2021 MERCEDES-BENZ GLS SUV warning

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
÷
ESP ®
wa rning lamp 0ashes *
The yellow ESP ®
wa rning lamp 0ashes while theve hicle is in motion.
One or more wheels ha vereached their grip limit (/ page 232). #
Adapt your driving style tosuit thero ad and weather conditions.
÷ ESP ®
wa rning lamp lights up *
The yellow ESP ®
wa rning lamp is lit while theve hicle is running.
ESP ®
is malfunctioning.
Other driving systems and driving sa fety systems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the instrument displa y. &
W
WARNI NG
ARNI NGRisk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot carr y outvehicle stabilisation. In addition, other driving saf ety sy stems are
swit ched o.. #
Drive on carefull y. #
Have ESP ®
ch ecked at a quali/ed specialist workshop. å
ESP ®
OFF warning lamp *
The yellow ESP ®
OFF warning lamp is lit while theve hicle is running.
ESP ®
is deactivated.
Other driving systems and driving sa fety systems may also be inoperative. 516
516
Display messages and
warning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions &
W
W ARNING
ARNING Risk of skidding when driving with ESP ®
deactivated
ESP ®
does not act tostabilise theve hicle. The availability of fu rther driving saf ety sy stems is also limi ted. #
Drive on carefull y. #
Deactivate ESP ®
only for as long as the situation requ ires.
If ESP ®
cannot be activated, ESP ®
is malfunctioning. #
Have ESP ®
ch ecked immediately at a quali/ed specialist workshop. #
Obser vethe no tes on deacti vating ESP ®
(/ page 232). T
T
yr
yr e pr
e pr essur
essur e monit
e monit or
or W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
h
Ty re pressure monitoring
system warning lamp 0ashes *The
yellow tyre pressure monitor warning lamp (pressure loss/malfunction) 0ashes for appr oximately one minute and
th en remains lit.
The tyre pressure monitor is malfunctioning. &
W
WARNING
ARNING There is a risk of an accident if the tyre pressure monitoring system is malfunctioning
The tyre pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tyres. Display messages and
warning/indicator lamps
517
517

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W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ty res with insu1cient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring system checked at a quali/ed specialist workshop. h
Ty re pressure monitoring
system warning lamp lights
up *T
he yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has de tected tyre pressure loss in at least one of the tyres. &
W
WARNING
ARNING Risk of an accident due toinsu1cient tyre pressure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle in accordance with the tra1c conditions. #
Check the tyre pressure and the tyres. 518
518
Display messages and
warning/indicator lamps

BAS
(Brake Assist System).................... .231
Driving tips............................................ 195
EBD (Electronic Brake forc e Distribu-
tion).......................................................2 35
HOLD function....................................... 235
Limited braking e.ect (salt-treated
ro ads)................................................... .195
Ne w/replaced brake linings/brake
discs...................................................... 193
Po st-collision brak e.................................. 57
Ru nning-in no tes.................................... 193
Br Br aking assist
aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Assistance overview. ................................ 18
To w- starting........................................... 397
To wing away.......................................... 394
Tr anspo rting theve hicle........................ .395
Wheel chang e........................................ 409
Br
Br ea kdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 310 C
C
Calls
Calls Mercedes me......................................... 340
Camera
Camera
Information............................................ 229
Camera Camera see 360° Camera
see Dashcam
see Reversing camera
Car key
Car key
see Key
Car w Car w ash
ash
see Care
Car w
Car w ash (car
ash (car e)
e)............................................ 371
Car
Car -t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 334
Care
Care 360° camera......................................... 376
Air-water duct........................................ 371
Automatic car wash.............................. .371
Carpet................................................... 378
Decorative foil........................................ 375
Display................................................... 378 Exterior lighting...................................... 376
Head-up display..................................... 378
High-pressure cleaner............................3
74
Pa int...................................................... 374
Plastic trim............................................3 78
Re alwo od/trim elements..................... .378
Re versing camera..................................3 76
Ro of lining............................................. 378
Ru nning boa rds...................................... 376
Seat belt................................................ 378
Seat co ver............................................. 378
Sensors.................................................3 76
St eering wheel....................................... 378
Ta ilpipes................................................ 376
Tr ailer hitc h............................................ 376
Wa shing byhand.................................... 374
Wheels/rims.......................................... 376
Wi ndo ws................................................ 376
Wi per blades.......................................... 376
Car
Car pe pet (Car
t (Car e)
e)............................................... 378
Changing g Changing g ears ears
Manually................................................ 211
Changing hub caps
Changing hub caps ....................................... 409 Index
523
523

