MERCEDES-BENZ GLS SUV 2022 Owners Manual

Warning/indicator lamp Possible causes/consequences and
P Solutions

Warning/indicator lamp Possible causes/consequences and
P Solutions
Note the messages on the instrument display. 
Consult a qualiNed specialist workshop. Driving safety systems
Warning/indicator lamp Possible causes/consequences and
P Solutions
%
ABS w
arning lamp * The yellow ABS warning lamp is lit while the vehicle is running.
ABS is malfunctioning.
If an additional w
arning tone sounds, EBD is malfunctioning.
Other driving systems and driving safety systems may also be malfunctioning. 
Note the messages on the instrument display. &
WARNING Ther
e is a risk of skidding if EBD or ABS is malfunctioning
The wheels may lock during braking.
The s
teerability and braking characteristics are heavily impaired and the braking distance may increase. In addition,
other driving safety systems are switched oM. 
Drive on carefully. 
Have the brake system checked immediately at a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
519

Warning/indicator lamp Possible causes/consequences and
P Solutions

Warning/indicator lamp Possible causes/consequences and
P Solutions&
WARNING Risk of skidding when dr iving with ESPn
deactivated
ESP n
does no
t act to stabilise the vehicle. The availability of further driving safety systems is also limited. 
Drive on carefully. 
Deactivate ESP n
onl
y for as long as the situation requires.
If ESP n
canno
t be activated, ESP n
is malfunctioning. 
Have ESP n
c
hecked immediately at a qualiNed specialist workshop. 
Observe the notes on deactivating ESP n
( pag
e 233).Tyre pressure monitor
Warning/indicator lamp Possible causes/consequences and
P Solutions
w
T
yre pressure monitoring
system warning lamp Oashes*The yellow tyre pressure monitor warning lamp (pressure loss/malfunction)
Oashes f
or approximately one minute and
then remains lit.
The tyre pressure monitoring system is malfunctioning. &
WARNING Ther
e 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
521

Warning/indicator lamp Possible causes/consequences and
P Solutions
Tyres with insuPcient tyr e pressure may impair the driving characteristics as well as steering and braking. 
Have the tyre pressure monitoring system checked at a q
ualiNed specialist workshop. w
T
yre pressure monitoring
system warning lamp lights
up * The yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has detected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due t
o insuPcient tyre pressure
= The tyr
es can burst.
= The tyres can wear excessively and/or unevenly.
= The driving characteristics as well as the steering and braking may be greatly impaired.
You could then lose control of the vehicle. 
Observe the recommended tyre pressures. 
Adjust the tyre pressure if necessary. 
Stop the vehicle in accordance with the tr
aPc conditions. 
Check the tyre pressure and the tyres. 522
Display messages and warning/indicator lamps

1, 2, 3 ...
48 V on-boar d electrical system
Operating safety...................................... 25
360° camera Care...................................................... 378
Function................................................ 284
Switching automatic mode on/oM
(reversing camera)................................. 288 A
A/C function A

ctivating/deactivating (operating
unit)....................................................... 180
MBUX.................................................... 181
ABS , Anti-lock braking system...................... 233
Acceleration Kickdown............................................... 214
Optimised acceleration.......................... 196
Accident ERA-GLONASS test mode...................... 355
Accident, emergency call ............................. 352
Acoustic locking veriNcation signal, acti-
vating/deactivating........................................ 83 Active Blind Spot Assist
Br
ake application................................... 265
Exit warning........................................... 263
Function................................................ 263
Trailer operation..................................... 265
Active Brake Assist Function................................................ 255
Setting................................................... 259
Active Distance Assist DISTRONIC Activate/deactivate variable limiter........ 246
Activating/deactivating.......................... 246
Active Emergency Stop Assist................ 254
Calling up a speed................................. 246
Function................................................ 243
Increasing/decreasing the speed........... 246
Route-based speed adaptation............... 248
Storing a speed...................................... 246
Active Lane Keeping Assist Activating/deactivating.......................... 268
Function................................................ 266
Setting the sensitivity............................. 268
Trailer operation..................................... 266
Active light function ..................................... 164 Active Parking Assist
Exiting a par king space.......................... 295
Function................................................ 292
Parking.................................................. 294
Active Service System PLUS,
ASSYST PLUS.............................................. 365
Active Speed Limit Assist ............................. 248
Active Steering Assist Activating/deactivating.......................... 254
Active Emergency Stop Assist................ 254
Function................................................ 252
Active Stop-and-Go Assist Function................................................ 250
Active TraPc Jam Assist
Activating/deactivating.......................... 250
Adaptive brake lights .................................... 238
Adaptive cruise control , Active Distance
Assist DISTRONIC........................................ 248
Adaptive Highbeam Assist Plus Function................................................ 166
Switching on/oM .................................... 167
AdBlue n
Additives................................................ 431 Index
523

