MERCEDES-BENZ GLS SUV 2022 Owners Manual

Display messages
Possible causes/consequences and P Solutions &
WARNING Risk of injur y or death when using a child restraint system while the front passenger airbag is ena-
bled
If you secure a child in a child restraint system on the front passenger seat and the front passenger airbag is ena-
bled, t
he front passenger airbag can deploy in the event of an accident.
The child could be struck by the airbag. 
Ensure, both before and during the journey, that the status of the front passenger airbag is correct.
NEVER use a rearward facing child restraint on a seat protected by an ACTIVE AIRBAG in front of it, DEATH or
SERIOUS INJUR
Y to the CHILD can occur. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. 
Make sure that no objects are trapped under the front passenger seat. 
Check the status of automatic front passenger airbag actuation (  pag
e 54).
If necessary, consult a q
ualiNed specialist workshop immediately.
PRE-SAFE inoperative See
Owner's Manual *
The PRE!

Key
Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions
Place the key in the
marked space See Owner's
Manual * Key detection is malfunctioning. 
Change the location of the key in the vehicle. 
Place the key in the slot for starting the engine with the key (  pag e 194).Lights
Display messages
Possible causes/consequences and P Solutions
:
Left dipped beam (e

xample)* The corresponding light source is defective. 
Drive on carefully. 
Consult a qualiNed specialist workshop immediately.
% LED light sources: the display message for the corresponding light appears only when all the light-emitting diodes
in t

he light are faulty.
: Malfunction See Owner's
Manual * The exterior lighting is malfunctioning. 
Consult a q
ualiNed specialist workshop.
* Vehicles with a trailer hitch: a fuse ma
y have blown. 
Stop the vehicle in accordance with the tr
aPc conditions. 
Check the fuses and replace them if necessary (  pag
e 399). Display messages and warning/indicator lamps
451

Display messages
Possible causes/consequences and P Solutions
:
Automatic driving lights
inoperative * The light sensor for automatic driving lights is malfunctioning. 
Consult a qualiNed specialist workshop.
:
Active Light System inoper-
ative * The active headlamps are malfunctioning. 
Consult a q
ualiNed specialist workshop.
:
Switch on headlamps * You are driving without low-beam headlamps. 
Turn the light switch to the L or X position.
:
Switch off lights * You are leaving the vehicle and the lights are still switched on. 
Turn the light switch to the X position.452
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
:
Intelligent Light System
inoperative * The Intelligent Light System is malfunctioning. The lighting system continues to function properly without the functions
of t he Intelligent Light System. 
Consult a q
ualiNed specialist workshop.
Adaptive Highbeam Assist
Plus currently unavailable
See Owner's Manual * Adaptive Highbeam Assist Plus is temporarily unavailable.
The sy
stem limits have been reached (  page 166).
Once the cause of the problem is no longer present, the system will be available again. The Adaptive Highbeam
Assist Plus available again display message will appear. 
Drive on 
Operate the high beam manually until Adaptive High Beam Assist Plus is available again.
Adaptive Highbeam Assist
Plus inoperative * Adaptive Highbeam Assist Plus is malfunctioning. 
Drive on
or 
Stop the vehicle in accordance with the tr
aPc conditions and restart the vehicle. 
If the display message does not disappear: consult a q ualiNed specialist workshop. 
Until then, operate the high beam manually.
Hazard warning lamps mal-
functioning * The hazard warning lamp switch is malfunctioning. 
Consult a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
453

Climate control
Display messages
Possible causes/consequences and P Solutions
;
inoperative See Owner's
Man. * The stationary heater is temporarily malfunctioning. 
When the vehicle is stationary on a level surface and the engine has cooled down, make up to four attempts to
switc
h on the stationary heater, waiting several minutes between each attempt. 
If the stationary heater does not switch on, consult a q
ualiNed specialist workshop.
;
inoperative Battery low * The on-board electrical system voltage is too low.
The s
tationary heater has switched itself oM. 
Drive an extended distance until the battery has reached a suPcient c
harge level again.
;
inoperative Refuel vehicle * There is too little fuel in the fuel tank. The stationary heater cannot be switched on. 
Refuel the vehicle. 454
Display messages and warning/indicator lamps

Vehicle
Display messages
Possible causes/consequences and P Solutions
Update successfully com-
pleted * Installation of the
sosw are update has been successfully completed ( page 325).
Update failed Software
remains unchanged * An error occurred during installation of the
sosw
are update ( page 325).
The previous sosware release remains in place.
Update failed * An error occurred during installation of the sosw
are update ( page 325).
Make a Mercedes me call via the overhead control panel ( page 341).
r
Vehicle is operational
Switch off ignition before
exiting * You are leaving the vehicle in a ready-to-drive state. 
Get out of the vehicle, secure it against rolling away and take the key with you. 
If you do not leave the vehicle, switch oM t
he electrical consumers, e.g. the seat heating. Otherwise, the 12!

Display messages
Possible causes/consequences and P Solutions
ï
Trailer coupling extending

Display messages
Possible causes/consequences and P Solutions 
Uncouple the coupled trailer and secure it against rolling away. 
If the ball neck has been retracted: initiat e a new swivel movement ( page 301).
The ball neck will engage vertically in the locked position and then engage beneath the bumper. 
If the ball neck has been extended: initiat
e a new swivel movement ( page 301).
The ball neck will engage beneath the bumper.
If the display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not locked. 
Do not couple up the trailer. Drive on without the trailer. Note the reduced ground clearance due to the unlocked
ball nec
k. 
Consult a q
ualiNed specialist workshop.
Side running board not
retracted Observe the
excess width of the vehicle * Mercedes-Maybach vehicles: the running boards are not retracted.
= The r

unning boards can be retracted via the multimedia system only when the vehicle is stationary ( page 91).
= The running boards and the side skirt must be free of dirt, ice and snow. Otherwise, they are unable to retract. 
Clean the running boards ( pag
e 378). 
Repeat the retraction of the running boards ( pag
e 90).
If the running boards cannot be retracted again, consult a qualiNed specialist workshop. 
If the running boards are not retracted, check the excess width of the vehicle. Display messages and warning/indicator lamps
457