warning lights MERCEDES-BENZ GLS SUV 2020 Owner's Guide

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need
not be checked.
#
Elect rical fault warning
lamp *T
hered elect rical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the multifunction displa y.
8
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser ve wa rning lamp lights up while the engine is running.
The fuel supp lyhas dropped into there ser verange. #
Refuel. Displ
aymessa ges and warning/indicator lamps 497

Brakes
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Elect ric pa rking brake indi‐
cator lamp (red)
!
The elect ric pa rking brake
(yellow) indicator lamp *T
he red elect ric pa rking brake indicator lamp flashes or is lit.
The yellow elect ric pa rking brake indicator lamp also lights up in theev ent of a malfunction. #
Notethe messages on the multifunction displa y.
J
Brake sy stem warning lamp
(yellow) *T
he yellow brake sy stem warning lamp is lit while the engine is running. &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and drive on carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, obse rve it. 498
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Do not top up the brake fluid. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
æ Ac tive Brake Assi stwa rning
lamp *T
he white Active Brake Assi stwa rning lamp is lit.
The sy stem is switched off or una vailable.
L Wa rning lamp for dis tance
wa rning function *T
he red dis tance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the dis tance.
Fu nction of Active Brake Assi st (/ page 248). 500
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
÷ ESP ®
wa rning lamp lights
up *
The yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the multifunction displa y. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems
are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. å
ESP ®
OFF warning lamp *
The yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deacti vated.
Other driving sy stems and driving saf ety sy stems may also be inoperative. &
WARNING Risk of skidding when driving wi thESP ®
deacti vated
ESP ®
does not act tostabilise theve hicle. The availability of fur ther driving saf ety sy stems is also limited. #
Drive on carefull y. #
Deactivate ESP ®
only for as long as the situation requ ires. Display messages and
warning/indicator lamps 503

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up *T
he yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
R The tyres can bu rst.
R The tyres can wearexc essively and/or une venly.
R The driving characteristics as well as thesteering 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 tra ffic conditions. #
Check the tyre pressure and the tyres. Display messages and
warning/indicator lamps 505

:
Left dipped beam (e xamp le)........ .439
6 Left wind owbag malfunction
Consult workshop (e xample)................ .434
 Lowe ring....................................... 472
: Malfunction See Owner's Man‐
ual......................................................... 439
î Max. speed 40 km/h...................4 64
ð Maximum speed exceeded ........... 463
î Notpossible in cur rent drive
program ................................................ 464
Ø ..................................................... 486
ç Off................................................ 462
ë Off................................................ 460
ï Operation only possible in
transmission position P .........................443
! Parking brake See Owner's
Manual .................................................. 455
Á Please reduce speed .................... 473
Ý Please wait 48 V battery charg‐
ing ........................................................ .481 h
Rectify tyre pressure.................... 483
Ø Refill Ad Blue See Owne r’s
Manual.................................................. 485
! Release parking brake .................. 458
¸ Replace air cleaner ...................... 452
Á Replace key.................................. 437
8 Reser vefuel le vel......................... 452
6 Restra int sys. malfunction Con‐
sult workshop........................................ 434
# See Owner's Manual....................4 79
y Siderunning board not exten‐
ded........................................................ 445
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ......446
Ù Steering malfunction Stop
immediately See Owner's Manual .........446
# Stop vehicle Lea veengine run‐
ning ....................................................... 480
# Stop vehicle See Owner's Man‐
ual......................................................... 480 ç
suspended................................... 462
: Switch off lights...........................4 40
: Switch on headla mps................... 440
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual......... 486
+ Top up coolant See Owner ’s
Manual.................................................. 450
¥ Top up washer fluid ...................... 450
ï Trailer coupling extending…......... 443
! Turn on the ignition torelease
th e parking brake..................................4 59
d Vehicle is operational Switch
off ignition before exiting..................... .443
Á Vehicle rising Please wait............ .472
Á Vehicle rising................................4 72
h Warning tyre defect..................... .484
h Wheel sensor(s) missing .............. 482
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss................................................ 486 Index
515