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

Ac
tive Brake Assist Functions limi ted
See Owner's Manual.............................. 491
Ac tive Distance Assist available again ..... 474
Ac tive Distance Assist cur rently
una vailable See Owner's Manual ............ 473
Ac tive Distance Assist inoperative.......... 474
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual ............ 480
Ac tive Lane Keeping Assist inoperative... 480
Ac tive Steering Assist cur rently
una vailable due tomultiple emer-
ge ncy stops........................................... 476
Ac tive Steering Assist cur rently
una vailable See Owner's Manual ............ 476
Ac tive Steering Assist inoperative...........4 76
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .............477
Ac tive Stop-and-Go Assist inoperative
See Owner's Manual.............................. 477 Ad
aptive Highbeam Assist Plus cur-
re ntly una vailable See Owner's Manual ... 450
Ad aptive Highbeam Assist Plus inop-
erative.................................................. .450
Anti-theT alarm system Malfunction ....... 460
Apply brake todeselect Park (P) posi-
tion....................................................... .464
Apply brake toselect D or R ...................464
Apply brake toselect R .......................... 464
Au xiliary battery malfunction (red dis-
play message) ....................................... .466
Au xiliary battery malfunction (white
displ aymessage) .................................... 466
Beginning emer gency stop..................... 477
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 478
Blind Spot Assist inoperative.................. 479
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 479Cann
otstart engine See Owner's
Manual.......................................... 461, 495
Check brake pads See Owner's Man-
ual......................................................... 470
Cruise control and Limi ter inoperative.... 472
Cruise control inoperative......................4 72
Cruise control o.................................... 472
Device de tected at diagnostics con-
nection See Owner's Manual................. .492
Drive system Malfunction Stop Switch
engine o............................................... 463
Drive system Malfunction Visit work-
shop ...................................................... 463
Fr ont-passenger airbag disabled See
Owner's Manual .................................... .444
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .444
Gearbox pr otection Limit 30 km/h
Switch o. LOW RANGE.......................... 459
Hazard warning lamps malfunctioning .... 450 Index
529 529

