2019 MERCEDES-BENZ GLS SUV light

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions &
WARNING Risk of inju rydue tomalfunctions in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or may not
deploy as intended during an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop immediatel y. Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
lights up The
red seat belt warning lamp will light up once the engine has star ted.
In addition, a warning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt (/ page41).
If yo u ha veplaced objects on the front passenger seat, the seat belt warning lamp may remain lit. Display messa
ges and warning/indicator lamps 671

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
The driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt(/ page41).
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
L Wa rning lamp for dis tance
wa rning function The
red dis tancewarning 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 235).
ä Suspension warning lamp The
yellow AIRMATIC/E -ACTIVE BODY CONTROL warning lamp is on.
There is a fault in the AIRMATIC/E -ACTIVE BODY CONTROL. #
Obser vethe messages on the multifunction displa y.672
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 536). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
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
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired. Display messages and
warning/indicator lamps 675

Ac
tive headlamps .................................... 16 0
Ac tive Lane Change Assi st..................... 255
Ac tivating/deactivating ...................... .257
Fu nction .............................................. 255
Ac tive Lane Keeping Assist .................... 309
Ac tivating/deactivating ........................ 311
Ac tivating/deactivating thewa rning .... 311
Fu nction .............................................. 309
Setting the sensitivity ........................... 311
Sy stem limitations ...............................3 09
Ac tive Parking Assist .............................. 293
Cross Traf fic Alert ............................... 299
Drive AwayAssi st................................ 298
Exiting a pa rking space ...................... .296
Fu nction .............................................. 293
Manoeuvring assi stance ...................... 300
Pa rking ................................................ 295
Sy stem limitations ...............................2 93
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 251
Display ................................................. 251
Fu nction ............................................... 251 Ac
tive Steering Assist ............................ .253
Ac tivating/deactivating ...................... .255
Ac tive Emergency Stop Assist .............2 57
Ac tive Lane Change Assi st.................. 255
Displa ysinthe instrument display .......2 58
Fu nction .............................................. 253
Sy stem limitations ...............................2 53
Ac tive Traf fic Jam Assist
Fu nction .............................................. 257
Ad aptive brake lights ..............................241
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist Plus
Fu nction .............................................. 16 2
Switching on/off ................................. 16 3
Ad Blue ®
.................................................... 601
Ad ditives .............................................. 601
Capacity .............................................. 602
Consum ption ...................................... .602
Fill le vel .............................................. .325
No tes ................................................... 215
Purity ................................................... 601 Ra
nge ................................................. .325
To pping up ...........................................2 16
Ad ditional door lo ck.................................. 86
Ad diti ves.................................................. 602
Ad Blue ®
............................................... 601
Engine oil ............................................ 602
Fu el ..................................................... 600
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance/ fader
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Burmes ter®
sur round sound sy stem ....5 17
Ad justing the bass, mid- range and
treble
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8680
Index

Ad
justing the mid- range, treble and
bass
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ....5 17
Ad justing the sound optimisation
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Ad justing treble, mid- range and bass
settings
Burmes ter®
high-end 3D sur round
sound sy stem ....................................... 51 8
Burmes ter®
sur round sound sy stem ....5 16
ADS PLUS da mping sy stem
see AIRMATIC
Af ter-sales service centre
see ASS YST PLUS
Air conditioning menu Calling up ............................................ 17 7
Air conditioning sy stem
see Climate control Air distribution
........................................ .175
Setting (multimedia sy stem) ................1 78
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIRMATIC
Air vents ................................................... 186
Ad justing (front) .................................. 186
Ad justing (rear) .................................... 187
Glo vebox .............................................1 88
Air vents
see Air vents
Ai r-re circulation mode ............................ 17 9
Air-water duct .......................................... 538
Ke eping free ........................................5 38
Airbag ........................................................ .42
Ac tivation .............................................. 37
Fr ont airbag (driver, front passenger) ....42
Ins tallation locations ............................ .42Knee airbag ........................................... 42
Overview ............................................... 42
PA SSENGER AIR BAG indicator lamp .... .47
Pr otection ..............................................44
Re duced pr otection ...............................45
Side impact airbag ................................ 42
Wi ndow airbag ....................................... 42
Ai rflow ...................................................... 175
AIRM ATIC ................................................ .262
Setting ................................................. 265
Suspension .......................................... 262
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambiance light Setting (Rear Seat En tertainment
Sy stem) ............................................... 525 Index
681

