Oper ating
ating 0uids
0uids
Ad Blue ®
................................................ .429
Ad ditives (fuel)....................................... 427
Brake 0uid............................................. 432
Coolant (engine).................................... 432
Engine oil............................................... 430
Fu el (diesel)........................................... 427
Fu el (petrol)........................................... 426
No tes..................................................... 425
windscreen washer 0uid........................ .433 Index
541 541

T
T
ec
ec hnical data
hnical data
Axle load (trailer operation).................... 441
Component-speci/c information............ 422
Fa stening points (t railer hitch)................ 439
Information............................................4 20
Mounting dimensions (trailer hitch)........4 39
No tes (trailer hitch)................................ 438
Overhang dimension (trailer hitch)......... .439
Re gula tory radio identi/cation (Indo-
nesia).................................................... 422
Re gula tory radio identi/cation of
small component s.................................. 422
To ngue weight........................................ 440
To wing capacity (trailer operation ).......... 439
T
T elephone elephone
Connecting a mobile phone (Passke y).... 340
Connecting a mobile phone (Secure
Si mp lePa iring)....................................... 340
Fu nctions in thete lephone menu............ 340
No tes..................................................... 337
No tes on wireless charging (mobile
phone)................................................... 155
Operating modes................................... 339
Te lephone menu overview......................3 39Wi
reless charging (mobile phone in
th ere ar)................................................ 157
Wi reless charging (mobile phone)........... 157
T
T elephon elephon y oper
y operating modes
ating modes
Blu etoo th®
telephony............................. 339
Car telephon y........................................ 339
T
T em
em per
per ature
ature
Setting theve hicle interior temp era-
ture....................................................... 178
Themes
Themes Fastening.............................................. .323
Thir
Thir dro
d ro w of seats
w of seats
Fo lding back the backrest on theth ird
ro w of seats.......................................... .143
Fo lding the backrest on theth ird row
of seats forw ards................................... 143
Getting in/out........................................ 115
Thr
Thr ough-loading f
ough-loading f eature
eature
see Seat
see Third row of seats
T T ie-do
ie-do wney
wn eyes
es.............................................. 147
TIREFIT kit
TIREFIT kit Declaration of conformity......................... 34 St
orage location.................................... .383
Using..................................................... 384
T
T o switc
o switc h on t
h on t he ignition
he ignition
see Vehicle
T
T oll syst
oll syst em
em
Wi ndsc reen............................................ 176
T
T ongue w
ongue w eight
eight.............................................. 440
T
T ool
ool
see Vehicle tool kit
T
T op Tet
op Tether
her...................................................... 70
T
T opping up
opping up
Topping up AdBlue ®
.............................. .220
T
T ouc
ouc h Contr
h Contr ol
ol
On-board computer................................ 310
Operating.............................................. 317
T
T ouc
ouc hpad
hpad
Operating.............................................. 317
T T ouc ouc hscr
hscr een
een
Operating.............................................. 317
Tow
Tow -awa
-a wa y pr ot
y pr otection
ection
Fu nction................................................ 106
Priming/deactivating............................. 107 Ind
ex
549
549

T
T
o
o w
w -bar syst
-bar syst em
em............................................ 306
Tow
Tow -st
-star
arting
ting................................................. 397
To
To wing away
wing away................................................. 394
To
To wing eye
wing eye
Fi tting.................................................... 397
St orage location..................................... 396
To
To wing met
wing met hods
hods.......................................... .393
Tr
Tr a1c
a1c inf
infor
ormation
mation
Switching on the display......................... 334
Tr
Tr a1c
a1c Sign Assist
Sign Assist
Fu nction/no tes...................................... 259
Setting................................................... 261
System limits......................................... 259
Tr
Tr ailer hitch
ailer hitch
Axle load................................................ 441
Bic ycle rack ........................................... 304
Care...................................................... 376
Coupling up/uncoupling a trailer............ 302
Extending/r etra cting the ball neck......... 299
Extending/ retracting the ball neck
(MBUX multimedia system).................... 301
Fa stening points.................................... 439
General no tes....................................... .438
Mounting dimensions............................. 439 No
tes..................................................... 299
Overhang dimension.............................. 439
Soc ket................................................... 302
To ngue weight........................................ 440
To wing capacity.................................... .439
Tr ailer Manoeuv ring Assist...................... 297
T
T r railer Manoeuvr
ailer Manoeuvr ing Assist
ing Assist
Fu nction................................................ 297
Using..................................................... 298
Tr Tr ailer oper ailer oper ation
ation
Ac tive Blind Spot Assist.......................... 263
Ac tive Lane Keeping Assist..................... 264
Bicycle rack ........................................... 304
Coupling up/uncoupling a trailer............ 302
Extending/r etra cting the ball neck......... 299
Extending/ retracting the ball neck
(MBUX multimedia system).................... 301
No tes..................................................... 299
Soc ket................................................... 302
Tr
Tr ailer st
ailer st abilisation
abilisation
Fu nction/no tes...................................... 233
Tr
Tr ansf
ansf er case
er case
HIGH RA NGE......................................... 213
LO W RANGE..........................................2 13ShiTing..................................................2
14
T
T r
ransmission
ansmission
Engaging neutral....................................2 10
Tr
Tr ansmission position displ ay
ansmission position displ ay....................... 209
Tr
Tr anspor
anspor ting
ting
Ve hicle.................................................. 395
Tr
Tr im element (Car
im element (Car e)
e)...................................... 378
T
T uneIn
uneIn
Calling up.............................................. 362
T
T ur
ur n signal indicat
n signal indicat or
or
Ac tivating/deactivating.......................... 162
TV
TV Information........................................... .359
Tw
Tw o-wa
o-wa y r
y radios
adios
Fr equencies........................................... 421
No tes on ins tallation.............................. 420
Tr ansmission output (maximum )............. 421
T
T ype approv
ype appr oval number (EU)
al number (EU) ........................... 423
T
T yr
yr e
ein0ation
in0ation com
compr
pressor
essor
see TIREFIT kit 550
550
Index