2016 MERCEDES-BENZ GLS SUV light

Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative inoperative See
SeeOwn‐
Own‐
er's Man.
er's Man. EBD (electronic brake force distribution), ABS and ESP
®
are faulty.
Other driving and driving safety systems may also be malfunctioning. In addition, the ÷,åand! warning lamps light up in the
instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you brake
hard, for example.
The steerability and braking characteristics may be severely affected. The braking distance may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Consult a qualified specialist workshop immediately. !
Turn on the igni‐ Turn on the igni‐
tion tion
to
torelease
release the
the
parking brake
parking brake The red
!indicator lamp lights up.
You attempted to release the electric parking brake while the ignition
was switched off.
X Key: turn the key to position 1in the ignition lock.
X KEYLESS-GO: switch on the ignition. !
Release parking Release parking
brake brake The red
!indicator lamp flashes and a warning tone sounds. A
condition for automatic release of the electric parking brake is not
fulfilled (Y page 170).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. The red
!indicator lamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking brake
(Y page 170). !
Parking brake See Parking brake See
Owner's Manual Owner's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake lever for at least ten seconds.
X Shift the transmission to position P.
X Consult a qualified specialist workshop. Display
messages
261On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp and the red !indicator lamp are lit.
The electric parking brake is malfunctioning.
To release:
X Turn the ignition off and then back on.
X Release the electric parking brake manually.
or
X Release the electric parking brake automatically (Y page 170).
If the electric parking brake still cannot be released:
X Do not drive on.
X Consult a qualified specialist workshop. The red
!indicator lamp flashes and the yellow !warning lamp
is lit.
The electric parking brake is malfunctioning.
To release:
X Turn the ignition off and then back on.
X Release the electric parking brake manually.
To apply: X Turn the ignition off and then back on.
X Apply the electric parking brake manually.
If the red !indicator lamp continues to flash:
X Do not drive on.
X Secure the vehicle against rolling away (Y page 370).
X Shift the transmission to position P.
X Turn the front wheels towards the kerb.
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up. The red !indicator lamp
flashes for about ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit.
The electric parking brake is malfunctioning.
X Turn the ignition off and then back on.
X Apply the electric parking brake.
If you cannot apply the electric parking brake:
X Shift the transmission to position P.
X Consult a qualified specialist workshop.
If it is not possible to release the electric parking brake:
X Release the electric parking brake automatically (Y page 170).
If the electric parking brake still cannot be released:
X Consult a qualified specialist workshop. 262
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp lights up. If you manually apply or
release the electric parking brake, the red !indicator lamp
flashes.
The electric parking brake is malfunctioning. The electric parking
brake cannot be applied manually.
X Shift the transmission to position P.
X Consult a qualified specialist workshop. !
Parking brake inop‐ Parking brake inop‐
erative erative The yellow
!warning lamp lights up. The red !indicator lamp
flashes for about ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
X Rectify the cause of the overvoltage or undervoltage, e.g. by charg-
ing the battery or restarting the engine.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be applied or released: X Turn the ignition off and then back on.
X Apply or release the electric parking brake.
If the electric parking brake still cannot be released:
X Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied:
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up and the red !indicator
lamp flashes.
The electric parking brake cannot be applied manually.
X Shift the transmission to position P.
X Consult a qualified specialist workshop. J
Check brake fluid Check brake fluid
level level There is insufficient brake fluid in the brake fluid reservoir. In addition,
the J warning lamp in the instrument cluster lights up and a warn-
ing tone sounds.
G WARNING
Braking efficiency may be impaired.
There is a risk of an accident.
X Stop the vehicle immediately, paying attention to road and traffic
conditions. Do not continue driving.
X Secure the vehicle against rolling away (Y page 168).
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This does not correct the fault. #
Check Check
brake
brakepad
padwear
wear The brake pads/linings have reached their wear limit.
X Consult a qualified specialist workshop. Display
messages
263On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions 6
Restraint sys. mal‐ Restraint sys. mal‐
function Consult function Consult
workshop workshop The restraint system is malfunctioning.
The
6 warning lamp also lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Consult a qualified specialist workshop immediately.