Opening or closing
the door..................2 20
Programming buttons............................ 219
Re solving problems...............................2 20
Synchronising thero lling code............. .220
Gearshift recommendation..................... .208
Gene ral operating permit number (EU)... 41 5
Genuine parts.............................................. 23
Genuine wood (Care) ................................ .370
Glide mode................................................. 208
Glo vebox
Air vent.................................................. 186H
Handbrake see Electric parking brake
Handling characteristics (unusual)......... 393
HANDS-FREE ACCESS ................................ .89
Handset Stow age compartment......................... .136
Hazard warning lights.............................. .158 Head
restra int
At tach ing/ removing the supplemen‐
ta ry cushion........................................... 11 9
EASY ADJU STluxury head restra int
(front).................................................... .117
Fr ont (adjusting mechanically)............... 11 5
Fr ont (luxury head restra int)................. .116
Re ar (adjusting)...................................... 11 7
Re ar (fitting/removing)......................... .118
Re ar (luxury head restra int )................... 11 8
Head-up display Adjusting display elements (on-board
compu ter)............................................. 309
Ad justing the brightness (on-board
computer).............................................3 09
Fu nction................................................ 308
Menu (on-board compu ter)................... 309
Operating the memory function.............1 28
Setting the position (on-board com‐
puter)....................................................3 09
Switching on/of f................................... 310
Headlamp flashing.................................... 15 8
Headlamps see Automatic driving lights Heating
see Climate control
Help call see Mercedes-Benz emergency call sy stem
High beam Activating/deactivating......................... 15 8
Ad aptive Highbeam Assist Plus.............. 161
HIGH RANGE Shifting.................................................. 210
High-pressure cleaner (care)................... 366
Hill Start Assist......................................... 231
HOLD function Function/no tes..................................... 230
Switching on/of f................................... 230
Home sc reen (media display)
Overview............................................... .312 I
i-Size child seat securing sy stem
Fitting..................................................... .64
i‑Size child seat securing sy stem
Seats suitable for attaching..................... 64522
Index

Overview.................................................
78
Problem................................................... 81
Un locking setting.................................... 79
Ke y functions
Deactivating............................................79
KEYLESS-GO Locking theve hicle..................................83
Problem................................................... 83
Un locking setting.................................... 79
Un locking theve hicle.............................. 83
Kickdown Using..................................................... 208
Knee airbag .................................................. 45 L
Lamp see Interior lighting
Lamps (instrument display) see Warning/indicator lamps
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist LED light
see Intelligent Light Sy stem
Leg rest
At tach ing/ removing the additional
cushion..................................................1 12
Le vel control sy stem
see AIRMATIC
see E- ACTIVE BODY CONTROL
Light switch Overview...............................................1 56
Lighting see Interior lighting
see Lights
Lights Active headla mps.................................. 15 9
Ad aptive Highbeam Assist Plus.............. 161
Au tomatic driving lights........................ .157
Combination swit ch............................... 15 8
Corne ring light....................................... 15 9
Driving ab road (symm etrical low
beam).................................................... 15 6
Fo g light (extended range)..................... 16 0
Haza rdwa rning light s............................ 15 8
Headla mpflashin g................................. 15 8High beam.............................................
15 8
Intellige nt Light Sy stem......................... 15 9
Light switc h........................................... 15 6
Low beam.............................................. 15 6
Mo torw ay mode..................................... 16 0
Off-road light.......................................... 161
Pa rking lights........................................ .156
Re ar fog light......................................... 15 6
Re sponsibility for lighting sy stems........ 15 6
Setting the dipped beam....................... 16 2
Setting theex terior lighting switch-
off delay time........................................1 63
St anding lights....................................... 15 6
Switching the sur round lighting on/
off......................................................... .163
Tu rn signal indicator.............................. 15 8
Limiter Activating.............................................. 235
Buttons.................................................. 235
Calling up a spee d................................. 235
Deactivating.......................................... 235
Fu nction................................................ 234
Pa ssive mode........................................ 234
Pe rm anent setting................................ .236
Re quirements........................................ 235 524
Index

