MERCEDES-BENZ GLS SUV 2019 Owners Manual

Display messages
Possible causes/consequences and M
MSolutions
If th e bat tery charge leve l is too lo w: #
Char gethe batter y.
To appl y: #
Switch off the ignition.
The electric parking brake is applied automaticall y.
If th e electric parking brake should not be applied, e.g. when washing theve hicle in an automatic car wash or when
having theve hicle towe d, lea vethe ignition switched on. This does not include having theve hicle towe d with the
re ar axle raised.
If th e electric parking brake is not applied automatically: #
Switch off the ignition and switch it back on. #
Release and then apply the electric parking brake manually (/ page 226).
If it is still not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. #
Where necessar y,also safeguard the par kedve hicle against rolling away.
To release: #
Ifth e conditions for auto matic release are fulfilled and the electric parking brake is not released automaticall y,
re lease the electric parking brake manually (/ page 226).61 8
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
If it is still not possible torelease the electric parking brake: #
Do not continue driving under any circums tances. Consult a qualified specialist workshop.
J
Check brake fluid level *T
here is insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. #
Consult a qualified specialist workshop. #
Do not top up the brake fluid. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Do not top up the brake fluid. #
Consult a qualified specialist workshop.
Check brake pads See
Owner's Manual *T
he brake pads ha vereached thewe ar limit. &
WARNING Risk of accident due torestricted braking po wer
When the brake pads ha vereached their wear limit, the braking po wer may be restricted. Display messages and
warning/indicator lamps 619

Display messages
Possible causes/consequences and M
MSolutions #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Consult a qualified specialist workshop.
6 Restraint sys. malfunction
Consult workshop *T
herestra int sy stem is faulty (/ page37). &
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. De
tection of a restra int sy stem fault:
R The restra int sy stem warning lamp 6does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y. #
Consult a qualified specialist workshop immediatel y.
6
Front left malfunction Con-
sult workshop (Example) *T
he cor responding restra int sy stem is faulty (/ page37). &
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. 620
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem fault:
R The restra int sy stem warning lamp 6does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y. #
Consult a qualified specialist workshop immediatel y.
6
Left windowbag malfunc-
tion Consult work-
shop (Example) *T
he cor responding windowbag is malfunctioning (/ page37). &
WARNING Risk of inju ryor fata l injury due toa malfunction in the window airbag
The window airbag might be triggered unintentionally or might not be triggered at all in theev ent of an accident
with high deceleration. #
Have the window airbag checked and repaired immediately at a qualified specialist workshop. #
Consult a qualified specialist workshop immediatel y.
Front-passenger airbag dis-
abled See Owner's Manual *T
he front passenger airbag has been deactivated although an adult or a person with an adult stature is on the front
passenger seat. If additional forc es are applied tothe seat, thewe ight the sy stem de tects may be too lo w. Displ
aymessa ges and warning/indicator lamps 621

Display messages
Possible causes/consequences and M
MSolutions &
WARNING ‑ Risk of inju ryor eve nfa ta l injury when the front passenger airbag is disabled
If th e front passenger airbag is disabled, It will not be deplo yed in theeve nt of an accident and cannot pe rform
its intended pr otective function.
A person in the front passenger seat could then, forex ample, come into con tact wi th theve hicle interior, espe‐
cially if the person is sitting too close tothe dashboard. #
Beaware of thest atus of the front passenger airbag bo thbefore and during the journe y. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Check thest atus of the automatic front passenger airbag shutoff (/ page47). #
If necessar y,consult a qualified specialist workshop immediatel y.
Front-passenger airbag
enabled See Owner's Man-
ual *T
he front passenger airbag is enabled while theve hicle is in motion:
R even when a child, a small adult or an object weighing less than the sy stem weight thre shold is located on the
front passenger seat
R even when the front passenger seat is not occupied
The sy stem may de tect objects or forc es that are adding tothewe ight applied tothe seat. 622
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions &
WARNING Risk of inju ryor fata l injury when using a child restra int sy stem while the front passenger airbag
is enabled
If yo u secure a child in a child restra int sy stem on the front passenger seat and the front passenger airbag is
enabled, the front passenger airbag can deploy in theeve nt of an accident.
The child could be stru ck bythe airbag. #
Ensure, bo thbefore and during the journe y,that thest atus of the front passenger airbag is cor rect.
NEVER use a rear wa rdfacing child restra int on a seat pr otected byan ACTIVE FRONT AIRB AGin front of it;
DE ATH or SERIOUS INJU RYtotheCH ILD can occur. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Check thest atus of the automatic front passenger airbag shutoff (/ page47). #
If necessar y,consult a qualified specialist workshop immediatel y.
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 pa ckage: Active Brake Assi stistemp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page 235). #
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. Display messages and
warning/indicator lamps 623