Ambient lighting
Setting (multimedia sy stem) ................1 64
Android Auto ............................................ 473
Connecting a mobile phone ................ .474
Ending ................................................ .475
Information .......................................... 474
Overview ..............................................4 73
Sound settings ..................................... 475
Tr ans ferred vehicle data ......................4 75
Android Auto™
Control using the application buttons
.............................................................4 75
Animals Pets in theve hicle ..................................81
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft ala rmsystem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Ad ditional door lock .............................. 86
Immobiliser .........................................1 08Anti-theft pr
otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay™ ....................................... 472
Connecting an iPhone ®
...................... .472
Control using the application buttons
.............................................................4 73
Ending ................................................. 473
No tes ................................................... 472
Overview ..............................................4 72
Sound settings ..................................... 473
Tr ans ferred vehicle data ......................4 75
Asht ray
Fr ont centre console ........................... 15 0
Assistance sy stems
see Driving saf ety sy stem
Assistant display Menu (on-board computer) .................. 325 ASS
YST PLUS ........................................... 531
Battery disconnection pe riods .............5 32
Displ aying the service due date ........... 531
Fu nction/no tes ................................... 531
Re gular maintenance work .................. 531
Special service requ irements .............. 531
ATA (anti-theft ala rmsystem) ................ .108
Deactivating the alarm ........................ 109
Fu nction .............................................. 108
Fu nction of interior pr otection .............1 10
Priming/deactivating interior pr otec‐
tion .......................................................1 11
Priming/deactivating tow- aw ay pro‐
te ction ................................................. 11 0
To w- aw ay protection function .............. 109
AT TENTION ASSI ST.......................... 300, 301
Fu nction .............................................. 300
Setting ................................................. 301
Sy stem limitations ...............................3 00
At tention assistant
see ATTENTION ASSIST
Au gmented reality
see Route guidance with augmented reality 682
Index

Au
thorised workshop
see Qualified specialist workshop
Au tomatic car wash mode
Ac tivating ............................................ 540
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................15 8
Au tomatic engine start (ECO start/
sto p function) .......................................... 19 8
Au tomatic engine stop (ECO start/
sto p function) .......................................... 19 8
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff ........................................... 46, 47
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 46
PA SSENGER AIR BAG indicator lamp .... .47
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .173 Au
tomatic seat adjustment
Setting ................................................ .123
Au tomatic transmission
DIRECT SELECT le ver ......................... .205
Drive program display ......................... 204
Drive programs ................................... .203
DY NA MIC SELECT switch .................... 203
Engaging drive position ....................... 207
Engaging neutral ................................. 206
Engaging park position ........................ 207
Engaging reve rsege ar ........................ .206
Kickdown ............................................ 209
Manual gear changing ........................ .207
St eering wheel gearshift paddles ........ 207
Tr ansmission position display .............. 205
Tr ansmission positions ........................ 205
Axle load Perm issible .......................................... 595
Tr ailer operation .................................. .610 B
Bag hook .................................................. 14 5
Baidu CarLife Trans ferred vehicle data ......................4 75Ball ne
ck
Extending/r etra cting ........................... 312
BA S (Brake Assist Sy stem) .................... .229
Battery Key ........................................................ 84
Re mo tecontrol (s tationary heater) ...... 185
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 562
Charging .............................................. 561
No tes ................................................... 557
No tes (s tarting assis tance and
ch arging) ............................................ .559
Re placing ............................................ 562
St arting assis tance .............................. 561
Belt see Seat belt
Bic ycle rack
Tr ailer operation .................................. .316
Blind Spot Assi st..................................... 306
Ac tivating/deactivating ...................... .309
Fu nction .............................................. 306
Sy stem limitations ...............................3 06 Index
683

Blo
wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
................................................ 391
Information .......................................... 390
Setting up an Internet connection ....... 488
Switching on/off ................................. 391
Boot lid see Tailgate
Brac ket
MBUX rear tablet ................................ .521
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake fluid Notes .................................................. 603
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 235
Brakes ABS (Anti-lock Braking Sy stem) ........... 229
Ac tive Brake Assi st.............................. 235
Ad aptive brake lights .......................... .241 BA
S (Brake Assi stSystem) .................. 229
Driving tips .......................................... 19 3
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 235
HOLD function .....................................2 60
Limi ted braking ef fect (salt-trea ted
ro ads) .................................................. 19 3
New/replaced brakepads/brake
discs .................................................... 19 3
Ru nning-in no tes ..................................1 93
Braking assi stance
see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions .............. 18
To w- starting ........................................ 566
To wing away ........................................ 563
Tr ansporting theve hicle ......................5 64
Wheel change ...................................... 584
Breakdown see Flat tyre
Bu rm ester ®
high-end 3D sur round
sound sy stem
Ad justing the balance/fader ................5 18
Ad justing the sound optimisation ........ 51 8Ad
justing treble, mid-range and bass
settings ................................................ 51 8
Au tomatic volume adjustment ............ .518
Calling up the sound menu .................. 51 8
Information ..........................................5 17
Selecting the sound profile .................. 519
Burmes ter®
sur round sound sy stem .....5 16
Ad justing the balance/fader ................5 17
Ad justing the sound focus .................... 517
Ad justing treble, mid-range and bass
settings ................................................ 516
Au tomatic volume adjustment ............ .517
Calling up the sound menu .................. 516
Information .......................................... 516
Selecting the sound profile .................. 517
Buttons Steering wheel .................................... 320 C
Call list Deleting ............................................... 466
Making a call ....................................... 465
Overview ............................................. 465
Selecting options ................................ 465
Selecting options for suggestions ........ 465 684
Index