2020 MERCEDES-BENZ GLS SUV ABS

Display messages
Possible causes/consequences and M
MSolutions
!
÷ inoperative See Owner's
Manual *
ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning.
The brake sy stem will continue tooperate normally. Braking dis tance may increase in an emergency braking situa‐
tion. &
WARNING Risk of skidding if ABS and ESP ®
are malfunctioning
The wheels may block du ring braking and ESP ®
does not pe rform any vehicle stabilization.
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ABS and ESP ®
ch ecked immediately at a qualified specialist workshop. ÷
currently unavailable See
Owner's Manual *
ESP ®
is temp orarily una vailable.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. &
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 carefully on a suitable stre tch of road, making slight steering mo vements at a speed abo ve30 km/h. Displ
aymessa ges and warning/indicator lamps 475

Display messages
Possible causes/consequences and M
MSolutions
T
!
÷ inoperative See Owner's
Manual *
EBD, ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. &
WARNING Risk of skidding if EBD, ABS and ESP ®
are malfunctioning
The wheels may block du ring braking and ESP ®
does not pe rform any vehicle stabilization.
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with the Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance Package: Active Brake Assi stistemp orarily una vailable. #
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine. Display messages and
warning/indicator lamps 477

Instrument display
Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown.
Indicator and warning lamps:
6 Re
stra int sy stem (/ page 492)
ü Seat belt (/
page 492)
ï Trailer hit ch (/page 493)
Ù Powe rst eering (/ page 493)
ÿ Coolanttemp erature (/ page 495)
; Engine diagnostics (/
page 495)
% Preglow #
Elect
rical fault (/ page 495)
8 Re
ser vefuel with fuel filler flap loca‐
tion indicator (/ page 495)
! Elect
ric pa rking brake (red)
(/ page 498)
! Electric parking brake (yellow)
(/
page 498)
J Brakes (yellow) (/
page 498)
J Brakes (red) (/
page 498)
L Distance warning (/ page 500)
ä AIRMATIC/E -ACTIVE BODY CON‐
TROL (/ page 500)
! ABS (/
page 502)
÷ ESP®
(/ page 502)
å ESP®
OFF (/ page 502)
h Ty
re pressure monitoring sy stem
(/ page 504)
T St
anding lights (/ page156)
L Low beam (
/page 156)
K High beam (/
page158)
#! Tu
rn signal lights (/ page158) R
Re
ar fog lamp (/ page156) Displ
aymessa ges and warning/indicator lamps 491

Driving saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! ABS warning lamp *T
he yellow ABS warning lamp is lit while the engine is running.
ABS is malfunctioning.
If th ere is an additional warning tone, EBD is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. #
Notethe messages on the multifunction displa y. &
WARNING Thereis a risk of skidding if EBD or ABS is malfunctioning
The wheels may lock during braking.
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. ÷
ESP ®
wa rning lamp flashes *
The yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
One or more wheels has reached its grip limit (/ page 227). #
Adapt your driving style to suit thero ad and weather conditions. 502
Display messages and warning/indicator lamps

1,
2, 3 ...
4MATIC Function................................................. 211
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
48 V on-board electrical sy stem
Operating saf ety...................................... 24
230 V soc ket
see Soc ket (230 V)
360° Camera Care...................................................... 369
Fu nction................................................ 280
Opening the camera co ver (r eve rsing
camera)................................................. 283
Selecting a view................................... .283
Switching auto matic operation
on/off (r eversing camera).................... .283 A
A/C function Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 76
Switching on/off (control panel )........... 175
ABS (Anti-lock Braking Sy stem) .............. .226
Ac celeration
see Kickdown
Ac cident and Breakdown Manage‐
ment
Mercedes me connect........................... 334
Ac oustic locking verification signal
Ac tivating/deactivating........................... 79
Ac tive Blind Spot Assi st
Brake application................................. .259
Fu nction................................................ 257
Sy stem limitations................................. 257
Tr ailer operation.................................... 259
Ac tive Brake Assi st
Fu nction/no tes..................................... 24 8
Setting................................................... 253
Ac tive Di stance Assist DISTRO NIC
Ac tive Emergency Stop Assis t............... 24 8Calling up a spee
d................................. 239
Fu nction................................................ 236
Increasing/decreasing speed................ 239
Re quirements:...................................... .239
Ro ute-based speed adap tatio n.............. 24 2
Selecting............................................... 239
St eering wheel buttons......................... 239
St oring a speed.....................................2 39
Switching off/deactivating.................... 239
Switching on/activating........................ 239
Sy stem limitations................................. 236
Ac tive Eme rgency Stop Assist ................ .248
Ac tive headlamps...................................... 15 9
Ac tive Lane Keeping Assist
Ac tivating/deactivating......................... 262
Ac tivating/deactivating thewa rning.....2 62
Fu nction................................................ 260
Setting the sensitivity............................2 62
Sy stem limits.........................................2 60
Tr ailer operation.................................... 260
Ac tive Parking Assist
Exiting a parking space......................... .291
Fu nction................................................ 288
Pa rking................................................. .289 506
Index