Declaration of conformity (electro‐
magnetic compatibility)........................... 26
Declaration of conformity (ja ck).............. 30
Declaration of conformity (TIREFIT kit).... 31
Declaration of conformity (wireless
ve hicle components)...............................26
EQ Boo st................................................. 24
Information.............................................. 24
Operating sy stem
see On-board computer
Optimised acceleration Activating............................................... 191
Outside mir rors
Anti-dazzle mode (automatic)................ 171
Au tomatic mir rorfo lding function......... .172
Fo lding in/out...................................... .170
Operating the memory function.............1 28
Pa rking position..................................... 171
Setting................................................... 17 0
Overhead control panel Overview..................................................12
Owner's Manual Vehicle equipment................................... 24
Owner's Manual (digital)............................ 20 P
Pa int code.................................................. .415
Pa intwork (cleaning instructions) ............ 367
Pa nel heating
Setting................................................... 12 3
Pa norama sliding sunroof
see Sliding sunroof
Pa rk position
Inserting................................................ 206
Selecting au tomatical ly......................... 206
Pa rking
see Electric parking brake
Pa rking aid
see Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC
Ac tivating.............................................. 287
Ad justing warning tones........................ 287
Deactivating.......................................... 287
Fu nction................................................ 283
Side impact pr otection..........................2 85
Sy stem limitations................................. 283
Pa rking assistance sy stems
see Active Parking Assist Pa
rking brake
see Electric parking brake
Pa rking lights............................................ .156
Pa rking position
Outside mir rors...................................... 171
St oring the position of the passenger
outside mir ror using reve rsege ar.......... 172
Pa rking up.................................................. 223
PA SSENGER AIR BAGstatus display
see Automatic front passenger front
airbag shutoff
Pe rfume
see Fragrance sy stem
Pe rfume vial
see Fragrance sy stem
Pe riod out of use
Ac tivating/deactivating standby
mode.................................................... .224
St andby mode function........................ .223
Pe rm issible axle load ................................ 41 5
Pe rm itted towing me thods...................... 385
Pe trol .......................................................... 419 Index
529

;
Engine diagnosis warning lamp... .496
å ESP®
OFF warning lamp.............. .503
÷ ESP®
wa rning lamp flashes.......... 502
÷ ESP®
wa rning lamp lights up........ 503
8 Fuelreser vewarning lamp
lights up............................................... .497
Ù Powe rst eering warning lamp
(red)...................................................... 493
6 Restra int sy stem warning lamp... .492
ü Seat belt warning lamp flashes.... 492
ü Seat belt warning lamp lights
up......................................................... .493
ä Suspension warning lamp (red).... 501
ä Suspension warning lamp (yel‐
low)....................................................... 501
! The elect ric pa rking brake (yel‐
low) indicator lam p................................ 498
ï Trailer tow hit chwarning lamp..... 494
h Tyre pressure monitoring sys‐
te m wa rning lamp flashes.................... .504 h
Tyre pressure monitoring sys‐
te m wa rning lamp lights up................... 505
L Warning lamp for dis tance
wa rning function................................... 500
Wa rning/indicator lamps
Overview.............................................. .490
PA SSENGER AIR BAG.............................. 50
Wa rranty ...................................................... 34
Wa sher fluid
see Windsc reen washer fluid
Wa shing byhand (care)............................ 367
Wa ter tank
see Air-water duct
We ather information ................................. 329
We b br owsers
Overview (multimedia sy stem).............. 340
Wheel change
Fitting a new wheel............................... 406
Lo we ring theve hicle.............................4 06
Prepa ration........................................... 402
Ra ising theve hicle................................ 403
Re moving a whee l................................. 405 Re
moving/fitting hub caps................... .402
Wheel change
see Emergency spa rewheel
Wheel rotation........................................... 400
Wheels Care...................................................... 369
Changing hub caps................................ 402
Checking............................................... 393
Checking the tyre pressure (tyre
pressure monitoring sy stem)................. 396
Fitting.................................................... 406
Flat tyre.................................................3 74
Inter changing........................................ 400
MOExtended tyres................................ .375
No ise.................................................... .393
No tes on fitting..................................... 397
Re moving.............................................. 405
Re placing...................................... 397, 402
Re starting the tyre pressure monitor‐
ing sy stem.............................................3 97
Selection............................................... 397
Snow chains......................................... .393
St oring...................................................4 01
TIREFIT kit..............................................3 76
Ty re pressure (No tes)............................ 394 540
Index