Further information about the restraint system (Y page 42).6
Front left malfunc‐ Front left malfunc‐
tion Consult work‐ tion Consult work‐
shop shopor
Front right
Front right
malfunction
malfunction Consult
Consult
workshop
workshop The restraint system is malfunctioning at the front on the left or right.
The 6 warning lamp also lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Consult a qualified specialist workshop immediately. 6
Rear left malfunc‐ Rear left malfunc‐
tion Consult work‐ tion Consult work‐
shop shop
orRear right
Rear right
malfunction
malfunction Consult
Consult
workshop
workshop The restraint system has malfunctioned at the rear on the left or right.
The 6 warning lamp also lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Consult a qualified specialist workshop immediately. 6
Rear Rear
centre
centre malfunc‐
malfunc‐
tion Consult work‐
tion Consult work‐
shop shop The restraint system is malfunctioning at the rear centre. The
6
warning lamp also lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Consult a qualified specialist workshop immediately. 6
Left windowbag mal‐ Left windowbag mal‐
function Consult function Consult
workshop workshoporRight
Right
windowbag malfunc‐
windowbag malfunc‐
tion Consult work‐ tion Consult work‐
shop shop The left-hand or right-hand windowbag is malfunctioning. The
6
warning lamp also lights up in the instrument cluster.
G WARNING
The left-hand or right-hand windowbag may either be triggered unin-
tentionally or, in the event of an accident, not triggered at all.
This poses an increased risk of injury.
X Consult a qualified specialist workshop immediately. Display
messages
267On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Front-passenger
Front-passenger
airbag airbag
disabled
disabled See
See
Owner's Manual
Owner's Manual The front-passenger front airbag is disabled during the journey
although:
R an adult
or
R a person of the corresponding stature is on the front-passenger seat
If additional forces are applied to the seat, the weight the system
detects may be too low.
G WARNING
The front-passenger front airbag does not deploy during an accident.
This poses an increased risk of injury.
X Stop the vehicle immediately, paying attention to road and traffic
conditions.
X Secure the vehicle against rolling away (Y page 168).
X Switch the ignition off.
X Have the occupant on the front-passenger seat step out of the
vehicle.
X Make sure that the seat is unoccupied, close the front-passenger
door and switch on the ignition.
X Observe the PASSENGER AIR BAG indicator lamps in the centre
console and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
R A self-diagnosis is carried out. The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps light up simultaneously for approximately six seconds.
R The PASSENGER AIR BAG OFF indicator lamp must then light up
and remain lit after the self-diagnosis. If the indicator lamp is on,
the automatic front-passenger front airbag deactivation system
has disabled the front-passenger front airbag (Y page 50)
R The Front-passenger airbag enabled See Owner's Man‐
Front-passenger airbag enabled See Owner's Man‐
ual ual orFront-passenger airbag disabled See Owner's
Front-passenger airbag disabled See Owner's
Manual
Manual display messages must not be shown in the multifunction
display
X Wait for a period of at least 60 seconds until the necessary system
checks have been completed.
X Make sure that the display messages do not appear in the multi-
function display.
If these conditions are met, the front-passenger seat can be occupied again. Whether the PASSENGER AIR BAG OFF or ON indicator lamp
remains lit or goes out depends on how the automatic front-passenger
front airbag deactivation system classifies the occupant.
If the conditions are not met, the system is not operating correctly.
X Consult a qualified specialist workshop immediately.
Further information on the automatic front-passenger front airbag
deactivation feature (Y page 50).268
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Front-passenger
Front-passenger
airbag enabled See airbag enabled See
Owner's Manual Owner's Manual The front-passenger front airbag is enabled during the journey
although:
R a child, a small adult or an object weighing less than the system
weight threshold is located on the front-passenger seat
or
R the front-passenger seat is not occupied
The system may detect objects or forces that are placing additional
weight on the seat.
G WARNING
The airbag may deploy unintentionally.
This poses an increased risk of injury. X Stop the vehicle immediately, paying attention to road and traffic
conditions.
X Secure the vehicle against rolling away (Y page 168).
X Switch the ignition off.
X Open the front-passenger door.
X Remove the child and child seat from the front-passenger seat.
X Make sure that no objects are present that are applying additional
weight to the seat.
The system might otherwise detect the additional weight and inter-
pret the seat occupant's weight as greater than it actually is.