Capacity................................................ 432
N
otes..................................................... 221
Purity..................................................... 431
Topping up............................................. 221
Additional cushion Leg rest................................................. 116
Rear head restraint................................ 123
Additional door lock ....................................... 85
Additives AdBlue n
......................................... 221, 431
Engine oil............................................... 432
Fuel....................................................... 429
Aser-sales service, ASSYST PLUS................. 365
Air conditioning menu Air distribution....................................... 181
Calling up.............................................. 180
Climate control...................................... 181
Ionisation............................................... 183
Rear compartment climate control......... 181
Stationary heater/ventilation................. 186
Air distribution MBUX multimedia system....................... 181
Setting................................................... 179 Air freshener system
.................................... 183
Air inlet........................................................ 373
Air pressure ................................................. 403
Air suspension , AIRMATIC............................ 268
Air vents Glove box............................................... 190
Setting................................................... 188
Air/water duct ............................................. 373
Airbag, Occupant safety Automatic front passenger airbag shut
oM ............................................................ 52
Cushionbag.............................................. 49
Deployment............................................. 44
Front airbag............................................. 49
Overview.................................................. 49
PASSENGER AIR BAG indicator lamps...... 54
Protection................................................ 50
Reduced protection.................................. 51
Warning lamp........................................... 44
AirOow Setting................................................... 179
AIRMATIC Air suspension....................................... 268 Setting entering/exiting level................. 272
Se
tting the vehicle level......................... 270
Vehicle levels......................................... 268
Alarm system , ATA....................................... 106
All-wheel drive , 4MATIC................................ 217
Ambient lighting........................................... 168
Animals , Pets in the vehicle............................ 81
Anti-lock braking system , ABS...................... 233
Anti-thes alarm system , ATA......................... 106
Anti-thes protection, ATA
Additional door lock................................. 85
Immobiliser............................................ 106
Approval numbers ........................................ 424
Apps Mercedes me calls................................. 342
Mercedes me connect........................... 346
Assembly licence plate, front .......................... 26
Assistance system , Driving safety system..... 232
ASSYST PLUS Battery disconnection periods................ 366
Service interval display.......................... 365
Service requirements............................. 365 524
Index

ATA
, Anti-thes protection
Deactivating the alarm........................... 107
Function................................................ 106
Interior protection.................................. 108
Tow-away protection...................... 107, 108
ATTENTION ASSIST Function................................................ 238
Setting................................................... 240
Attention assistant, ATTENTION ASSIST........ 238
Authorised workshop ...................................... 37
Automatic car wash ...................................... 373
Automatic car wash mode .................... 373, 375
Automatic climate control ............................ 181
Automatic distance control , Active Dis-
tance Assist DISTRONIC............................... 243
Automatic driving lights................................ 162
Automatic emergency call , Mercedes-
Benz emergency call system......................... 353
Automatic engine start/stop , ECO start/
stop function................................................ 203
Automatic front passenger airbag shutoM
Function.................................................. 52 PASSENGER AIR BAG indicator lamps...... 54
A
utomatic measures aser an accident ,
Occupant safety............................................. 58
Automatic mirror folding function................. 177
Automatic seat adjustment ........................... 124
Automatic transmission Changing gear........................................ 210
DIRECT SELECT lever............................. 210
Drive programs...................................... 207
DYNAMIC SELECT switch....................... 207
Engaging drive position.......................... 213
Engaging neutral.................................... 212
Engaging reverse gear............................ 211
Kickdown............................................... 214
Manual shising ...................................... 213
Selecting park position........................... 212
Steering wheel gearshis paddles............ 213
Transmission position display................. 210
Transmission positions........................... 210
Autonomous braking .................................... 255
Axle load Trailer operation..................................... 443 B
Bac k seat ..................................................... 114
Bag hook ..................................................... 149
Ball neck Extending/retracting.............................. 301
Extending/retracting (MBUX multime-
dia system)............................................ 302
Trailer coupling...................................... 303
BAS , Brake Assist System............................. 233
Battery (12 V battery) Charging................................................ 393
Notes..................................................... 389
Replacing............................................... 394
Starting assistance................................ 391
Battery (key) .................................................. 84
Battery (remote control) ............................... 187
Battery (starter battery) Charging via Remote Online................... 194
Belt, Seat belt................................................ 45
Bicycle rack Load capacity........................................ 442
Trailer operation..................................... 305 Index
525