HANDS-FREE A
HANDS-FREE A
CCESS
CCESS................................... 93
Handset
Handset Stow age compartmen t.......................... .140
Hazar
Hazar d w
d war
arning lights
ning lights................................... 162
Head r
Head r es
estrtraint
aint
At tach ing/removing the supplemen-
ta ry cushion.......................................... .122
EASY ADJUST luxury head restraint
(f ro nt).................................................... 120
Fr ont (adjusting mechanically)................ 118
Fr ont (luxury head restraint)................... 119
Re ar (adjusting)..................................... .120
Re ar (luxury head restraint).................... 121
Re ar (removing//tting)........................... 121
Head-up displ ay
Head-up display
Adjusting brightness (on-board com-
puter).................................................... 313
Ad justing display elements (on-board
co mp uter).............................................. 313
Care...................................................... 378
Fu nction................................................ 312
Menu (on-boa rdcomputer)..................... 313
Operating the memory function.............. 131 Setting
the position (on-board com-
puter).................................................... 313
Switching on/o.....................................3 14
Headlam
Headlam p p0ashing
0ashing ........................................ 162
Headlam
Headlam ps
ps
see Automatic driving lights
Heating
Heating see Climate control
Help call
Help call see Mercedes-Benz emer gency call system
High beam
High beam Activating/deactivating.......................... 162
High beam
High beam see Adaptive Highbeam Assist Plus
HIGH RAN
HIGH RAN GE
GE
ShiTing.................................................. 214
High-pr
High-pr essur
essure cleaner (car
e cleaner (car e)
e)........................ 374
Hill St
Hill Star
art Assist
t Assist............................................ 236
HOLD function
HOLD function Function/no tes...................................... 235
Switching on/o..................................... 235 Home scr
Home scr
een (media displa
een (media displa y)
y)
Overview................................................ 316 I
I
i-Size c
i-Size c hild seat secur
hild seat secur ing syst
ing system
em
Fi tting...................................................... 66
Seats suitable for attaching...................... 66
Identi/cation
Identi/cation plate
plate
Engine................................................... 423
Ve hicle.................................................. 423
Ignition key
Ignition key
see Key
Immobiliser
Immobiliser .................................................. 105
Im
Im plied w
plied w arr
arranty
anty
Ve hicle..................................................... 38
Im
Im port
port er addr
er addr esses
esses
Wi reless components...............................33
In-Car
In-Car O1ce
O1ce
Fe atures................................................ 346
Indicat
Indicat or lamp
or lamp
see Warning/indicator lamp
Individual dr
Individual dr iv
iv e pr
e pr ogr
ogram
am
Con/guring............................................ 207 Index
535
535

Lam
Lam
p (ins
p (instr trument displa
ument displa y)
y)
see Warning/indicator lamp
Lane det
Lane det ection (aut
ection (aut omatic)
omatic)
see Active Lane Keeping Assist
Lane K
Lane K eeping Assist
eeping Assist
see Active Lane Keeping Assist
Language
Language Notes..................................................... 327
Setting................................................... 327
LED light
LED light
see In telligent Light System
Leg r
Leg r est
est
At tach ing/removing the additional
cushion.................................................. 115
Lev
Lev el contr
el contr ol syst
ol system
em
see AIRMATIC
see E- ACTIVE BODY CONTROL
Light adjus Light adjus tment
tment
Low beam (driving abroad).................... .160
Light switch
Light switch Overview................................................ 160
Lighting
Lighting
see Interior lighting see Lights
Lights
Lights
Active headlamps................................... 163
Ad aptive Highbeam Assist Plu s............... 165
Au tomatic driving lights......................... .161
Combination switc h............................... 162
Cornering light....................................... 163
Driving abroad (low beam light adjust-
ment)..................................................... 160
Fo g light (enhanced).............................. 164
Hazard warning lights............................. 162
Headlamp 0ashing................................. 162
High beam............................................. 162
Intelligent Light System..........................1 63
Light switch........................................... 160
Low beam.............................................. 160
Mo torw ay mode.................................... .164
O.- road light......................................... .164
Pa rking lights......................................... 160
Re ar fog light......................................... 160
Re sponsibility for lighting systems.......... 160
Setting low beam................................... 166
Setting theex terior lighting switch-o.
delay time.............................................. 166
St anding lights....................................... 160 Switching
the Intelligent Light System
on/o....................................................1 65
Switching the sur round lighting on/o.... 166
Tu rn signal indicator............................... 162
Limit
Limit er er
Ac tivating............................................... 239
Buttons.................................................. 239
Calling up a speed................................. 239
Deactivating........................................... 239
Fu nction................................................ 239
Pa ssive mode......................................... 239
Pe rm anent setting.................................. 241
Re quirements........................................ 239
Selecting............................................... 239
Setting a speed...................................... 239
St oring a speed.............................. 239, 244
Switching o./deactivating.................... .244
Switching on/activating......................... 244
System limits......................................... 239
Limiting speed Limiting speed see Limiter
Limiting t Limiting t he opening angle (t
he opening angle (t ailg
ailgat
ate)
e)............... 95
LIN
LIN GUA
GUA TR
TRONIC
ONIC
Fu nction................................................ 319 Ind
ex
537
537