Display messages
Possible causes/consequences and M
MSolutions #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine.
Active Brake Assist Func-
tions limited See Owner's
Manual *
Ve hicles with Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS is malfunctioning.
Ve hicles without Driving Assistance Package: Active Brake Assi stis malfunctioning. #
Consult a qualified specialist workshop.
PRE-SAFE inoperative See
Owner's Manual *
PRE‑SAFE ®
functions are malfunctioning. #
Consult a qualified specialist workshop.
PRE-SAFE impulse side
inoperative See Owner's
Manual *
PRE-SAFE ®
Impulse Side is malfunctioning or inoperative af ter having already been triggered. #
Consult a qualified specialist workshop.
Mercedes me connect
Services limited See Own-
er's Manual *S
ervice limited.
At least one of the main functions of the Mercedes me connect sy stem is malfunctioning. #
Obser vethe no tes on the diagnostics connection (/ page 30). #
Consult a qualified specialist workshop. 624
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
G Inoperative *A
t least one main function of the Mercedes me connect sy stem or of the SOS emer gency call sy stem is malfunc‐
tioning. #
Consult a qualified specialist workshop. Driving sy
stems Display messages
Possible causes/consequences and M
MSolutions
À ATTENTION ASSIST: Take a
break! *A
TTENTION ASSIST has de tected fatigue or an increasing la ckof concentration on the part of the driver
(/ page 300). #
If necessar y,take a break.
À
ATTENTION ASSIST inoper-
ative *A
TTENTION ASSIST is malfunctioning. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 625

Display messages
Possible causes/consequences and M
MSolutions
 Lowering *T
hevehicle le vel may be lo weredfo rth efo llowing reasons:
R you ha veselected a dif fere nt drive program.
R you ha veexc eeded the speed limit.
R you ha vechanged theve hicle le velby pressing the button.
R Operation with a trailer or bicycle rack:If an electrical connection has been cor rectly made, you ha veexcee‐
ded the speed limit.
R You ha veswitched on there ar fog lamp in the off-road le vel +3.
Á
Vehicle rising *Y
our vehicle is adjusting tothe le velyo u ha veselected.
Vehicle rising Please wait *T
hevehicle le vel is too lo w.The vehicle is raised tothe selected vehicle le vel. #
Wait until the display message disappears before pulling away.
ä Fault Drive at max. 80
km/h *O
ne or more main functions of the E- ACTIVE BODY CONTROL is malfunctioning. The sy stem is deactivated.
* NO
TEThe vehicle's suspension and damping behaviour has changed significantl y,theve hicle body may tilt
heavily tothe side during cornering. #
Reduce vehicle speed. Drive on carefull y.626
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Reduce theve hicle speed considerably before taking a cur ve. #
Avoid sudden steering mo vements. #
Continue driving careful lyat maximum 80 km/h. #
If possible, stop theve hicle when safe todo so in the tra ffic conditions and switch the ignition off and on again. #
Visit a qualified workshop.
Please reduce speed *Y
ou are driving toofast forth e selected vehicle le vel. #
Drive more slowly and then select the desired vehicle le vel again.
Yo u are driving tooqu ickly with a trailer or the trailer tow hit chsoc ket is being used, e.g. for a rear-moun ted cycle
ra ck. #
Read the information on towing a trailer.
Active Steering Assist cur-
rently unavailable See Own-
er's Manual *A
ctive Steering Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page 253). #
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
If necessar y,clean the windscreen in the camera's field of vision. #
Check the tyre pressure if necessar y. Displ
aymessa ges and warning/indicator lamps 627