Air-recirculation mode..............................
17 7
Air-water duct Keeping free.......................................... 364
Airbag Activation................................................ 40
Cushionbag............................................. 45
Fr ont airbag (driver, front passenger)...... 45
Ins tallation locations.............................. .45
Knee airbag............................................ .45
Overview................................................. 45
PA SSENGER AIR BAG indicator lamp....... 50
Pr otection................................................ 46
Re duced pr otection.................................47
Side airba g.............................................. 45
Wi ndow airba g......................................... 45
Ai rflow
Setting................................................... 174
AIRM ATIC
Setting.................................................. .265
Suspension........................................... 262
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC Ambient lighting
Setting (multimedia sy stem)..................1 64
Android Auto
see Smartphone integration
Animals Pets in theve hicle................................... 77
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft pr otection
Ad ditional door loc k................................ .81
Immobiliser........................................... 102
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
see Smartphone integration
Assistance sy stems
see Driving saf ety sy stem ASS
YST PLUS
Battery disconnection pe riods.............. 358
Displaying the service due dat e............. 357
Fu nction/no tes..................................... 357
Re gular maintenance work.................... 357
Special service requ irements................ 357
ATA (anti-theft ala rmsystem)
Deactivating the alarm.......................... 103
Fu nction................................................ 102
Fu nction of interior pr otection............... 103
Priming/deactivating interior pr otec‐
tion........................................................ 104
Priming/deactivating tow- aw ay pro‐
te ction................................................... 103
To w- aw ay protection function................1 03
AT TENTION ASSI ST
Fu nction................................................ 232
Setting................................................... 233
Sy stem limitations................................. 232
At tention assistant
see ATTENTION ASSIST
Au thorised workshop
see Qualified specialist workshop 508
Index

Fu
nction................................................ 257
Sy stem limitations................................. 257
Blo wer
see Climate control
BlueTEC see AdBlue ®
Boot lid see Tailgate
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid Notes..................................................... 424
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion).......................................................2 30
Brakes ABS (Anti-lock Braking Sy stem).............2 26
Ac tive Brake Assi st................................ 24 8
Ad aptive brake light s............................ .231
BA S (Brake Assi stSystem).................... 227
Driving tips............................................ 19 2
EBD (Electronic Brake forc e Distribu‐
tion)....................................................... 230 HOLD function......................................2
30
Limi ted braking ef fect (salt-trea ted
ro ads).................................................... 19 2
New/replaced brakepads/brake
discs...................................................... 19 0
Po st-collision brake................................. 54
Ru nning-in no tes.................................... 19 0
Braking assistance see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions................ 18
To w- starting.......................................... 390
To wing away.......................................... 386
Tr ansporting theve hicle........................ 388
Wheel chang e....................................... .402
Breakdown see Flat tyre
Buttons Steering wheel...................................... 306 C
Calls Mercedes me........................................ 335
Camera....................................................... 272Camera
see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care)......................................... 364
Car-to-X-Communication Displaying hazard warnings.................. .329
Care 360° camera......................................... 369
Air-water duct....................................... .364
Au tomatic car wash...............................3 64
Carpe t.................................................. .370
Decorative foil...................................... .368
Displ ay.................................................. 370
Exterior lighting.................................... .369
High-p ressure cleaner........................... 366
Pa int wo rk.............................................. 367
Plastic trim............................................ 370
Re alwo od/trim elements..................... 370
Re versing camera................................. .369
Ro of lining............................................. 37051 0
Index

D
Dashboa rd
see Cockpit
Data acquisition Vehicle.................................................... 34
Data pr otection rights
Data storage............................................ 38
Data storage
Data pr otection rights............................. 38
Electro nic control units........................... 34
Online service s........................................ 37
Ve hicle.................................................... 34
Deactivating the alarm (A TA ).................... 103
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility.................26
Jack......................................................... 30
Specific absor ption rate.......................... 26
TIREFIT kit............................................... 31
Wi reless vehicle components.................. 26
Decorative foil (cleaning instructions) .... 368DeNOx agent
see AdBlue ®
De stination entry
En tering a POI or address...................... 326
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ..............................31
Diesel Low outside temp eratures..................... 420
No tes....................................................4 20
Digital Owner's Manual .............................. 20
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting................................................... 16 2
DIRECT SELECT le ver
Engaging drive position......................... 206
Engaging neutral................................... 205
Engaging pa rkposition.......................... 206
Enga ging park position automatically....2 06
Engaging reve rsege ar........................... 205
Fu nction................................................ 204
Displ ay(care) ............................................ .370 Display (MBUX multimedia sy
stem)
Home screen........................................ .312
Display (multimedia sy stem)
Operating.............................................. .313
Display (on-boa rdcompu ter)
Displ ays on the multifunction displa y.... 308
Displ aymessage
Calling up (on-board compu ter)............. 433
No tes....................................................4 33
Display messages ¯ - - - km/h ...................................... 461
ç - - - km/h ..................................... 462
È - - - km/h ...................................... 461
# 12V battery See Owner's Man‐
ual......................................................... 479
Û 48 V battery See Owner's Man‐
ual......................................................... 480
: Active Light Sy stem inoperative... 440
¯ AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km................................................. .487 Index
513