X Make sure that the seat is unoccupied, close the front-passenger
door and switch on the ignition.
X Observe the PASSENGER AIR BAG indicator lamps in the centre
console and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
R A self-diagnosis is carried out. The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps light up simultaneously for approximately six seconds.
R The PASSENGER AIR BAG OFF indicator lamp must then light up
and remain lit after the self-diagnosis. If the indicator lamp is on,
the automatic front-passenger front airbag deactivation system
has disabled the front-passenger front airbag (Y page 50)
R The Front-passenger airbag enabled See Owner's Man‐
Front-passenger airbag enabled See Owner's Man‐
ual ual orFront-passenger airbag disabled See Owner's
Front-passenger airbag disabled See Owner's
Manual
Manual display messages must not be shown in the multifunction
display
X Wait for a period of at least 60 seconds until the necessary system
checks have been completed.
X Make sure that the display messages do not appear in the multi-
function display.
If these conditions are met, the front-passenger seat can be occupied again. Whether the PASSENGER AIR BAG OFF or ON indicator lamp
remains lit or goes out depends on how the automatic front-passenger
front airbag deactivation system classifies the occupant.
If the conditions are not met, the system is not operating correctly. Display
messages
269On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions X
Consult a qualified specialist workshop immediately.
Further information on the automatic front-passenger front airbag
deactivation feature (Y page 50).Lights
i Vehicles with LED light bulbs in the light clusters:
The display message for the corresponding lamp only appears when all the LEDs in the lamp have
failed. Display messages
Possible causes/consequences and
M
MSolutions b
Left dipped Left dipped
beam beam(Example) The bulb in question is faulty.
X Consult a qualified specialist workshop.
or X Check whether you are permitted to replace the bulb yourself
(Y page 126). b
Intell. Light Sys‐ Intell. Light Sys‐
tem inoperative tem inoperative The Intelligent Light System is faulty. The lights remain available with-
out the Intelligent Light System.
X Consult a qualified specialist workshop. b
Malfunction Malfunction
See
SeeOwn‐
Own‐
er's Manual
er's Manual The exterior lighting is faulty.
X Consult a qualified specialist workshop. Vehicles with trailer tow hitch: a fuse may have blown.
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 168).
X Check the fuses (Y page 359).
X If necessary, replace the blown fuse. Observe the warning notes as
you do so.
If the multifunction display still shows the display message: X Consult a qualified specialist workshop. b
Malfunction Malfunction
See
SeeOwn‐
Own‐
er's Manual
er's Manual The exterior lighting is faulty.
X Consult a qualified specialist workshop. b
AUTO lights inoper‐ AUTO lights inoper‐
ative ative The light sensor is faulty.
X
Consult a qualified specialist workshop. b
Switch off lights Switch off lights You are leaving the vehicle and the lights are switched on. A warning
tone also sounds.
X Turn the light switch to the Ãposition. 270
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions b
Switch on headlamps Switch on headlamps You are driving without dipped-beam headlamps.
X
Turn the light switch to the Lorà position. Adaptive Highbeam Adaptive Highbeam
Assist Plus cur‐ Assist Plus cur‐
rently unavailable rently unavailable
See Owner's Manual See Owner's Manual Adaptive Highbeam Assist Plus is deactivated and temporarily inop-
erative.
Possible causes:
R The windscreen is dirty in the camera's field of vision.
R Visibility is impaired due to heavy rain, snow or fog.
X Clean the windscreen.
If the system detects that the camera is fully operational again, the Adaptive Highbeam Assist Plus available again Adaptive Highbeam Assist Plus available again message is
displayed.
Adaptive Highbeam Assist Plus is operational again. Adaptive Highbeam Adaptive Highbeam
Assist Plus inoper‐ Assist Plus inoper‐
ative ative Adaptive Highbeam Assist Plus is faulty.
X Consult a qualified specialist workshop. Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top up coolant See Top up coolant See
Owner's Manual Owner's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X Top up the coolant, observing the warning notes before doing so
(Y page 335).
If you have to top up the coolant frequently: X Contact a qualified specialist workshop and have the engine cooling
system checked. ? The fan motor is faulty.
X If the coolant temperature is below 120 †, continue driving to the
nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. Display
messages
271On-board computer and displays Z