2021 MERCEDES-BENZ GLS SUV key battery

K
K
e
ey
y Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Á
Replace key *H
aveth eke yre placed. #
Consult a quali/ed specialist workshop.
Á
Change key batteries *T
hekey battery is dischar ged. #
Replace the battery (/ page 83).
Á Key not detected (white dis-
play message) *T
hekey is cur rently unde tected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot for starting with theke y (/ page 192). 446
446
Display messages and
warning/indicator lamps

5
Add 1 litre engine oil when next
re fuelling ............................................... 502
é ATTENTION ASSIST inoperati ve..... 471
é ATTENTION ASSIS T:Take a
break!.................................................... 471
: Automatic driving lights inoper-
ative...................................................... 448
_ Cannot fold 2nd seat row for-
wa rds See Owner's Manual .................... 460
Á Change key batteries .................... 446
J Check brake 0uid le vel.................. 470
ï Check trailer hitch lock (white
display message) .................................... 453
h Check tyre(s) ................................ 496
! Clean the fuel /lter....................... 463
Á Compressor is cooling .................. 486
ÿ Coolant Stop vehicle Switch
engine o............................................... 462
! currently una vailable See Own-
er's Manual............................................4 87÷
currently una vailable See Own-
er's Manual............................................4 88
5 Engine oil le vel cannot be meas-
ured....................................................... 503
5 Engine oil le velRe duce oil le vel..... 502
5 Engine oil le velSt op vehicle
Switch engine o.................................... 502
5 Engine oil pressure Stop Switch
o. engine.............................................. 503
ä Fault Drive at max. 80 km/h
...................................................... 483, 484
ä Fault Stop.................................... .484
6 Front leT malfunction Consult
wo rkshop (e xample)...............................4 43
& inoperative Battery low................. 451
& inoperative Refuel vehicle............. .451
& inoperative See Owner's Man........ 451
! inoperative See Owner's Manual.. .488
÷ inoperative See Owner's Manual.. .489
T inoperative See Owner's Manual.. .490 G
Inoperative................................... 491
î inoperative....................................4 75
: Intelligent Light System inopera-
tive........................................................ 449
Á Key being initialised Please wait.... 447
Á Key not de tected (red display
message).............................................. .447
Á Key not de tected (white display
message).............................................. .446
: LeT dipped beam (e xample).......... 448
6 LeT windowbag malfunction
Consult workshop (e xample).................. 443
 Lowe ring....................................... 485
: Malfunction See Owner's Man-
ual ......................................................... 448
î Max. speed 40 km/h .................... 476
ð Maximum speed exceeded ............ 475
î Not possible in cur rent drive
prog ram................................................. 475
Ø .................................................... 499 Index
527 527

ç
O................................................ .473
ë O.................................................4 71
ï Operation only possible in
transmission position P .......................... 452
! Parking brake See Owner's
Manual..................................................4 67
Á Please reduce speed .................... .486
Ý Please wait 48 V battery charg-
ing......................................................... 494
h Rectify tyre pressure ..................... 497
Ø Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 499
! Release parking brake ...................469
¸ Replace air cleaner ....................... 463
Á Replace key.................................. 446
8 Reser vefuel le vel.......................... 463
6 Restraint sys. malfunction Con-
sult workshop ....................................... .443
# See Owner's Manual..................... 492
y Siderunning boa rdnot extended ... 455 Ù
Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 456
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 456
# Stop vehicle Lea veengine run-
ning ....................................................... 494
# Stop vehicle See Owner's Man-
ual......................................................... 493
ç suspended .................................... 473
: Switch o. lights............................ 449
: Switch on headlamps .................... 449
á temp orarily una vailable Camera
view restric ted....................................... 482
¸ temp orarily una vailable Sensors
dirty....................................................... 481
Ø Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 499
+ Top up coolant See Owner ’s
Manual.................................................. 461
¥ Top up washer 0uid...................... .460 ï
Trailer coupling extending…........... 453
! Turn on the ignition torelease
th e parking brake ................................... 470
d Vehicle is operational Switch o.
ignition before exiting............................. 452
Á Vehicle rising Please wait.............. 485
Á Vehicle rising ................................ 485
h Warning tyre defect....................... 497
h Wheel sensor(s) missing ................ 496
Ø XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 500
Ac tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 479
Ac tive Blind Spot Assist inoperative........ 479
Ac tive Blind Spot Assist not available
when towing a trailer See Owner's
Manual................................................. .480
Ac tive Brake Assist Functions cur-
re ntly limi ted See Owner's Manual .........490 528 528
Index

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

Medical aids...........................................
.37
Pa rking up............................................. 228
QR code rescue car d............................... 38
Quali/ed specialist workshop.................. .36
Ra ising................................................... 410
REACH regulation.................................... 37
Re gistration............................................. 36
Setting collision de tection (par ked
ve hicle).................................................. 228
St andby mode function.......................... 228
St arting (emer gency ope ration mode ).... 192
St arting (Remo teOnline)........................ 193
St arting (start/stop but ton)................... 191
SV HC (substances of very high conce rn)..37
Switching o. (start/stop button)............ 222
Switching on (start/stop button)............ 190
To wing................................................... 306
Ve ntilating (con venience opening)........... .98
V
V ehicle batt ehicle batt ery
ery
see On-board electrical system battery (12 V)
V
V ehicle camera
ehicle camera
Information............................................ 229
V
V ehicle data
ehicle data
Angle of approach/departure.................4 36
Displaying (DYNAMIC SELECT)...............2 07Maximum
gradient climbing ability......... 436
Ro of load............................................... 435
Ve hicle height....................................... .434
Ve hicle length........................................ 434
Ve hicle widt h......................................... 434
Wheelbase............................................. 434
V V ehicle dimensions ehicle dimensions...................................... 434
V V ehicle emerg ehicle emerg ency st
ency start
art............................... 397
V
V ehicle
ehicle identi/cation
identi/cation number
number
see VIN
V
V ehicle
ehicle identi/cation
identi/cation plate
plate
EU type appro val number....................... 423
Maximum gross vehicle weight............... 423
Pa int code............................................. 423
Pe rm issible axle load.............................. 423
VIN........................................................4 23
V
V ehicle int
ehicle int er
erior
ior
Cooling or heating (Remo teOnline)........ 192
V
V ehicle key
ehicle key
see Key
V
V ehicle lev
ehicle lev el
el
Setting individual wheel control.............. 280 V
V
ehicle maint
ehicle maint enance
enance
see ASS YST PLUS
V
V ehicle sensors
ehicle sensors
Information............................................ 229
V
V ehicle t
ehicle t ool kit
ool kit
TIREFIT kit............................................. .383
To wing eye............................................. 396
V
V entilating
entilating
Con venience opening.............................. .98
V
V entilation
entilation
see Climate control
V
V ents
ents
see Air vents
VIN
VIN Identi/cation pla te................................. 423
Seat....................................................... 423
Wi ndsc reen............................................ 423
V
V ision ision
Demisting windo ws................................ 181
Wi ndsc reen heater................................. 183 552
552
Index