Blind Spot Assist, A
ctive Blind Spot Assist
Activating/deactivating.......................... 266
Function................................................ 263
BlueTec AdBlue n
................................................. 221
Bluetooth n
................................................... 341
Bonnet Opening/closing.................................... 367
Brake Assist Active Brake Assist................................. 255
Brake Assist System............................... 233
Brake Assist System , BAS............................. 233
Brake Nttings ................................................ 195
Brake Ouid .................................................... 434
Brake force distribution , EBD........................ 236
Brake lamps Adaptive brake lights.............................. 238
Brakes ABS (Anti-lock Braking System).............. 233
Active Brake Assist................................. 255
Adaptive brake lights.............................. 238
BAS (Brake Assist System)..................... 233 Driving tips............................................ 197
EBD (Electr onic Brakeforce Distribu-
tion)....................................................... 236
HOLD function....................................... 237
Limited braking eMect (salt-treated
roads).................................................... 197
New/replaced brakepads/brake disks... 195
Post-collision brake.................................. 58
Running-in notes.................................... 195
Braking assistance Brake Assist System............................... 233
Breakdown Flat tyre................................................. 384
Overview of aids...................................... 18
Tow-starting........................................... 399
Towing away.......................................... 396
Transporting the vehicle......................... 397
Wheel change........................................ 411
Buttons Steering wheel....................................... 311 C
Calls Mer

cedes me......................................... 341 Camera
360° Camer
a......................................... 284
Cleaning................................................ 378
Information............................................ 231
Reversing camera.................................. 282
ROAD SURFACE SCAN........................... 276
Selecting the view.................................. 287
Car key .......................................................... 82
Car wash ...................................................... 373
Car-to-X communication Hazard warnings.................................... 335
Care 360° camera......................................... 378
Air/water duct....................................... 373
Automatic car wash............................... 373
Car parts............................................... 378
Decorative foil........................................ 377
Display................................................... 379
Exterior lighting...................................... 378
Head-up display..................................... 379
High-pressure cleaner............................ 375
Paint...................................................... 376
Plastic trim............................................ 379
Real wood/trim elements...................... 379 526
Index

Roof lining............................................. 379
R unning boards...................................... 378
Trailer hitch............................................ 378
Vehicle interior....................................... 379
Washing by hand.................................... 376
Caring for plastic trim ................................... 379
Caring for real wood ..................................... 379
Caring for rims............................................. 378
Caring for the steering wheel ........................ 379
Caring for trim elements............................... 379
Central locking system Button..................................................... 86
Key.......................................................... 83
Charging 12 V battery........................................... 393
USB port................................................ 155
Wirelessly charging a mobile phone........ 156
Checking the coolant level ........................... 371
Child safety lock Rear door................................................. 79
Side window (rear)................................... 81
Child seat Approval categories................................. 64 Basic instructions.................................... 58
F itting ISOFIX/i-Size................................ 68
Front passenger seat............................... 77
Recommendations for child restraint
systems................................................... 62
Risks/dangers......................................... 59
Seats suitable for belt-secured child
restraint systems..................................... 73
Seats suitable for i!